High alumina brick for glass kiln
The main components of high alumina bricks are SiO2 and Al2O3, but the alumina content should be greater than 46%. It is made from corundum, bauxite or sillimanite series minerals (Al2O3-SiO2). The density is 2.3～3.0g/cm3, the apparent porosity is about 18%～23%, and the maximum use temperature is 1500～1650℃. The lower the porosity of the high alumina brick, the better its corrosion resistance. The pool wall of the cooling section, the vault of the regenerator, and the wall of the regenerator can be built with high-alumina bricks.