Hnav-resistant refractory cov khoom siv

Cov khoom siv-resistant thiab refractory ramming siv al2o3, 88% ntawm kev sib sau ua ke thiab cov hmoov ntau, thiab ntxiv cov av nplaum ua kom zoo li cov yas ua kom yooj yim; Cov khoom siv txhuas-zirconium rammering siv al2o3 raws li kev sib sau ua ke thiab hmoov, ntxiv rau zircon hmoov thiab coke av nkos nrog zro2 li 64%; Qhov tseem ceeb tshaj plaws me me yog 5 hli, thiab plaub-theem theem kev hloov kho yog siv; Phosphate yog siv los ua phau ntawv: Qhov ntau npaum yog 8% {14}}}}%, thiab cov hlau sib xyaw.

Nyob rau hauv cov hnav-resistant thiab refractory cov khoom siv, ntxiv corundum hmoov los txhim kho qib matrix tuaj yeem txhim kho nws cov kev ua tau zoo. Lub siab-alumina refract cov khoom siv sib xyaw nrog zircon hmoov muaj kev kub ntxhov ntawm 1670 degree vim 1540 degree vim yog impurities nyob rau hauv zircon, thiab decomposes rau ZR2O3 thiab Sio2. Cov ntaub ntawv qub Baddeleyite ntawm qhov kub thiab txias, thiab cov ntawv tom kawg mullite nrog al2o3. Ob qho kev txhim kho ob qho no cuam tshuam nrog Corundum lossis Mullite, ntxiv dag zog rau tus txheej txheem qauv, thiab txhim kho lub zog thiab corrosion tsis kam. Nyob rau tib lub sijhawm, vim tias cov nyhuv ntim, cov khoom tawg yog them nyiaj ntsuab thiab cov khoom siv tawm tsam yog txhim kho; Nyob rau hauv cov hnav-resistant refaction cov khoom siv, kyanite tsev neeg muaj peev xwm tseem tuaj yeem ntxiv. Nrog kev pab los ntawm kev kub ntxhov thiab tsim ntawm mullite, lub ntim nthuav tawm cov nyhuv yog tsim los ntawm lub ntim shrinkage ntawm cov khoom siv sib txawv, uas yog qhov zoo rau kev txhim kho ntawm kev ua tau zoo. Cov qib ntawm Kyanite tsev neeg muaj txiaj ntsig tau muaj kev ua tau zoo ntawm cov ntaub ntawv ntawm cov ntaub ntawv ntawm kev ua kom tau ntau dua, yog li lawv yuav tsum tau ntxiv nrog lawv cov kev xav, thiab ntau npaum li cas yog feem ntau 15 ~ 35%. Refractory aggregate thiab hmoov yog tsim los ntawm theem nrab clinker, nrog kev sib cav ntau ntawm 1: 1, kev daws teeb meem dej nrog cov kev nqus dej ntawm 1.38 ua cov phau ntawv.