Castables are refractory materials that are mainly used to provide protection and support in high-temperature environments. The following are the types and uses of castables:
1. Corundum castable: made with corundum as the main raw material and adding an appropriate amount of binder. It is mainly used for high-temperature equipment such as high-temperature kilns, high-temperature pipelines, and blast furnace linings.
2. Silicon carbide castable: made with silicon carbide as the main raw material and adding an appropriate amount of binder. It is mainly used in the manufacture of silicon carbide products, wear-resistant parts, high-temperature stoves and other high-temperature equipment.
3. Wear-resistant castable: Wear-resistant aggregate is used as the main raw material and an appropriate amount of binder is added. It is mainly used for high-temperature wear-resistant equipment, such as cement kilns, coal-fired boilers, etc.
4. High alumina castable: made with high alumina as the main raw material and adding an appropriate amount of binder. It is mainly used for high-temperature equipment such as high-temperature kilns and high-temperature pipelines.
5. Heat-insulating castable: made of refractory fiber as the main raw material and adding an appropriate amount of binder. It is mainly used in high-temperature insulation equipment, such as the top and furnace wall of high-temperature kilns.
6. Acid-resistant castable: made of siliceous material as the main raw material and adding an appropriate amount of binder. It is mainly used in the manufacture of acid-resistant equipment, such as high-temperature pipelines and reactors for sulfuric acid plants.
7. Alkali-resistant castable: It is made with low cement castable or phosphate castable as the main raw material and an appropriate amount of binder. It is mainly used in the manufacture of alkali-resistant equipment, such as high-temperature pipelines and reactors in chemical plants.
In short, castables have excellent high-temperature performance, corrosion resistance and mechanical properties, and are widely used in equipment manufacturing and maintenance in various high-temperature environments.