Product Introduction
AZS Refractory Bricks & Blocks are produced from alumina powder, zirconia sand and additive. Zirconia content defines their corrosion resistance. AZS Fused Cast Refractories are the most widely used materials in glass melting furnaces, frit kilns and occasionally some foundry plants. AZS Refractory Bricks have low potential for stoning, blistering and exudation of the matrix glass. Therefore, most suitable for use in superstructures of melters, side walls of refiners, paving blocks, and forehearth channel blocks. According to the difference of Al2O3 contents, the AZS bricks usually are classified into the AZS#33, AZS#36 and AZS#41 for your Selection.
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Characteristics
1. High refractoriness under load and High-temperature endurable
2. Strong corrosion resistance and High thermal shock resistance
3. Good volume stability at high temperature and Low pollution
4. High hot crush strength and Good spalling resistance
5. Good wear resistance and Thermal conductivity
Technical Data
| Item | Specification | |||
| AZS#33 | AZS#36 | AZS#41 | ||
| 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 Corrosion, 1500℃×36h mm/24h | ≤1.6 | ≤1.5 | ≤1.3 | |
| Exudation Temperature, ℃ | ≥1400 | ≥1400 | ≥1400 | |
| Bubble Precipitation Rate, 1300℃×10h % | ≤2.0 | ≤1.5 | ≤1.0 | |
| Exudation Amount of Glass Phase, 1500℃×4h % | ≤2.0 | ≤3.0 | ≤3.0 | |
| Bulk Density, kg/m3
Unit Weight＞50Kg |
PT/QX | ≥3400 | ≥3450 | ≥3550 |
| ZWS | ≥3600 | ≥3700 | ≥3850 | |
| WS | ≥3700 | ≥3750 | ≥3900 | |
Application
Fused Cast AZS#33 Brick is widely used for glass furnace for superstructure, working pool side wall, paving blocks, feeder channels, tank bottom, C-shaped block and doghouse crown,etc.Fused Cast AZS#36 Brick is mainly used for sidewall, doghouses, throat, bottom budding, Dam blocks, electric block corners.Fused Cast AZS#41 Brick is mainly used for sidewalls, doghouses, bottom budding, Dam blocks, electric block corners.