انجنيئرنگ پلاسٽڪ جي ترقي يافته ٽوئن-اسڪريو Extrusion ٽيڪنالاجي پروسيسنگ حل ۽ انڊسٽري ايپليڪيشنون

عالمي صنعتي ترقي جي تيز رفتار سان, گاڏين ۾ اعلي ڪارڪردگي مواد جي طلب, برقي ۽ اليڪٽرانڪ, اڏاوت, طبي ۽ ٻين شعبن ۾ ڏينهون ڏينهن اضافو ٿيندو پيو وڃي. انجنيئرنگ پلاسٽڪ, هڪ اهم اعلي ڪارڪردگي مواد جي طور تي, تدريجي طور تي روايتي ڌاتو مواد ۽ عام پلاسٽڪ کي ڪيترن ئي بنيادي ايپليڪيشن منظرنامن ۾ تبديل ڪيو ويو آهي ڇاڪاڻ ته انهن جي بهترين مشيني خاصيتن جي ڪري, گرمي مزاحمت, corrosion مزاحمت, dimensional استحڪام ۽ processability. Twin-screw extrusion ٽيڪنالاجي انجنيئرنگ پلاسٽڪ مرکبات جي بنيادي پروسيسنگ ٽيڪنالاجي آهي, ۽ extrusion سامان جي ڪارڪردگي سڌو سنئون معيار کي طئي ڪري ٿو, پيداوار جي ڪارڪردگي ۽ انجنيئرنگ پلاسٽڪ جي شين جي درخواست جو اثر.

اسان انجنيئرنگ پلاسٽڪ پروسيسنگ لاءِ پروفيشنل ٽوئن اسڪرو اخراج حل فراهم ڪرڻ لاءِ پرعزم آهيون, اسان جي آزاد طور تي ترقي يافته ۽ ٺاهيل HTS سيريز جي extruders تي ڀروسو ڪندي اعلي ٽورڪ گيرو باڪس سان, جيڪي خاص طور تي انجنيئرنگ پلاسٽڪ جي پروسيسنگ خاصيتن ۽ ايپليڪيشن جي ضرورتن لاءِ ٺهيل آهن. هي آرٽيڪل ڪارڪردگي جي خاصيتن تي تفصيلي وضاحت ڪندو, درجه بندي, انجنيئرنگ پلاسٽڪ جي پروسيسنگ مشڪلات, انجنيئرنگ پلاسٽڪ پروسيسنگ ۾ ٽوئن-سڪرو extrusion ٽيڪنالاجي جو بنيادي ڪردار, اسان جي HTS سيريز extruders جي فائدن ۽ انجنيئرنگ پلاسٽڪ لاء انهن جي ٽارگيٽ موافقت, انهي سان گڏ مخصوص ايپليڪيشن فيلڊ, پروسيسنگ ٽيڪنالاجي ۽ عام مسئلا ۽ حل. تفصيلي ٽيڪنيڪل پيٽرولن کي پورو ڪندي, پروسيسنگ تفصيل ۽ صنعت جي درخواست ڪيس, مضمون کي وڌايو ويندو 3000-4000 لفظ, انجنيئرنگ پلاسٽڪ پروسيسنگ ادارن لاءِ جامع ۽ پيشه ور حوالو فراهم ڪرڻ, ٽيڪنيشين ۽ لاڳاپيل عملي.

1. انجنيئرنگ پلاسٽڪ انڊسٽري جو جائزو ۽ بنيادي ڪارڪردگي خاصيتن

1.1 انجنيئرنگ پلاسٽڪ انڊسٽري جي موجوده صورتحال ۽ ترقي جو رجحان

انجنيئرنگ پلاسٽڪ پلاسٽڪ مواد جي هڪ طبقي جو حوالو ڏئي ٿو جيڪو ساخت جي مواد جي طور تي استعمال ڪري سگهجي ٿو ۽ وڏي درجه حرارت جي حد ۾ ميڪيڪل لوڊ برداشت ڪري ٿو.. عام پلاسٽڪ جي مقابلي ۾ (جهڙوڪ polyethylene PE, polypropylene پي پي, polyvinyl chloride PVC), انجنيئرنگ پلاسٽڪ کي وڌيڪ شاندار جامع ڪارڪردگي آهي, ۽ صنعتي پيداوار ۽ اعلي-آخر پيداوار جي پيداوار ۾ سخت استعمال جي ضرورتن کي پورا ڪري سگهو ٿا. تازن سالن ۾, ھيٺئين صنعتن جي واڌاري جي ذريعي ھلايو ويو جھڙوڪ آٽو موٽر لائٽ ويٽ, برقي ۽ اليڪٽرانڪ انٽيليجنس, ۽ طبي اوزار اعلي-آخر, گلوبل انجنيئرنگ پلاسٽڪ مارڪيٽ هڪ مستحڪم ۽ تيز رفتار ترقي جو رجحان ڏيکاريو آهي.

لاڳاپيل صنعت جي انگن اکرن موجب, عالمي انجنيئرنگ پلاسٽڪ مارڪيٽ سائيز کان وڌي وئي آهي 100 بلين آمريڪي ڊالر, ۽ ان جي مرڪب سالياني واڌ جي شرح برقرار رکڻ جي اميد آهي 7%-10% ايندڙ پنجن سالن ۾. انهن مان, ايشيا-پئسفڪ دنيا جو سڀ کان وڏو انجنيئرنگ پلاسٽڪ جي پيداوار ۽ استعمال مارڪيٽ آهي, کان وڌيڪ حساب ڪتاب 55% عالمي مارڪيٽ جو حصو, خاص طور تي گاڏين جي تيز رفتار ترقي جي ڪري, چين ۾ برقي ۽ اليڪٽرانڪ صنعتن, هندستان ۽ ٻيا ملڪ, انهي سان گڏ صنعتي سپورٽ جي صلاحيت ۽ ٽيڪنالاجي جدت جي سطح جي مسلسل بهتري. چين, جيئن دنيا جي سڀ کان وڏي انجنيئرنگ پلاسٽڪ صارف ۽ پيدا ڪندڙ, وڏي مارڪيٽ جي گهرج آهي, ۽ سالياني پيداوار ۽ واپرائڻ ٻه عددي شرح تي وڌي رهيا آهن, خاص طور تي نئين توانائي گاڏين جي شعبن ۾, 5جي مواصلات, ۽ طبي آلات, اعلي ڪارڪردگي انجنيئرنگ پلاسٽڪ جي طلب هڪ ڌماڪي واري ترقي جي رجحان ڏيکاريندي آهي.

انجنيئرنگ پلاسٽڪ انڊسٽري جي ترقي جو رجحان بنيادي طور تي پنجن حصن ۾ ظاهر ٿئي ٿو: پهريون, اعلي ڪارڪردگي ۽ ڪارڪردگي. ھيٺئين شعبن ۾ استعمال جي ضرورتن جي مسلسل سڌاري سان, انجنيئرنگ پلاسٽڪ اعلي گرمي مزاحمت جي طرف ترقي ڪري رهيا آهن, اعلي طاقت, بهتر لباس مزاحمت ۽ خاص ڪم (جيئن ته شعله retardance, ضدي, اينٽي بيڪٽيريل, تابڪاري جي مزاحمت), اعلي درجه حرارت جي سخت ڪم ڪندڙ ماحول کي اپنائڻ لاء, اعلي دٻاء, corrosion ۽ تاب; ٻيون, هلڪو وزن ۽ انضمام. گاڏين ۾, فضائي ۽ ٻيا شعبا, توانائي جي بچت ۽ اخراج ۾ گهٽتائي جا مقصد حاصل ڪرڻ لاءِ, انجنيئرنگ پلاسٽڪ کي تيزيء سان دھات جي مواد کي تبديل ڪرڻ لاء استعمال ڪيو ويندو آهي, ۽ پيداوار جي جوڙجڪ جي انضمام اعلي ۽ اعلي ٿي رهيو آهي, جيڪو حصن جو تعداد گھٽائي سگھي ٿو, پيداوار جي عمل کي آسان ڪرڻ ۽ خرچ گھٽائڻ; ٽيون, ماحولياتي تحفظ ۽ recyclability. عالمي ماحولياتي تحفظ جي پاليسين کي مضبوط ڪرڻ ۽ ماحولياتي تحفظ جي شعور جي بهتري سان, ري سائیکلبل انجنيئرنگ پلاسٽڪ جي ترقي ۽ ايپليڪيشن, بايوڊ گراڊبل انجنيئرنگ پلاسٽڪ ۽ ماحول دوست پروسيسنگ ٽيڪنالاجيون صنعت جو مرڪز بڻجي ويون آهن, پلاسٽڪ ڪچري جي ڪري ماحولياتي آلودگي کي گهٽائڻ; چوٿون, انٽيليجنس ۽ پروسيسنگ سامان جي درستگي. انجنيئرنگ پلاسٽڪ کي اعلي پروسيسنگ مشڪل ۽ سخت معيار جي گهرج آهي, جيڪي پروسيسنگ سامان تي اعلي گهرجن کي اڳتي وڌايو. ذهين, درست ۽ ڪارائتو ٽوئن اسڪرو extruders ۽ خودڪار پيداوار جون لائينون صنعت جو مکيه وهڪرو بڻجي چڪا آهن, حقيقي وقت جي نگراني ڪرڻ, خودڪار پيٽرولر جي ترتيب ۽ پروسيسنگ جي عمل جي اڳڪٿي واري سار سنڀال; پنجون, ايپليڪيشن فيلڊ جي تنوع. انجنيئرنگ پلاسٽڪ سستي طور تي روايتي گاڏين کان وڌي رهيا آهن, اليڪٽرڪ ۽ اليڪٽرانڪ شعبن کي نئين توانائي ڏانهن, طبي, فضائي خلا, تعميراتي ۽ ٻيا اڀرندڙ شعبا, نئين مارڪيٽ جي جڳهه کي کولڻ.

هن پس منظر جي خلاف, ٽوئن-سکرو extrusion ٽيڪنالاجي, جيئن انجنيئرنگ پلاسٽڪ مرڪب جي بنيادي پروسيسنگ ٽيڪنالاجي, انجنيئرنگ پلاسٽڪ جي ادارن جي مقابلي کي بهتر ڪرڻ لاء اهم بڻجي چڪو آهي. انجنيئرنگ پلاسٽڪ اوور گرم ڪرڻ ۽ هائيڊولائيٽڪ تباهي لاءِ حساس هوندا آهن, ۽ پروسيسنگ جي درجه حرارت تي اعلي گهرجون آهن, ڪٽڻ واري قوت, رهائش جو وقت ۽ گرمي پد ڪنٽرول سڌائي. اسان جي HTS سيريز extruders خاص طور تي انجنيئرنگ پلاسٽڪ جي پروسيسنگ خاصيتن لاء ٺهيل آهن, اعلي torque سان, تيز رفتار, درست گرمي پد ڪنٽرول ۽ شاندار dispersibility, جيڪو مؤثر طريقي سان انجنيئرنگ پلاسٽڪ جي پروسيسنگ مشڪلاتن کي حل ڪري سگهي ٿو ۽ ادارن کي اعلي معيار حاصل ڪرڻ ۾ مدد ڪري ٿو, موثر ۽ مستحڪم پيداوار.

