The Characteristics of Sunrise Refractory Chrome Corundum Brick for Sale

I believe, in this industry, We all have a certain understanding of chrome corundum bricks. So, in here, I will focus on the characteristics of sunrise refractory chrome corundum brick for sale:

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. Thermal Shock Resistance.

Add Cr2O3 into the corundum, when the Cr2O3 content is about 10~66%, the material’s thermal shock resistance will reduce with the Cr2O3 content’s increase. That is, when the Chrome Corundum Brick with low Cr2O3 content, its thermal shock resistance is better than the Chrome Corundum Brick with higher Cr2O3 content.

 

5. Slag Erosion Resistance.

The solubility of Cr2O3 in the coal gasifier slag (SiO2~CaO) and all kinds of glass melt is much smaller than other oxides materials. So Cr2O3 or refractory materials with Cr2O3 has good corrosion resistance to steel slag, nonferrous metallurgy slag, coal gasifier slag and all kinds of glass melt. Liquid viscosity formed by Cr2O3 melt or Cr2O3 reacting with furnace slag is higher than other low melting materials’, which prevent that the molten slag infiltrate into brick interior along with the capillary pore and avoid the structure spalling caused of forming metamorphic layer.