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
Пункт | Bonding Type | |||||||
Гліна | Mullite | SiO2 | Si3N4 | Sialon | β-SiC | R-SiC | Siliconizing reaction | |
SiC % | >85 | >70 | ≥90 | ≥72 | ≥71 | ≥94 | ≥99 | ≥80 |
Si3N4 % | / | / | / | ≥20 | / | / | / | / |
Ал2О3 % | / | / | / | / | ≥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 |
Бачная сітаватасць % | ≤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
- Ўстойлівасць да карозіі
- Slightly large
- Добрая цеплаправоднасць
- 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, г.д. - 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
Прадстаўленне кампаніі Rongsheng
Rongsheng Company is a professional supplier of вогнетрывалыя матэрыялы, with 10 шматгадовы вопыт экспарту, exporting to more than 80 краіны. Асноўная прадукцыя кампаніі Rongsheng ўключае розныя вогнетрывалыя цэглу, нефасонных вогнетрывалых матэрыялаў, металургічныя матэрыялы, цеплаізаляцыйныя матэрыялы, і гэтак далей.
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