The Performance and Application of Chrome Corundum Brick
Date:2016-11-04 17:06 From:Zhengzhou Sunrise Refractory Author:admin
The performance and application of chrome corundum brick
Fire resistance of the products
Add Cr2O3 to high purity corundum material, no matter how much the amount is, not only will not reduce refractory performance of materials, on the contrary make fireproof
performance of materials improved. The refractoriness of chrome corundum brick (> 1790!) and refractoriness under load (> 1700!) are superior to high purity corundum products.
1. The strength of the products
Room temperature compressive strength of high purity corundum brick is 70 ~ 100 MPa commonly, room temperature compressive strength of high performance chrome
corundum brick is generally more than 150 MPa, the intensity is significantly higher than the corundum brick. This is because the products in the process of burning, between
particles and particles, particles and fine powder, powder and powder, formed Al2O3 - Cr2O3 solid solution, the solid solution connects particles to fine powder particles together,
make the strength of the material is greatly increased.
2. Thermal shock resistance
Add Cr2O3 to corundum, when Cr2O3 content is 10% ~ 66%. The raw materials that Chrome corundum series of products used is made from alumina and chromium oxide
according to certain proportion matching, after high temperature melting synthesis of a solid solution. Using special refractory materials production technology to produce
refractory brick, can improve and enhance internal quality of the products, improve the high temperature performance of products, have the characteristics of high refractoriness,
big strength, good thermal shock stability, strong ability to resist erosion, in use, scour resistance, wear resistance, erosion resistance, spalling structure resistance, have
obtained the good effect in metallurgy, glass, carbon black, the petrochemical industry.
Fire resistance of the products
Add Cr2O3 to high purity corundum material, no matter how much the amount is, not only will not reduce refractory performance of materials, on the contrary make fireproof
performance of materials improved. The refractoriness of chrome corundum brick (> 1790!) and refractoriness under load (> 1700!) are superior to high purity corundum products.
1. The strength of the products
Room temperature compressive strength of high purity corundum brick is 70 ~ 100 MPa commonly, room temperature compressive strength of high performance chrome
corundum brick is generally more than 150 MPa, the intensity is significantly higher than the corundum brick. This is because the products in the process of burning, between
particles and particles, particles and fine powder, powder and powder, formed Al2O3 - Cr2O3 solid solution, the solid solution connects particles to fine powder particles together,
make the strength of the material is greatly increased.
2. Thermal shock resistance
Add Cr2O3 to corundum, when Cr2O3 content is 10% ~ 66%. The raw materials that Chrome corundum series of products used is made from alumina and chromium oxide
according to certain proportion matching, after high temperature melting synthesis of a solid solution. Using special refractory materials production technology to produce
refractory brick, can improve and enhance internal quality of the products, improve the high temperature performance of products, have the characteristics of high refractoriness,
big strength, good thermal shock stability, strong ability to resist erosion, in use, scour resistance, wear resistance, erosion resistance, spalling structure resistance, have
obtained the good effect in metallurgy, glass, carbon black, the petrochemical industry.