The use temperature of wear-resistant castables is generally around 1350-1400ºC. If you want to increase the use temperature, you can use alumina cement and adjust the particle gradation. The product also has good properties such as acidity and alkalinity of antibiotics, without cracking after burning.
1. Castable for iron making system
In the iron-making system, there are many refractory castables used in the blast furnace ditch, and ASC refractory castables are generally used. ASC castables are generally low cement or ultra-low cement castables, which are mainly composed of alumina aggregate, SiC, carbon, cement and various additives.
2. Castable for hot metal pretreatment
The application of refractory castables in the ladle is mainly in the furnace bottom and molten pool. The slag line is made of aluminum silicon carbide carbon castables; the spray gun is an important device for hot metal pretreatment. From the middle and late 1980s in China, the spray gun refractory gradually Developed as a castable integral footnote spray gun, its material is mainly alumina-silica. The integral spray gun made of the casting material has the characteristics of uniform organization, no joints, good thermal shock resistance and long service life.
3. Castable for electric furnace steel making
The application of refractory castables in electric furnaces is mainly concentrated in the furnace cover parts. In the late 1990s, the full water-cooled furnace roof technology was widely used, and the overall precasting technology of castables was generally used in the electrode triangle area. Taken together, the overall castable furnace cover may become a trend for electric furnace cover materials in the future.
