Description of Corundum Mullite Bricks
Main material of corundum mullite brick is imported plate corundum, high pure fused corundum, adopt advanced superfine powder adding technology, it is made by the mixing material, drying, molding and burned in high temperature shuttle kiln.
Characteristics of Corundum Mullite Bricks
- Low bulk density, low thermal conductivity, good thermal insulation performance.
- Refractory category allow direct contact of fire, suitable ofr various atmosphere
- Good integrity with furnace lining, long service life, easy operation, could be shaped freely
- Product specification: standard form, normal standard, shaped and special shaped bricks.
- Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.
Corundum Mullite Bricks For Glass Furnace Advantage
- high quality raw material: high purity corundum
- Strong volume stability at high temperatures,
- Low porosity, molded with high pressure and high temperature
- Good thermal shock resistant, wear resistance and chemical attack resistance.
The Application of Corundum Mullite Bricks
- Metalluragy industry
- Heat treatment furnace
- Chemical industry
- Steel,non-ferrous smelting furnace
- Boiler and waste incinerator
- Coke oven
- Blast furnace
Physical And Chemical Index of Corundum Mullite Brick
| Performance and application | Corundum-mullite brick | |
| Al2O3 % | 80 | ≥86 |
| Bulk density g/cm3 | ≥2.75 | ≥2.90 |
| Cold Crushing Strength Mpa | ≥60 | ≥80 |
| Refractoriness under load °C | ≥1700 | ≥1700 |
| Liner Change on Reheating% | ±0.2(1600°C*2h) | ±0.2(1600°C*2h) |
| Thermal shock stability (water-cooling)frequency 1100 °C | ≥20 | ≥20 |
| Coefficient of thermal expansion *10-6/°C | 4.8-7.6 | 5.0-8.0 |
| Max application temperature °C | 1700 | |
| Application | Used for the inner liner of high-temperature kiln, the shed bar of kiln car, etc. | Used for the inner liner of high-temperature kiln, pusher plate of electronic magnetic material |
