Silicon Carbide Refractory Brick
Silicon Carbide Refractory Brick
Silicon Carbide Refractory Brick made of silicon carbide as the main raw material. Silicon carbide content is 72% to 99%. Generally, black silicon carbide (SiC content is more than 96%) is used as raw material, a binder is added (or no binder is added), and it is made through batching, mixing, molding and firing. The main crystal phase is silicon carbide. The main varieties include oxide bonded silicon carbide bricks, carbon bonded silicon carbide bricks, nitride bonded silicon carbide bricks, self-bonded silicon carbide bricks, recrystallized silicon carbide bricks and semi-silicon carbide bricks. It has the characteristics of good wear resistance, corrosion resistance, high high temperature strength, good thermal shock stability, high thermal conductivity, small thermal expansion coefficient, etc. It is a high-performance refractory material.
ltem | Oxide Bond SiC Brick | Color SiC Brick | Corundum Silicon Carbide Brick | Mullite Silicon Carbide Brick | High Alumina SiC Brick |
SiC (% ≥) | 90 | 90 | 70 | 65 | 20 |
Al2O3 (% ≥) | / | / | / | 20 | 55 |
Fe2O3 (% ≤) | 0.6 | 0.6 | 1.0 | 1.0 | 1.5 |
Bulk Density (g/cm³ ≥) | 2.6 | 2.6 | 2.7 | 2.3 | 2.5 |
Apparent Porosity (% ≤) | 17 | 17 | 22 | 20 | 20 |
Cold Crushing Strength (MPa ≥) | 100 | 100 | 100 | 80 | 80 |
Refractoriness Under Load (℃≥, 0.2MPa, 0.6%) | 1650 | 1650 | 1700 | 1600 | 1600 |
Features
1.Good abrasion Resistant.
2.Good Strength at High Temperature.
3.Good Thermal Shock Resistance.
4.Small Thermal Expansion Rate.
Application
Silicon carbide bricks have high thermal conductivity and good wear resistance, thermal shock resistance and corrosion resistance. Therefore, silicon carbide bricks are widely used in industry. Can be used in metallurgical steel drum linings, nozzles, plugs, blast furnace bottoms and bosses, water-cooled slide rails in heating furnaces; non-ferrous metal smelting stills, distillation tower trays, side walls of electrolyzers, smelting metal crucibles; silica acid Shelf boards and flameproof materials for salt industry kilns; oil and gas generators and organic waste combustion furnaces in the chemical industry; kiln furniture for high-tech ceramics, aluminum electrolytic cell linings, molten aluminum conduits, and kiln furniture for ceramic kilns, large and medium-sized blast furnaces Lower body, furnace waist and belly, aluminum refining furnace lining, zinc distillation tank lining, etc.
