Magnesia alumina spinel brick is a high-grade basic refractory with periclase and spinel as the main minerals.
Magnesia alumina spinel brick is a high-grade basic refractory with periclase and spinel as the main minerals. It is formed by high-pressure molding and high-temperature sintering. At the same time, special mineralizer is added to make the crystal phase particles of products directly combine. It has the characteristics of high strength, good thermal shock stability and strong resistance to chemical erosion. It is mainly used in the upper and lower transition zone of cement rotary kiln and thermal kiln equipment requiring high temperature resistance and heat shock resistance.
| Items | MA-1 | MA-2 |
| MgO % | ≥70 | ≥75 |
| AL2O3 | ≥6 | ≥10 |
| AP % | ≤18 | ≤20 |
| BD g/cm3 | ≥2.80 | ≥2.90 |
| CCS Mpa | ≥40 | ≥40 |
| RUL℃ | ≥1620 | ≥1620 |
| TSR 1100℃ (water, times) | ≥10 | ≥10 |
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