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Product description of magnesia alumina spinel brick
Magnesia aluminum spinel brick is a synthetic spinel resistant raw material made of magnesium oxide and aluminum trioxide as raw material. This raw material is very low in nature and industrial magnesia aluminum spinels are artificially synthesized. Aluminum spinel sintered with magnesium was sintered at high temperature of 180C C at a high temperature tunnel kiln.
Features of magnesia aluminum spinel brick
High temperature resistance
Strong peeling ability
Resistant to slag
Resistant to wear
Parameters of magnesia alumina spinel brick
| Iterms | KRSH-1 | KRSH-2 | KRSH-3 | KRSH-4 |
| МgО％, ≥ | 88 | 86 | 84 | 82 |
| Аl2О3％, ≥ | 6 | 9 | 9 | 8 |
| SiО2％, ≥ | 0,5 | 0,5 | 0,8 | 1,0 |
| 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 |
Application of magnesia aluminum spinel brick
Magnesia aluminum spinel brick is mainly made of non-ferrous metal smelting steel nickel furnace and aluminum smelting furnace, lining of electric furnace lid, inside of barrel steel barrel, lining of refining vacuum processing equipment outside the reactor, and high temperature zone lining of cement kiln It is used for a good fire resistance system such as a heat storage room of a regular steel furnace and a thermal chamber lattice brick of glass melting kiln.