Cov txheej txheem tsim cov iav fwj feem ntau suav nrog:
① ua ntej ntawm cov khoom siv raw. Sib tsoo blocky raw cov ntaub ntawv (quartz xuab zeb, dej qab zib tshauv, limestone, feldspar, thiab lwm yam) kom qhuav cov ntaub ntawv raw, thiab tshem tawm cov hlau los ntawm cov hlau uas muaj cov ntaub ntawv raw los xyuas kom meej iav zoo.
② Batch npaj.
③ Qhuav. Cov iav batch yog rhuab ntawm qhov kub thiab txias ({0}} degrees Celsius) nyob rau hauv ib lub tank los yog lub cub tawg los tsim ib tug uniform, npuas tsis muaj kua iav uas ua tau raws li qhov yuav tsum tau molding.
④ Kev tsim kho. Muab cov iav ua kua rau hauv pwm los ua cov khoom siv iav uas xav tau, xws li cov phaj tiaj tus, ntau yam khoom siv, thiab lwm yam.
⑤ Kev kho cua sov. Los ntawm annealing, quenching, thiab lwm yam txheej txheem, kev ntxhov siab, theem sib cais, lossis crystallization hauv lub khob tuaj yeem raug tshem tawm lossis tsim tawm, nrog rau cov txheej txheem ntawm lub khob tuaj yeem hloov pauv.
