Regarding the characteristics and application scope of recrystallized silicon carbide micro powder, the surface is smooth, the shape is good, the particle size distribution is concentrated, and it is easy to infiltrate. The produced products such as recrystallized silicon carbide rapid cooling air pipes, protective pipes, and boxes are widely used in chemical, metallurgical, wear-resistant industries, ceramics, industrial high-temperature kilns, as well as the use of silicon carbide powder in abrasive industries and metallurgical deoxidizers.