Production process
Professional production of corundum mullite bricks
Oxidation melting casting AZS33
The dense microstructure of AZS-33# zirconium corundum brick makes the brick resistant to glass erosion, is not easy to produce stones or other defects, and the possibility of producing small bubbles is also very low. Therefore, AZS-33# zirconium corundum brick is the most widely used product in glass furnace.
typical chemical composition
typical crystal phase composition
physical and chemical index
| 理化指标Physical & Chemical Index | |
| AZS-33 | |
| Sio₂ | ≤ 15.3 |
| Al₂o₃ | Allowance |
| Zr0 ₂ | 32-36 |
| Na₂0 | ≤ 1.45 |
| Fe₂0₃T | ≤ 2.5 |
| glass phase exudation temperature | 1400 |
| Load softening temperature at 0.2Pa ("C) | 1700 |
| Resistance to glass liquid erosion (1500 C36hr, ordinary glass) mm/24hr | ≤ 1.45 |
| Bubble precipitation rate (1300C, 10hr, common glass)% | ≤ 2.0 |
| Capacity density(g/cm) Ordinary casting Inclined casting | ≤ 3.45 |
| Quasi-shrinkage-free casting | ≤ 3.6 |
| Shrinkage-free casting | ≤ 3.7 |
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