1.2 انجنيئرنگ پلاسٽڪ جي بنيادي ڪارڪردگي خاصيتون

عام پلاسٽڪ ۽ ڌاتو مواد سان مقابلي ۾, انجنيئرنگ پلاسٽڪ منفرد جامع ڪارڪردگي آهي, جيڪو مختلف صنعتي شعبن ۾ انهن جي وسيع ايپليڪيشن کي طئي ڪري ٿو. انجنيئرنگ پلاسٽڪ جي بنيادي ڪارڪردگي جون خاصيتون بنيادي طور تي هيٺين پنجن حصن ۾ ظاهر ٿين ٿيون, جيڪي انهن جي پروسيسنگ ٽيڪنالاجي ۽ سامان لاءِ خاص گهرجون پڻ پيش ڪن ٿا:

1.2.1 بهترين گرمي مزاحمت ۽ ٿڌي مزاحمت

انجنيئرنگ پلاسٽڪ ۾ هڪ وسيع درجه حرارت موافقت جي حد آهي, جيڪو سٺي مشيني ملڪيت کي برقرار رکي سگهي ٿو (طاقت, سختي, سختي) ٻنهي اعلي ۽ گهٽ درجه حرارت جي ماحول ۾. عام پلاسٽڪ جي مقابلي ۾, جيڪي عام طور تي 80-120 ℃ تي پنهنجون مشيني خاصيتون وڃائي ڇڏيندا آهن, اڪثر انجنيئرنگ پلاسٽڪ 100-250 ℃ تي مستحڪم ڪم ڪري سگهن ٿيون, ۽ ڪجهه خاص انجنيئرنگ پلاسٽڪ (جهڙوڪ PEEK, پي آءِ) 300 ℃ کان مٿي گرمي پد تي به ڪم ڪري سگهي ٿو. ساڳئي وقت ۾, انجنيئرنگ پلاسٽڪ پڻ سٺي ٿڌي مزاحمت آهي, جيڪا گهٽ درجه حرارت تي سٺي سختي برقرار رکي سگهي ٿي (هيٺ -40 ℃), ۽ ڀڃڻ آسان ناهي. هي ڪارڪردگي انجنيئرنگ پلاسٽڪ کي سخت گرمي جي ماحول ۾ استعمال لاء مناسب بڻائي ٿو, جهڙوڪ گاڏين جي انجڻ جا حصا (اعلي درجه حرارت) ۽ ٻاهرين برقي سامان (گھٽ درجه حرارت).

انجنيئرنگ پلاسٽڪ جي بهترين گرمي مزاحمت جو بنيادي سبب سندن خاص molecular ساخت جي ڪري آهي (جهڙوڪ خوشبودار انگوزي, heterocyclic rings) ۽ مضبوط intermolecular قوتون, جنهن ڪري انهن کي پگھلڻ آسان ناهي ۽ تيز گرمي پد تي گلڻ. بهرحال, اهو پڻ پروسيسنگ ۾ ڪجهه مشڪلات آڻيندو آهي: انهن کي ڳرڻ ۽ پلاسٽڪائيز ڪرڻ لاءِ اعليٰ درجي جي درجه حرارت جي ضرورت آهي, ۽ گرميء جي خراب ٿيڻ کان بچڻ لاء صحيح درجه حرارت ڪنٽرول جي ضرورت آهي.

1.2.2 سٺي corrosion مزاحمت ۽ Durability

انجنيئرنگ پلاسٽڪ شاندار ڪيميائي استحڪام ۽ corrosion مزاحمت آهي, ۽ تيزاب سان خراب ٿيڻ آسان ناهي, alkalis, لوڻ, نامياتي محلول ۽ ٻيا ڪيميائي. ڌاتو مواد سان مقابلي ۾, جن کي زنگ ۽ زنگ ڪرڻ آسان آهي, انجنيئرنگ پلاسٽڪ سخت ڪيميائي ماحول ۾ گهڻي خدمت زندگي آهي. مثال طور, پوليامائيڊ (پي اي) انجنيئرنگ پلاسٽڪ اڪثر نامياتي solvents ۽ ڪمزور تيزابي ۽ alkalis جي مزاحمتي آهن; polycarbonate (پي سي) انجنيئرنگ پلاسٽڪ غير oxidizing تيزابي ۽ لوڻ جي corrosion جي مزاحمتي آهن; polyphenylene sulfide (پي پي ايس) انجنيئرنگ پلاسٽڪ لڳ ڀڳ سڀني ڪيميائي کان corrosion جي مزاحمتي آهن سواء مضبوط آڪسائيڊنگ تيزابي.

ان کان علاوه, انجنيئرنگ پلاسٽڪ ۾ سٺي موسم جي مزاحمت ۽ عمر جي مزاحمت آهي, ۽ سج جي روشنيءَ جي اثر هيٺ عمر ۽ زوال ڪرڻ آسان ناهي, مينهن, آڪسيجن ۽ ٻيا ماحولياتي عنصر, جيڪو ٻاهرين ۽ سخت ماحول ۾ انهن جي ڊگهي مدت جي مستحڪم استعمال کي يقيني بڻائي ٿو. هي ڪارڪردگي انجنيئرنگ پلاسٽڪ کي وڏي پيماني تي ڪيميائي سامان ۾ استعمال ڪري ٿو, ٻاهرين برقي سامان, گاڏين جي ٻاهرين حصن ۽ ٻين شعبن.

1.2.3 آسان پروسيسنگ ۽ اعلي پيداوار جي ڪارڪردگي

ڌاتو مواد سان مقابلي ۾, انجنيئرنگ پلاسٽڪ کي آسان پروسيسنگ جا فائدا آهن, سادي پيداوار جي عمل ۽ اعلي پيداوار ڪارڪردگي. ڌاتو مواد عام طور تي پيچيده پروسيسنگ جي طريقيڪار جي ضرورت هوندي آهي جهڙوڪ جڙڻ, ڪاسٽ ڪرڻ, مشيني, جنهن ۾ توانائي جو استعمال وڌيڪ هوندو آهي, گھٽ ڪارڪردگي ۽ اعلي قيمت; جڏهن ته انجنيئرنگ پلاسٽڪ extrusion ذريعي عمل ڪري سگهجي ٿو, انجيڪشن مولڊنگ, بلو مولڊنگ ۽ ٻيا طريقا, جنهن سان وڏي پئماني تي پيداوار ٿي سگهي ٿي, پيداوار جي عمل کي آسان ڪرڻ, توانائي واپرائڻ ۽ پيداوار جي قيمت گھٽائڻ. مثال طور, انجيڪشن مولڊنگ ذريعي هڪ انجنيئرنگ پلاسٽڪ آٽوميٽڪ حصو جو پروسيسنگ چڪر صرف چند سيڪنڊن کان ڏهن سيڪنڊن تائين آهي, جڏهن ته ساڳئي ڌاتو حصي جي پروسيسنگ چڪر ڪيترن ئي ڪلاڪن کان ڪيترن ڏينهن تائين وٺي سگھي ٿي.

بهرحال, انجنيئرنگ پلاسٽڪ ۾ پڻ ڪجهه پروسيسنگ مشڪلاتون آهن: اهي وڌيڪ گرمائش ۽ هائيڊولائيٽڪ تباهي لاء حساس آهن, ۽ ختم ڪرڻ آسان آهن جيڪڏهن پروسيسنگ جي درجه حرارت تمام گهڻي آهي يا رهائش جو وقت تمام ڊگهو آهي; ساڳئي وقت ۾, ڪجهه انجنيئرنگ پلاسٽڪ (جهڙوڪ PA) اعلي پاڻي جذب آهي, جيڪو پروسيسنگ اثر ۽ پيداوار جي معيار کي متاثر ڪري ٿو. تنهن ڪري, پروسيسنگ جي معيار کي يقيني بڻائڻ لاءِ پروفيشنل پروسيسنگ سامان ۽ سائنسي پروسيسنگ ٽيڪنالاجي استعمال ڪرڻ ضروري آهي.

1.2.4 بهترين طول و عرض استحڪام ۽ برقي موصليت

انجنيئرنگ پلاسٽڪ جي سٺي dimensional استحڪام آهي, ۽ ڇڪڻ جي شرح ننڍڙو آهي (عام طور تي 0.3%-1.5%) پروسيسنگ ۽ استعمال دوران, جيڪو مصنوعات جي طول و عرض جي درستگي کي يقيني بڻائي سگهي ٿو ۽ خراب ٿيڻ کان بچڻ. هي ڪارڪردگي خاص طور تي اعلي سڌائي حصن لاء اهم آهي, جهڙوڪ برقي ڪنيڪٽر, گاڏين جي درستگي جا اجزاء, طبي آلات, وغيره. انجنيئرنگ پلاسٽڪ جي سٺي dimensional استحڪام بنيادي طور تي سندن اعلي crystallinity سبب آهي, گھٽ پاڻي جذب (سواءِ ڪجهه قسمن جهڙوڪ PA) ۽ مضبوط intermolecular قوتون.

ان کان علاوه, سڀ کان وڌيڪ انجنيئرنگ پلاسٽڪ شاندار برقي موصليت جي ڪارڪردگي آهي, جيڪو هڪ وسيع درجه حرارت جي حد ۽ تعدد جي حد ۾ سٺي موصليت جي ڪارڪردگي کي برقرار رکي سگهي ٿو, ۽ بجلي ۽ آرڪ کي هلائڻ لاء آسان ناهي. هي انجنيئرنگ پلاسٽڪ کي وڏي پيماني تي برقي ۽ اليڪٽرانڪ شعبن ۾ استعمال ڪري ٿو, جهڙوڪ وائرنگ بورڊ, ڪيبل لاڳاپا, ڳنڍيندڙ, رلي, موٽر ۽ ٻيا برقي جزا.

1.2.5 هلڪو وزن ۽ اعلي مخصوص طاقت, شاندار لباس مزاحمت

انجنيئرنگ پلاسٽڪ ۾ هلڪو وزن جون خاصيتون آهن (کثافت آهي 1/3-1/5 ڌاتو مواد جي) ۽ اعلي مخصوص طاقت (طاقت في يونٽ وزن جي برابر يا ان کان به وڌيڪ ڌاتو مواد جي ڀيٽ ۾). مثال طور, شيشي فائبر مضبوط پوليامائيڊ جي مخصوص طاقت (PA66+GF30) عام ڪاربان اسٽيل جي ڀيٽ ۾ وڌيڪ آهي, جيڪو موثر طريقي سان مصنوعات جي وزن کي گھٽائي سگھي ٿو جڏهن ته مشيني ڪارڪردگي کي يقيني بڻائي. هي ڪارڪردگي خاص طور تي گاڏين ۾ اهم آهي, ايرو اسپيس ۽ ٻيا شعبا جيڪي ھلڪو وزن ۽ توانائي جي بچت جو تعاقب ڪن ٿا, جيڪو ايندھن جي استعمال ۽ ڪاربن جي اخراج کي گھٽائي سگھي ٿو.

ساڳئي وقت ۾, انجنيئرنگ پلاسٽڪ ۾ پڻ شاندار لباس مزاحمت ۽ رگڙ مزاحمت آهي, ۽ رگڙ جي کوٽائي ننڍي آهي, جنهن کي لباس-مزاحمتي حصن جي پيداوار ۾ استعمال ڪري سگهجي ٿو (جهڙوڪ گيئر, بيرنگ, سلائيڊنگ بلاڪ) بغير اضافي لوبريڪيشن يا گهٽ لوبريڪيشن سان, مصنوعات جي سار سنڀال جي قيمت گھٽائڻ. مثال طور, polyoxyethylene (پوم) انجنيئرنگ پلاسٽڪ شاندار لباس مزاحمت آهن ۽ طور سڃاتو وڃي ٿو “پلاسٽڪ اسٽيل”, جنهن کي وڏي پيماني تي خودڪار گيئر جي پيداوار ۾ استعمال ڪيو ويندو آهي, بجلي جا حصا ۽ ٻيا ڪپڙا مزاحمتي حصا.

1.3 انجنيئرنگ پلاسٽڪ جي عام درجه بندي

انجنيئرنگ پلاسٽڪ کي انهن جي ڪيميائي ساخت جي مطابق مختلف قسمن ۾ ورهائي سگهجي ٿو, ڪارڪردگي جي سطح ۽ ايپليڪيشن فيلڊ. عام درجه بندي جا طريقا هن ريت آهن, جيڪو مختلف انجنيئرنگ پلاسٽڪ جي پروسيسنگ خاصيتن ۽ ايپليڪيشن جي منظرنامي کي بهتر سمجهڻ ۾ مدد ڪري ٿو, ۽ مناسب extrusion سامان ۽ پروسيسنگ ٽيڪنڪ چونڊيو:

1.3.1 ڪارڪردگي سطح جي لحاظ کان درجه بندي

ڪارڪردگي جي سطح جي مطابق, انجنيئرنگ پلاسٽڪ جنرل انجنيئرنگ پلاسٽڪ ۽ خاص انجنيئرنگ پلاسٽڪ ۾ ورهائي سگهجي ٿو.

