Tom qab ua tiav cov kev sib tsoo ntawm cov khoom siv raw, peb yuav tsum tau ua qhov kev lim dej ua ntej ntawm cov khoom kom tshem tawm cov khoom ntxhib thiab cov xuab zeb zoo los xyuas kom meej qhov zoo ntawm cov khoom siv raw thiab ua kom yooj yim ua kom tiav cov txheej txheem ceramic molding.Feem ntau, lub Hoobkas yuav siv 160-180 mesh lim ntaub los ua cov khoom qub.Kev lim dej ua ntej.Siv 200-250 mesh lim ntaub los lim cov glaze.Txhawm rau muab cov neeg siv khoom zoo dua, peb siv cov ntaub lim dej zoo dua los lim cov ntaub ntawv raw.Piv nrog rau cov ntaub lim dav dav, peb Qhov zoo ntawm kev pom yog nce 20%.Xyuas kom zoo ntawm cov khoom siv raw ntawm cov khoom.

Tom qab ntawd, cov khoom sib nqus ntub dej yog siv los tshem tawm cov hlau impurities.Nyob rau hauv cov txheej txheem ntau lawm ceramic, yog tias cov av nplaum yog doped nrog hlau impurities xws li hlau, cov pob dub yuav tshwm sim ntawm cov khoom raug rho tawm haujlwm, uas yuav txo qhov kev zoo nkauj ntawm cov khoom tom qab kev tsim khoom.Qhov no feem ntau yog Qhov chaw los yog impurities.Peb txo qhov kev faib ua feem ntawm cov hlau impurities hauv cov khoom raw cov ntaub ntawv kom tsawg kawg nkaus los ntawm kev tshem tawm cov hlau impurities ob zaug los xyuas kom meej cov khoom zoo. lim xovxwm, thiab cov dej ntau dhau yog nyem tawm los ntawm lub lim xovxwm kom tig cov slurry rau hauv lub ncuav mog qab zib, uas yog npaj rau cov txheej txheem tom ntej.