Refractory av, tseem hu ua av nplaum refractory av, yog ib hom av siv rau hauv lub qhov cub. Nws yog cov khoom tsis muaj zog acidic refractory nrog zoo thermal stability thiab tsim nyog rau kev tsim cov cua kub cua sov, ntau yam boiler linings, nrog rau cov flue thiab pa taws chamber.
Refractory cement yog cov khoom siv los tsim cov khoom siv hluav taws xob, nrog cov hluav taws kub tsis tsawg tshaj 1580 degree C. Raws li lawv muaj pes tsawg leeg, lawv tuaj yeem muab faib ua aluminate cement, calcium aluminate tsawg, calcium magnesium aluminate, thiab dolomite. Yog tias cov cement refractory siv ib leeg, ntau cov kab nrib pleb yuav tshwm sim tom qab qhov kub thiab txias, thiab qhov no yuav tsum tau sau tseg.
Refractory cement thiab refractory av yog ob hom khoom siv refractory. Refractory cement muaj qhov hluav taws kub tsis kam ntawm 1300 degrees thiab muaj lub zog siab tom qab teeb tsa, nrog qib ntawm 625. Nws yog tsuas yog tov nrog bauxite aggregates los nruab refractory pob zeb uas muaj hluav taws kub. Refractory av muaj qhov hluav taws kub tsis kam ntawm 1000 degrees thiab tsis muaj zog tom qab teeb tsa, tsuas yog muab qee yam kev sib txuas. Refractory av feem ntau yog siv los tsim cov cib refractory los yog pasting rauv phab ntsa.
Yog tias refractory cement thiab refractory av siv ua ke, tus nqi ntawm cov cement refractory yuav me me, ib yam li sib xyaw refractory cement thiab loess rau rov siv dua, qhov teeb tsa lub zog thiab qib ntawm cov cement refractory yuav txo qis heev.
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