Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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Refractory Block Corundum Mullite Brick For The Inner Liner Of High-temperature Kiln
Features:
1.High refractoriness
2.Good corrosion resistance
3.Low thermal expansion
Application:
The corundum mullite brick can be used in the inner liner of high-temperature kiln, the shed bar of kiln car, pusher plate of electronic magnetic material industry, etc.
Physical properties and chemical composition
| 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 |