Refractory brick is a special building material, white, light yellow or brown, which can withstand high temperature of 1,580℃-1,770℃. It is widely used in Industrial kilns, various high temperature furnaces, etc. And has the characteristics of high temperature resistance, corrosion resistance, wear resistance, good thermal insulation performance and chemical stability.
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Refractory bricks can remain stable in high temperature environments without softening, deforming or melting, and can usually withstand high temperatures of 1,580℃-1,770℃.
They have chemical corrosion resistance and can remain stable under the corrosion of chemical media such as acids, alkalis, and salts.
They have high surface hardness and good wear resistance.
They have good thermal conductivity and can ensure uniform temperature in the furnace.
| Classification of refractory bricks | ||
| Index | ||
| Silica refractory bricks | SiO2 ≥ 90% | |
| Alumina refractory bricks | AI2O3 ≥ 48% | |
| Magnesia refractory bricks | MgO ≥ 80% | |
| Dolomite refractory bricks | MgO+CaO ≥ 90% | |
| Carbon refractory bricks | ||
| Zirconium refractory bricks | ||
The application products of refractory bricks mainly include:
Steel industry: lining materials for blast furnaces, steelmaking furnaces, electric arc furnaces and other equipment.
Non-ferrous metal industry: linings for aluminum smelting furnaces, zinc distillation furnaces, etc.
Chemical and glass industries: refractory materials used for various reactors, melting furnaces, etc.
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