- Time:Jul 06, 2023
Refractory castables are special refractory materials used to fill, repair or cover voids or damaged parts in high temperature equipment. Its refractory temperature requirements depend on specific application scenarios and working conditions. The following is a detailed introduction to the refractory temperature requirements of refractory castables:
1. Temperature range: Refractory castables usually need to be used in high temperature environments to withstand the working temperature of furnaces, kilns, ladles and other equipment. Different types of refractory castables have different refractory temperature ranges. Common refractory castables such as high alumina castables, silicate castables, silicon carbide castables, etc. can withstand high temperatures from 1000°C to 1800°C.
2. Composition of refractory materials: The composition of refractory castables directly affects its refractory temperature. Common refractory components include high alumina, graphite, silicon carbide, etc. These materials have high melting points and heat resistance properties, and can maintain structural stability in high temperature environments.
3. Structural compactness: The structural compactness of refractory castables has an impact on its refractory temperature requirements. High density means that there are no or few pores in the material, which can effectively prevent the erosion and penetration of high-temperature gases. This can improve the service life and refractory temperature of the refractory castable.
4. Chemical stability: Refractory castables should have sufficient chemical stability to resist possible erosion with waste gas and slag. Some refractory castables can also maintain stable chemical properties at high temperatures, and are not prone to chemical reactions.
5. Selection of refractory castables: When selecting refractory castables, it is necessary to determine the refractory temperature range according to specific working conditions and design requirements. Considering the safety margin, it is generally recommended to choose a refractory castable that can withstand higher than the actual working temperature.
All in all, the refractory temperature requirements of refractory castables depend on factors such as the working temperature of the application scene, refractory composition, structural compactness and chemical stability. When selecting a refractory castable, it is recommended to consult a professional refractory supplier or engineer for situation-specific advice and guidance.
