Screw Component

Likarolo tsa Extruder Screw: Precision E Enjineriloe Bakeng sa ho Hanela Wear, Tšireletso ea Corrosion & Tshebetso e nepahetseng

Ka 22 lilemo tsa boitseanape bo khethehileng ho moralo oa karolo ea screw ea extruder, mahlale a lintho tse bonahalang, le lisebelisoa tsa extrusion tsa indasteri, Ke ile ka sebelisana le 450+ baetsi ho pholletsa le polasetiki, khemikhale, le liindasteri tsa ho lokisa lijo ho ntlafatsa ts'ebetso ea screw-ho fokotsa nako ea ho sebetsa ka 40% le ho lelefatsa bophelo ba ts'ebeletso ea screw ka 2-3x bakeng sa lits'ebetso tse apereng haholo. Karolo ea screw ke pelo ea sistimi efe kapa efe ea extruder, e amang ka kotloloho ts'ebetso ea ts'ebetso ea thepa, boleng ba sehlahisoa, le litšenyehelo tsa ts'ebetso. Likarolo tsa screw tsa Excellence li entsoe ka ho tsepamisa maikutlo ho saense ea lintho tse bonahalang, ho nepahala ha geometri, le moralo o ikhethileng oa ts'ebeliso, ho li etsa maemo a khauta bakeng sa lits'ebetso tsa extrusion ho tloha ho motsoako o tloaelehileng oa polasetiki ho isa ho ts'ebetso ea lik'hemik'hale tse senyang le tlhahiso ea lijo e phahameng haholo..

Screw Components: Moqapi oa Motheo & Melemo ea Ts'ebetso

The screw component ke karolo ea bohlokoa ea extruder. Ho hanyetsa ho roala le ho hanyetsa kutu ke matšoao a bohlokoa a bophelo ba tšebeletso ea eona. Bokhabane bo fana ka lisebelisoa tse fapaneng ho lumellana le maemo a fapaneng a ts'ebetso le menahano ea moruo. Litsamaisong tsa extrusion, screw wear and corrosion account for 60% ea nako e sa reroang le 30% ea litšenyehelo tsa tlhokomelo-ho etsa khetho ea thepa le ho nepahala ha moralo ho ke keng ha buisanoa bakeng sa tlhahiso e bolokang chelete e ngata. Likarolo tsa screw tsa Excellence li rarolla mathata ana ka ho kopanya lisebelisoa tsa premium, geometry e ntlafalitsoeng, le boenjiniere ba tloaelo, ho netefatsa bophelo bo bolelele ba ts'ebeletso esita le maemong a thata ka ho fetesisa a ts'ebetso (mohlala, dipolasetiki tse tletseng, lik'hemik'hale tse senyang, lipolima tse phahameng tsa mocheso).

Karolo e tloaelehileng ea screw ea Excellence e na le tekanyo ea botebo ba groove (D0/Lap) ea 1.55, e leng boleng bo nepahetseng ho nahanoa ka torque, molumo oa mahala, lebelo, le liphello tsa ho hasana le ho kopanya. Karolelano ea botebo ba groove (e hlalosoang joalo ka karo-karolelano ea bophara ba screw screw (D0) ho isa bophara ba metso e ka hare (Ho tloha)) ke parameter ea bohlokoa ea geometri e lekanyang lintlha tse 'ne tsa bohlokoa tsa ts'ebetso ea extrusion:

