Lub luag haujlwm ntawm kev txhaj tshuaj
Kev txhaj tshuaj yog ib qho ntawm cov tseem ceeb tshaj plaws ntawm kev txhaj tshuaj molding tshuab. Feem ntau, nws muaj peb lub ntsiab ntawm hom plunger, ntsia hlau hom thiab ntsia hlau ua ntej plunger txhaj hom. Kev siv ntau tshaj plaws yog cov ntsia hlau hom. Kev ua haujlwm yog tias, nyob rau hauv lub voj voog ntawm kev txhaj tshuaj moulding tshuab, qee qhov nqi ntawm cov yas tuaj yeem ua rau yas thiab yas ua tiav nyob rau lub sijhawm ua ntej, thiab cov yas molten tau txhaj rau hauv cov pwm kab noj hniav los ntawm cov ntsia hlau ntawm qhov ceev thiab ceev. Tom qab txhaj tiav tas, cov yaj tau txhaj rau hauv qhov kab noj hniav yog khaws cia teeb tsa.