Alumina Bubble Brick
1. High Crushing Strength;
2. High Crushing Strength;
3. Good Thermal Shock Resistance;
4. Good Thermal Stability;
5. Lightweight and Energy-saving
6. Lower Thermal Conductivity;
Technical Data
| Item/Grade | LQZ-99-1.4 | LQZ-99-1.6 | LQZ-99-1.8 | LQZ-95-1.4 | LQZ-95-1.6 | LQZ-95-1.8 | LQZ-90-1.4 | LQZ-90-1.6 | LQZ-90-1.8 |
|---|---|---|---|---|---|---|---|---|---|
| ω (Al2O3) ≥/% | 99 | 95 | 90 | ||||||
| ω (SiO2) ≤/% | 0.3 | / | / | ||||||
| ω (Fe2O3) ≤/% | 0.2 | 0.2 | 0.2 | ||||||
| Bulk Density (g/cm³) | 1.3-1.5 | 1.5-1.7 | 1.7-1.9 | 1.3~1.5 | 1.5-1.7 | 1.7-1.9 | 1.3-.5 | 1.5-1.7 | 1.7-1.9 |
| Cold Crushing Strength ≥/MPa | 6 | 10 | 12 | 8 | 12 | 16 | 10 | 14 | 18 |
| Thermal Conductivity Coefficient (1000℃)/[W/(m·K)] | 0.9 | 1.1 | 1.2 | 0.9 | 1.1 | 1.2 | 0.9 | 1.1 | 1.2 |
| Permanent Linear Change (1600℃*3h)/% | -0.3~+0.3 | -0.3~+0.3 | -0.3~+0.3 | ||||||
Applications of Alumina Bubble Brick
Commonly used as the working layer and heat insulation layer of high temperature kilns in petrochemical industry gasifiers, carbon black reactors, metallurgical induction furnaces and other industries.