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Brief introduction of wear-resistant castable
The wear-resistant castable is a super refractory based on high bauxite aggregate, bauxite clinker and aluminum oxide powder, with pure calcium aluminate cement as the binder, superfine powder as the additive, and a specified amount of heat-resistant stainless steel fiber.
Because of its high strength and good integrity, it has been widely used in the power industry. It is mainly used in the straight section of separator, inlet and outlet separator, cone separator, etc. in the fluidized bed boiler.
Features of wear-resistant castable
High fire resistance, high fire resistance under load.
High density and low porosity.
Good slag resistance and corrosion resistance.
High strength and wear resistance.
Good peeling resistance.
Good thermal shock stability.
Erosion resistance.
Good thermal strength.
Application of wear-resistant castable
Furnace and heat treatment furnace for metallurgical industry.
Garbage incinerator, CFB boiler furnace.
Stoves for chemical and construction industries.
Parameters of wear-resistant castable
Items | KRW-1 | KRW-2 | KRW-3 | |
Chemical Composition, % | Al2O3 | 70 | 75 | 85 |
SiO2 | 20 | 15 | 10 | |
Bulk Density, g/cm3 | 110°C | 2.75 | 2.85 | 2.95 |
815°C | 2.75 | 2.85 | 3 | |
1100°C | 2.8 | 2.9 | 3.1 | |
Cold Crushing Strength, MPa | 110°C≥ | 60 | 120 | 130 |
815°C≥ | 65 | 125 | 135 | |
1100°C≥ | 70 | 130 | 140 | |
MOR, MPa | 110°C≥ | 8 | 12 | 13 |
815°C≥ | 9 | 13 | 14 | |
1100°C≥ | 12 | 13.5 | 15 | |
Thermal Shock Resistance, Times | – | 20 | 22 | 28 |