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Product introduction of JM30 mullite insulation brick
The refractory of mullite insulating bricks is relatively high, reaching above 1790 ℃. The starting temperature of load softening is 1600 ～ 1700 ℃. The normal temperature compressive strength is 70~260MPa. Good thermal shock resistance. There are two kinds of sintered mullite bricks and fused mullite bricks.
Advantages of JM30 mullite insulation brick
- Mullite insulation brick has high thermal compressive strength
- Low thermal conductivity, with good thermal insulation effect;
- Mullite insulation bricks have low thermal melt. Due to low thermal conductivity, Mullite lightweight insulation bricks store little heat energy and have obvious energy-saving effect in intermittent operation.
- Low impurity content with very low iron box alkali metal oxide content, therefore, high refractoriness; High aluminum content makes it maintain good performance in reducing atmosphere.
- The appearance size is accurate, speed up the masonry speed, reduce the use of refractory mud, ensure the strength and stability of masonry, thus extending the life of the lining;
- Mullite insulation bricks can be made into special shapes. To reduce the number of bricks and joints.
Parameters of JM30 mullite insulation brick
| Index | Volume Density | Reheating Linear Change | Cold Compression Strength | Bending Strength At Normal Temperature | Thermal Conductivity | Al2O3 | SiO2 | Fe2O3 | |
| - | - | g/cm3 | 1400℃*12h,% | Mpa | Mpa | 350℃w/m·k | % | % | % |
| JM30 | A | 1 | -0.8 | 3 | 1.8 | 0.4 | 72 | 26 | 0.5 |
| JM30 | B | 1.1 | -0.7 | 3.5 | 1.9 | 0.43 | 72 | 26 | 0.5 |
| JM32 | A | 1.1 | -0.8 | 3.6 | 1.9 | 0.43 | 75 | 23 | 0.4 |
| JM32 | B | 1.2 | -0.7 | 3.8 | 2 | 0.46 | 75 | 23 | 0.4 |