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Spinel Brick Magnesia-Alumina Refractory
| Brand Name : | GuoXin |
|---|
Product description
Spinel Brick Magnesia-Alumina Refractory
Magnesia-Alumina Spinel Brick is in order to improve the heat stability of magnesia brick, add alumina oxide in ingredient to generate the magnesia brick which the main material is magnesia-alumina spinel. The advantage of magnesia-alumina spinel brick: good heat stability, in the process of use, it will have reaction with clinker and produce a thin layer of calcium aluminate maskant, which makes the liquid not easy to penetrate, its anti-stripping performance is better than the direct bonded magnesia chrome brick.
Magnesia bricks are basic refractory bricks used because of their high strength and heat resistant properties. Different grade magnesite is used as raw material and applied in magnesia bricks of various qualities. Magnesia bricks are mainly used in front and back wall of open hearth furnaces, electric arc furnace and for blast furnace & chemical industry.
1.Outstanding resistance to chemical attack
2.Outstanding thermal-shock resistance
3.Highest refractoriness
4.Excellent abrasion resistance
5.Excellent performance under thermal and mechanical loads
Application zone: Transition zone of cement rotary kiln.
Raw Material:
1.Top grade sintered magnesia
2. Alumina-magnesia spinel.
Magnesia spinel bricks
| Brand | MgO （%）≥ | Al2O3（％）≥ | Fe2O3（％）≥ | SiO2 （％）≤ | Apparent porosity A.P（％）≤ | Bulk density B.D(g/cm3)≥ | Compressive strength at room temperature C.C.S≥ | Load softening temperature R.U.L（℃）≥ | Thermal shock stability T.S.R. 1100℃ Water cooling (times)≥ |
| MA-75 | 75 | 13 | 0.8 | 17 | 2.9 | 45 | 1700 | 10 | |
| MA-83 | 83 | 9 | 0.8 | 17 | 2.92 | 45 | 1700 | 10 | |
| MF-85 | 85 | 4 | 4 | 1.2 | 18 | 2.95 | 60 | 1650 | 8 |
Magnesia alumina spinel bricks use high purity magnesia sand and synthetic magnesia alumina spinel sand as the main raw materials, and the main crystal phases are periclase phase and magnesia alumina spinel phase. The product has the characteristics of good high temperature performance, high thermal shock stability, strong corrosion resistance of alkaline substances, good wear resistance, and good flexibility of resistance to high temperature and thermal load.
Dashiqiao Guoxin Refractory Material Co., Ltd. is located in Dashiqiao, Liaoning Province, which is the capital of magnesium in China. The company enjoys superior geographical position, with Beijing-Shenyang Expressway, Shenzhen-Dalian Expressway
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