Txheej txheem ntws ntawm iav raj mis

Cov txheej txheem ntawm lub raj mis tsim feem ntau suav nrog:

① Cov khoom siv raw yog ua ua ntej, cov ntaub ntawv nyoos loj (quartz xuab zeb, dej qab zib tshauv, limestone, feldspar, thiab lwm yam) tawg, cov ntaub ntawv ntub dej qhuav, thiab cov khoom siv hlau uas muaj hlau yog ua tiav rau cov hlau tshem tawm kom ntseeg tau. qhov zoo ntawm iav;

② Kev npaj pob khoom;

③ Melting, iav fwj Tuam Tshoj' cov khoom ntim ntim khoom ntim, iav kuj yog ib yam khoom ntim khoom uas muaj keeb kwm ntev. Nrog ntau cov khoom ntim ntim rau hauv kev ua lag luam, cov thawv ntim iav tseem muaj txoj haujlwm tseem ceeb hauv kev ntim dej haus, uas yog qhov sib cais ntawm nws cov yam ntxwv ntim uas lwm cov khoom ntim tsis tuaj yeem hloov tau. Cov khoom siv iav batch yog rhuab ntawm qhov kub siab (1550 ~ 1600 degrees) hauv lub pas dej ua ke los yog lub pas dej ua kom sov kom tsim tau cov iav tsis muaj npuas uas ua tau raws li qhov yuav tsum tau ua;

④ Kev tsim, muab cov iav ua kua rau hauv pwm los ua cov khoom iav ntawm cov duab uas xav tau, xws li cov phaj tiaj, ntau yam khoom siv, thiab lwm yam.;

⑤ Kev kho cua sov, los ntawm annealing, quenching thiab lwm yam txheej txheem, ntxuav los yog ua kom muaj kev ntxhov siab sab hauv, kev sib cais los yog crystallization ntawm cov khoom iav, thiab hloov cov txheej txheem ntawm cov iav.