Qhov ratio ntawm hlau nyob rau hauvsiab alumina cibmuaj kev cuam tshuam loj rau lawv qhov kev ua tau zoo tag nrho. Tshwj xeeb, hlau muaj nyob rau hauv daim ntawv ntawm oxides nyob rau hauv high-alumina cib. Cov oxides no yog ib qho yooj yim los tsim cov theem qis-melting kua nyob rau hauv qhov kub thiab txias, uas txo cov refractory zog ntawm high-alumina cib. Qhov tseem ceeb tshaj plaws, cov hlau tsis tshua muaj zog hauv qhov kub thiab txias thiab yooj yim rau cov tshuaj lom neeg nrog rau lwm cov khoom. Qhov kev cuam tshuam no yuav hloov pauv qhov microstructure sab hauv ntawm high-alumina cib, uas ua rau txo qis hauv lawv lub zog kub.
Tsis tas li ntawd, cov ntsiab lus hlau siab kuj tseem yuav coj tau lwm qhov teeb meem uas tsis tuaj yeem tsis quav ntsej - qhov nce hauv thermal conductivity. High thermal conductivity txhais tau tias hloov mus rau lub tshav kub sai dua, uas yuav tsis tsuas ua rau lub zog rwb thaiv tsev ntawm high aluminium refractory bricks, tab sis kuj yuav cuam tshuam rau lub zog siv efficiency, zoo heev txo qhov zoo ntawm high-alumina cib nyob rau hauv lub zog txuag. Yog li ntawd, nyob rau hauv kev tsim thiab kev npaj ntawm high-alumina bricks, kev tswj cov ntsiab lus ntawm impurities xws li hlau nyob rau hauv cov ntaub ntawv raw yog nruj tshwj xeeb.
Hauv kev ua haujlwm tiag tiag, siab alumina cib nrog cov ntsiab lus txhuas sib txawv muaj cov kev xav tau sib txawv rau cov ntsiab lus hlau. Piv txwv li, rau high-alumina cib nrog 48% txhuas cov ntsiab lus, 60% ntawm raw cov ntaub ntawv yog high-alumina clinker, thiab cov ntsiab lus hlau yuav tsum tau nruj me ntsis tswj nyob rau hauv 3.0%; Thaum lub siab alumina refractory cib nrog 55% txhuas cov ntsiab lus, qhov feem ntawm high-alumina clinker nyob rau hauv cov ntaub ntawv raw nce mus rau 65%, thiab cov ntsiab lus hlau yuav tsum tau txo kom tsawg dua 2.5%. Los ntawm kev sib piv, rau high-alumina bricks nrog 65%, 75% thiab txawm 80% txhuas cov ntsiab lus, qhov feem ntawm high-alumina clinker nyob rau hauv cov ntaub ntawv raw thiab cov yuav tsum tau rau cov ntsiab lus hlau kuj qhia ib tug sib piv kev poob. Rau qib siab tshaj plaws ntawm 80% txhuas cov ntsiab lus siab-alumina cib, cov ntsiab lus hlau yuav tsum tau tswj nruj me ntsis hauv 1.5%. Cov txheej txheem ntawm kev tswj hwm nruj no tsis ntseeg tau hais txog qhov tseem ceeb ntawm cov ntsiab lus hlau rau qhov zoo ntawm high-alumina cib.
Yog li, yuav ua li cas tswj cov ntsiab lus hlau hauv siab alumina cib? Qhov no yuav tsum muaj kev tswj hwm nruj los ntawm qhov chaw ntawm cov khoom siv raw thiab kev txhim kho txuas ntxiv hauv cov txheej txheem ntau lawm. Cov khoom lag luam raw khoom feem ntau siv cov thev naus laus zis xws li hnav khaub ncaws ore, purification, thiab tshem tawm hlau los xyuas kom meej tias qhov feem ntawm cov hlau hauv cov ntaub ntawv raw ua tau raws li qhov yuav tsum tau ua rau cov khoom siv high-alumina cib ntawm qib sib txawv. Hauv cov txheej txheem tsim khoom, kev tswj xyuas meej ntawm cov khoom siv raw piv kuj tseem ceeb heev, uas tuaj yeem tsis tsuas yog txo cov ntsiab lus hlau hauv high-alumina bricks, tab sis kuj yog tus yuam sij rau kev txhim kho tag nrho cov zoo ntawm high-alumina cib. Ib yam li ntawd, lub tswv yim no kuj tseem siv tau rau kev tsim khoom thiab kev npaj ntawm lwm cov ntaub ntawv refractory, uas muaj qhov tseem ceeb tshaj plaws rau kev txhim kho qib ntau lawm thiab cov khoom zoo ntawm tag nrho cov kev lag luam.
