Silicon Carbide Castable

Silicon carbide castable is a refractory castable made from silicon carbide, graphite, and anthracite. It is composed of silicon carbide powder as the main refractory raw material, along with binders and additives. It possesses high temperature resistance, high strength, and high wear resistance.
Silicon carbide castable refractory materials exhibit excellent wear resistance, corrosion resistance, spalling resistance, erosion resistance, and slagging resistance.

一.Physical And Chemical Indicator of Silicon Carbide Castable

二.What are the advantages of silicon carbide castables?

1. The higher the SiC content, the better the alkali resistance. 2. The silicon carbide in silicon carbide castables is particularly advantageous at high temperatures (1100℃).

3. Partial gaps are created around the SiC particles to improve the thermal shock resistance and strength of the refractory castable.

4. Important chemical properties of silicon carbide include oxidation resistance, corrosion resistance, and reactivity. When heated to 1000℃, the surface of SiC is oxidized and forms a SiC₂ film. This film hinders oxygen diffusion, delays the oxidation rate, protects the silicon carbide covered by the film, and improves the service life of the silicon carbide material.

5. Due to the SIC matrix, silicon carbide is wear-resistant and has high hardness.

6. Due to its high hardness, conductivity, high temperature resistance, and high strength, silicon carbide is widely used in abrasives, heating elements, structural ceramics, and refractory materials.

三.It is suitable for easily scaling parts such as the discharge chute, rising flue, decomposition furnace cone, combustion chamber, and the cone section and discharge pipe of the fourth and fifth stage preheaters in large and medium-sized new dry-process cement kilns. Silicon carbide castables mainly use silicon carbide as the main raw material, adding high-efficiency water-reducing agents and ultrafine powders, and using pure calcium aluminate cement as a binder, which can significantly reduce scaling.