• جنرل انجنيئرنگ پلاسٽڪ: اهي سڀ کان وڏي پيماني تي استعمال ٿيل انجنيئرنگ پلاسٽڪ آهن, نسبتا بالغ پيداوار ٽيڪنالاجي سان, وچولي قيمت ۽ سٺي جامع ڪارڪردگي. بنيادي قسمن ۾ پوليامائيڊ شامل آهن (پي اي), polycarbonate (پي سي), polyoxyethylene (پوم), polyethylene terephthalate (پي اي ٽي), polybutylene terephthalate (پي بي ٽي), وغيره. جنرل انجنيئرنگ پلاسٽڪ خاص طور تي گاڏين ۾ استعمال ٿيندا آهن, برقي ۽ اليڪٽرانڪ, گھر جي سامان ۽ ٻين شعبن, جهڙوڪ گاڏين جا حصا, برقي رابط, گھر جي سامان جي شيل, وغيره.
• خاص انجنيئرنگ پلاسٽڪ: انهن وٽ وڌيڪ شاندار ڪارڪردگي آهي (جيئن ته اعلي گرمي مزاحمت, corrosion مزاحمت, مشيني خاصيتون) عام انجنيئرنگ پلاسٽڪ جي ڀيٽ ۾, پر پيداوار ٽيڪنالاجي پيچيده آهي ۽ قيمت اعلي آهي. مکيه varieties polyphenylene sulfide شامل آهن (پي پي ايس), polyether ether ketone (PEEK), پوليمائيڊ (پي آءِ), polysulfone (پي ايس يو), polyethersulfone (پي اي ايس), وغيره. خاص انجنيئرنگ پلاسٽڪ خاص طور تي اعلي-آخر جي شعبن ۾ استعمال ٿيندا آهن جهڙوڪ ايرو اسپيس, طبي آلات, نئين توانائي, ۽ ڪيميائي سامان, جهڙوڪ ايرو اسپيس اجزاء, طبي امپلانٽس, تيز گرمي پد مزاحمتي برقي جزا, وغيره.

1.3.2 ڪيميائي ساخت جي لحاظ کان درجه بندي

molecular زنجير جي ڪيميائي جوڙجڪ موجب, انجنيئرنگ پلاسٽڪ polyamide ۾ ورهائي سگهجي ٿو (پي اي), polycarbonate (پي سي), polyoxyethylene (پوم), پاليسٽر (پي اي ٽي, پي بي ٽي), polyphenylene sulfide (پي پي ايس), polyether ether ketone (PEEK), وغيره. هر قسم جي انجنيئرنگ پلاسٽڪ جي پنهنجي منفرد ڪارڪردگي خاصيتون ۽ پروسيسنگ گهرجن:

• پوليامائيڊ (پي اي): پڻ نايلان طور سڃاتو وڃي ٿو, ان ۾ بهترين مشيني طاقت آهي, مزاحمت پائڻ, سختي ۽ ڪيميائي مزاحمت, پر اعلي پاڻي جذب آهي, جيڪو طول و عرض جي استحڪام کي متاثر ڪري ٿو. عام قسمون شامل آهن PA6, پي اي 66, پي اي 11, پي اي 12, وغيره. اهو وڏي پيماني تي خودڪار حصن ۾ استعمال ڪيو ويندو آهي (گيئرس, بيرنگ, ڪيترائي ڀيرا استعمال ڪرڻ), برقي رابط, ٽيڪسٽائل فائبر, وغيره.
• پولي ڪاربونيٽ (پي سي): اهو شاندار شفافيت آهي, اثر قوت, گرمي مزاحمت ۽ برقي موصليت, پر خراب لباس مزاحمت آهي ۽ ڇڪڻ آسان آهي. اهو وڏي پيماني تي برقي ۽ اليڪٽرانڪ شعبن ۾ استعمال ڪيو ويندو آهي (وائرنگ بورڊ, چراغ ڍڪ), گاڏين جا شعبا (هيڊ ليمپ لينس, اوزار پينل), طبي شعبا (طبي ڪنٽينرز), وغيره.
• پولي آڪسيميٿيلين (پوم): اهو شاندار لباس مزاحمت آهي, رگڙ مزاحمت, dimensional استحڪام ۽ مشيني طاقت, ۽ پاڻي جذب ڪرڻ آسان ناهي. طور سڃاتو وڃي ٿو “پلاسٽڪ اسٽيل” ۽ وڏي پيماني تي خودڪار حصن ۾ استعمال ڪيو ويندو آهي (گيئرس, سلائيڊنگ بلاڪ), برقي اجزاء (سوئچز, بيرنگ), مشيني حصن, وغيره.
• پاليسٽر (پي اي ٽي, پي بي ٽي): PET شاندار شفافيت آهي, گرمي مزاحمت ۽ مشيني طاقت, ۽ خاص طور تي فائبر ۾ استعمال ٿيندو آهي, فلمون, بوتلون ۽ ٻيا شعبا; PBT بهترين ڪيميائي مزاحمت ڪئي آهي, برقي موصليت ۽ پروسيسنگ جي روانگي, ۽ وڏي پيماني تي برقي ۽ اليڪٽرانڪ شعبن ۾ استعمال ڪيو ويندو آهي (ڳنڍيندڙ, رلي), گاڏين جا حصا, وغيره.
• Polyphenylene سلفائيڊ (پي پي ايس): اهو شاندار گرمي مزاحمت ڪئي آهي (ڊگھي-مدت استعمال گرمي پد 200-220 ℃ تائين), corrosion مزاحمت, شعاع retardancy ۽ برقي موصليت, پر ڪمزور سختي آهي. اهو وڏي پيماني تي استعمال ڪيو ويندو آهي اعلي-پد جي مزاحمتي برقي حصن ۾, گاڏين جي انجڻ جا حصا, chemical equipment, وغيره.
• Polyether Ether Ketone (PEEK): It has excellent comprehensive performance, long-term use temperature up to 250-300℃, good corrosion resistance, mechanical strength and biocompatibility. It is mainly used in high-end fields such as aerospace, طبي امپلانٽس, and high-temperature resistant electrical components.

1.3.3 Classification by Application Field

According to the application field, engineering plastics can be divided into automotive-grade engineering plastics, electrical-grade engineering plastics, medical-grade engineering plastics, aerospace-grade engineering plastics, وغيره. Different application fields have different requirements on the performance of engineering plastics. مثال طور, automotive-grade engineering plastics require good heat resistance, impact strength and weather resistance; electrical-grade engineering plastics require good electrical insulation and flame retardancy; ميڊيڪل-گريڊ انجنيئرنگ پلاسٽڪ جي سٺي بايو مطابقت ۽ sterility جي ضرورت آهي; ايرو اسپيس-گريڊ انجنيئرنگ پلاسٽڪ کي سٺي تيز گرمي جي مزاحمت جي ضرورت آهي, گھٽ وزن ۽ اعلي طاقت.

2. انجنيئرنگ پلاسٽڪ جي ڪور پروسيسنگ ٽيڪنالاجي: ٽوئن-اسڪريو Extrusion ٽيڪنالاجي

انجنيئرنگ پلاسٽڪ پروسيسنگ ۾ خاص طور تي نڪرڻ شامل آهي, انجيڪشن مولڊنگ, بلو مولڊنگ, مولڊنگ ۽ ٻيا طريقا, جن مان ٽوئن اسڪرو خارج ڪرڻ واري ٽيڪنالاجي انجنيئرنگ پلاسٽڪ مرکبات جي پيداوار لاءِ بنيادي ٽيڪنالاجي آهي. (جهڙوڪ تبديل ٿيل انجنيئرنگ پلاسٽڪ, مضبوط انجنيئرنگ پلاسٽڪ) ۽ نيم تيار ڪيل مصنوعات (جهڙوڪ پائپ, چادر, فائبر). سنگل سکرو extrusion ٽيڪنالاجي سان مقابلي ۾, ٽوئن-سڪرو خارج ڪرڻ واري ٽيڪنالاجي کي مضبوط ڇڪڻ واري قوت جا فائدا آهن, سٺو ملائڻ جو اثر, صحيح درجه حرارت ڪنٽرول, مختصر رهائش جو وقت ۽ خام مال کي مضبوط موافقت, which can effectively solve the processing difficulties of engineering plastics (such as sensitivity to overheating and hydrolytic degradation, poor mixing effect, low processing efficiency) and ensure the quality of engineering plastic products.

2.1 Processing Difficulties of Engineering Plastics and Requirements for Extrusion Equipment

As mentioned earlier, engineering plastics have excellent comprehensive performance, but their processing difficulty is also higher than that of general plastics, mainly due to their special molecular structure and performance characteristics. The main processing difficulties of engineering plastics and the corresponding requirements for extrusion equipment are as follows:

2.1.1 Sensitivity to Overheating and Hydrolytic Degradation

Most engineering plastics (جهڙوڪ PA, پي بي ٽي, پي پي ايس) are sensitive to overheating and hydrolytic degradation. If the processing temperature is too high or the residence time in the extruder is too long, the molecular chain of the engineering plastic will break, resulting in thermal decomposition, which will reduce the mechanical properties, heat resistance and other performance of the product, and even cause discoloration, carbonization and other defects. ان کان علاوه, ڪجهه انجنيئرنگ پلاسٽڪ (جهڙوڪ PA) اعلي پاڻي جذب آهي, and the moisture in the material will cause hydrolytic degradation during the high-temperature processing process, affecting the product quality.

This puts forward two key requirements for extrusion equipment: پهريون, precise temperature control capacity, which can strictly control the processing temperature within the optimal range of engineering plastics, avoid local overheating, and the temperature control precision should reach ±1℃; ٻيون, short residence time, which can reduce the time that the material stays in the extruder barrel, avoid thermal decomposition and hydrolytic degradation. Twin-screw extruders have the advantages of short residence time (عام طور تي 1-5 منٽ) and precise temperature control, which are more suitable for engineering plastics processing than single-screw extruders (رهائش جو وقت 5-10 منٽ).

2.1.2 High Requirements on Mixing and Dispersing Effect

In engineering plastics processing, it is often necessary to add modifiers (such as glass fiber, ڪاربان فائبر, talc, شعله retardants, compatibilizers) to improve the performance of the product (such as reinforcing, toughening, flame retardant). مثال طور, adding glass fiber to PA can improve its strength and dimensional stability; adding flame retardants to PBT can improve its flame retardancy. انجنيئرنگ پلاسٽڪ ميٽرڪس ۾ تبديل ڪندڙن جي يونيفارم ملائڻ ۽ ڦهلائڻ حتمي پيداوار جي ڪارڪردگي لاء اهم آهي.. جيڪڏهن اختلاط ۽ منتشر اثر غريب آهي, تبديل ڪندڙ گڏ ٿيندا, پيداوار جي غير معمولي ڪارڪردگي جي نتيجي ۾, ۽ جيتوڻيڪ پيداوار جي ميخانياتي ملڪيت کي گھٽائڻ.

ان لاءِ ٻاھر ڪڍڻ واري سامان جي ضرورت آھي مضبوط ڪنگڻ واري قوت ۽ ملائڻ جي صلاحيت. ٽوئن اسڪرو ٻاھر ڪڍڻ وارا انٽرميشنگ ڪو-گھومندڙ يا ضد گھمندڙ ٽوئن اسڪرو ڍانچي کي اپنائيندا آھن, ۽ اسڪرو جي وچ ۾ لاڳاپي واري حرڪت مضبوط شيئر فورس ۽ گونجڻ واري قوت پيدا ڪري سگهي ٿي, جيڪو مڪمل طور تي تبديل ڪرڻ وارن جي مجموعي کي ٽوڙي سگھي ٿو, انجنيئر پلاسٽڪ ميٽرڪس ۾ هڪجهڙائي سان منتشر ٿيل ترميمن کي ٺاهيو, ۽ ملائڻ ۽ منتشر اثر کي يقيني بڻائي. ان کان علاوه, the modular design of the twin-screw can freely combine different screw elements (such as conveying elements, mixing elements, shearing elements) according to the type of engineering plastic and modifier, further improving the mixing and dispersing effect.

2.1.3 High Requirements on Wear Resistance of Equipment

In the processing of reinforced engineering plastics (such as glass fiber reinforced PA, carbon fiber reinforced PPS), the added glass fiber, carbon fiber and other modifiers have high hardness, which will cause serious wear to the screw and barrel of the extruder during the extrusion process. If the screw and barrel have poor wear resistance, they will be worn quickly, resulting in reduced shearing force and mixing capacity of the extruder, affecting the product quality and reducing the service life of the equipment.

