Fused cast corundum brick refers to corundum refractory brick products made by the fused casting method, with corundum as the main crystal phase. Including α-Al2O3, β-Al2O3 and α, β-Al2O3 three different crystal phases of corundum refractory brick products. Among them, β-Al2O3 fused cast brick, namely Na2O·(11-12)Al2O3, contains about 5% Na2O.

Fused cast brick is a kind of refractory product that melts mixed raw materials at high temperatures and then casts into a certain shape. Fused cast bricks are composed of α-Al2O3 and β-Al2O3 crystal phases. Fused cast brick has strong resistance to slag and glass liquid. Mainly used in the most eroded and eroded parts such as the melting pool in the glass melting furnace.

Performance Characteristics of Fused Cast Corundum Brick

Fused cast corundum bricks have good high-temperature volume stability and corrosion resistance. The structure of α-Al2O3 fused cast bricks is dense and has a certain ability to resist the erosion of glass melt and erosion resistance. β-Al2O3 fused cast bricks contain almost no glass phase, basically no shrinkage holes, good thermal shock resistance, and high-temperature resistance to alkali vapor stability.

α-Al2O3 fused cast brick has the characteristics of both α-Al2O3 and β-Al2O3 fused cast brick. The main crystal phase is directly combined, and the composition contains only a small amount of glass phase. The crystal structure is dense, the porosity is low, the high-temperature wear resistance is good, and the mechanical strength is high. It also has good high-temperature alkali vapor stability.

The Use of Fused Cast Corundum Brick

β-Al2O3 fused cast brick is suitable for the upper structure of the working tank of a glass melting furnace. The burner at the rear of the melting zone and its nearby chest wall, small furnace level, and other parts.

The composition of α, β-Al2O3 fused cast bricks contains only a small amount of glass phase, which will not ooze out and pollute the glass melt during use. It is an ideal furnace-building material for the pool wall, kiln bottom, and float glass kiln flow channel in the cooling part of the glass melting furnace. Fused cast corundum bricks are used together with fused cast zirconium corundum materials.

Rongsheng Refractory Supplier

Rongsheng Refractory Manufacturer produces and sells various refractory products. Rongsheng newly builds a fully automatic refractory castable production line with an annual production capacity of 80,000 tons. In addition, Rongsheng’s refractory materials products have been sold to more than 60 countries and regions around the world. Rongsheng’s high-alumina bricks, kinds of refractory castables, fused cast azs block, and customized refractory materials have won the trust of our customers. Purchase refractory products, please send us an email. Email: sales@hy-refractory.com .