Muab cov qauv ntawm cov khoom siv hauv cov hniav nyiaj hniav kub thiab cov qauv siab uas yuav tsum tau ua rau lawv ua, cov cuab yeej tsim yuav tsum ua kom muaj kev tswj xyuas meej ntawm cov txheej txheem melting, pouring, thiab ua cov theem. Ib qhov zoo- npaj cov qauv tsim thiab kev ua haujlwm ruaj khov pab txo qhov yuam kev thaum lub sij hawm casting thiab txhim kho qhov zoo ntawm cov hniav nyiaj hniav kub tiav.
Kev tswj qhov kub thiab txias yog ib qho tseem ceeb ntawm cov khoom siv hauv cov hniav nyiaj hniav kub casting. Cov cuab yeej siv yuav tsum muaj peev xwm ua kom cua sov sai, kev tswj xyuas qhov kub thiab txias, thiab kev tswj xyuas thermal ruaj khov kom ua tau raws li qhov yuav tsum tau ua ntawm ntau yam hlau muaj nuj nqis. Kev ua kom zoo ntawm cov cua sov sib dhos thiab cov txheej txheem tswj qhov kub thiab txias ua kom cov hlau zoo sib xws thiab txo qhov tsis xws luag ntawm casting-xws li porosity thiab cracking- ua los ntawm qhov kub thiab txias.
Kev tsim kho tshuab ntawm cov khoom siv yog qhov tseem ceeb sib npaug. Kev ua haujlwm du yog qhov tseem ceeb thaum lub sijhawm casting txheej txheem; tshwj xeeb tshaj yog rau cov tswv yim zoo li lub tshuab nqus tsev casting thiab centrifugal casting, cov cuab yeej yuav tsum muaj kev ruaj ntseg zoo thiab kev co zoo heev. Tsis tas li ntawd, lub qhov dej zoo -tsim qauv tsim rau pwm kev teeb tsa, kev tso khoom, thiab chaw ua haujlwm tus neeg teb xov tooj txhim kho kev ua haujlwm zoo thaum ua kom yooj yim ntawm kev siv thiab tu.