Txhawm rau txhim kho qhov zoo ntawm rwb thaiv tsev refractory cib khoom tsim los ntawm cov txheej txheem burnt tawm, noj cov txheej txheem rwb thaiv tsev av nplaum ua piv txwv, cov kev ntsuas uas tuaj yeem ua tau feem ntau suav nrog cov hauv qab no:
(1) Kev xaiv cov khoom siv rwb thaiv tsev av nplaum yuav tsum xav txog lawv cov kev sib txuas ua haujlwm, plasticity, thiab firing shrinkage, thiab xyuam xim kom muaj hluav taws txaus. Cov khoom ntawm siliceous los yog siab alumina av nplaum refractory cov ntaub ntawv sib txawv, thiab ob peb hom av nplaum nrog cov khoom sib txawv tuaj yeem sib xyaw ua ke los ua kom muaj zog thiab tsis muaj zog.
(2) Ntau txoj hauv kev tuaj yeem siv los txhim kho cov khoom sib txuas ntawm cov av nplaum thiab cov yas ntawm refractory cib blanks. Xws li kev sib tsoo zoo, huab cua, av nkos, ntxiv electrolytes lossis khi, thiab lwm yam.
(3) Ntxiv cov yas yas, xws li inorganic lossis organic tshuaj xws li bentonite.
(4) Cov khoom ntawm combustible additives yuav tsum tsis txhob zoo heev. Ntau hom additives muaj cov duab sib txawv thiab cov khoom, thiab lawv cov kev ua tau zoo hauv kev npaj rwb thaiv tsev refractory bricks kuj txawv. Kev xaiv ntawm particle loj yuav tsum sib txawv, thiab ntau yam additives tuaj yeem sib xyaw thiab siv.
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