Magnesia aluminum spinel brick
Production process: The product is made of sintered magnesia and magnesia-alumina spinel, which is formed by high pressure molding, drying and high temperature firing.
Product performance: strong resistance to penetration and erosion, good thermal shock stability, high load softening temperature.
Main use: It is used in the transition zone of medium and large dry process cement rotary kiln.
| Item | MJL-80 | MJL-85 |
|---|---|---|
| MgO（%） | 83-85 | 85-88 |
| Al2O3（%） | 9-12 | 6-9 |
| SiO2（%）≤ | 1.2 | 1.2 |
| Apparent porosity（%）≤ | 18 | 19 |
| B.D.（g/cm³）≥ | 2.95 | 2.95 |
| Withstand pressure at normal temperature（Mpa）≥ | 60 | 50 |
| Softening temperature under load（℃）≥ | 1700 | 1650 |
| Thermal shock stability（time）≥ | 12 | 0 |
