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Product description of lightweight insulating castable
The lightweight insulating castable is made of high-quality and high-strength material aggregate, ultra-fine powder and composite additives, with high fire resistance, high strength and low thermal conductivity. It has the advantages of small density and low thermal conductivity, which can not only reduce the heat consumption of industrial furnace, but also reduce the weight of furnace lining.
Applications of lightweight insulating castable
It is applicable to medium and low temperature furnace lining, ceiling and movable cover plate. Thermal insulation or single lining of rotary kiln and industrial kiln.
Parameters of lightweight insulating castable
| Index | QJ-0.5 | QJ-0.8 | QJ-1.0 | QJ-1.1 | QJ-1.3 | QJ-1.5 | QJ-1.8 | |
| Bulk Density, g/cm3≥ | 0.5 | 0.8 | 1 | 1.1 | 1.3 | 1.5 | 1.8 | |
| Rervice Temperature, ℃ | 1150 | 1200 | 1250 | 1250 | 1300 | 1300 | 1350 | |
| Thermal Conductivity, W/m·k≤ | 350℃ | 0.15 | 0.25 | 0.3 | 0.4 | 0.45 | 0.6 | 0.65 |
| 700℃ | 0.2 | 0.3 | 0.4 | 0.45 | 0.5 | 0.7 | 0.75 | |
| Cold Crushing Strength, MPa≥ | 110℃×24h | 1.5 | 2 | 4 | 5.5 | 10 | 15 | 20 |
| 1000℃×3h | 1.5 | 2 | 5.5 | 6.5 | 15 | 20 | 30 | |
| Permanent linear change 1000℃×3h,% | -1.5 | -1 | -1 | -0.5 | -0.5 | -0.5 | -0.5 |