• Bokhoni ba Torque: A 1.55 karo-karolelano maximize torque phetiso ho tloha tsamaiso extruder drive ho lintho tse bonahalang, ho thibela ho ema ha screw esita le ka thepa e phahameng ea viscosity (mohlala, metsoako ea PVC e tletseng, lipolasetiki tsa boenjiniere joalo ka PEEK).
• Molumo oa Mahala: The 1.55 karo-karolelano e fana ka e lekaneng mahala bophahamo ba modumo bakeng sa ho qhibiliha ha lintho tse bonahalang le degassing, ho fokotsa kotsi ea ho chesa le ho senyeha ha thepa e sa utloeng mocheso (mohlala, TPU ea boemo ba bongaka, LDPE).
• Lebelo la Potoloho: E ntlafalitsoe bakeng sa extrusion ea lebelo le holimo (ho fihlela 1200 rpm) ntle le ho sekisetsa botšepehi ba sebopeho-e bohlokoa bakeng sa mela e phahameng ea tlhahiso (mohlala, phaephe/profile extrusion).
• Phasano & Ho Kopanya Liphello: E netefatsa kabo e tšoanang ea li-additives (masterbatches, fillers, stabilizers) boemong ba karoloana, ho tlosa streaking, agglomeration, kapa thepa ea mechine e sa tsitsang lihlahisoa tse felileng.

Bakeng sa lisebelisoa tse fapaneng, Bokhabane bo ka boela ba khetha ka bolokolohi tekanyo ea botebo ba groove (D0/Lap) ho tloha 1.4 ho 1.8, ho lumella tokiso e nepahetseng ea ts'ebetso ea screw ho lumellana le litlhoko tse khethehileng tsa thepa le tlhahiso:

• 1.4 Karolelano: Bakeng sa lisebelisoa tse phahameng tsa torque (mohlala, metsoako e tletseng haholo ka 60% calcium carbonate / talc filler) - e etelletsa pele matla a sebopeho ho feta molumo oa mahala.
• 1.6-1.8 Karolelano: Bakeng sa lisebelisoa tse tlaase tsa viscosity (mohlala, filimi-grade PE/PP, li-polymers tse thehiloeng ho solvent) - e eketsa molumo oa mahala bakeng sa ho qhibiliha / degassing le ho fokotsa mocheso oa ho kuta.

Ka lebaka la litlhoko tse khethehileng tsa lisebelisoa tse ling mabapi le ho hasana, ho kopanya, ho kuta, le ho futhumatsa ka hare, Bokhabane bo boetse bo hlophisa likarolo tsa screw ka meaho e ikhethileng bakeng sa lits'ebetso tse fapaneng, ka hona ho fokotsa ho futhumatsa ka hare ntle le ho senya ho hasana, ho kopanya, le litlamorao tsa ho kuta. Ho futhumatsa ka hare (e bakoang ke ho kuta hofeta tekanyo pakeng tsa sekurufu le thepa) ke sesosa se seholo sa ho senyeha ha thepa ho li-polymer tse sa utloeng mocheso (mohlala, PVC, PET, ABS ea boemo ba bongaka). Mekhoa e metle ea li-screw e sebetsana le sena:

• Ho Kopanya Lintho: Helical static mixers, metsoako ea phaenapole, le li-mixer tsa Maddock tse kopantsoeng sefofaneng sa screw ho aba matla a ho kuta ka ho lekana, ho fokotsa ho futhumatsa sebakeng ka 20-30%.
• Lifofane tse Fetohang tsa Pitch: Likarolo tsa sekontiri sa tapered tse hatellang lintho tse bonahalang butle-butle, ho fokotsa matla a ho kuta ka tšohanyetso le ho hlahisa mocheso.
• Meetso ea Sefofane sa Barrier: E arola likarolo tse tiileng le tse qhibilihisitsoeng, ho etsa bonnete ba ho qhibiliha ka ho feletseng pele ho ho kopanya ho kuta haholo-ho bohlokoa bakeng sa polasetiki ea boenjiniere (PC, PA, PBT).
• Litlhaloso tsa Sefofane sa Low-Shear: Bakeng sa lisebelisoa tse sa utloeng mocheso (mohlala, bioplastic, li-excipients tsa meriana) - e fokotsa mocheso oa ho kuta ho <5°C ka holimo sete mocheso oa extrusion.