This requires the screw and barrel of the extruder to be made of high-quality wear-resistant materials and processed by advanced manufacturing technology. Our HTS series extruders adopt imported wear-resistant alloy steel for the screw and barrel, and undergo bimetallic composite treatment or laser cladding treatment, which greatly improves the wear resistance and corrosion resistance of the screw and barrel, and can adapt to the processing of reinforced engineering plastics with high hardness modifiers.

2.1.4 High Requirements on Processing Fluidity and Pressure Control

Some engineering plastics (such as PPS, PEEK) have high viscosity and poor processing fluidity, which require the extruder to have strong conveying capacity and pressure control capacity to ensure the smooth progress of extrusion. If the conveying capacity is insufficient or the pressure control is unstable, it will cause uneven extrusion speed, unstable product size, and even equipment blockage.

Twin-screw extruders have strong conveying capacity and stable pressure control capacity. The intermeshing of the twin screws can generate strong pumping force, which can effectively convey high-viscosity engineering plastic materials; ساڳئي وقت ۾, the extruder is equipped with a high-precision pressure sensor, which can monitor the extrusion pressure in real time and adjust the screw speed and feeding speed automatically to ensure the stability of the extrusion pressure and the smooth progress of processing.

2.2 Working Principle and Process Flow of Engineering Plastics Twin-Screw Extrusion

The twin-screw extrusion process of engineering plastics is a complex physical and chemical process, which involves the interaction of multiple factors such as temperature, دٻاءُ, shear force and time. The core purpose is to melt and plasticize the engineering plastic raw materials and modifiers, mix them uniformly, and then extrude them into the required shape (such as particles, پائپ, چادر, فائبر) through the die head. The specific working principle and process flow are as follows:

2.2.1 خام مال جي علاج

Raw material pretreatment is the foundation of engineering plastics extrusion processing, which directly affects the processing effect and product quality. The raw materials of engineering plastics mainly include engineering plastic resin (جهڙوڪ PA, پي سي, پوم), modifiers (such as glass fiber, ڪاربان فائبر, talc, شعله retardants), compatibilizers, lubricants and other additives. The pretreatment steps are as follows:

• Drying Treatment: Most engineering plastics (جهڙوڪ PA, پي بي ٽي, پي پي ايس) اعلي پاڻي جذب آهي, and the moisture in the raw materials will cause hydrolytic degradation during high-temperature processing, resulting in product defects (such as bubbles, cracks, reduced mechanical properties). تنهن ڪري, the raw materials must be dried before processing. The drying temperature and time are determined according to the type of engineering plastic: مثال طور, PA6 is dried at 80-100℃ for 4-6 ڪلاڪ, PA66 is dried at 100-120℃ for 6-8 ڪلاڪ, PBT is dried at 120-140℃ for 2-4 ڪلاڪ, PPS is dried at 150-160℃ for 3-5 ڪلاڪ. The moisture content of the dried raw materials should be controlled below 0.1%-0.2%.
• Premixing Treatment: According to the formula ratio, the dried engineering plastic resin, modifiers and additives are put into a high-speed mixer for premixing. The purpose of premixing is to make the modifiers and additives uniformly adhere to the surface of the resin particles, improve the mixing effect during extrusion, and avoid local agglomeration of modifiers. The mixing speed is generally 800-1200 آر پي ايم, and the mixing time is 5-10 منٽ. For some modifiers with poor compatibility (such as glass fiber and PA), a compatibilizer should be added during premixing to improve the compatibility between the modifier and the resin.
• Crushing and Sieving: For engineering plastic resins with large particle size or modifiers with uneven particle size (such as glass fiber), crushing and sieving treatment should be carried out to ensure the uniformity of raw materials and avoid affecting the mixing and dispersing effect during extrusion. The particle size of the crushed raw materials should be controlled at 20-40 ميش.

2.2.2 Feeding and Conveying

The premixed raw materials are sent to the feeding hopper of the twin-screw extruder through a screw feeder or a belt feeder. The feeding device of the extruder is usually equipped with a frequency conversion speed regulation function, which can adjust the feeding speed according to the screw speed and extrusion speed to ensure that the materials enter the extrusion cavity stably and uniformly, avoiding material accumulation or insufficient feeding. The feeding hopper is also equipped with a drying device to prevent the raw materials from absorbing moisture again during feeding.

2.2.3 ڳرڻ, Mixing and Shearing

The materials entering the extrusion cavity of the twin-screw extruder are pushed forward continuously by the rotating screws. The extrusion cavity is composed of a screw and a barrel, and the volume of the extrusion cavity gradually decreases along the axis direction. When the screws rotate, the materials are gradually compressed under the action of the screws and the barrel, and the pressure in the extrusion cavity gradually increases (generally 5-15MPa).

ساڳئي وقت ۾, the materials are subjected to strong shear force and friction force generated by the relative movement between the screws and the barrel, as well as between the screw flights. The shear force and friction force can fully break the agglomerates of modifiers, make the modifiers uniformly dispersed in the melted engineering plastic resin, and promote the fusion and compatibility between the modifier and the resin. The friction force can also generate a certain amount of heat, which is combined with the external heating of the barrel (electric heating or steam heating) to make the engineering plastic resin gradually melt and plasticize.

The barrel of the extruder is usually divided into 4-6 درجه حرارت ڪنٽرول سيڪشن (کاڌو سيڪشن, پگھلڻ وارو سيڪشن, مخلوط سيڪشن, homogenizing سيڪشن, مرڻ سر سيڪشن), and the temperature of each section is precisely controlled according to the type of engineering plastic. مثال طور, when processing PA66+GF30 (glass fiber reinforced PA66), the temperature of the feeding section is 120-140℃, the melting section is 250-260℃, the mixing section is 260-270℃, the homogenizing section is 250-260℃, and the die head section is 240-250℃. The precise temperature control can ensure that the resin is fully melted without thermal decomposition, and the modifiers are uniformly dispersed.

2.2.4 Extrusion and Shaping

The fully melted, mixed and dispersed material is pushed to the die head of the extruder by the screws. The die head is designed according to the shape of the final product: for the production of engineering plastic compounds (داڻا), the die head is equipped with multiple circular die holes (the number and size of die holes are determined according to the particle size of the granules); for the production of pipes, چادر, فائبر, the die head is designed into corresponding shapes (such as circular die for pipes, flat die for sheets).

The material is extruded from the die head at a high speed to form continuous semi-finished products (such as strips for granules, پائپ, چادر). The temperature of the die head is slightly lower than that of the homogenizing section, which can prevent the material from decomposing due to excessive temperature and ensure the shaping effect of the semi-finished products. The extrusion speed is controlled according to the type of engineering plastic and the shape of the product, generally ranging from 0.5-5m/min.

2.2.5 Cooling and Solidification

The extruded semi-finished products are sent to a cooling device for rapid cooling and solidification. The cooling method is determined according to the shape of the product: for strips (granule production), water tank cooling is usually used, and the cooling water temperature is controlled at 20-30℃, and the cooling time is 2-5 منٽ; for pipes and sheets, air cooling or water spray cooling is used, and the cooling speed should be controlled to avoid product deformation due to uneven cooling. Rapid cooling can make the semi-finished products solidify quickly, maintain the shape and size of the products, and improve the mechanical properties of the products.

2.2.6 Cutting and Post-Processing

After cooling and solidification, the semi-finished products are processed into the final product through cutting or other post-processing steps. For the production of engineering plastic compounds (داڻا), the cooled strips are sent to a granulator for cutting, and the granulator is equipped with a rotary knife, which can cut the strips into granular products with uniform size (the particle size is generally 2-5mm, which can be adjusted according to customer needs). For the production of pipes and sheets, the cooled semi-finished products are cut into the required length through a cutting machine; for the production of fibers, the cooled filaments are drawn and wound to form fiber products.

ان کان علاوه, the final product also needs to undergo post-processing steps such as screening, inspection and packaging. The screening step is to remove unqualified products (such as too large, too small or agglomerated particles); the inspection step is to detect the performance (such as mechanical strength, گرمي مزاحمت, dimensional accuracy) of the product to ensure that it meets the customer’s requirements; the packaging step is to package the qualified product in a sealed and moisture-proof manner to prevent the product from absorbing moisture and affecting the quality.

2.3 Key Factors Affecting Engineering Plastics Twin-Screw Extrusion Effect

The effect of twin-screw extrusion directly affects the quality and performance of engineering plastic products. There are many factors affecting the extrusion effect, mainly including raw material characteristics, formula ratio, premixing effect, extrusion parameters and die head structure. Mastering these key factors and making scientific adjustments can ensure the stability of the extrusion effect and the consistency of product quality.

2.3.1 Raw Material Characteristics

The type, ذرات جي ماپ, moisture content and purity of raw materials have a great impact on the extrusion effect. مثال طور, the particle size of engineering plastic resin and modifiers should be uniform; if the particle size is uneven, it will lead to uneven melting and mixing of materials. The moisture content of raw materials must be strictly controlled below 0.1%-0.2%; if the moisture content is too high, it will cause hydrolytic degradation of the material and bubbles in the product. The purity of raw materials is also very important; impurities in raw materials (such as metals, stones, مٽي) will not only affect the product quality, but also wear the screw and barrel of the extruder, and even cause equipment blockage.

2.3.2 Formula Ratio

The formula ratio of engineering plastic compounds (the ratio of resin, modifiers and additives) is the key to determining the performance of the product. The type and dosage of modifiers should be determined according to the performance requirements of the product. مثال طور, شامل ڪرڻ 20%-40% of glass fiber to PA can significantly improve its strength and dimensional stability, but excessive glass fiber will reduce the toughness and processing fluidity of the product. The type and dosage of additives also need to be reasonably matched: compatibilizers can improve the compatibility between modifiers and resin, and the dosage is generally 0.5%-2%; lubricants can reduce the friction between materials and equipment, improve processing fluidity, and the dosage is generally 0.3%-1%; antioxidants can prevent the material from thermal oxidation degradation during processing, and the dosage is generally 0.1%-0.5%.

2.3.3 Premixing Effect

Premixing is the foundation of extrusion processing. The uniformity of premixing directly affects the mixing and dispersing effect of modifiers during extrusion. If the premixing is uneven, the modifiers cannot be uniformly adhered to the surface of the resin, resulting in local agglomeration of modifiers, uneven mixing of materials during extrusion, and reduced product performance. To ensure the premixing effect, it is necessary to control the mixing speed, mixing time and mixing temperature: the mixing speed is 800-1200 آر پي ايم, the mixing time is 5-10 منٽ, and the mixing temperature is controlled at 40-60℃ (appropriate temperature can improve the adhesion of additives and promote uniform mixing).

2.3.4 Extrusion Parameters

Extrusion parameters are the most important factors affecting the extrusion effect, mainly including screw speed, extrusion temperature and extrusion pressure.

