Yas Txhaj Molding yog dab tsi
Cov yas yog plasticized nyob rau hauv cov cua kub chim ntawm lub tshuab txhaj tshuaj molding, thiab ces txhaj rau hauv kab noj hniav ntawm ib tug kaw pwm los ntawm ib tug plunger los yog ib tug reciprocating ntsia hlau los tsim ib txoj kev ua yas. Txoj kev no tuaj yeem ua cov khoom lag luam nrog cov duab nyuaj, qhov ntev meej lossis nrog cov ntxig, thiab cov khoom siv tau zoo heev. Feem ntau cov thermoplastics thiab qee cov thermosetting plastics (xws li phenolic plastics) tuaj yeem ua tiav li no. Cov khoom siv rau kev txhaj tshuaj molding yuav tsum muaj fluidity zoo txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau kom tau txais cov khoom. Txij li thaum xyoo 1970, ib hom kev txhaj tshuaj molding nrog cov tshuaj tiv thaiv, hu ua tshuaj tiv thaiv txhaj tshuaj molding, tau tsim sai heev.