Muaj ntau ntau yog vim li cas rau lub warpage ntawmyas txhaj tshuaj cov khoom, xws li pwm ejection ceev dhau, pwm kub kub, pwm pwm tsis sib xws, thiab asymmetry ntawm lub tshuab khiav.
Ob qhov kev muaj peev xwm loj tshaj plaws yog:
① Ibyas txhaj tshuaj qhov chawtsis sib npaug ntawm cov tuab lossis cov fab tsis zoo txaus, yog li lawv tsis tuaj yeem sib npaug txias thiab ntsws, ua rau muaj kev sib ntaus sib tua thiab deformation.
② Lub rooj vag khiav yuav tsum tau muab tso rau ntawm lub ces kaum ntawm lub rooj vag rau qee cov khoom yas tiaj tus los tsim qhov chaw zoo nkauj. Cov yas molten tsuas yog muab nchuav rau hauv pwm kab noj hniav ntawm kev kub ceev los ntawm ib kawg thaum txhaj kua nplaum. Yog li ntawd, cov yas tsim nyob rau hauv pwm kab noj hniav straightens nyob rau hauv tib txoj kev taw qhia (hu ua orientation). Kev ntxhov siab yog siab; Thaum lub sij hawm demolding, cov molecules raug rub rov qab mus rau lawv qhov qub, ua rau lawv deform.
Txhawm rau ua kom cov yas molten sau cov kab noj hniav kom zoo, tus tsim yuav tsum zam cov ntsiab lus hauv qab no kom ntau li ntau tau:
Lub thickness ntawm tib yamyas txhaj ib feemtxawv dhau lawm;
Ntau lub kaum sab xis;
Lub cheeb tsam tsis yog luv heev kom cov thickness hloov txawv heev.
Los ntawm kev txheeb xyuas lub rooj vag, kev tsim cov pwm yuav tsum xyuas kom meej tias cov yas tuaj yeem nkag mus rau hauv pwm kab noj hniav zoo. Yog li ntawd, tus khiav yuav tsum zam lub kaum sab xis tig daim ntawv. Lub ntsiab lus tig yog tsim nyog rau thaj tsam arc hloov pauv. Yog li ntawd, tus khiav luv luv thiab tuab yog qhov zoo tshaj plaws, uas yuav pab txo cov dej tsis kam thiab kev taw qhia dej.
Txawm li cas los xij, ib qho teeb meem yuav tsum xav txog yog tias lub qhov rooj loj heev yuav ua rau cov neeg khiav khiav pov tseg thaum tseem cuam tshuam rau qhov zoo nkauj ntawm cov khoom yas. Tsis tas li ntawd, yog tias lub rooj vag loj dhau thiab cov khib nyiab yuav khaws cia, sim ntxiv me ntsis ntawm QIAGEN silicone hmoov los txhawb cov khoom siv raw' s fluidity kom txo tau cov kua dej tsis kam, lav lub rooj vag kom zoo, thiab tsis txhob deformation ntawm cov khoom tiav.
Tsis tas li ntawd, ntxiv cov txheej txheem ntawm Kaijie demolding lubricant rau cov khoom tiav tuaj yeem ua rau qhov kev ua tau zoo ntawm kev ua tiav, tiv thaiv kev sib txawv nruj ntawm cov yas muab tub lim los ntawm kev tsim cov teeb meem demolding thiab distortion. Tus nqi ntawm cov khoom siv txhaj tshuaj thiab daim ntawv ntawm qhov tshwm sim yuav cuam tshuam qhov loj ntawm shunt' s cross-sectional shape. Tom qab thickening qhov nyuaj-rau-form tivthaiv ntawm tus khiav, lub ntsiab khiav yuav tsum tau nce mus rau qhov chaw uas lub cross-sectional cheeb tsam ntawm lub ntsiab runner sib npaug rau tag nrho cov kua channel' s cross-sectional cheeb tsam .
Txheej txheem daws teeb meem:
1. Cov khoom tiav tsis tau txias thaum nws tawm → txo cov pwm kub
→ Ntxiv lub sijhawm txias
→ Txo cov khoom siv raw kub
2. Cov duab thiab thickness ntawm cov khoom tiav yog asymmetry → Tom qab demolding, nws yog tsau nrog ib tug zoo li tus ncej
→ Hloov cov qauv tsim
3. Cov muab tub lim ntau dhau → txo kev txhaj tshuaj, ceev, sijhawm, thiab ntau npaum li cas
4. Tsis sib npaug ntawm ntau lub rooj vag → hloov rooj vag
5. Tsis sib npaug ejector system → Txhim kho ejector system
6. Tsis sib xws pwm kub → kho pwm kub
7. Cov khoom siv raw khoom nyob ze ntawm lub rooj vag yog xoob thiab khov heev → kom nce lossis txo lub sijhawm txhaj tshuaj