The Advantages Of Chrome Corundum Brick

By Author: Julia Cheng
Total Articles: 11
Comment this article

In use, the scouring resistance, wear resistance, resistance to flake

structure, has been in metallurgy, glass, carbon black and the

petrochemical industry, has obtained the good using effect. Chromium

corundum brick raw material is used by the ratio of alumina and chromium

oxide according to certain proportion, go through high temperature

melting synthesis of a solid solution. Using special refractory

production technology made of refractory brick, can improve internal

quality of the product, improve the high temperature performance of

products.

1. The refractory properties of chrome corundum brick

In high purity corundum material add Cr2O3, no matter how much the

amount, not only will not reduce the fire performance of materials，can

make refractory performance of material improved.

2. The strength of chrome corundum brick

Compressive strength of high purity corundum brick at room temperature is

70 ~ 100 MPa commonly, room temperature compressive strength of high

performance chromium corundum brick ...
... is generally larger 150 MPa, the

intensity is significantly higher than the corundum brick. This is

because the products in the process of burning, between particles and

fine powder, between powder and powder are formed Al2O3 - Cr2O3 solid

solution, calcium solid solution like bridge connect fine powder with

particles together, make the strength of the material is greatly

increased.

3. Thermal shock resistance

Add Cr2O3 in corundum, when Cr2O3 content is 10% ~ 66%, material of

thermal shock resistance decreased with increasing content of Cr2O3,

namely the Cr2O3 content low chrome corundum brick, the thermal shock

stability is better than Cr2O3 content high chrome corundum brick.

4. Application

For use in the iron and steel industry, chrome corundum brick material is

above double longer than service life extended of corundum material, such

as ladle air brick, etc. For use in nonferrous smelting industry, the

wear resistance and erosion resistance of chrome corundum brick is

superior to other bricks.