The main content of silicon carbide bricks is SIC, and its content reaches 72%-99%. Silicon carbide refractory bricks can be combined with clay, oxide, and silicon nitride in different ways. The characteristics of its response and the industry of application are also different.
Silicon carbide brick
Tétel | Bonding Type | |||||||
Agyag | Mullite | SiO2 | Si3N4 | Sialon | β-SiC | R-SiC | Siliconizing reaction | |
Sic % | >85 | >70 | ≥90 | ≥72 | ≥71 | ≥94 | ≥99 | ≥80 |
Si3N4 % | / | / | / | ≥20 | / | / | / | / |
Al2O3 % | / | / | / | / | ≥5 | / | / | / |
Si % | / | / | / | / | ≥5.5(N) | / | / | 12~18 |
Bulk Density g/cm3 | 2.5~2.6 | 2.55~2.65 | 2.6~2.7 | ≥2.65 | ≥2.65 | ≥2.63 | ≥2.65 | ≥3,0 |
Látszólagos porozitás % | ≤20 | ≤16 | ≤15 | ≤16 | ≤16 | ≤17 | ≤15 | ≤0,5 |
Flexural strength at room temperature MPa | ≥20 | ≥25 | ≥25 | ≥45 | ≥45 | ≥30 | ≥90 | ≥220 |
Flexural strength at high temperature MPa 1400℃ | / | / | / | ≥45 | ≥45 | ≥30 | ≥90 | ≥240 |
Cold Crushing strength MPa | ≥100 | ≥100 | ≥120 | ≥160 | ≥150 | ≥140 | ≥300 | ≥800 |
Features of silicon carbide bricks
- Korrozióállóság
- Slightly large
- Jó hővezető képesség
- Strong impact resistance
- Low thermal expansion coefficient is a high-quality high-temperature resistant material
Types of silicon carbide bricks
Classification by combination method
Silicon carbide refractory bricks can be divided into clay-bonded silicon carbide bricks, β-silicon carbide bonded silicon carbide bricks, silicon oxynitride bonded silicon carbide bricks, silicon nitride bonded silicon carbide bricks, and Sialon bonded silicon carbide bricks according to different bonding methods.
Classification by chemical content
According to the different contents of chemical components, silicon carbide bricks are mainly divided into oxide-bonded silicon carbide bricks, green silicon carbide bricks, corundum silicon carbide bricks, mullite silicon carbide bricks, and high alumina silicon carbide bricks.
Application of silicon carbide brick
- Used in the metallurgical industry
The metallurgical industry mainly uses aluminum melting furnaces for aluminum alloy smelting, secondary tuyere bricks for blast furnaces, stb. - Used in the power industry
In the power industry, it is mainly used in boilers and is set at the nozzle of the boiler combustion chamber. - Used in the waste disposal industry
Silicon carbide bricks can also be used in waste incinerators
Rongsheng cég bemutatkozása
Rongsheng Company is a professional supplier of tűzálló anyagok, val vel 10 éves export tapasztalattal, exportál több mint 80 országok. A Rongsheng Company fő termékei közé tartoznak a különböző tűzálló téglák, formálatlan tűzálló anyagok, kohászati anyagok, hőszigetelő anyagok, stb.
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