Meetso ena ea moetlo e netefalitsoe litekong tsa mokha oa boraro ke Mokhatlo oa Baenjiniere ba Plastiki (SPE), e bonts'ang a 40% phokotso ea ho senyeha ha lintho tse bonahalang (e lekantsoe ka ho boloka MFR) ha e bapisoa le meralo e tloaelehileng ea screw bakeng sa lipolima tse sa utloeng mocheso.

Lisebelisoa tsa Extruder Screw Components: E Ikamahantseng le Maemo a Ts'ebetso

Likarolo tsa screw tsa Excellence li entsoe ka mefuta e mengata ea lisebelisoa tse sebetsang hantle, e khethiloeng e ipapisitse le ho hanyetsa ho apara, khanyetso ea kutu, mamello ea mocheso, le ho boloka litšenyehelo. Khetho e nepahetseng ea thepa e eketsa bophelo ba tšebeletso ea screw ho tloha 3-6 likhoeli (tšepe e tloaelehileng) ho 1-5 lilemo (lisebelisoa tsa premium), ho itšetlehile ka kopo:

1. Lisebelisoa tsa tšepe tsa lebelo le phahameng: W6Mo5Cr4V2
   • Thepa ea Bohlokoa: Ho thata ho fihla ho HRC 62-65, e babatsehang ho apara ho hanyetsa, matla a mocheso o phahameng (ho fihlela ho 600 ° C), le boima bo botle (e hanana le ho petsola/ ho petsola).
   • Lisebelisoa tse nepahetseng: Mekhoa ea ho apara e phahameng ea extrusion (lipolasetiki tse tletseng calcium carbonate/talc/glass fiber, dipolasitiki tse sebedisoang hape tse nang le ditshila tse hlabang, motsoako oa rabara).
   • Bophelo ba Tšebeletso: 18-24 likhoeli bakeng sa 24/7 ts'ebetso ka 50% metsoako ea PVC e tletseng (3x e telele ho feta tšepe ea nitrided).
   • Molemo oa Moruo: Litsenyehelo tse phahameng tsa pele ($800-$1,500 ka mithara) felloa ke 70% phokotso ea makhetlo a ho fetola le ho fokotsa nako.
2. Tšepe ea nitrided: 38CrMoAl
   • Thepa ea Bohlokoa: Ho thatafala ha sefahleho ho fihlela HRC 58-60 (lera la nitrided 0.5-0.8mm botenya), ho hanyetsa mokhathala o motle, ho thibela kutu e itekanetseng, le ho boloka litšenyehelo.
   • Lisebelisoa tse nepahetseng: Mekhoa e tloaelehileng ea extrusion (moroetsana PE/PP/ABS, metsoako e tlaase <20%, thepa e sa senyeheng).
   • Bophelo ba Tšebeletso: 6-12 likhoeli bakeng sa 24/7 opereishene le moroetsana PE/PP (maemo a indasteri bakeng sa extrusion ka kakaretso).
   • Molemo oa Moruo: Theko e tlase ea pele ($300-$600 ka mithara) - e loketseng bakeng sa tlhahiso ea li-batch tse nyane kapa mela e tlase ea molumo o tlase.
3. Ts'epe e sa beng le mabali: 316L, C276, etc.
   • Thepa ea Bohlokoa: Khanyetso e ikhethang ea kutu (316L: e hanyetsanang le asiti/metheo e bobebe; C276: e hanyetsanang le lik'hemik'hale tse matla joalo ka chlorine, sulfuric acid, le metsoako ea halogenated), ho latela maemo a lijo (316L kopana le FDA 21 CFR 177.1520), le botsitso ba mocheso o phahameng (ho fihla ho 800°C bakeng sa C276).
   • Lisebelisoa tse nepahetseng: Ts'ebetso ea lintho tse senyang (extrusion ea lik'hemik'hale, PVC e nang le acidic stabilizers), sephutheloana sa sephuthelo sa lijo/senowa (FDA-e lumellanang), extrusion ea sesebelisoa sa bongaka (lisebelisoa tsa biocompatible).
   • Bophelo ba Tšebeletso: 2-5 lilemo bakeng sa extrusion lik'hemik'hale (ha ho na moaparo o amanang le kutu), 12-18 likhoeli bakeng sa extrusion ea boemo ba lijo.
   • Ho latela melao: 316L e lumellana le FDA/USDA bakeng sa lits'ebetso tsa khokahanyo ea lijo; C276 e netefalitsoe ke ATEX bakeng sa tikoloho ea lik'hemik'hale tse phatlohang.
4. Tobetsa e chesang ea isostatic (HIP) lisebelisoa
   • Thepa ea Bohlokoa: Ts'ebetso ea HIP e felisa porosity ea ka hare ho thepa (tekano >99.9%), ho baka hore motho a be le kgatello e feteletseng ya ho apara (2x e phahameng ho feta W6Mo5Cr4V2), khanyetso e ikhethang ea kutu, le thepa e tšoanang ea mechine ho pholletsa le screw.
   • Lisebelisoa tse nepahetseng: Maemo a ts'ebetso a feteletseng (li-polymers tse tlatsitsoeng ka abrasive ceramic, lipolasetiki tsa boenjiniere tse nang le mocheso o phahameng joalo ka PEEK/PEI, extrusion ea lik'hemik'hale tse senyang).
   • Bophelo ba Tšebeletso: 3-5 lilemo bakeng sa 24/7 ts'ebetso e nang le PEEK e tletseng ceramic (bophelo bo bolelele ba ts'ebeletso ea thepa efe kapa efe ea screw).
   • Molemo oa Moruo: Litsenyehelo tsa pele tsa Premium ($1,800-$3,000 ka mithara) - ROI e fihlelletsoeng ho 12-18 likhoeli bakeng sa molumo o phahameng, mehala ea tlhahiso e phahameng.

