Qhov zoo thiab qhov tsis zoo ntawm fused dawb steel jade thiab fused xim av corundum:

corundum-raws li refractory raw khoom ua los ntawm fused corundum fused txoj kev muaj cov ntsiab lus siab ntawm alumina. Cov nplej corundum ua tiav thiab ntxhib. Cov tshuaj lom neeg ruaj khov, qib siab alumina lossis high-alumina clinker yog siv los ua cov khoom siv los yaj hauv arc Shanghai, tshem tawm cov khoom seem, thiab txias cov frit. Muaj ob hom loj ntawm fused xim av corundum thiab fused dawb corundum. Thaum siab alumina bauxite yog siv los tsim cov xim av corundum, siab alumina bauxite yuav tsum tau ua ntej raug rho tawm haujlwm ua ntej electrofusion kom tshem tawm cov dej adsorbed thiab cov dej hauv nws kom ceev cov txheej txheem electrofusion thiab txo lub zog noj. Txhawm rau kom txo qis cov txheej txheem fusion thiab tshem tawm cov impurities zoo, nws yog ib qho tsim nyog yuav tsum tau ntxiv qhov tsim nyog ntawm anthracite thiab hlau hmoov rau cov khoom siv raw. Thaum alumina tsim cov corundum dawb, vim yog cov purity siab ntawm cov ntaub ntawv raw, tsis tas yuav siv cov kev txo qis kom cais cov impurities. Cov ntsiab lus alumina ntawm fused xim av fused alumina yog ntau dua 90%, thiab cov ntsiab lus alumina ntawm dawb fused alumina yog ntau dua 98%. Kev ua tau zoo ntawm fused corundum yog qhov pib zoo ib yam li ntawm sintered alumina, tab sis qee qhov fused corundum muaj qhov pom tseeb dua qhov porosity.