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Brief introduction of lightweight clay insulation bricks
Lightweight clay insulation bricks are made of clay as the main raw material, according to the latest international standards, from top local refractory clay materials at high temperatures of 1200-1400°C. These components are mixed with water to make plastic materials or slurries, extruded or cast shapes, dried in an oxidizing atmosphere, and burned at 1250-1350°C.
Features of lightweight clay insulation brick
Lightweight clay bricks have uniform bulk density, high strength, low thermal conductivity and few impurities. Lightweight clay bricks have the advantages of high strength, good thermal shock stability, small change in refi line and small thermal conductivity.
Application of lightweight clay insulation bricks
Lightweight refractory thermal insulation clay bricks are mainly used for various kiln linings and insulation layers in metallurgy, machinery, ceramics, chemical industry, etc., and as thermal insulation linings for high temperature surfaces or thermal insulation materials for other refractory materials.
Parameters of fire clay insulation brick
| Index | QN-0.6 | QN-0.8 | QN-1.0 |
| Bulk & Density (g/cm3) ≥ | 0.6 | 0.8 | 1 |
| Cold Crushing Strength (MPa) ≥ | 2 | 3 | 4 |
| Heat Conductivity (900℃±25) (W/m·k) ≤ | 0.25 | 0.3 | 0.5 |