Meetso ea Karolo e Ikemetseng ea Screw

1. Plastiki Compounding Screw Components

Bakeng sa ho kopanya polasetiki (tlhahiso ea masterbatch, polymer extrusion e tlatsitsoeng, recycled plastic reprocessing), Likarolo tsa screw tsa Excellence li etselitsoe ho eketsa ho hasana le ho fokotsa ho roala:

• Karolelano ea botebo ba Groove: 1.55 (maemo) kapa 1.4 (metsoako e phahameng ea ho tlatsa >40%).
• Lintho tse bonahalang: W6Mo5Cr4V2 (setlatsi se phahameng) kapa 38CrMoAl (setlatsi se tlase).
• Custom Features: Lithako tsa ho kopanya tse kopantsoeng, lifofane tse thibelang lifofane, le libaka tse fokotsang ho kuta ho thibela ho kopana ha li-filler le ho senyeha ha thepa.
• Lintlha tsa Ts'ebetso: 98% keketso ya ho qhalakanya (e netefalitsoe ke tlhahlobo ea SPE), 40% phokotso ea ho roala li-screw ha ho bapisoa le li-screws tse kopanyang tse tloaelehileng.

2. Lik'hemik'hale & Corrosive Material Screw Components

Bakeng sa extrusion ea lik'hemik'hale (li-polymers tse thehiloeng ho solvent, metsoako e senyang, li-chemicalbatches), corrosion resistance is prioritized:

• Karolelano ea botebo ba Groove: 1.6-1.8 (maximizes free volume for solvent evaporation).
• Lintho tse bonahalang: C276 (harsh chemicals) or 316L (mild corrosives).
• Custom Features: Smooth polished flight surfaces (Ra ≤ 0.8μm) to prevent material adhesion, sealed screw ends to eliminate chemical leakage.
• Ho latela melao: ATEX-certified for explosive chemical environments, REACH-compliant for EU chemical regulations.

