Amatafari maremare ya alumina (T-19)

Niba ibirimo Al2O3 birenze 90%, byitwa amatafari ya corundum. Bitewe nubutunzi butandukanye, ibipimo byibihugu bitandukanye ntabwo bihuye rwose. Kurugero, ibihugu byu Burayi bivuga ko igipimo cyo hasi cyibintu bya Al2O3 ku ruganda rwinshi rwa alumina ari 42%. Mu Bushinwa, amatafari maremare ya alumina ubusanzwe yerekeza ku matafari yangiritse afite Al2O3 irenga 48%. Byakozwe cyane cyane muri bauxite yo murwego rwohejuru, irimo imyunyu ngugu nka diaspore, bomerite, kaolinite, nibindi. irashingwa, yumye, kandi amaherezo irirukanwa. Kugabanuka kw'amatafari ya alumina yo hejuru ni 1770 and, naho ubushyuhe bwo koroshya imitwaro ni 1420 ℃ -1550 ℃. Amatafari maremare ya alumina ni LZ-80, LZ-75, LZ-65, LZ-55, LZ-48, nibindi. itanura, itanura rya reverberatory hamwe nitanura ryizunguruka. Mubyongeyeho, amatafari maremare ya alumina nayo akoreshwa cyane nkamatafari yo kubika ubushyuhe bwo kubika amashyanyarazi, amacomeka yo gusuka sisitemu, amatafari ya nozzle, nibindi.