• ڇڪڻ جي رفتار: The screw speed of twin-screw extruders for engineering plastics generally ranges from 100 جي طرف 1000 آر پي ايم. Our HTS series extruders can reach a maximum speed of 1000 آر پي ايم. The higher the screw speed, the greater the shear force and friction force received by the materials, the better the mixing and dispersing effect of modifiers, and the higher the production efficiency. بهرحال, if the screw speed is too high, the residence time of the materials in the extrusion cavity is too short, resulting in incomplete melting of the resin, مواد جي ناکافي ميلاپ, ۽ اڻ برابري پيداوار جي معيار; جيڪڏهن اسڪرو جي رفتار تمام گهٽ آهي, شيئر فورس ۽ رگڙ قوت ڪافي نه آهي, تبديل ڪرڻ وارا مڪمل طور تي منتشر نٿا ٿي سگهن, ۽ پيداوار جي ڪارڪردگي گهٽ آهي. اسڪرو جي رفتار کي انجنيئرنگ پلاسٽڪ جي قسم ۽ تبديل ڪرڻ واري قسم جي مطابق ترتيب ڏيڻ گهرجي: اعلي viscosity انجنيئرنگ پلاسٽڪ لاء (such as PPS, PEEK), ڪافي پگھلڻ ۽ ملائڻ کي يقيني بڻائڻ لاءِ گھٽ اسڪرو جي رفتار جي ضرورت آھي; مضبوط انجنيئرنگ پلاسٽڪ لاء (such as glass fiber reinforced PA), گلاس فائبر جي يونيفارم ڦهلائڻ کي يقيني بڻائڻ لاء هڪ اعلي اسڪرو رفتار جي ضرورت آهي.
• Extrusion گرمي پد: انجنيئرنگ پلاسٽڪ جي پگھلڻ ۽ پلاسٽائيزيشن کي يقيني بڻائڻ لاءِ اخراج جي درجه حرارت اهم آهي. بيرل ۽ مرڻ واري سر جي هر حصي جو گرمي پد لازمي طور تي انجنيئرنگ پلاسٽڪ جي قسم جي مطابق ڪنٽرول ڪيو وڃي.. The temperature of the feeding section is lower (slightly higher than the drying temperature of the raw materials), which is mainly to prevent the materials from caking and ensure smooth feeding; the temperature of the melting section is medium, which is mainly to promote the melting and plasticization of the resin; the temperature of the mixing section is higher, which is mainly to enhance the shear and mixing effect, and promote the uniform dispersion of modifiers; the temperature of the homogenizing section is slightly lower than the mixing section, which is mainly to ensure the uniform temperature and viscosity of the materials, and avoid thermal decomposition; the temperature of the die head section is slightly lower than the homogenizing section, which is to ensure the shaping effect of the semi-finished products. The temperature control precision should reach ±1℃ to avoid local overheating and thermal decomposition of the material.
• Extrusion پريشر: The extrusion pressure of engineering plastics twin-screw extrusion generally ranges from 5 to 15MPa. The pressure in the extrusion cavity is mainly determined by the compression ratio of the screw, the die hole size and the screw speed. The higher the extrusion pressure, the better the mixing and dispersing effect of materials, and the denser the product. بهرحال, if the pressure is too high, it will increase the energy consumption and wear of the equipment, and even cause the die head to block; if the pressure is too low, the materials cannot be fully compressed and mixed, the product is loose, and the performance is unstable. The extrusion pressure should be adjusted according to the type of engineering plastic and the shape of the product: for high-viscosity materials and products with small die holes, a higher extrusion pressure is needed.

2.3.5 Die Head Structure

The die head structure mainly includes the shape, size and number of die holes, which directly affects the shaping effect and quality of the product. For the production of engineering plastic compounds (داڻا), the die head should be equipped with multiple uniform die holes, and the size of the die holes should be matched with the particle size of the product; for the production of pipes and sheets, the die head should be designed according to the shape and size of the product, and the flow channel of the die head should be smooth to avoid material accumulation and local overheating. The die head should also be equipped with a temperature control device to ensure the uniform temperature of the die head and the stable shaping of the product.

3. Our HTS Series Extruders: Professional Solutions for Engineering Plastics Processing

We have long been engaged in the research, development and production of high-performance twin-screw extruders, and have accumulated rich experience in the field of engineering plastics processing. According to the processing characteristics of engineering plastics (sensitivity to overheating and hydrolytic degradation, high requirements on mixing and dispersing effect, اعلي viscosity) and application needs, we have developed the HTS series twin-screw extruders specially for engineering plastics processing. Our HTS series extruders adopt high-torque gearboxes, with a specific torque of 14Nm/cm³ and a maximum speed of up to 1000rpm, which can obtain higher output, shorter residence time, better dispersibility and more precise temperature control, perfectly adapting to the processing needs of various engineering plastics.

3.1 Core Advantages of HTS Series Extruders for Engineering Plastics Processing

3.1.1 High Torque and High Speed, High Production Efficiency

Engineering plastics have high viscosity and poor processing fluidity, which require the extruder to have strong torque and conveying capacity. Our HTS series extruders adopt high-torque gearboxes independently developed and manufactured by us (HTS PLUS سيريز ۽ HTS SUPER سيريز) or imported from leading European manufacturers (HTS BASIC series), with a specific torque of 14Nm/cm³, which is much higher than that of ordinary twin-screw extruders (general torque is 8-12Nm/cm³). The high torque design ensures that the extruder can stably convey high-viscosity engineering plastic materials, avoid material accumulation and equipment blockage, and improve the stability of the extrusion process.

ساڳئي وقت ۾, the HTS series extruders have a high speed design, with a maximum speed of up to 1000rpm. The high speed can generate strong shear force and mixing force, جيڪو مڪمل طور تي تبديل ڪرڻ وارن جي مجموعي کي ٽوڙي سگھي ٿو, make the modifiers uniformly dispersed in the resin matrix, and improve the mixing and dispersing effect. ان کان علاوه, the high speed design also greatly improves the production efficiency: compared with ordinary extruders, the production efficiency of HTS series extruders can be increased by 30%-50%, which can meet the large-scale production needs of engineering plastics enterprises.

3.1.2 Short Residence Time, Effectively Avoiding Thermal Degradation

As engineering plastics are sensitive to overheating and hydrolytic degradation, the residence time of materials in the extruder is crucial. Our HTS series extruders adopt an optimized screw structure and barrel design, with a short residence time of only 1-3 منٽ, which is much shorter than that of ordinary twin-screw extruders (5-10 منٽ) and single-screw extruders (10-15 منٽ). The short residence time can effectively reduce the contact time between the material and high temperature, avoid thermal decomposition and hydrolytic degradation of the material, and ensure the mechanical properties and heat resistance of the product.

ان کان علاوه, the screw of the HTS series extruders adopts a modular design, and different screw elements can be freely combined according to the type of engineering plastic, which can further adjust the residence time of the material, ensuring that different types of engineering plastics can obtain the optimal residence time during processing.

3.1.3 درست درجه حرارت ڪنٽرول, Stable Performance

The HTS series extruders adopt an advanced intelligent temperature control system, which can realize precise control of the temperature of each section of the barrel and the die head. The temperature control precision can reach ±1℃, which can strictly control the processing temperature within the optimal range of engineering plastics, avoid local overheating and thermal decomposition of the material. The temperature control system is equipped with a real-time monitoring and alarm function: if the temperature of any section exceeds the set range, the system will issue an alarm prompt in time, and even automatically adjust the heating power or shut down the equipment if necessary, to avoid equipment failure and product quality problems.

ان کان علاوه, the barrel of the HTS series extruders adopts a double-layer jacket design, which can realize rapid heating and cooling, and improve the response speed of temperature control. The die head is also equipped with an independent temperature control device, which ensures the uniform temperature of the die head and the stable shaping of the product.

3.1.4 Excellent Mixing and Dispersing Effect

The HTS series extruders adopt an intermeshing co-rotating twin-screw structure, هڪ مناسب اسڪرو پچ سان, lead and compression ratio design. The intermeshing and rotating of the twin screws can generate strong shear force and kneading force, جيڪو مڪمل طور تي تبديل ڪرڻ وارن جي مجموعي کي ٽوڙي سگھي ٿو (such as glass fiber, ڪاربان فائبر, talc), make the modifiers uniformly dispersed in the engineering plastic resin matrix, ۽ ملائڻ ۽ منتشر اثر کي يقيني بڻائي. The mixing uniformity of the HTS series extruders can reach more than 95%, which is much higher than that of ordinary twin-screw extruders (85%-90%).

The screw of the HTS series extruders adopts a modular design, and different types of screw elements (such as conveying elements, mixing elements, shearing elements) can be freely combined according to the type of engineering plastic and modifier. مثال طور, when processing reinforced engineering plastics with glass fiber, more shearing elements can be configured to enhance the shearing effect and ensure the uniform dispersion of glass fiber; when processing engineering plastics with high viscosity (such as PPS), more mixing elements can be configured to improve the mixing effect and ensure the uniform viscosity of the material.

3.1.5 High Wear Resistance, Long Service Life

In the processing of reinforced engineering plastics (such as glass fiber reinforced PA, carbon fiber reinforced PPS), the added modifiers have high hardness, which will cause serious wear to the screw and barrel of the extruder. Our HTS series extruders adopt high-quality wear-resistant materials and advanced manufacturing technology to ensure the wear resistance of the core components.

The screw and barrel of the HTS series extruders are made of imported wear-resistant alloy steel (such as 38CrMoAlA), and undergo bimetallic composite treatment or laser cladding treatment. The surface hardness of the screw and barrel can reach ≥65 HRC (HTS BASIC series) and ≥70 HRC (HTS PLUS سيريز ۽ HTS SUPER سيريز), which has extremely strong wear resistance and corrosion resistance, and can effectively resist the wear caused by high-hardness modifiers. This greatly extends the service life of the screw and barrel: the service life of the screw and barrel of the HTS series extruders is 2-3 عام extruders جي ڀيٽ ۾, reducing the frequency of component replacement and the maintenance cost of the equipment.

ان کان علاوه, we also provide professional wear detection services for the screw and barrel. Our technical team will regularly detect the wear degree of the screw and barrel for customers, issue a detailed wear report, and put forward targeted replacement and maintenance suggestions, ensuring that customers only replace components when necessary, avoiding unnecessary waste.

3.1.6 Wide Application Range, Strong Flexibility

The HTS series extruders have a wide application range, which can adapt to the processing needs of various engineering plastics, including general engineering plastics (پي اي, پي سي, پوم, پي اي ٽي, پي بي ٽي) and special engineering plastics (پي پي ايس, PEEK, پي ايس يو, پي اي ايس). The extruders can also adapt to the processing of various modified engineering plastics, such as reinforced engineering plastics (glass fiber reinforced, carbon fiber reinforced), toughened engineering plastics, flame-retardant engineering plastics, antistatic engineering plastics, وغيره.

The modular design of the HTS series extruders (اسڪرو, بيرل, مرڻ سر, وغيره) makes the replacement of components more convenient and quick. When customers need to adjust the product type (such as switching from PA processing to PPS processing) or modify the formula, they only need to replace the corresponding components, without replacing the entire equipment, which reduces the cost of equipment transformation and improves the flexibility and adaptability of the equipment. ان کان علاوه, the HTS series extruders can also be matched with different auxiliary equipment (جهڙوڪ تيز رفتار ميڪر, خشڪ ڪندڙ, کولر, granulators, screening machines, packaging machines) هڪ مڪمل خودڪار پيداوار لائن ٺاهڻ لاء, realizing continuous production from raw material pretreatment to product packaging.

3.1.7 Intelligent Control, Easy Operation and Maintenance

The HTS series extruders adopt a PLC intelligent control system and a touch screen operation interface, which is simple and intuitive, easy to operate. The system can store multiple sets of product formulas and processing parameters. When customers produce different types of engineering plastics, they only need to call the corresponding formula and parameters, without repeated debugging, which saves time and improves production efficiency.

The system is also equipped with a real-time monitoring function, which can monitor the key parameters of the extrusion process (such as temperature, دٻاءُ, ڇڪڻ جي رفتار, کاڌ خوراڪ جي رفتار) in real time, and record the production data (such as output, processing time) for later query and analysis. For the HTS SUPER series extruders, we also provide a cloud control function, which can realize remote parameter adjustment, production data monitoring and predictive maintenance of equipment, سمجھدار پيداوار جي انتظام جو احساس.

ان کان علاوه, the HTS series extruders adopt a reasonable structural design, which makes the maintenance more convenient. The screw, بيرل, die head and other components can be disassembled and assembled quickly, which reduces the maintenance time and labor intensity. Our after-sales service team will provide professional installation, commissioning and training services for customers, ensuring that customers can use the equipment smoothly.

3.2 HTS Series Extruder Product Types and Their Adaptation to Engineering Plastics

In order to meet the diverse processing needs of engineering plastics enterprises of different scales and product types, we have launched three main product types in the HTS series: HTS BASIC series, HTS PLUS سيريز ۽ HTS SUPER سيريز. Each series has its own characteristics and targeted adaptation scenarios, which can be selected by customers according to their own production scale, product type, budget and other factors.

3.2.1 HTS BASIC Series Extruders: Flexible and Cost-Effective Choice for General Engineering Plastics

The HTS BASIC series extruders are a cost-effective product series designed for engineering plastics processing enterprises with medium and small production scales or initial entry into the industry. This series of extruders uses medium-torque gearboxes from leading European manufacturers, which have the advantages of stable performance, low noise, high efficiency and long service life. The medium-torque design (specific torque 10-12Nm/cm³) can meet the processing needs of most general engineering plastics (such as PA6, پي اي 66, پوم, پي اي ٽي, پي بي ٽي) and low-to-medium modified engineering plastics (such as glass fiber reinforced PA with filling amount ≤30%).

