Fused Cast Zirconia Corundum（AZS） Blocks
Fused cast zirconia corundum blocks are mainly applied in glass industry tank furnaces, featuring high resistance to molten glass corrosion and low pollution to molten glass.
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Physical and Chemical Indicators
|
Item |
AZS33Y |
AZS36Y |
AZS41Y |
|
ZrO₂ (%) |
32~36 |
35~40 |
40~44 |
|
SiO₂ (%) |
≤ 16 |
≤ 14 |
≤ 13 |
|
Na₂O (%) |
≤ 1.45 |
≤ 1.45 |
≤ 1.3 |
|
Fe₂O₃ + TiO₂ + CaO + MgO + K₂O + Na₂O (%) |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
|
Fe₂O₃ + TiO₂ (%) |
≤ 0.3 |
≤ 0.3 |
≤ 0.3 |
|
Bulk Density (g/cm³) |
≥ 3.75 |
≥ 3.8 |
≥ 3.95 |
|
Apparent Porosity (%) |
≤ 1.5 |
≤ 1.0 |
≤ 1.0 |
|
Static Molten Glass Corrosion Rate (1500℃×36h, mm/24h) |
≤ 1.6 |
≤ 1.5 |
≤ 1.3 |
|
Initial Exudation Temperature of Glass Phase (℃) |
≥ 1400 |
≥ 1400 |
≥ 1400 |
|
Bubble Evolution Rate (1300℃×10h, %) |
≤ 2.0 |
≤ 1.5 |
≤ 1.0 |
|
Glass Phase Exudation Amount (1500℃×4h, %) |
≤ 2.0 |
≤ 3.0 |
≤ 3.0 |
|
Bulk Density (Unit Weight > 50Kg, kg/m³)Regular / Tilt Cast |
≥ 3400 |
≥ 3450 |
≥ 3550 |
|
Bulk Density (Unit Weight > 50Kg, kg/m³)Quasi-Void-Free Cast |
≥ 3600 |
≥ 3700 |
≥ 3850 |
|
Bulk Density (Unit Weight > 50Kg, kg/m³)Void-Free Cast |
≥ 3700 |
≥ 3750 |
≥ 3900 |