3. Lijo & Medical-Grade Screw Components

For food packaging and medical device extrusion, hygiene and biocompatibility are critical:

• Karolelano ea botebo ba Groove: 1.55 (balances mixing and low shear).
• Lintho tse bonahalang: 316L tšepe e sa hloekang (FDA/USDA compliant).
• Custom Features: Easy-clean design (no dead zones for bacterial growth), bokahodimo bo bentshitsweng (Ra ≤ 0.4μm), and non-toxic lubricants (food-grade).
• Ho latela melao: FDA 21 CFR 177.1520 (lijo-kopano), ISO 10993 (medical device biocompatibility).

4. High-Temperature Engineering Plastic Screw Components

For engineering plastics (PEKE, PEI, PA66 with glass fiber), high-temperature strength and wear resistance are key:

• Karolelano ea botebo ba Groove: 1.4-1.55 (high torque for high-viscosity melts).
• Lintho tse bonahalang: HIP-processed W6Mo5Cr4V2 or C276 (botsitso ba mocheso o phahameng).
• Custom Features: Likanale tse pholisang ka har'a sekoti-hare (e fokotsa ho futhumatsa ka hare ka 25%), sekoaelo se sa mameleng (tungsten carbide) ka malebela a sefofane.
• Lintlha tsa Ts'ebetso: E boloka botsitso ba dimensional ho 400°C, bophelo ba tšebeletso ea 3+ lilemo bakeng sa extrusion ea PEEK e tletseng fiber ea khalase.

Litlhaloso tsa Tekheniki & Taolo ea Boleng

1. Dimensional Tolerances

Likarolo tsa screw tsa Excellence li entsoe ho ISO e thata 9001:2015 maemo a boleng, e nang le mamello ea boholo ba:

• Bophara ba kantle (D0): ± 0.02 limilimithara (bohlokoa bakeng sa ho lekana barrel).
• Bophara ba motso (Ho tloha): ± 0.03 limilimithara (e netefatsa tekanyo e tsitsitseng ea botebo ba groove).
• Sebaka sa sefofaneng: ± 0.05 limilimithara (tsoelo-pele ea thepa e tšoanang).
• Ho otloloha: ≤0.01mm/m (e thibela ho roala ha moqomo le ho lutla ha lintho).

Li-screw tsohle li hlahlojoa ho sebelisoa mechini e lekanyang ea CNC coordinate (CMM) ho netefatsa mamello pele ho thomello.

2. Likhetho tsa Phekolo ea Bokaholimo

Ho matlafatsa tshebetso, Bokhabane bo fana ka kalafo ea boikhethelo ea holim'a likarolo tsa screw:

• Nitriding: Bakeng sa tšepe ea 38CrMoAl (maemo) – increases surface hardness to HRC 58-60.
• Tungsten Carbide Coating: For W6Mo5Cr4V2 steel – increases wear resistance by 50% bakeng sa lisebelisoa tsa abrasive.
• PTFE Coating: For 316L steel – reduces material adhesion (ideal for sticky materials like TPE/TPU).
• Electropolishing: For 316L/C276 steel – improves corrosion resistance and hygiene (food/medical applications).

3. Quality Control Process

Every Excellence screw component undergoes a 7-step quality control process:

1. Raw material inspection (certificate of analysis verification for material grade and properties).
2. CNC machining with real-time dimensional monitoring.
3. Heat treatment (quenching/tempering for tool steel, nitriding for 38CrMoAl) with hardness testing.
4. Surface treatment (haeba ho hlokahala) with adhesion testing.
5. CMM dimensional inspection (full tolerance verification).
6. Dynamic balance testing (ISO 1940-1:2016) – vibration amplitude <0.1mm ka lebelo le phahameng la ho sebetsa.
7. Tlhahlobo ea ho qetela ea pono le setifikeiti (traceability ea lintho tse bonahalang, tlaleho ea dimensional, boima tlaleho).

Lintlha tsohle tsa taolo ea boleng li bolokiloe bakeng sa 10 lilemo, ho etsa bonnete ba hore ho na le ts'ebetso e feletseng ea ho latela melao (IATF 16949 bakeng sa likoloi, FDA bakeng sa bongaka).

