Moulding siab yog hais txog lub siab ntawm cov kab rov tav projected cheeb tsam ntawm cov khoom. Nws txoj haujlwm yog kom kov yeej lub vapor siab uas tsim los ntawm cov volatiles hauv cov khoom, zam qhov tsis xws ntawm cov khoom xws li npuas, stratification, thiab cov qauv xoob. Nyob rau tib lub sijhawm, nws tseem tuaj yeem ua kom cov khoom siv fluidity, yog li cov khoom tuaj yeem sau tag nrho cov ces kaum ntawm cov pwm kab noj hniav thiab ua rau cov khoom tsim compact. , Cov neeg kho tshuab lub zog yog txhim kho.

Hauv cov txheej txheem molding, ntxiv rau kev siv cov tshuaj tso tawm sab hauv, cov neeg tso tawm sab nraud kuj tau siv rau ntawm qhov chaw ntawm pwm kab noj hniav. Feem ntau siv yog oleic acid, paraffin, stearic acid, zinc stearate, silicone roj, thiab silicone roj. Thiab silicone roj hmab, thiab lwm yam. Nyob rau hauv lub premise ntawm ua tau raws li qhov yuav tsum tau ntawm demolding, tus nqi ntawm tso tawm neeg sawv cev thov yuav tsum tsawg li tsawg tau, thiab daim ntawv thov yuav tsum txawm. Raws li ib txwm muaj, phenolic molding cov ntaub ntawv feem ntau siv cov khoom tso tawm xws li cov roj organic, oleic acid thiab stearic acid, epoxy lossis epoxy phenolic molding cov ntaub ntawv feem ntau yog cov roj silicone thiab cov roj silicone tso tawm, thiab cov ntaub ntawv polyester molding feem ntau yog cov roj. Tso cov tshuaj xws li zinc acid thiab silicone roj.