A. Refractoriness
Refractoriness ntawm siab alumina cib yog siab dua li cov hluav taws kub av nplaum cib thiab silica cib, nws tuaj yeem ncav cuag 1750 ~ 1790 degree. High alumina bricks yog qib siab refractories.
B. Refractoriness nyob rau hauv load
Al2O3 cov ntsiab lus ntawm cov alumina cib siab yog siab.With tsawg impurities, tsawg tsawg smelting point iav theem yog suav nrog, yog li refractoriness nyob rau hauv load rau siab alumina bricks yog siab tshaj li ntawm hluav taws kub av nplaum cib. Lub caij no, net qauv ntawm mullite theem tsis zoo tsim nyob rau hauv lub siab alumina cib, yog li nws qis dua li ntawm silica cib.
C. Slag kuj
Vim muaj Al2O3 cov ntsiab lus siab, lub siab alumina cib yog yuav luag nruab nrab refractories, yog li nws muaj zoo alkali thiab acid slag kuj.
