We are not unfamiliar with fused bricks, and when it comes to its different classifications, some people cannot distinguish the differences between them. Remember that the classification of zirconia corundum has been introduced in the general introduction, and some parts may not be too comprehensive. , I will make up for two common fused bricks below:

1) Fused Zirconia Corundum Brick

It is also called white iron brick and AZS fused brick. Generally, it is divided into 3 grades of 33%, 36% and 41% according to the content of zirconium. The zirconium corundum bricks used in the glass industry contain 50%-70% AL2O3, 20%-40% ZrO2, density 3.4-4.0 g/cm^3, apparent porosity 1%-10%, the highest The application temperature is about 1700℃, and the fused zirconium corundum bricks with zirconium content of 33% and 36% are used for masonry of kiln pool walls, flame space breast walls, small furnace vents, small furnace flat turrets, small furnace stacks, and tongue bricks. In other places, fused zirconia corundum bricks with 41% zirconium content are used to build the corners of pool walls, liquid holes and other places where the molten glass has the most violent erosion and corrosion of refractory materials. This material is the most widely used fused refractory material in the glass industry.