Description of Silicon carbide castable
Silicon carbide castable is an undefined refractory material consisting of silicon carbide particles, binder, additives, etc. The mixture has excellent resistance to abrasion, oxidation and corrosion, due to which cast silicon carbide has excellent stability and durability under high temperature, high pressure and corrosive environments.
Characteristics of the Silicon carbide castable
| Name of indicators | СБКК 80 | |
|---|---|---|
| Mass fraction, %: | ||
| SiC, не менее | 80 | |
| Al2O3, не более | 7 | |
| SiO2, no more | 10 | |
| СаО, не более | 2,5 | |
| Apparent density, g/cm3, not less than, after heat treatment of samples at a temperature of °C: | 100 | 2,39 |
| 1000 | 2,35 | |
| Open porosity, %, not more than, after heat treatment of samples at a temperature of °C: | 100 | 25 |
| 1000 | 25 | |
| Compressive strength, MPa, not less than, after heat treatment of samples at a temperature of °C: | 100 | 10 |
| 1000 | 25 | |
| Grain composition1, %: | No. 2, not less than | 2 |
| № 0 5, не более | 30 | |
| № 0 063, в пределах | 40 - 50 | |
| The amount of water required for concrete of working consistency | electively | |
Advantages of silicon carbide castable
High fire resistance
Silicon carbide castable has high fire resistance and can maintain stable performance for a long time under high ambient temperature above 1600℃.
Oxidation resistance
Silicon carbide castable has good oxidation resistance at high temperatures and can resist erosion by oxidizing environments such as oxygen and water vapor.
Corrosion resistance
Silicon carbide has excellent resistance to acids and alkalis and can effectively resist erosion of slag, metal oxides and other aggressive substances.
Good Wear Resistance
Silicon carbide castable has high hardness and excellent wear resistance, it can resist wear under harsh conditions such as high temperature, high pressure and fluid environment, can reduce wear and damage caused by friction.
Good thermal conductivity
The silicon carbide castable has high thermal conductivity, which facilitates rapid transfer and uniform distribution of heat in the furnace, increasing the thermal efficiency of furnace equipment.
Good volume stability
The silicon carbide castable has a low coefficient of thermal expansion, is little susceptible to thermal expansion, and is able to maintain its shape and stability.
Application of silicon carbide castable
Ferrous metallurgy
Silicon carbide castable is used for sealing and repairing high-temperature equipment such as steel furnaces, iron furnaces and ladles.
Non-ferrous metallurgy
Silicon carbide castable is used for patching and repairing furnaces and converters for smelting non-ferrous metals - aluminum, copper, zinc, nickel, etc.
Glass industry
Silicon carbide castable is used for repair and restoration work on glass melting furnaces, annealing furnaces and other equipment.
Chemical industry
Silicon carbide castable is used for maintenance and repair of high-temperature chemical equipment, such as catalytic cracking furnaces and gasification furnaces.
Ceramic industry
The Silicon carbide castable is used for maintenance and repair of tunnel, shuttle kilns and other equipment for the production of ceramics.
Energy industry
Silicon carbide castable can be used in the manufacture of high-temperature heating equipment such as oil cracking furnaces, coal gasifiers, and liquefied natural gas storage tanks.
