Product description
Chrome brick manufactured by CH Refractories has excellent corrosion resistance, wear resistance, thermal shock resistance, high pressure strength at room temperature, high temperature strength, high fire resistance, high temperature volume stability.
Chrome brick material not only because of the high melting point, has excellent high temperature performance, but also because the electromelting Cr2O3 material itself has excellent slag erosion resistance, in the coal slag solubility is very low (in the refractory oxide is low); Most of the slag has poor wettability to Cr2O3, which delays the dissolution of Cr2O3 in the slag. After Cr2O3 is dissolved into the slag, it will increase the viscosity of the slag, and even form a uniform protective layer on the surface of the material, blocking the porosity of the material, thereby inhibiting the penetration of the slag.
Chrome brick also has excellent resistance to glass corrosion, and it is also used in glass melting kilns, especially in dark bottle glass melting kilns or non-alkali glass fiber melting kilns, mainly used in high temperature parts of glass melting kilns, such as the upper pool wall, small furnace, liquid flow hole, feeding port, etc., which can significantly extend the kiln age of glass melting kilns.
Application
Chrome brick is mainly used in coal water slurry pressurized gasifier and other related reduction atmosphere industrial furnace working lining, has excellent resistance to outside furnace steelmaking slag, non-ferrous smelting slag, coal gasification furnace slag.
Physical and chemical index of chrome brick
|
Item |
High chromium oxide brick |
Medium chrome oxide brick |
chrome corundum brick |
chrome corundum brick |
chrome corundum brick |
|
Cr2O3 % |
≥93 |
≥86 |
≥60 |
≥30 |
≥12 |
|
Al2O3 % |
- |
- |
≤38 |
≤68 |
≤80 |
|
Fe2O3 % |
- |
- |
≤0.2 |
≤0.2 |
≤0.5 |
|
Appearance porosity % |
≤17 |
≤17 |
≤14 |
≤16 |
≤18 |
|
Bulk density g/cm3 |
≥4.3 |
≥4.2 |
≥3.63 |
≥3.53 |
≥3.3 |
|
Cold crushing strength MPa |
≥100 |
≥100 |
≥130 |
≥130 |
≥120 |
|
Refractoriness under load℃(0.2Mpa,0.6%) |
≥1680 |
≥1670 |
≥1700 |
≥1700 |
≥1700 |
|
Linear change on reheating % |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
Packages:
Factory introduction
Zhengzhou Caihua Kiln Masonry Installation Co., Ltd, be called for short of CH Refractories was founded in 1984, have advanced process equipment and raw material preparation system.
A full set of refractories conventional testing equipment, can ensure the quality before sending to customers.
CH Refractories mainly produce refractory materials for metallurgical, coking, cement industry, electric power industry, chemical and general industrial furnaces. Annual production of a variety of shaped and unshaped refractory materials 120,000 tons. The refractory products exported to Middle east, South America, Middle Asia, Southeast Asia, Africa and other regions.
FAQ
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Physical and chemical index of chrome brick
|
Item |
High chromium oxide brick |
Medium chrome oxide brick |
chrome corundum brick |
chrome corundum brick |
chrome corundum brick |
|
Cr2O3 % |
≥93 |
≥86 |
≥60 |
≥30 |
≥12 |
|
Al2O3 % |
- |
- |
≤38 |
≤68 |
≤80 |
|
Fe2O3 % |
- |
- |
≤0.2 |
≤0.2 |
≤0.5 |
|
Appearance porosity % |
≤17 |
≤17 |
≤14 |
≤16 |
≤18 |
|
Bulk density g/cm3 |
≥4.3 |
≥4.2 |
≥3.63 |
≥3.53 |
≥3.3 |
|
Cold crushing strength MPa |
≥100 |
≥100 |
≥130 |
≥130 |
≥120 |
|
Refractoriness under load℃(0.2Mpa,0.6%) |
≥1680 |
≥1670 |
≥1700 |
≥1700 |
≥1700 |
|
Linear change on reheating % |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
