Introduction of Fused Cast AZS Brick

The Fused Cast AZS Bricks consists of eutectoids and glassy phases of corundum and zirconium aragonite. From the phase theory, it is the eutectoid of the corundum and zirconium phases, and the glass phase is filled between their crystals.

The Fused Cast AZS Bricks, also known as fused zirconia corundum brick, is AZS. It is based on the three chemical components of the Al2O3-Zr02-Sio2 ternary phase diagram, arranged in order of their contents, Al2O3 takes A, Zr02 takes Z, Sio2 take S, the national standard uses this abbreviation, such as No. 33 cast zirconia corundum brick, abbreviated as AZS-33 #, 36 cast zirconia corundum brick, abbreviated as AZS-36 #, 41 cast zirconia corundum brick, abbreviated AZS- 41#.



The Fused Cast AZS Bricks manufacturing process combines the selected zircon sand and industrial alumina powder in a 1:1 ratio, plus a small amount of NaZO (added as sodium carbonate), B20: (added as boric acid or borax) flux, mixed Uniform, after being melted at 1900~2000°C and casted, Zr0233% fused cast bricks can be obtained. On this basis, using partially desiliconized zircon sand as raw material, 36%~41% fused cast bricks containing ZrO2 can be obtained.

Fused zirconia corundum brick is mainly used in the glass industrial tank furnace, glass electric furnace, steel industry slides, brewing alkali industry furnaces and other high temperature resistant erosion resistant kiln refractory materials.