ساخت جي جوڙجڪ جي لحاظ کان, the HTS BASIC series extruders adopt a twin-screw parallel co-rotating structure, with a screw diameter ranging from 30mm to 65mm, and a compression ratio of 4～8, which can be adjusted according to the type of engineering plastic. The barrel is made of wear-resistant alloy steel with nitriding treatment, and the screw is made of wear-resistant and corrosion-resistant alloy steel, which has good wear resistance. The extruder is equipped with a PLC control system and a touch screen operation interface, which can realize automatic feeding, automatic temperature control, automatic pressure control and automatic cutting, and is simple and easy to operate.

The production capacity of the HTS BASIC series extruders ranges from 100kg/h to 500kg/h, which is suitable for medium and small-sized engineering plastics processing enterprises that mainly produce general engineering plastics and low-to-medium modified engineering plastics. One of the biggest advantages of this series is that it can provide flexible options through different configuration combinations. Customers can choose different screw elements, مرڻ سر, feeding devices, drying devices and post-processing equipment according to their own product types, production capacity and budget, so as to form a production line suitable for their own needs. The HTS BASIC series extruders have a reasonable price, which can help enterprises reduce the initial investment cost.

3.2.2 HTS PLUS Series Extruders: High-Performance Choice for Engineering Plastics and Modified Products

The HTS PLUS series extruders adopt high-torque gearboxes independently developed and manufactured by us, with a specific torque of 14Nm/cm³, which has stronger torque and load-bearing capacity than the HTS BASIC series. This series of extruders is mainly designed for the processing of high-performance engineering plastics, high-modified engineering plastics and special engineering plastics (such as PPS), which is suitable for medium and large-scale engineering plastics processing enterprises that pursue high performance and high efficiency.

The HTS PLUS series extruders have a screw diameter ranging from 65mm to 110mm, a compression ratio of 5～10, and a screw speed range of 200～800 rpm. The screw and barrel adopt bimetallic composite treatment, which has higher wear resistance and corrosion resistance (مٿاڇري جي سختي ≥65 HRC), and can adapt to the processing of reinforced engineering plastics with high filling amount (such as glass fiber reinforced PA with filling amount 30%-50%, carbon fiber reinforced PPS) and high-hardness modifiers. The extruder is equipped with an advanced intelligent temperature control system and a high-precision pressure sensor, which can realize precise control of extrusion parameters and real-time monitoring of production data, ensuring the stability of the extrusion process and the quality of the product.

The production capacity of the HTS PLUS series extruders ranges from 500kg/h to 2000kg/h, which is suitable for the large-scale production of general engineering plastics, high-modified engineering plastics and special engineering plastics (such as PPS). This series of extruders has excellent mixing and dispersing effect, short residence time and high production efficiency, which can effectively solve the processing difficulties of high-viscosity and high-modified engineering plastics, and help enterprises improve product quality and production efficiency.

3.2.3 HTS SUPER Series Extruders: Top-End Choice for High-End Engineering Plastics

The HTS SUPER series extruders adopt the latest ultra-high torque transmission device independently developed by us, with a specific torque of 14Nm/cm³ and a maximum speed of up to 1000rpm. Aiming at the high torque and high speed characteristics of this series, the structural design of each key component of the extruder has been completely optimized, which is our highest-end extruder series, representing the advanced level of China’s extruder development. This series of extruders is mainly designed for the processing of high-end special engineering plastics (جهڙوڪ PEEK, پي آءِ, پي ايس يو, پي اي ايس) and high-performance modified engineering plastics (such as carbon fiber reinforced PEEK, glass fiber reinforced PI), which is suitable for large-scale high-end engineering plastics processing enterprises that pursue high precision, high performance and intelligence.

The HTS SUPER series extruders have a screw diameter ranging from 80mm to 130mm, a compression ratio of 6～12, and a screw speed range of 250～1000 rpm. The screw and barrel adopt imported wear-resistant alloy steel and laser cladding technology, which has extremely high wear resistance and corrosion resistance (مٿاڇري جي سختي ≥70 HRC), and can adapt to the processing of special engineering plastics with high temperature resistance, high viscosity and high-hardness modifiers. The extruder is equipped with an intelligent PLC + cloud touch screen control system, which can realize remote parameter adjustment, پيداوار جي ڊيٽا جي نگراني, predictive maintenance of equipment and data analysis, سمجھدار پيداوار جي انتظام جو احساس.

The production capacity of the HTS SUPER series extruders ranges from 1000kg/h to 3000kg/h, which is suitable for the large-scale production of high-end special engineering plastics and high-performance modified engineering plastics. This series of extruders has the advantages of high precision, strong customization, multi-function and stable performance, which can meet the most stringent processing requirements of high-end engineering plastics. The short residence time (1-2 منٽ) and precise temperature control can effectively avoid the thermal decomposition of special engineering plastics, ensuring the excellent performance of the product. ان کان علاوه, the HTS SUPER series extruders can also be customized according to the special processing needs of customers, providing personalized solutions.

3.3 Selection Suggestions for Engineering Plastics Extruders

When selecting twin-screw extruders for engineering plastics processing, enterprises need to comprehensively consider their own production needs, product types, processing scale, budget and other factors to ensure that the selected equipment can meet the actual processing needs and bring maximum economic benefits. The following are some specific selection suggestions:

3.3.1 Determine the Extruder Series According to the Type of Engineering Plastics

Different types of engineering plastics have different processing requirements, which determine the selection of extruder series. For general engineering plastics (PA6, پي اي 66, پوم, پي اي ٽي, پي بي ٽي) with low modification degree (filling amount ≤30%), the HTS BASIC series is sufficient to meet the processing needs. Its medium torque and flexible configuration can balance processing effect and cost, which is very suitable for small and medium-sized enterprises that just start to engage in engineering plastics processing or focus on general-purpose products. For high-modified engineering plastics (filling amount 30%-50%, such as glass fiber reinforced PA, carbon fiber reinforced PBT) and special engineering plastics with moderate processing difficulty (such as PPS), the HTS PLUS series is the preferred choice. Its high torque of 14Nm/cm³ and excellent mixing and dispersing capacity can effectively solve the problem of uneven dispersion of high-content modifiers, and its wear-resistant screw and barrel can adapt to the wear of hard modifiers, ensuring stable production. For high-end special engineering plastics (PEEK, پي آءِ, پي ايس يو, پي اي ايس) and high-performance modified engineering plastics (filling amount ≥50%, such as carbon fiber reinforced PEEK), the HTS SUPER series must be selected. Its ultra-high torque, maximum 1000rpm speed and fully optimized key structure can cope with the high viscosity, high temperature resistance and strict processing requirements of high-end materials, avoid thermal decomposition and material degradation, and ensure the high performance of the final product.

3.3.2 Determine the Screw Diameter and Production Capacity According to the Processing Scale

The screw diameter of the twin-screw extruder directly determines the production capacity, and enterprises need to select the appropriate screw diameter according to their own production scale and order demand. For small-scale production (100ڪلوگرام / ايڇ – 500ڪلوگرام / ايڇ), such as small-batch customization, product research and development or small orders, the HTS BASIC series with screw diameter of 30mm – 65mm is suitable; for medium-scale production (500ڪلوگرام / ايڇ – 2000ڪلوگرام / ايڇ), such as mass production of general modified engineering plastics, the HTS PLUS series with screw diameter of 65mm – 110mm can meet the demand; for large-scale production (1000ڪلوگرام / ايڇ – 3000ڪلوگرام / ايڇ), such as large-scale production of high-end special engineering plastics or large orders from downstream enterprises, the HTS SUPER series with screw diameter of 80mm – 130mm is the best choice. It should be noted that when selecting, enterprises should not blindly pursue large production capacity. They should also consider the fluctuation of order quantity. If the order quantity is unstable, they can choose equipment with adjustable speed and flexible production capacity (such as HTS BASIC series with frequency conversion speed regulation function) to avoid waste of equipment resources and energy.

3.3.3 Consider the Modification Demand and Mixing Effect

If the enterprise’s main products are modified engineering plastics, the mixing and dispersing effect of the extruder is the key factor to be considered. For products that need to add a variety of modifiers (such as flame retardants, compatibilizers, reinforcing agents) ساڳئي وقت ۾, it is necessary to select extruders with excellent mixing performance, جهڙوڪ HTS PLUS سيريز ۽ HTS SUPER سيريز ماڊلر ميڪنگ اسڪرو عناصر سان. اهي ٻه سيريز آزاديء سان پهچائڻ واري عناصر کي گڏ ڪري سگهن ٿا, ملائيندڙ عناصر ۽ ڍنگ عناصر کي تبديل ڪرڻ واري قسم جي مطابق, ملائڻ جي شدت ۽ رهائش جو وقت ترتيب ڏيو, ۽ انهي کي يقيني بڻايو وڃي ته مختلف ترميمن کي رين ميٽرڪس ۾ هڪجهڙائي سان منتشر ڪيو ويو آهي. مثال طور, جڏهن پروسيسنگ شعلا-retardant تبديل ٿيل PBT, وڌيڪ ملائڻ واري عناصر کي ترتيب ڏئي سگهجي ٿو ته شعلہ retardants جي يونيفارم ڦهلائڻ کي يقيني بڻائي سگهجي, مقامي شعله ريٽارنسي جي گهٽتائي کان بچڻ; جڏهن پروسيسنگ گلاس فائبر مضبوط ٿيل PA, شيشي فائبر جي مجموعي کي ٽوڙڻ ۽ گلاس فائبر ۽ رال جي وچ ۾ بانڊنگ فورس کي بهتر ڪرڻ لاءِ وڌيڪ ڪٽڻ وارا عنصر ترتيب ڏئي سگهجن ٿا.. ان کان علاوه, جيڪڏهن انٽرپرائز کي گھڻن قسمن ۽ ننڍي بيچ جي ترميم جي گهرج آهي, it is recommended to select the extruder with quick replacement of screw elements (such as the modular screw design of HTS series), which can reduce the time of equipment adjustment and improve production efficiency.

3.3.4 Consider the Cost Budget and Comprehensive Benefits

Cost budget is an important factor for enterprises to select equipment, but it is not advisable to pursue low cost blindly. It is necessary to balance the initial purchase cost, later maintenance cost, energy consumption and production efficiency to maximize the comprehensive benefits. The HTS BASIC series has the lowest initial purchase cost, low energy consumption and simple maintenance, which is suitable for enterprises with limited budget and small production scale; the HTS PLUS series has a moderate initial purchase cost, but its high production efficiency, long service life and stable processing effect can reduce the later maintenance cost and improve product qualification rate, which is suitable for medium and large-sized enterprises with certain budget and pursuit of high performance; the HTS SUPER series has the highest initial purchase cost, but it can process high-end products with high added value, and its intelligent control and long service life can reduce labor cost and maintenance cost in the later period, which is suitable for large-scale enterprises with sufficient budget and focus on high-end market. ان کان علاوه, enterprises should also consider the after-sales service of the equipment. Our HTS series extruders provide a complete after-sales service system, تنصيب سميت, ڪميشن ڪرڻ, technical training, regular maintenance and quick replacement of spare parts, which can reduce the later operation risk of enterprises.

3.3.5 Consider the Compatibility with Auxiliary Equipment

Twin-screw extrusion processing of engineering plastics needs to be matched with a series of auxiliary equipment, such as raw material drying equipment, high-speed mixer, cooler, granulator, screening machine, packaging machine, وغيره. When selecting the extruder, enterprises need to consider the compatibility between the extruder and auxiliary equipment to ensure the smooth operation of the entire production line. Our HTS series extruders can be perfectly matched with various standard auxiliary equipment, and can also be customized according to the enterprise’s existing auxiliary equipment to avoid the waste caused by the incompatibility between new equipment and old auxiliary equipment. مثال طور, if the enterprise already has a high-speed mixer with a mixing capacity of 500kg, it can select the HTS PLUS series extruder with a production capacity of 500kg/h – 800kg/h to match it, ensuring the coordination of raw material premixing and extrusion production.

