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Product introduction of silicon carbide brick
Silicon carbide brick is a refractory material made of SiC as the main raw material. Silicon carbide content 72% ~ 99%. General selection of black silicon carbide (SiC content more than 96%) as raw materials, adding binder (or not), through the batching, mixing, molding and sintering process.
Features of silicon carbide brick
Silicon carbide brick has high strength at room temperature and high temperature, high thermal conductivity, low linear expansion coefficient, good thermal shock resistance, high temperature wear resistance, strong chemical erosion resistance and other properties.
Application of silicon carbide brick
Silicon carbide bricks are widely used in iron and steel, non-ferrous metallurgy, ceramics, chemistry, power and aerospace and other industrial fields. At the same time can be used for metallurgical steel cylinder lining, water mouth, plug head, blast furnace bottom and furnace belly, etc.
Parameters of silicon carbide brick
| ltem | Oxide bond SiC brick | Green 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 |