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Magnesia alumina spinel brick is a kind of alkaline refractory product with periclase as main phase and magnesia-alumina spinel clinker as basic material. The product is of good temperature vibration, good strength and volume stability in high temperature environment.
- The magnesia alumina spinel bricks can be used in the cement kiln, not only avoid the chrome pollution, and has good anti-stripping performance.
- It can be used in refractory carstables for ladles, which greatly improve the anti-erosion ability. It is widely applied to steel-making refractory material. The preparation of high quality pre-synthertic spinel provide a new material for amorphous and fixed high purity refractory.
|Bulk density, g/cm3||2.9||2.9||2.85||2.8|
|Open porosity,%, ≤||18||18||19||20|
|Compressive strength, N/mm², ≥||60||60||50||45|
|Softening onset temperature, ℃, ≥||1700||1700||1680||1650|
|Thermal resistance, ≥, times||10||10||10||10|
|Thermal conductivity, 1000℃, W/m K||2.9||2.9||2.8||2.7|