Kev tawg, suav nrog cov kab nrib pleb, microcracks, sab saum toj whitening, tawg ntawm qhov chaw ntawm qhov chaw, thiab kev puas tsuaj tshwm sim los ntawm ib feem thiab ntws channel sticking, muab faib ua demoulding cracking thiab daim ntawv thov tawg raws li lub sijhawm tawg. Feem ntau muaj cov laj thawj hauv qab no:
1. Kev ua:
(1) Kev ua haujlwm ntau dhau, nrawm nrawm, cov ntaub ntawv ntim ntau, kev txhaj tshuaj ntev ntev thiab tuav lub sijhawm yuav ua rau muaj kev ntxhov siab ntau dhau thiab tawg.
(2) Kho cov pwm qhib ceev thiab siab los tiv thaiv kom nrawm thiab yuam kev kos duab ntawm qhov chaw los ntawm demoulding thiab tawg.
(3) Ua kom cov pwm kub kom ua kom cov khoom yooj yim rau demould, thiab txo cov khoom kub kom tsis txhob decomposition.
(4) Tiv thaiv kom tsis txhob tawg vim qhov vuam cov cim thiab cov yas degradation uas ua rau lub zog qis dua.
(5) Tsim nyog siv tus neeg sawv cev tso tawm, thiab ua tib zoo saib xyuas kom nquag tshem tawm cov aerosol thiab lwm yam khoom uas txuas rau pwm nto.
(6) Qhov kev ntxhov siab ntawm qhov chaw ua haujlwm tuaj yeem raug tshem tawm los ntawm kev kho cua sov tam sim ntawd tom qab tsim los txo cov cim ntawm cov kab nrib pleb.
2. Pwm yam:
(1) Ejection yuav tsum sib npaug, xws li tus naj npawb thiab ntu ntu ntawm ejector pins yuav tsum txaus, lub kaum sab xis yuav tsum txaus, thiab cov kab noj hniav yuav tsum du txaus, thiaj li tiv thaiv kev tawg vim qhov concentration ntawm ejection residual kev nyuaj siab tshwm sim los ntawm sab nraud quab yuam.
(2) Cov qauv ntawm lub workpiece yuav tsum tsis txhob nyias dhau, thiab qhov kev hloov pauv yuav tsum tau txais kev hloov pauv ntawm lub voj voog kom ntau li ntau tau kom tsis txhob muaj kev ntxhov siab los ntawm cov ces kaum ntse thiab chamfers.
(3) Txo qhov kev siv cov hlau ntxig kom tsis txhob muaj kev ntxhov siab sab hauv los ntawm kev nce ntxiv vim qhov sib txawv ntawm qhov shrinkage ntawm cov ntxig thiab cov khoom ua haujlwm.
(4) Tsim nyog demoulding cua nkag channel yuav tsum tau muab rau qhov tob hauv qab kom tiv thaiv kev tsim ntawm lub tshuab nqus tsev tsis zoo.
(5) Lub ntsiab channel yog txaus los ua cov khoom siv ntawm lub rooj vag demould thaum nws tsis khov rau yav tom ntej, yog li nws yooj yim rau demould.
(6) Lub sprue bushing yuav tsum tau txuas nrog lub nozzle los tiv thaiv kev rub ntawm cov khoom siv txias txias kom ua rau qhov chaw lo rau cov pwm ruaj khov.
3. Khoom siv:
(1) Cov ntsiab lus ntawm cov khoom siv rov ua dua tshiab yog siab dhau, ua rau lub zog qis ntawm qhov chaw.
(2) Cov av noo ntau dhau yuav ua rau qee cov khoom siv tshuaj lom neeg nrog dej vapor, txo lub zog thiab ua rau ejection tawg.
(3) Cov khoom siv nws tus kheej tsis haum rau ib puag ncig uas tau ua tiav lossis qhov zoo tsis zoo, thiab nws yuav ua rau tawg yog tias nws muaj kuab paug.
4. Tshuab yam:
Lub peev xwm plasticizing ntawm lub tshuab txhaj tshuaj molding yuav tsum tsim nyog. Yog tias nws me dhau lawm, lub peev xwm plasticizing yuav tsis sib xyaw ua ke thiab yuav ua nkig. Yog hais tias nws loj heev, nws yuav degrade.
