We are a refractory material manufacturer, with four major factories: heavy brick factory, light brick factory, monolithic refractory factory and fused-cast brick factory.
We promise to provide you with high-quality refractory materials.
1.Product Introduction of magnesia aluminum spinel brick
Magnesia aluminum spinel brick is made of good synthetic spinel raw materials and special technology. The product has the characteristics of high compressive strength, good thermal shock stability, good thermal creep performance, high load softening temperature, etc. At the same time, it also has the characteristics that the magnesia chrome bricks are easy to stick to the kiln skin, which solves the problem that the magnesia chrome bricks used in cement kilns produce hexavalent chromium potassium and pollute the environment.
2.Features of magnesia aluminum spinel brick
- Due to the poor high temperature strength, the fire resistance under load is about 1500-1550 ° C.
- High fire resistance, usually higher than 2000 ℃.
- It has strong resistance to alkaline (alkaline) slag and cannot contact with acidic refractory materials.
- Poor thermal shock resistance and stable furnace temperature.
- The volume stability is poor under high temperature, and proper expansion joints must be reserved during bricklaying.
- It has strong thermal conductivity and sometimes requires insulating materials.
- It has good moisturizing property, so that the product will not be affected with moisture during storage.
3. Parameters of magnesia aluminum spinel brick
| Items | Index |
| MgO, % | ≥82 |
| Al2O3 % | 13-15 |
| Fe2O3 % | ≤0.8 |
| Bulk Density,(g/cm3) | ≥2.98 |
| Apparent Porosity, % | ≤17 |
| Cold Crushing Strength, MPa | ≥60 |
| Refractoriness Under Load, °C, [0.2MPa×0.6%] | ≥1700 |
| Thermal Shock Resistance, Times, [1100°C, water-cooling] | ≥15 |
| Refractoriness, °C | ≥1800 |
4. Our company
We have been a refractory manufacturer for 15 years. Our products comply with the ISO9001 quality management system. The mineral content, product strength, service temperature and other indicators fully meet your needs. We support product testing. Welcome to the factory for inspection.
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