With good thermal shock stability and wear resistance which is required for refractory materials for sliding gate, the sintered tabular alumina can precisely meet all the demands as sliding gate. The aluminum-carbon sliding gate made from sintered tabular alumina mixing with graphite (or carbon black) and antioxidant, or aluminum-zirconium-carbon sliding gate made from sintered tabular alumina mixing with an appropriate amount of zirconia, graphite (or carbon black) and antioxidant are very popular in steel making industry.
Typical Value
| Tabular alumina | Low soda tabular alumina | Ultra-low soda tabular alumina | ||||
| Chemical | Typical value | Guarantee Value | Typical value | Guarantee value | Typical value | Guarantee value |
| Al2O3 | 99.45% | 99.2% min | 99.58% | 99.3% min | 99.70% | 99.35% min |
| Fe2O3 | 0.02% | 0.1% max | 0.02% | 0.1% max | 0.01% | 0.1% max |
| Na2O | 0.34% | 0.4% max | 0.18% | 0.2% max | 0.03% | 0.05% max |
| SiO2 | 0.05% | 0.18% max | 0.06% | 0.18% max | 0.05% | 0.18% max |
| Physical | Typical value | Guarantee Value | Typical value | Guarantee value | Typical value | Guarantee value |
| Bulk density | 3.55 g/cm³ | 3.5 g/cm³ min | 3.61 g/cm³ | 3.55 g/cm³ min | 3.65 g/cm³ | 3.6 g/cm³ min |
| Porosiry | 2.35% | 5% max | 2.05% | 3% max | 1.80% | 2.5% max |
| Water absorption | 0.72% | 1.5% max | 0.68% | 1.2% max | 0.61% | 1% max |
Application:
Aluminum-carbon sliding gate
aluminum-zirconium-carbon sliding gate
Granule Specification：
| Fraction | 0-30mm,30-10mm,12-6mm,10-8mm,8-5mm,5-3mm,3-1mm,2-1mm,1-0mm,1-0.5mm,0.5-0.2mm,0.5-0mm,0.3-0mm |
| Fine | 46mesh-0,60mesh-0,80mesh-0,100mesh-0,120mesh-0,150mesh-0,180mesh-0,200mesh-0,240mesh-0,270mesh-0 |
| Customized size is available upon request | |
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