Thuto-pale: HIP Material Screw Fokotsa Nako ea ho Pholosa bakeng sa Ceramic-Filled PEEK Extrusion (usa)

Moetsi oa likarolo tsa sefofane sa US o ne a tobane le ho hloleha khafetsa ha li-screw (mang le mang 3 likhoeli) ha o ntša PEEK e tletseng ceramic (30% aluminium filler) bakeng sa likarolo tsa sefofane:

• Mathata a mantlha:
  • Li-screw tsa W6Mo5Cr4V2 li ile tsa senyeha ka potlako (moaparo oa ntlha ea sefofane >1mm ka 3 likhoeli) ka lebaka la ho phatloha ha ceramic.
  • Nako e sa reroang (8 lihora ka ho fetola screw) – tahlehelo ea tlhahiso ea $15,000 ka ketsahalo ea ho theola nako.
  • Likarolo tse sa lumellaneng (ka lebaka la ho eketseha ha "screw clearance".) - 15% sekhahla sa sekhechana.
• Tharollo e Ntle: Likarolo tsa screw tsa W6Mo5Cr4V2 tse etselitsoeng HIP tse entsoeng ka tungsten carbide, tekanyo ea botebo ba groove 1.4 (torque e phahameng), le moralo oa sefofane sa mokoallo.
• Liphetho Ka mor'a Tlhophiso:
  • Screw service life atolosoa ho 36 likhoeli (12x e telele ho feta dikurufu tsa pele).
  • Nako ea phomolo e sa reroang e fokotsoe ke 92% (1 ketsahalo ea ho theola nako ka 3 lilemo vs. 4 ka selemo).
  • Sekhahla sa sekhechana se fokotsehile ho 1% (litekanyo tse sa fetoheng tsa likarolo ka lebaka la ho roaloa ha screw hanyane).
  • Litšenyehelo tsa selemo le selemo tsa $180,000 (nako ea phomolo + thepa + ditshenyehelo tsa ho fetola sekurufu).
  • ROI e fihlelletsoeng ka 8 likhoeli (litšenyehelo tsa screw $2,800 khahlano le. chelete ea selemo le selemo $180,000).

Motsamaisi oa boenjiniere ba polante o ile a fana ka maikutlo: "Li-screw tsa boleng bo holimo tsa HIP li fetotse ts'ebetso ea rona ea PEEK extrusion. Ha re sa tšoenyeha ka nako e sa reroang, 'me karolo ea rona ea boleng e ntlafetse ho kopana le mamello e tiileng ea indasteri ea lifofo (± 0.01 limilimithara). Sena se re lumelletse hore re phele 2 likonteraka tse ncha tsa sepakapaka tsa boleng ba $2M ka selemo. ”

Ho kenya, Tlhokomelo & Phapanyetsano ea Tataiso

1. Screw Installation Mekhoa e Molemo ka ho Fetisisa

Ho kenngoa ka mokhoa o nepahetseng ho tiisa ts'ebetso e nepahetseng le ho thibela ho apara pele ho nako:

1. Hloekisa barrel ea extruder hantle (tlosa masalla a dintho tsa kgale) pele o kenya screw e ncha - sebelisa molamu oa ho hloekisa moqomo le sesebelisoa sa ho hloekisa lijo (FDA-e lumellana le lisebelisoa tsa lijo / tsa bongaka).
2. Lekola moqomo hore na ha o a sebetsa (lekanya moqomo bophara ba ka hare) - nka sebaka sa moqomo haeba ho hloekisoa >0.5mm (ho tlosoa ho feteletseng ho baka ho khutla ha thepa le ho kopanya hampe).
3. Kenya sekoti u sebelisa sesebelisoa sa ho phahamisa (qoba ho liha kapa ho ngoapa lifofane) - torque coupling ea screw ho litlhaloso tsa moetsi (ka tlwaelo 300-500 Nm).
4. Sheba ho tsamaisana ha screw (ho sebedisa sesupa sa ho daela) – ho felloa ke matla ho lokela ho ba <0.02mm ntlheng ya screw.
5. Etsa lebelo le omileng (ha hona lintho tse bonahalang) ka lebelo le tlase (50 rpm) bakeng sa 10 metsotso – hlahloba lerata/ho sisinyeha ho sa tloaelehang (e bontsha tlhophiso e fosahetseng).

