1. Strong glass corrosion resistance
2. High thermal shock stability.
3. Good wear-resistance.
Feature:
1. Strong glass corrosion resistance and high thermal shock stability.
2. Good wear-resistance, dregs-resistance and alkali corrosion resistance.
3. Adopting superior material, casted by fusing technology, barely no pollution.
Applications:
1. High temperature industrial furnace such as glass furnace, cement kiln, heaters molten steel ladle
2. Metallurgical furnaces for nonferrous metals and furnaces for chemical engineering industries.
Physical and chemical index:
Item | Properties | ||||
High-purity corundum bricks DL-98 | Ordinary corundum bricks DL-95 | Ordinary corundum bricks DL-90 | Mullite corundum bricks MDL-80 | Chromium corundum bricks GDL-85 | |
Al2O3% | 98.5 | 95 | 90 | 80 | 85 |
Cr2O3% |
|
|
|
| 8 |
SiO2% | 0.3 | 3.0 | 9.0 | 18 | 0.2 |
Fe2O3% | 0.2 | 0.2 | 0.5 | 0.5 | 0.2 |
R2O% | 0.3 | 0.6 | 0.6 | 0.4 | 0.5 |
Bulk density,g/cm3 | 3.0 | 2.9 | 2.9 | 2.7 | 3.1 |
Cold Crushing strength MPa | 75 | 100 | 100 | 60 | 80 |
Refractoriness,°C | 1790 | 1790 | 1790 | 1790 | 1790 |
Softening temperature under load,°C, | 1700 | 1650 | 1650 | 1700 | 1700 |
Refiring line changes(%),1600°C×3h≤ | 0.2 | 0.2 | 0.2 | 0.3 | 0.2 |
Application | High temperature industrial furnace | ||||
