Magnesia alumina spinel castables (also called magnesium aluminate spinel castables), and refractories containing magnesia aluminate spinel (MgAl2O4) are materials for emerging technology in several applications like cement and steelmaking processes. The development of self-forming spinel castables without any synthetic spinel grains appears to be a promissory for optimum refractory linings.
Magnesia alumina spinel castables (also called magnesium aluminate spinel castables), and refractories containing magnesia aluminate spinel (MgAl2O4) are materials for emerging technology in several applications like cement and steelmaking processes. The development of self-forming spinel castables without any synthetic spinel grains appears to be a promissory for optimum refractory linings.
Refractories containing magnesium aluminate spinel are becoming increasingly popular due to their exceptional behavior in several applications. Spinel refractories have been successfully applied in aluminum, glass, lime, and cement process vessels and also in steelmaking ladles. magnesia-spinel materials are generally used in the transition zones of cement kilns.
The magnesia aluminum spinel castables are prepared from high-purity materials, which have good corrosion resistance, and thermal shock stability. Magnesia aluminum spinel refractory castables have a few anti-flaking properties. And which is the finest advanced refractory material.
Plastic bag(25kg), Kraft bag (25 kg), Plastic Ton bag(1 ton);
1 ton on the pallet with plastic film & bundle belts.
Per your requests
Good strength
Good fluidity
Appropriate solidification time
Save time, fast and convenient
High strength, long life
Good insulation properties
High-temperature resistance
Corrosion resistance and good thermal shock resistance
Furnaces of metallurgy industry, heat treatment furnace.
Furnace of incineration of garbage, recirculating fluidized bed furnace.
Furnaces of the chemical industry and construction industry.
Cement rotary kiln.
| item | XHJMAC80 | XHJMAC82 | XHJMAC85 | XHJMAC90 | |
| AL2O3（%） | 70 | 75 | 80 | 85 | |
| MgO（%） | 13 | 12 | 11 | 8 | |
| SiO2 (%) | 3 | 2 | 1 | 1 | |
| Bulk density | (g/cm³) | 2.6 | 2.65 | 2.7 | 2.75 |
| Thermal Shock Stability | 1000℃, water, quenching, cycle | 70 | 80 | 100 | 75 |
| Cold crushing strength | (MPa) 110℃*24H | 40 | 40 | 45 | 40 |
| Modulus of Rupture | (MPa) 110℃*24H | 5.5 | 5.5 | 5.5 | 5.5 |
| Heating permanent line change, % | Test temperature×3h | -0.5~+1.5 | -0.5~+1.8 | -0.2~+1.8 | -0.2~+1.8 |
| (1500℃) | (1550℃) | (1550℃) | (1550℃) | ||
| Refractoriness under load | (℃) 0.2MPa | 1650 | 1710 | 1730 | 1770 |
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