Magnesia brick for glass kiln
The magnesia bricks, magnesia alumina spinel bricks, magnesia zirconium bricks and magnesia chrome bricks produced by our company have good corrosion resistance to alkali steam and alkali slag, and are suitable for glass furnace regenerators, cement furnace non-ferrous metals Smelting furnaces, steelmaking electric furnaces, open hearth furnaces, converters and iron mixing furnaces and other parts that come into contact with alkaline substances.
| index/product | Magnesium aluminum spinel titanium brick series | Magnesia zirconium brick | ||
|---|---|---|---|---|
| WMLZ-85 | WMLZ-84 | WMLZ-75 | WMZ-85 | |
| MgO% | ≥84.5 | ≥83.5 | ≥75 | ≥85 |
| SiO2% | ≤0.5 | ≤1.0 | ≤1.0 | Zr2O3≥12 |
| CaO% | ≤0.8 | ≤1.0 | ≤1.0 | - |
| Fe2O3% | ≤0.4 | ≤0.6 | ≤0.6 | - |
| Ti2O3% | trace | trace | trace | - |
| Al2O3% | ≥12 | -≥12 | ≥12 | - |
| Apparent porosity % | ≤18 | ≤19 | ≤19 | ≤14 |
| Cold crushingstrength Mpa | ≥80 | ≥70 | ≥70 | ≥80 |
| 0.2 mpa ℃ load softening point t0.6 | T0.5＞1700 | T0.5＞1700 | T0.5＞1700 | T0.5＞1700 |
| Bluk densely g/cm³ | ≥3.05 | ≥3.00 | ≥3.00 | ≥3.18 |
| Thermal expansion rate % | 1.4(1400℃) | 1.3(1400℃) | 1.3(1400℃) | - |
| Thermal shock stability 1100℃ water cooling times | ≥25 | ≥20 | ≥20 | ≥15 |
Thermal Conductivity w/m.k 400℃ 700℃ 1100℃ | 7.5 5.5 4.2 | - - - | - - - | - - - |
