Nyob rau hauv kev tsim cov txhuas alloy tuag- nrum qhov chaw, qhov tshwm sim ntawm cov hlau molten tsis ua rau pwm kab noj hniav, tsis tiav hauv zos contours, lossis cov npoo uas ploj lawm feem ntau hu ua cov khoom tsis txaus. Cov teeb meem no cuam tshuam ncaj qha rau qhov raug qhov tseeb, qhov zoo ntawm qhov zoo, thiab tom qab sib dhos ua haujlwm ntawm cov khoom, yog li yuav tsum tau ua tib zoo saib xyuas hauv kev tuag- kev tswj cov txheej txheem casting.
Lub flowability ntawm aluminium alloy nyob rau hauv nws lub xeev molten yog ib qho tseem ceeb ntawm kev txiav txim seb lub pwm kab noj hniav yog sau. Thaum qhov kub ntawm cov molten aluminium yog tsawg dhau los yog qhov sib piv ntawm cov khoom tsis ruaj khov, cov hlau molten yog qhov ua rau lub cev tsis muaj zog thaum lub sij hawm ua cov txheej txheem filling, uas ua rau tsis tiav qhov chaw nyob deb.
