12 ib txwm tsis xws luag ntawm cov khoom yas molded

Sau: Selena Wong Hloov tshiab: 2022-10-09

Thaum Suntime pwm ua pwm txoj kab lossis yas txhaj tshuaj molding ntau lawm rau cov neeg siv khoom, qhov tsis xws ntawm cov khoom yas tsis tuaj yeem zam 100%.Muaj 12 qhov tsis xws luag ntawm cov khoom yas pwm xws li cov kab nyiaj, vuam kab, cua npuas, deformation, ntws cov cim, luv luv txhaj tshuaj, flash, dab dej cim, drag marks, tawg, ejection mark, runner kos hlau.

1. Silver kab: Qhov no yog tshwm sim los ntawm tsis qhuav txaus rau cov khoom yas ua ntej txhaj tshuaj molding.Nquag, nws tuaj yeem tshwm sim hauv T0 thiab tom qab thawj qhov kev sim hauv lub chaw muag khoom lub Hoobkas, nws yuav tsis tshwm simnyob rau hauv ib txwm ntau lawm theem.

2. Vuam kab / kab sib txuas: Qhov no yog ib txoj kab me me hauv cov yas molded qhov chaw.Nws tshwm nyob rau hauv cov khoom tsim los ntawm kev txhaj tshuaj pwm muaj ob peb lub ntsiab lus txhaj tshuaj.Thaum cov khoom siv melting sib ntsib, cov kab sib txuas / cov kab sib txuas tawm los.Nws yog ib txwm tshwm sim los ntawm qhov sib txawv pwm kub los yog cov khoom kub qis heev.Nws yog ib qho yooj yim mus nrhiav tau nyob rau hauv loj yas molded qhov chaw thiab tsis tuaj yeem daws tau tag nrho, tsuas yog ua tau zoo tshaj plaws los tshem tawm nws.

3. Cua npuas: Huab cua npuas yog cov void tsim hauv phab ntsa ntawm cov khoom tiav molded.Nws tsis tuaj yeem pom los ntawm sab nraud rau qhov tsis yog pob tshab yog tias tsis txiav nws.Qhov nruab nrab ntawm cov phab ntsa tuab yog qhov chaw uas muaj qhov txias txias, yog li ceev ceev txias thiab shrinking yuav rub cov khoom siv raw los tsim cov voids thiab ua npuas npuas.Cov npuas npuas yog pom tseeb heev ntawm pob tshab.Pob tshab lo ntsiab muag thiab pob tshab qhia teeb pom kev zoo feem ntau yuav tshwm sim.Yog li, thaum peb pom cov phab ntsa thickness ntau dua 4 ~ 5 hli, nws yuav zoo dua los hloov cov qauv ntawm cov yas.

4. Deformation / dabtsi yog khoov:Thaum txhaj tshuaj, cov resin hauv the pwm tsim kev ntxhov siab sab hauv vim muaj kev kub siab.Tom qab demolding, deformation thiab khoov tshwm sim ntawm ob sab ntawm cov khoom tiav.nyias-plhaub ntev molded khoom yog yooj yim heev kom muaj deformation / dabtsi yog khoov.Yog li, thaum ua ib feem tsim, designers yuav tsum thicken phab ntsa thickness.Thaum Suntime designers ua DFM tsom xam, peb yuav nrhiav tau qhov teeb meem thiab muab tswv yim rau cov neeg muas zaub hloov cov phab ntsa tuabness los yog ua reinforcing ribs.

5. Flow marks:Thaum cov khoom siv yas ntws mus rau hauv cov kab noj hniav ntawm pwm, ib lub nplhaib me me-puab wrinkle tshwm nyob ib ncig ntawm lub rooj vag ntawm qhov chaw.Nws kis tawm ntawm qhov chaw txhaj tshuaj thiab cov khoom matte yog qhov pom tseeb tshaj plaws.Qhov teeb meem no yog ib qho nyuaj tshaj plaws los kov yeej rau cov teeb meem tshwm sim.Yog li ntawd, feem ntau cov chaw tsim khoom pwm yuav ua rau qhov chaw txhaj tshuaj yuav tsum tau muab tso rau ntawm qhov chaw pom kom txo tau qhov teeb meem no.

6. Short shot:Nws txhais tau hais tias cov khoom molded tsis puv puv, thiab muaj qee qhov ploj lawm hauv ib feem.Qhov teeb meem no tuaj yeem txhim kho tshwj tsis yog tias cov pwm tsim tsis tsim nyog.

7. Flash / Burrs:Lub flash yog ib txwm tshwm sim nyob ib ncig ntawm thaj tsam ntawm txoj kab sib cais, ejector pins, sliders / lifters thiab lwm qhov chaw sib koom ua ke.Qhov teeb meem yog tshwm sim los ntawm pwm haum qhov teeb meem lossis los ntawm kev kub siab dhau los yog pwm kub kub hauv cov yas txhaj tshuaj molding.Cov teeb meem zoo li no tuaj yeem daws tau thaum kawg.

8. Sink Mark:Vim yog cov resin shrinkage, qhov saum npoo muaj hollow marks nyob rau hauv cov phab ntsa tuab ntawm cov khoom molded.Qhov teeb meem no yooj yim pom.Feem ntau, yog cov xovxwmure poob, qhov tshwm sim ntawm shrinkage yuav ntau dua.Cov teeb meem zoo li no yuav tsum tau tham thiab daws raws li kev sib koom ua ke ntawm kev kuaj xyuas pwm tsim, pwm tsim thiab txhaj tshuaj molding.

9. Drag mark:Qhov teeb meem no feem ntau tshwm sim los ntawmlub kaum sab xis tsis txaus lossis lub zog ntawm cov tub ntxhais sab kom rub cov khoom tsis muaj zog raws li cov kab noj hniav sab thiab cov cim rub yog tsim los ntawm kab noj hniav.

 Kev daws teeb meem:

1. Ntxiv lub kaum sab xis ntxiv.

2. Ua ntau polishing hauv kab noj hniav / tub ntxhais.

3. Tshawb xyuas seb qhov kev txhaj tshuaj loj dhau lawm, kho qhov molding parameter kom tsim nyog.

4. Cov kab noj hniav zoo / core steel kom tsawg shrinkage

10. Kev tawg:Kev tawg yog ib qho tsis xws luag hauv cov khoom yas, uas feem ntau yog tshwm sim los ntawm kev ntxhov siab deformation uas feem ntau yog los ntawm kev ntxhov siab, kev ntxhov siab sab nraud.thiab kev ntxhov siab deformation tshwm sim los ntawm ib puag ncig sab nraud.

11. Ejection mark:Cov laj thawj tseem ceeb rau eJector cov cim yog: tsim tsis tsim nyog rau ejection txoj hauj lwm, tuav lub siab loj heev, tuav lub sij hawm ntev dhau lawm, tsis txaus polishing, sib sib zog nqus tav, tsis txaus lub kaum sab xis, tsis sib npaug ejection, tsis sib haum xeeb cheeb tsam thiab hais txog.

12. Yas kos hlau nyob rau hauv khiav: Yog vim li casrau qhov tshwm sim ntawm cov yas kos hlau yog qhov kub thiab txias hauv nozzle lossis cov lus qhia kub.