Lub hauv paus ntsiab lus ua haujlwm ntawm lub tshuab molding zoo ib yam li cov koob txhaj tshuaj. Nws siv lub thrust ntawm ib tug ntsia hlau (los yog plunger) txhaj pre-plasticized molten yas (piv txwv li, ib tug viscous flow xeev) rau hauv ib tug kaw pwm kab noj hniav. Tom qab solidification thiab shaping, cov khoom tiav yog tau.
Lub tshuab molding heats cov yas thiab siv lub zog siab rau cov yas molten, ua rau nws yuav tsum tau txhaj thiab sau cov pwm kab noj hniav.
Cov txheej txheem molding yog cyclical. Txhua lub voj voog feem ntau suav nrog: metered feeding-melting and plasticizing-pressure injection-pwm filling and cooling-pould open and part extingu. Tom qab cov yas tau muab tshem tawm, cov pwm raug kaw dua, thiab lub voj voog tom ntej pib.