Excellence e fana ka buka e qaqileng ea ho kenya e nang le linepe le litlhaloso tsa torque bakeng sa mefuta eohle ea screw.

2. Tlhokomelo e Thibelang Bakeng sa Lisebelisoa tsa Screw

Tlhokomelo ea kamehla e eketsa bophelo ba screw mme e boloka ts'ebetso:

• Tlhokomelo ea Letsatsi le Letsatsi:
  • Hloekisa screw ka mor'a tlhahiso (hloekisa ka motsoako oa ho hloekisa) ho tlosa masalla a lintho tse bonahalang (e thibela carbonization le corrosion).
  • Lekola ntlha ea screw le lintho tse kopanyang bakeng sa ts'ebetso / tšenyo (tlhahlobo ea pono nakong ea ho hloekisa).
• Tlhokomelo ea Khoeli le Khoeli:
  • Lekanya phetisetso ea sefofane sa screw (barrel bophara ba ka hare - screw ka ntle bophara) - rekota data ho latela sekhahla sa ho apara.
  • Lubricate screw coupling (sebelisa mafura a mocheso o phahameng, FDA-e lumellana haeba ho hlokahala).
  • Sheba ho bokellana ha thepa libakeng tse shoeleng (ho kopanya likarolo, lifofane tse thibelang lifofane) – hloekisa ka borashe ba koporo (qoba ho ngoapa bokaholimo ba sefofane).
• Tlhokomelo ea Kotara:
  • Tlosa screw bakeng sa tlhahlobo e feletseng (lekanya botenya ba sefofane, hlahloba hore na ha ho rusie/ ho petsoha).
  • Liaparo tse nyane tsa Poland mabapi le malebela a sefofane (ho sebelisa sandpaper ea 400-grit) ho busetsa ho nepahala ha dimensional.
  • Hlahloba liner tsa moqomo hore na ha li sebetse (fetola ha ho hlokahala ho boloka tumello e nepahetseng).

3. Screw Replacement Criteria

Fetola likarolo tsa screw ha:

• Keletso ea sefofaneng >1mm (e bakang kopanyo e mpe le tlhahiso e sa tsitsang).
• Corrosion pitting >0.5mm botebo (kotsi ea ho silafala ha lintho tse bonahalang le ho hlōleha ha sebopeho).
• Mapetso a lifofane kapa mantlha (kotsi ea polokeho - kotsi ea ho robeha ha screw nakong ea ts'ebetso).
• Screw clearance >0.8mm (thepa backflow fokotsa extruder bokgoni ka >20%).
• Ho senyeha ha lintho tse bonahalang (Phapang e fapaneng ea MFR >10%) - e bonts'a ho tsoakana hampe ka lebaka la lifofane tse tsofetseng.

Bokhabane bo fana ka ts'ebeletso ea tlhahlobo ea screw (setšeng kapa se thehiloeng lab) ho lekola moaparo le ho khothaletsa nako e ncha.

Lipotso ka Likarolo tsa Excellence Extruder Screw

Q: Na Excellence e ka etsa likarolo tsa screw bakeng sa boholo bo sa tloaelehang ba extruder (mohlala, 65mm, 90bophara ba mm)?

A: Ee. Bokhabane bo etsa likarolo tsa screw bakeng sa li-diameter tsohle tse tloaelehileng tsa extruder (15ho tloha ho limilimithara ho 200 mm) le li-diameter tse tloaelehileng (ho latela litšoantšo tsa bareki). Re boetse re hlahisa likaroloana tsa li-twin-screw (ho potoloha mmoho le ho bilika) bakeng sa ho kopanya li-extruders, ka boholo ba sekontiri ho tloha ho 10mm ho isa ho 100mm.