4. Application Fields of Engineering Plastics and Matching HTS Series Extruder Solutions

انجنيئرنگ پلاسٽڪ, with their excellent comprehensive performance, have been widely used in automotive, برقي ۽ اليڪٽرانڪ, طبي, فضائي خلا, ڪيميائي, construction and other fields. Different application fields have different requirements on the performance of engineering plastic products, which also puts forward different requirements on extrusion processing equipment. Below, we will elaborate on the application characteristics of engineering plastics in major fields and the matching HTS series extruder solutions, providing targeted reference for enterprises in different fields.

4.1 Automotive Field: Lightweight, High Temperature Resistance and Wear Resistance

With the development of automotive lightweight and energy-saving and emission-reduction, engineering plastics have become an important material for automotive parts, gradually replacing traditional metal materials. The engineering plastics used in the automotive field mainly include PA, پوم, پي سي, پي بي ٽي, پي پي ايس, وغيره, which are mainly used in engine parts, interior parts, exterior parts and electrical components. The core requirements for extrusion processing are: lightweight, high temperature resistance, مزاحمت پائڻ, dimensional stability and low VOC (volatile organic compounds), which require the extruder to have precise temperature control, excellent mixing and dispersing effect and stable production capacity.

For automotive interior parts (such as instrument panels, دروازو پينل, air ducts) made of general engineering plastics (PA6, پوم, PC/ABS alloy), the HTS BASIC series extruders can meet the processing needs. Its flexible configuration can adjust the processing parameters according to the performance requirements of interior parts, ensure the smooth surface and dimensional stability of the product, and its low energy consumption and cost can reduce the production cost of automotive parts. For automotive engine parts (such as intake manifolds, cylinder head covers, oil pans) made of high-temperature resistant and wear-resistant engineering plastics (PA66+GF30, پي پي ايس), the HTS PLUS series extruders are more suitable. Its high torque and excellent mixing and dispersing effect can ensure the uniform dispersion of glass fiber, improve the strength and high temperature resistance of the product, and its wear-resistant screw and barrel can adapt to the wear of glass fiber, ensuring long-term stable production. For high-end new energy vehicle parts (such as battery shell, motor insulation parts) made of high-end special engineering plastics (PEEK, پي آءِ), the HTS SUPER series extruders are required. Its ultra-high torque, precise temperature control and short residence time can avoid thermal decomposition of high-temperature resistant materials, ensure the insulation performance and corrosion resistance of the product, and meet the strict requirements of new energy vehicles on parts performance.

ڪيس اسٽڊي: A large automotive parts manufacturer specializing in new energy vehicle battery parts selected our HTS SUPER series extruders (screw diameter 100mm) to process carbon fiber reinforced PEEK battery shells. The PEEK material has high viscosity and high temperature resistance, and the carbon fiber filling amount reaches 40%, which has extremely high requirements on extrusion equipment. The HTS SUPER series extruders, with their ultra-high torque of 14Nm/cm³ and maximum speed of 1000rpm, generate strong shear force and mixing force, which makes the carbon fiber uniformly dispersed in the PEEK matrix; the precise temperature control system (precision ±1℃) strictly controls the processing temperature at 380-400℃, avoiding thermal decomposition of PEEK; the short residence time (1.5 منٽ) effectively reduces the material degradation, ensuring the strength and insulation performance of the battery shell. After using the HTS SUPER series extruders, the production efficiency of the enterprise is increased by 40%, the product qualification rate is increased from 88% جي طرف 99%, and the production cost is reduced by 15%, which has won high recognition from the enterprise.

4.2 Electrical and Electronic Field: Electrical Insulation, Flame Retardancy and Dimensional Stability

The electrical and electronic field is one of the earliest and most widely used fields of engineering plastics. Engineering plastics are mainly used in electrical connectors, وائرنگ بورڊ, رلي, motors, ڪيبل لاڳاپا, lamp covers and other components. The core requirements for extrusion processing are: excellent electrical insulation, شعاع جي مزاحمت, dimensional stability, corrosion resistance and low toxicity, which require the extruder to have precise temperature control, good mixing and dispersing effect and strict quality control capacity.

For general electrical components (such as cable ties, ڳنڍيندڙ) made of general engineering plastics (PA6, پي بي ٽي, پي سي), the HTS BASIC series extruders are suitable. Its flexible configuration can match different die heads to produce components of different shapes and sizes; the precise temperature control ensures the electrical insulation performance of the product, and the low cost can meet the mass production needs of general electrical components. For high-precision electrical components (such as relays, motor windings) made of flame-retardant modified engineering plastics (PBT+GF30+flame retardant, PA66+flame retardant), the HTS PLUS series extruders are preferred. Its high mixing and dispersing effect can ensure the uniform dispersion of flame retardants, مقامي شعله ريٽارنسي جي گهٽتائي کان بچڻ, and meet the UL94 V-0 flame retardant standard; the precise dimensional control can ensure the dimensional accuracy of high-precision components, avoiding assembly failure. For high-end electrical components (such as high-temperature resistant connectors, aerospace electrical components) made of special engineering plastics (پي پي ايس, پي ايس يو, پي اي ايس), the HTS SUPER series extruders are required. Its ultra-high torque and excellent wear resistance can cope with the high viscosity and high hardness of special engineering plastics, and the precise temperature control and short residence time can ensure the electrical insulation performance and high temperature resistance of the product, meeting the strict requirements of high-end electrical and electronic products.

4.3 Medical Field: Biocompatibility, Sterility and Precision

The medical field has extremely strict requirements on materials, and engineering plastics used in the medical field must have good biocompatibility, sterility, corrosion resistance and dimensional stability, and must not produce toxic and harmful substances. The main engineering plastics used in the medical field include PC, پي اي, PEEK, پي ايس يو, وغيره, which are mainly used in medical containers, medical catheters, طبي امپلانٽس, surgical instruments and other products. The core requirements for extrusion processing are: high precision, no pollution, stable performance, which require the extruder to have high cleanliness, precise temperature control and strict quality control capacity.

For general medical products (such as medical containers, ordinary catheters) made of medical-grade general engineering plastics (medical-grade PC, medical-grade PA), the HTS BASIC series extruders with special cleanliness configuration can meet the requirements. We can customize the screw and barrel with high cleanliness, no dead angle design for the HTS BASIC series, avoid material residue and pollution, and match the sterile feeding and packaging system to ensure the sterility of the product. For high-precision medical products (such as precision catheters, طبي امپلانٽس) made of medical-grade special engineering plastics (medical-grade PEEK, medical-grade PSU), the HTS SUPER series extruders with high-precision configuration are required. Its fully optimized screw structure and precise temperature control can ensure the dimensional accuracy of the product (tolerance ≤±0.01mm), and the clean production environment and no pollution design can meet the biocompatibility requirements of medical products; the cloud control function can realize real-time monitoring and recording of the production process, which is convenient for medical product traceability and meets the GMP (Good Manufacturing Practice) requirements of the medical field.

4.4 Aerospace Field: High Temperature Resistance, Low Weight and High Strength

The aerospace field has extremely high requirements on the performance of materials, and engineering plastics used in the aerospace field must have excellent high temperature resistance, low weight, high strength, corrosion resistance and radiation resistance. The main engineering plastics used in the aerospace field include PEEK, پي آءِ, پي ايس يو, پي اي ايس, وغيره, which are mainly used in aerospace components, aircraft interior parts, satellite components and other products. The core requirements for extrusion processing are: ultra-high precision, ultra-high temperature resistance, stable performance, which require the extruder to have the highest level of torque, speed and temperature control capacity.

Due to the extremely strict processing requirements of aerospace-grade engineering plastics, only the HTS SUPER series extruders can meet the demand. Its ultra-high torque transmission device, maximum 1000rpm speed and fully optimized key components can cope with the high viscosity and high temperature resistance of aerospace-grade materials (long-term use temperature up to 300℃); the laser-clad screw and barrel have extremely high wear resistance and corrosion resistance, which can adapt to the processing of high-hardness modifiers (such as carbon fiber, ceramic fiber); the intelligent PLC + cloud touch screen control system can realize precise control of extrusion parameters, and the remote monitoring and predictive maintenance function can ensure the stable operation of equipment in long-term continuous production; the customizable configuration can meet the special processing needs of various aerospace components, ensuring the high performance and high reliability of the product.

4.5 Chemical Field: Corrosion Resistance and Wear Resistance

The chemical field has harsh working environment, and engineering plastics used in the chemical field must have excellent corrosion resistance, مزاحمت پائڻ, high temperature resistance and pressure resistance. The main engineering plastics used in the chemical field include PPS, PEEK, PVDF (polyvinylidene fluoride), وغيره, which are mainly used in chemical equipment, pipelines, valves, pumps and other products. The core requirements for extrusion processing are: corrosion مزاحمت, مزاحمت پائڻ, stable performance, which require the extruder to have excellent wear resistance and corrosion resistance, and stable pressure control capacity.

For chemical pipelines and valves made of general corrosion-resistant engineering plastics (پي پي ايس, PVDF), the HTS PLUS series extruders are suitable. Its bimetallic composite screw and barrel have excellent corrosion resistance and wear resistance, which can adapt to the corrosion of chemical media and the wear of materials; the stable pressure control capacity can ensure the uniform wall thickness of pipelines and valves, avoiding leakage caused by uneven wall thickness. For high-pressure chemical equipment and corrosion-resistant components made of high-end corrosion-resistant engineering plastics (PEEK, پي آءِ), the HTS SUPER series extruders are required. Its ultra-high torque and stable conveying capacity can cope with the high viscosity of high-end corrosion-resistant materials, and the laser-clad screw and barrel have extremely high corrosion resistance and wear resistance, which can meet the long-term use requirements in harsh chemical environments; the precise temperature control can avoid thermal decomposition of materials, ensuring the corrosion resistance and pressure resistance of the product.

5. Common Problems and Solutions in Engineering Plastics Twin-Screw Extrusion Processing

In the actual twin-screw extrusion processing of engineering plastics, due to the influence of raw materials, processing parameters, equipment performance and other factors, مختلف مسئلا اڪثر ڪري رهيا آهن, which affect the product quality and production efficiency. Below, we will summarize the common problems in engineering plastics extrusion processing, analyze their causes, and provide corresponding solutions combined with the characteristics of our HTS series extruders, helping enterprises solve practical processing problems and improve production efficiency.

5.1 مسئلو 1: Thermal Decomposition and Discoloration of Materials

Symptoms: During the extrusion process, the material appears yellowing, blackening, carbonization and other phenomena, and the final product has discoloration, bubbles, cracks and other defects, and the mechanical properties are significantly reduced. This problem is mainly caused by the sensitivity of engineering plastics to overheating and hydrolytic degradation.

سبب: 1. The extrusion temperature is too high or the temperature of a certain section of the barrel is too high, resulting in thermal decomposition of the material; 2. The residence time of the material in the extruder is too long, leading to excessive heating and decomposition; 3. The raw materials are not dried thoroughly, and the moisture in the materials causes hydrolytic degradation during high-temperature processing; 4. The screw speed is too low, resulting in insufficient shear force and prolonged residence time; 5. The flow channel of the die head is blocked, resulting in material accumulation and local overheating.

حل: 1. Adjust the extrusion temperature according to the type of engineering plastic, strictly control the temperature of each section of the barrel and die head within the optimal range, and use the precise temperature control function of the HTS series extruders (گرمي پد ڪنٽرول سڌائي ±1℃) to avoid local overheating; 2. Increase the screw speed appropriately (within the range suitable for the material) to shorten the residence time of the material. The HTS series extruders can reach a maximum speed of 1000rpm, which can effectively shorten the residence time to 1-3 منٽ; 3. Strengthen the drying treatment of raw materials, strictly control the moisture content below 0.1%-0.2%, and use the drying device matched with the HTS series extruders to prevent the raw materials from absorbing moisture again during feeding; 4. Check and clean the die head regularly to ensure the smooth flow channel, avoid material accumulation; 5. If the problem persists, adjust the screw element combination, increase the number of conveying elements, and reduce the number of mixing elements to speed up the material conveying and shorten the residence time.

5.2 مسئلو 2: Uneven Dispersion of Modifiers

Symptoms: The final product has uneven texture, obvious agglomeration of modifiers (such as glass fiber, ڪاربان فائبر), and the mechanical properties (طاقت, سختي, مزاحمت پائڻ) are uneven, which cannot meet the use requirements. This problem is common in the processing of modified engineering plastics.

