1) khaub ncaws hmoov, ntxuav tes ntxuav, hmoov hmoov thiab lwm yam khoom lag luam, feem ntau yog cov hmoov nyoos. Soda tshauv, sodium sulfate, sodium silicate thiab lwm yam khoom siv nws tus kheej yog qhuav, kev khaws cia yuav tsum tau txias thiab qhuav, yog qhov yooj yim rau ntub. Xws li tshauv tshauv, cov npe: muaj sodium carbonate; lub luag haujlwm: ua kom tsis muaj kab mob hauv lub cev; txoj hauv kev txheeb xyuas: hmoov dawb, xav ntxhib, yooj yim nqus dej, dej sov; hauv qee qhov chaw tuaj yeem siv ua desiccant. Tam sim no, ntau cov khoom siv tshuaj ntxhua khaub ncaws hauv khw yog sib xyaw cov khoom sib xyaw, yuav cov khoom ib nrab, thiab tom qab ntawd ob qho sib xyaw ua kom sib xyaw molding. Qee cov chaw tsim khoom siv cov khoom siv tshuaj tsuag ntau ntau txog 20 metres thiab siab dua ntau dua 300 degrees siab thiab nqis peev ntau dua 800 txhiab, yog li lawv tuaj yeem ua tus nqi qis thiab muaj txiaj ntsig zoo hauv tsev ntxuav hmoov. Kev tsim cov khaub ncaws hmoov tuaj yeem tsuas yog ua los ntawm kev siv ntau lub tshuab txau txau cov hmoov txhuam kom txog li ntau dua 20 meters thiab qhov kub siab tshaj 300 degrees, thiab nqis peev ntau dua 800 txhiab, thiab tom qab ntawd peb tuaj yeem ua tus nqi qis thiab zoo hauv tsev hmoov ntxuav hmoov.
2) ntxuav cov kua,xab npum, tsuaj zawv plaub hau, da dej gel, ntxuav tes ua kua thiab lwm yam, txhua tus yog cov xab npum, cov khoom siv raw (surfactant) suav txog 10-20% ntawm cov khoom, thiab feem ntau ntawm cov seem yog 80-90% dej. Kev tsim ntau yam khoom tsim khoom lag luam ntawm kev ua lag luam tau tso siab rau sab nraud cov tshuab ua kom yooj yim cov cuab yeej molding, cov khoom sib xyaw yooj yim molding tsis xws luag yog cov khoom tsuas yog tawg ib ntus xwb, cov ntaub ntawv raw tsis mus txog qhov tawg tag thiab emulsification, cov khoom lag luam tau yooj yim los tsim delamination, sedimentation, metamorphism thiab stank tshwm sim.
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