Production process: the product is made of sintered magnesia, fused magnesia and fused magnesia chrome sand as raw materials, after high pressure molding, drying and high temperature firing.
Product performance: less impurity content, high volume density, good slag resistance, strong erosion resistance, high softening temperature under load.
Main USES: electric arc furnace, nonferrous furnace, glass kiln, cement rotary kiln, VOD, AOD, RH furnace, etc.
| Item | DMGe-8 | DMGe-12 | DMGe-14 | DMGe-16 | DMGe-18 | DMGe-20 | DMGe-22 | DMGe-24 |
|---|---|---|---|---|---|---|---|---|
| MgO(%) | 83 | 75 | 72 | 68 | 63 | 60 | 55 | 50 |
| Cr2O3(%) | 8 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| Fe2O3(%)≤ | 7 | 10 | 12 | 14 | 16 | 10 | 11 | 12 |
| SiO2(%)≤ | 2.0 | 2.0 | 2.0 | 2.0 | 1.5 | 1.4 | 1.2 | 1.0 |
| Apparent porosity(%)≤ | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 |
| B.D.(g/cm³)≥ | 3.00 | 3.00 | 3.05 | 3.15 | 3.25 | 3.30 | 3.30 | 3.30 |
| Withstand pressure at normal temperature(Mpa)≥ | 40 | 40 | 40 | 45 | 55 | 65 | 70 | 70 |
| Softening temperature under load(℃)≥ | 1600 | 1620 | 1650 | 1680 | 1700 | 1700 | 1750 | 1750 |