Isitini se-alumina esiphezulu ( T-19)

Uma okuqukethwe kwe-Al2O3 kungaphezulu kuka-90%, kubizwa nge-corundum brick. Ngenxa yezinsiza ezahlukene, izindinganiso zamazwe ahlukahlukene azihambisani ngokuphelele. Isibonelo, amazwe aseYurophu abeka ukuthi umkhawulo ophansi we-Al2O3 okuqukethwe kwe-high-alumina refractories ngu-42%. E-China, izitini eziphakeme ze-alumina ngokuvamile zibhekisela ezitini eziphikisayo ezinokuqukethwe kwe-Al2O3 okungaphezu kuka-48%. Ikakhulukazi zenziwe nge-bauxite yemvelo yezinga eliphezulu, equkethe amaminerali afana ne-diaspore, i-bomerite, i-kaolinite, njll. Ubumba oluthambile noma oluncane oluthambile lwengezwa ku-clinker ye-alumina ephezulu njenge-binder ukuze kuqale ukuxutshwa nokuxutshwa, bese iyakhiwa, yomiswe, futhi ekugcineni ixoshwe. I-refractoriness yezitini eziphakeme ze-alumina cishe i-1770 ℃, futhi izinga lokushisa lokuthambisa umthwalo liyi-1420 ℃-1550 ℃. Izitini ezivamile ze-alumina ezivamile ziyi-LZ-80, LZ-75, LZ-65, LZ-55, LZ-48, njll. Isetshenziselwa ikakhulukazi ulwelwesi lwesithando somlilo, isithando somlilo esishisayo, isithando somlilo se-ore-heat, uphahla lwesithando sikagesi, ukuqhuma. isithando somlilo, isithando somlilo esiphendulayo kanye nohhavini ojikelezayo. Ngaphezu kwalokho, izitini eziphakeme ze-alumina nazo zisetshenziswa kabanzi njengezitini zokuhlola isitoreji sokushisa esivulekile, amapulaki okuthela amasistimu, izitini ze-nozzle, njll.