Alumina Insulation Brick
1. Low Volume Density;
2. Lower Thermal Conductivity;
3. Excellent Heat Insulation;
4. Significant Energy-Saving Effect;
Technical Data
| Item/Grade | LG140-1.2 | LG140-1.0 | LG140-0.8L | LG140-0.7L | LG140-0.6L | LG140-0.5L | |
|---|---|---|---|---|---|---|---|
| ω (Al2O3)/% | μ0 ≥ | 48 | |||||
| σ | 1.0 | ||||||
| ω (Fe2O3)/% | μ0 ≤ | 2.0 | |||||
| σ | 0.3 | ||||||
| Bulk Density/(g/cm³) | μ0 ≤ | 1.2 | 1 | 0.8 | 0.7 | 0.6 | 0.5 |
| σ | 0.05 | ||||||
| Cold Crushing Strength/MPa | μ0 ≥ | 4.5 | 3.5 | 2.5 | 2.2 | 1.6 | 1.2 |
| σ | 1.0 | 0.5 | 0.2 | ||||
| Xmin | 4.0 | 3.0 | 2.2 | 2.0 | 1.5 | 1.0 | |
| Permanent Linear Change/% (T/℃*12h) | Test Temperature T/℃ | 1400 | 1350 | 1250 | |||
| Xmin~Xmax | -2~1.0 | ||||||
| Thermal Conductivity Coefficient/[W/(m·K)] ≤ Average Temperature (350±25℃) | 0.55 | 0.50 | 0.35 | 0.30 | 0.25 | 0.20 | |
Applications of Alumina Insulation Brick
Used in insulation layer of industrial kilns like ceramic tunnel kilns, roller kilns, shuttle kilns, wall kilns, etc. As well as other locations without strong erosion of high-temperature molten materials.