Cov kev cai tsim nyog rau kev tsim cov tsheb pwm

1. Txheeb xyuas cov txheej txheem tsim khoom, pwm qauv, thiab txheej txheem tsim khoom. Ua kom lub neej pwm ntau dua 1 lab lub sijhawm.
2. Nws yog ib qho tsim nyog los tsim cov qauv pwm ua tiav thiab cov khoom ua tiav, thiab nthuav tawm cov kev cai sib dhos thiab cov txheej txheem txhaj tshuaj molding.
3. Ua rau muaj qhov tsis zoo ntawm qhov zoo ntawm cov khoom yas (xws li shrinkage) lossis pwm teeb meem (xws li parting deg teeb, qhov rooj teeb, thiab tsis muaj peev xwm lav pwm lub neej, thiab lwm yam).
4. Qhov tshwm sim ntawm lub tsheb pwm: Cov tsos ntawm cov pwm yuav tsum tau ua kom tsis muaj xeb, kev sib tsoo cov cim, thiab cov khoom siv tsis zoo xws li tsis tuaj yeem ua haujlwm.
5. Pwm kev thauj mus los: Pwm tsheb thauj mus los yuav tsum tau nruab nrog cov ntawv xauv, nrog cov ntim ruaj khov thiab tiv thaiv xeb.
6. Pwm cov ntaub ntawv: Tib lub sij hawm raws li cov pwm xa tuaj, yuav tsum tau muab cov khoom ua tiav ntawm cov pwm tsis zoo thiab cov ntaub ntawv saib xyuas.