Kev ua yas txhaj tshuaj molding yog ntau heev hauv kev lag luam ua lub taub hau. Ua ntej, nws yog pheej yig thiab tus nqi qis ua rau hom nozzle no nrov dua. Qhov thib ob yog qhov sib xws ntawm cov khoom. Piv nrog rau kev ua haujlwm ntawm cov hlau hlau, txhaj tshuaj molding nozzles muaj qhov sib xws zoo, qhov no yog vim txheej txheem txheej txheem hlau, ib qho xwm txheej me me tuaj yeem ua rau lub taub hau hloov pauv (xws li cov cuab yeej hnav hauv cov txheej txheem tig, cua txias tsis txaus, thiab lwm yam, yog li cov tshuab ua hlau yuav tsum tau tshuaj xyuas tas li kom ntseeg tau tias qhov ua tau zoo ntawm cov khoom lag luam ruaj khov). Txhaj tshuaj molding tsis muaj qhov xav tau siab. Tsuav yog cov pwm muaj kev ncaj ncees, lub siab thiab qhov kub tau zoo ib yam, thiab lub sijhawm txias yog zoo ib yam, qhov ua tau zoo ntawm cov khoom lag luam tsim tau zoo ib yam thiab ruaj khov.

Lwm qhov zoo ntawm cov yas txhaj tshuaj molding nozzles yog tias rau lub taub hau nrog cov duab nyuaj, cov tshuab hlau feem ntau xav tau cov nqi tsim khoom loj, thaum yas txhaj tshuaj molding tsis muaj qhov teeb meem no. Tus nqi pwm tuaj siab, tab sis nws tau sib npaug sib npaug rau txhua tus Thaum tsim cov taub hau, tus nqi yuav qis heev, uas tseem txiav txim siab tias thaum tsim khoom loj, txoj hauv kev no tuaj yeem txo cov nqi tsim khoom. Rau kev tsim khoom me me, kev ua cov khoom siv tau zoo dua.