Q: Ke nako efe e etellang pele bakeng sa likaroloana tsa screw tsa tloaelo (khetho ea lintho tse bonahalang + tekanyo ea botebo ba groove + moralo o khethehileng)?

A: Likarolo tse tloaelehileng tsa screw (38CrMoAl, 1.55 tekanyo ea botebo ba groove) ba le nako ea pele ea 2-3 libeke. Likarolo tse ikhethileng (Lisebelisoa tsa HIP, karo-karolelano e khethehileng ea botebo ba groove, ho kopanya likarolo) hloka 4-6 libeke. Tlhahiso e potlakileng (1-2 libeke bakeng sa maemo, 3 libeke bakeng sa tloaelo) e fumaneha bakeng sa tlatsetso 25% tefello.

Q: Na Excellence e fana ka litlaleho tsa tlhahlobo ea lisebelisoa bakeng sa likarolo tsa screw?

A: Ee. Likarolo tsohle tsa screw li tla le setifikeiti sa thepa (setifikeiti sa tlhahlobo - COA) ho netefatsa boemo ba thepa, thatafalo, le sebopeho sa lik'hemik'hale. Bakeng sa lisebelisoa tsa HIP, re boetse re fana ka litlaleho tsa ts'ebetso ea HIP (tekano, porosity) le teko e sa senyeheng (NDT) litlaleho (tlhahlobo ea ultrasonic bakeng sa bokooa ba ka hare).

Q: Ke khetha joang thepa e nepahetseng bakeng sa kopo ea ka ea extrusion?

A: Sehlopha sa botekgeniki sa Excellence se fana ka tataiso ea mahala ea khetho ea thepa e thehiloeng ho:

• Mofuta oa thepa (virgin/recycled, tlatsitsoe/e sa tlatsoa, corrosive/ E sa senyeheng).
• Mocheso oa Extrusion (lipolasetiki tsa boenjiniere tse phahameng tsa mocheso vs. li-polymer tse tloaelehileng).
• Bophahamo ba tlhahiso (24/7 opereishene vs. tlhahiso ea batch).
• Tekanyetso (litšenyehelo tsa pele vs. kakaretso ea litšenyehelo tsa ho ba le).

Re boetse re fana ka lenaneo la teko (30-teko ea letsatsi ea sekoti sa mohlala) bakeng sa bareki ba bacha ho netefatsa ts'ebetso pele ba reka ka botlalo.

Q: Ho fanoe ka waranti efe bakeng sa likarolo tsa Excellence screw?

A: Tiisetso e tloaelehileng: 12 likhoeli bakeng sa 38CrMoAl le 316L screws, 24 likhoeli bakeng sa W6Mo5Cr4V2 le li-screws tsa thepa tsa HIP (e koahela mefokolo ea tlhahiso le ho apara pele ho nako <0.5mm selemong sa pele). Tiisetso e atolositsoeng (36 likhoeli) e fumaneha bakeng sa tlatsetso 15% tefello, ho kenyelletsa le tlhahlobo ea moaparo oa selemo le selemo.

Ka lilemo tse fetang mashome a mabeli, Likarolo tsa Excellence's extruder screw li behile maemo a indasteri a ho hanyetsa ho roala, tshireletso ya kutu, le ts'ebetso e ikhethileng ea ts'ebeliso. Hore na o hlahisa PE/PP e tloaelehileng, lik'hemik'hale tse senyang, li-polymer tsa boemo ba lijo, kapa lipolasetiki tsa boenjiniere tse nang le mocheso o phahameng, li-screw tsa rona li etselitsoe ho eketsa nako, fokotsa litšenyehelo, le ho ntlafatsa boleng ba sehlahisoa. Contact our technical team today to request a free screw design consultation and quote tailored to your extrusion process requirements.