سبب: 1. The premixing effect of raw materials is poor, and the modifiers are not uniformly adhered to the surface of the resin; 2. The screw speed is too low, resulting in insufficient shear force and kneading force, and the modifiers cannot be fully broken and dispersed; 3. The combination of screw elements is unreasonable, and the number of mixing elements and shearing elements is insufficient; 4. The extrusion temperature is too low, the material is not fully melted, and the modifiers cannot be uniformly dispersed in the resin matrix; 5. The particle size of the modifier is too large or uneven.

حل: 1. Optimize the premixing process, increase the mixing speed (800-1200آر پي ايم) and mixing time (5-10 منٽ), add an appropriate amount of compatibilizer to improve the compatibility between the modifier and the resin, and use a high-speed mixer matched with the HTS series extruders to ensure uniform premixing; 2. Increase the screw speed appropriately, use the high-speed performance of the HTS series extruders to generate strong shear force and kneading force, and fully break the agglomerates of modifiers; 3. Adjust the combination of screw elements, increase the number of mixing elements and shearing elements, and use the modular screw design of the HTS series extruders to customize the optimal screw combination according to the type of modifier; 4. Properly increase the extrusion temperature to ensure that the material is fully melted, which is conducive to the uniform dispersion of modifiers; 5. Crush and sieve the modifier to ensure that its particle size is uniform (20-40 ميش) and meets the processing requirements.

5.3 مسئلو 3: Wear of Screw and Barrel

Symptoms: After a period of use, the extrusion capacity of the extruder decreases, the shear force and mixing effect are reduced, the product quality is unstable, and even the screw and barrel are stuck. This problem is mainly caused by the wear of high-hardness modifiers (such as glass fiber, ڪاربان فائبر) مضبوط انجنيئرنگ پلاسٽڪ جي پروسيسنگ دوران سکرو ۽ بيرل تي.

سبب: 1. سکرو ۽ بيرل غريب لباس مزاحمت سان مواد مان ٺهيل آهن, جيڪو اعلي سختي واري تبديليءَ جي لباس جي مزاحمت نٿو ڪري سگهي; 2. تبديل ڪندڙ جي ڀرڻ جي مقدار تمام گهڻي آهي (≥50%), ۽ لباس تيز ٿي ويو آهي; 3. تبديل ڪندڙ جي ذري جي سائيز تمام وڏي آهي, جيڪو سکرو ۽ بيرل تي لباس وڌائي ٿو; 4. extrusion دٻاء تمام بلند آهي, جيڪو مواد ۽ اسڪرو ۽ بيرل جي وچ ۾ رگڙ وڌائي ٿو; 5. اسڪرو ۽ بيرل باقاعده برقرار نه آهن, ۽ مادي رهجي ويل لباس کي تيز ڪري ٿو.

حل: 1. اعلي لباس مزاحمت سان extruders چونڊيو, جيئن ته HTS PLUS سيريز ۽ HTS SUPER سيريز. Their screws and barrels are made of imported wear-resistant alloy steel and undergo bimetallic composite treatment or laser cladding treatment, with surface hardness ≥65 HRC (HTS PLUS) and ≥70 HRC (HTS SUPER), which can effectively resist the wear of high-hardness modifiers; 2. Control the filling amount of the modifier within a reasonable range. If high filling amount is required, select the HTS SUPER series extruders with better wear resistance; 3. Crush and sieve the modifier to reduce its particle size and reduce wear; 4. Adjust the extrusion parameters to control the extrusion pressure within the optimal range (5-15ايم پي اي), avoid excessive pressure; 5. Regularly maintain the screw and barrel, clean the material residue in time, and apply lubricating oil appropriately to reduce friction and extend the service life. ان کان علاوه, our professional technical team can provide regular wear detection services for the screw and barrel, and put forward targeted replacement and maintenance suggestions.

5.4 مسئلو 4: Unstable Product Size and Dimensional Deformation

Symptoms: The size of the extruded product (such as granules, پائپ, چادر) is uneven, the shrinkage rate exceeds the standard (＞1.5%), and the product has deformation, warpage and other phenomena, which affects the assembly and use of the product.

سبب: 1. The extrusion temperature is unstable, resulting in uneven melting and plasticization of the material, and uneven shrinkage during cooling; 2. The extrusion speed is unstable, leading to uneven extrusion amount and unstable product size; 3. The cooling speed is uneven, resulting in uneven internal and external stress of the product, leading to deformation; 4. The die head structure is unreasonable, the flow channel is not smooth, and the material flow is uneven; 5. The raw materials have high water absorption, and the moisture causes uneven shrinkage during processing.

حل: 1. Use the precise temperature control system of the HTS series extruders to ensure the stability of the extrusion temperature, and avoid temperature fluctuation; 2. Adjust the feeding speed and screw speed to ensure the stability of the extrusion speed, and use the frequency conversion speed regulation function of the HTS series extruders to realize the synchronous adjustment of feeding and extrusion; 3. Optimize the cooling process, ensure uniform cooling speed, adjust the cooling water temperature (20-30℃) and cooling time (2-5 منٽ) for strip cooling, and use air cooling or water spray cooling for pipes and sheets to avoid uneven cooling; 4. Check and optimize the die head structure, ensure the smooth flow channel, ۽ يونيفارم مادي وهڪري کي يقيني بڻائڻ لاءِ مرڻ واري سر جي درجه حرارت کي ترتيب ڏيو; 5. Strengthen the drying treatment of raw materials, سختي سان نمي جي مواد کي ڪنٽرول ڪرڻ, ۽ پيداوار جي ڇڪڻ تي نمي جي اثر کي گھٽائڻ.

5.5 مسئلو 5: گھٽ Extrusion ڪارڪردگي ۽ اعلي توانائي واپرائڻ

Symptoms: extruder جي پيداوار جي گنجائش جوڙجڪ معيار کان گهٽ آهي, توانائي واپرائڻ في يونٽ پيداوار اعلي آهي, ۽ پيداوار جي قيمت وڌي وئي آهي, جيڪو ڪمپني جي اقتصادي فائدن کي متاثر ڪري ٿو.

سبب: 1. The screw speed is too low, پهچائڻ جي گنجائش ڪافي نه آهي; 2. The extrusion temperature is too low, مواد جي viscosity تمام اعلي آهي, پهچائڻ جي مزاحمت وڌي وئي آهي, ۽ پيداوار جي گنجائش گھٽجي وئي آهي; 3. The combination of screw elements is unreasonable, پهچائڻ جي ڪارڪردگي گهٽ آهي; 4. فيڊنگ ڊيوائس بند ٿيل آهي يا کاڌ خوراڪ جي رفتار ڪافي نه آهي, نتيجي ۾ ناکافي کاڌ خوراڪ; 5. سکرو ۽ بيرل ڪپڙا آهن, پهچائڻ جي گنجائش گھٽجي وئي آهي, ۽ توانائي جو استعمال وڌايو ويو آهي.

حل: 1. Increase the screw speed appropriately (within the range suitable for the material) to improve the conveying capacity and production efficiency. The HTS series extruders can reach a maximum speed of 1000rpm, which can significantly improve production efficiency; 2. Properly increase the extrusion temperature to reduce the material viscosity, reduce the conveying resistance, and improve the conveying efficiency; 3. Adjust the combination of screw elements, increase the number of conveying elements, optimize the screw lead and compression ratio, and improve the conveying efficiency. The modular screw design of the HTS series extruders can realize the quick adjustment of screw elements; 4. Check and clean the feeding device regularly, ensure the smooth feeding, and adjust the feeding speed to match the screw speed, avoid insufficient feeding; 5. Regularly detect the wear degree of the screw and barrel, replace the worn components in time, and maintain the conveying capacity of the extruder, reducing energy consumption. ان کان علاوه, the HTS series extruders adopt an optimized structural design and high-efficiency motor, which can reduce energy consumption by 15%-20% compared with ordinary extruders.

6. Conclusion and Future Development Trend

انجنيئرنگ پلاسٽڪ, هڪ اهم اعلي ڪارڪردگي مواد جي طور تي, are playing an increasingly important role in global industrial upgrading, and twin-screw extrusion technology is the core support for the high-quality processing of engineering plastics. The performance of extrusion equipment directly determines the quality, پيداوار جي ڪارڪردگي ۽ انجنيئرنگ پلاسٽڪ جي شين جي درخواست جو اثر. Our HTS series twin-screw extruders, including HTS BASIC, HTS PLUS and HTS SUPER, are specially designed for the processing characteristics of engineering plastics (sensitivity to overheating and hydrolytic degradation, high requirements on mixing and dispersing effect, اعلي viscosity), with the advantages of high torque, تيز رفتار, صحيح درجه حرارت ڪنٽرول, excellent wear resistance, wide application range and intelligent control. They can provide targeted processing solutions for different types of engineering plastics and different scales of enterprises, helping enterprises solve processing difficulties, improve product quality and production efficiency, and enhance market competitiveness.

Looking forward to the future, with the continuous upgrading of downstream industries such as automotive lightweight, برقي ۽ اليڪٽرانڪ انٽيليجنس, new energy and medical high-endization, the demand for high-performance, functional and environmentally friendly engineering plastics will continue to grow, which will also put forward higher requirements on twin-screw extrusion technology and equipment. The future development trend of engineering plastics twin-screw extruders will be mainly reflected in four aspects:

پهريون, intelligence and digitalization. With the development of Industry 4.0, twin-screw extruders will be more integrated with intelligent technologies such as Internet of Things, big data and artificial intelligence. The HTS series extruders will further optimize the cloud control function, realize real-time monitoring, data analysis, predictive maintenance and intelligent adjustment of the entire production process, reduce labor intervention, and improve production efficiency and product consistency. ساڳئي وقت ۾, digital simulation technology will be widely used in the design and debugging of extruders, reducing the research and development cycle and debugging time of equipment.

ٻيون, high performance and high efficiency. The demand for high-end engineering plastics (جهڙوڪ PEEK, پي آءِ) will continue to increase, which will promote the continuous upgrading of extruder performance. The future extruders will have higher torque, higher speed and more precise temperature control capacity, and the key components (اسڪرو, بيرل, gearbox) will be further optimized to improve wear resistance, corrosion resistance and service life. ساڳئي وقت ۾, the energy consumption of the equipment will be further reduced, realizing high-efficiency and energy-saving production.

ٽيون, customization and diversification. Different application fields and different products have increasingly personalized requirements for extrusion processing. The future extruders will adopt a more flexible modular design, which can quickly replace screw elements, die heads and other components according to customer needs, realizing the processing of multiple varieties and small batches. ساڳئي وقت ۾, we will provide more personalized customized solutions according to the special processing needs of customers, meeting the diverse market demands.

چوٿون, environmental protection and greenization. With the strengthening of global environmental protection policies, environmental protection will become an important development direction of extrusion equipment. مستقبل جي extruders وڌيڪ ماحول دوست مواد ۽ پيداوار جي عمل کي اپنائڻ ڪندو, توانائي جي استعمال ۽ آلودگي جي اخراج کي گھٽائڻ; ساڳئي وقت ۾, اهي ريسائيڪلبل انجنيئرنگ پلاسٽڪ ۽ بايوڊيگريڊبل انجنيئرنگ پلاسٽڪ سان وڌيڪ مطابقت رکندا, انجنيئرنگ پلاسٽڪ انڊسٽري جي سائي ترقي کي فروغ ڏيڻ.

اسان هميشه ٽيڪنالاجي جدت جي تصور تي عمل ڪنداسين, انجنيئرنگ پلاسٽڪ انڊسٽري جي ترقي جي ضرورتن تي ڌيان ڏيڻ, مسلسل تحقيق ۽ ترقي ۾ سيڙپڪاري, HTS سيريز extruders جي ڪارڪردگي کي بهتر, بعد ۾ سيلز سروس بهتر ڪريو, ۽ وڌيڪ پروفيشنل مهيا ڪريو, گلوبل انجنيئرنگ پلاسٽڪ پروسيسنگ انٽرپرائزز لاء موثر ۽ ذھني ٽوئن-سڪرو extrusion حل, انجنيئرنگ پلاسٽڪ انڊسٽري جي اعلي معيار جي ترقي ۾ مدد ڪندي.