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Aluminum silicate board
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Alumina-silicate fiberboard is a dry-process board made primarily from hard clay clinker—calcined bauxite—as the main raw material. It is produced by melting and blowing the material in an electric arc furnace, then adding a certain proportion of binder to form alumina-silicate felt. After being shaped through hot-air penetration in a curing chamber, the board is automatically cut and formed by a computer-controlled cutting system.
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Alumina-silicate fiberboard is a dry-process board made from hard clay clinker—specifically, coke-blasted alumina—as the primary raw material. It is produced by melting and blowing the clinker in an electric arc furnace, then adding a certain proportion of binder to form alumina-silicate felt. After being shaped and set through hot-air penetration in a curing chamber, the board is automatically cut into final dimensions by a computer-controlled cutting station.
Aluminum silicate soft board, aluminum silicate semi-hard board, aluminum silicate hard board
1 Industrial kiln
2 Thermal insulation for the power industry, power boilers, gas turbines, and nuclear power plants
3. Fireproof and thermal insulation for building construction and fire doors
4 Thermal insulation for petroleum, cement, aluminum, steel mills, and other industries
5 Shipbuilding industry, fire protection, thermal insulation
| Project | High-purity type | High-alumina type | Zirconium-containing type | |
| Color | White | White | White | |
| Volumetric density (kg/m³) | 70/100 | 100/130 | 130/150 | |
| Thermal conductivity (W/m·K) at each hot surface temperature | 0.034 (20℃) | 0.034 (20℃) | 0.034 (20℃) | |
| 0.098 (400℃) | 0.09 (400℃) | 0.09 (400℃) | ||
| 0.132 (600℃) | 0.126 (600℃) | 0.126 (600℃) | ||
| 0.167 (800℃) | 0.161 (800℃) | 0.159 (800℃) | ||
| Permanent shrinkage rate (insulated for 24 hours) | -4.0 (900–1000℃) | -4.0 (900–1000℃) | -4.0 (900–1000℃) | |
| Slag ball content (%) φ > 0.25 mm | 10.5 | 9.8 | 10.2 | |
| Fiber fineness (μm) | 2.0 | 2.2 | 2.2 | |
Note: The above data were obtained using the testing methods prescribed by national standards.
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