Brief introduction Alumina silicon carbide brick
The alumina silicon carbide brick is made by special sintering process with special high alumina bauxite, silicon carbide, mullite, etc. as the main raw materials. It has the characteristics of high strength, wear resistance, small thermal conductivity and good thermal vibration stability.
Application of Alumina silicon carbide brick
Aluminum carbide bricks are mainly used in rotary kilns, front transition zones and rear transition zones of cement kilns, as well as kilns with high requirements for service temperature, wear resistance and thermal shock temperature. Such as micro steel rotary kiln, magnesite incinerator, sintered mullite rotary kiln, etc.
Alumina silicon carbide andalusite brick
Alumina silicon carbide and dolomite bricks are based on special grade bauxite, silicon carbide, mullite and added dolomite.
Features of alumina silicon carbide andalusite brick
Alumina silicon carbide andalusite brick: high strength, strong erosion resistance, wear resistance and good thermal shock stability. Alumina, silicon carbide and dolomite bricks are not only used in cement kilns, but also suitable for kilns with high requirements on operating temperature, wear resistance and thermal shock temperature, such as grain steel rotary kilns, magnesite incinerators, sintered mullite rotary kilns, etc.
Composite aluminum silicon carbide brick
The composite aluminum carbide brick is directly composed of light and heavy materials, which is divided into two parts: the working layer and the thermal insulation layer. The junction is wavy serrated.
The working layer is made of aluminum carbide bricks, and the thermal insulation layer is made of light mullite bricks. While ensuring high strength, the shrinkage and expansion rates during high-temperature sintering are close to those of the working layer. The main feature of this product is its low thermal conductivity. The user has verified that the temperature of the barrel can be reduced by about 30 ℃, and the effect of energy saving and consumption reduction is very obvious.
Parameters of aluminum silicon carbide brick
| Item | Alumina silicon carbide andalusite | Alumina silicon carbide | Alumina silicon carbide | Alumina silicon carbide |
| Grade | KR-SMA-1680T | KR-GM-1680 | KR-GM-1650 | KR-GM-1550 |
| Al2O3（%）≥ | 68 | 65 | 65 | 60 |
| SiO2+SiC（%）≥ | 30 | 30 | 30 | 28 |
| Density（g/cm3）≥ | 2.7 | 2.65 | 2.6 | 2.5 |
| Normal temperature compressive strength（MPa）≥ | 90 | 90 | 85 | 80 |
| Load softening temperature（T0.6℃）≥ | 1680 | 1680 | 1650 | 1550 |
| Thermal shock (1100℃ water cooling). times | 15 | 15 | 10 | 10 |
| Thermal conductivity (1100℃) (W.mk) ≤ | 1.7 | 2.0 | 2.3 | 2.3 |
| Abrasion resistance coefficient (cc) | 8.0 | 7.8 | 8.2 | 8.5 |