AZS Fused Cast Refractory
Zirconite (ZB) Series
- Anti-Contamination
- High Corrosion Resistance
Zirconite is a high-quality Al₂O₃-ZrO₂-SiO₂ (AZS) fused cast refractory produced by melting selected raw materials using the long-arc method under strict quality control. Its main components are baddeleyite (ZrO₂) and corundum (Al₂O₃) crystals in a glassy matrix, ensuring excellent performance and stable quality.
Features
01. High Corrosion Resistance
Selected alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂) raw materials and optimized production conditions result in dense fused cast refractories with high corrosion resistance to molten glass, providing durability in harsh furnace environments.
02. Anti-contamination
High-purity raw materials and rigorous quality control minimize the occurrence of defects such as stones and blisters during glass melting, making them widely used in areas requiring high-grade glass production.
Product Lineup
ZB-1681
AZS fused cast refractory with 33% zirconia. Minimizes stones and blisters, suitable for Superstructure of melting furnace, Breast wall of refining furnace, Pave, and Forehearth channel blocks.
ZB-1691
AZS fused cast refractory with 35% zirconia. Shows high corrosion and anti-contamination properties, suitable for glass contact parts such as Sidewall and Pave.
ZB-1711
AZS fused cast refractory with 41% zirconia. Provides excellent corrosion resistance, enhanced glass matrix for anti-contamination, suitable for severe corrosion areas such as Throat.
ZB-1681Z
AZS fused cast refractory with more than 36% ZrO₂, reduced glass phase and adjusted viscosity compared to ZB-1681. Low glass exudation, excellent anti-contamination properties, suitable for Superstructures of melting furnaces.
Chemical composition
| ZB-1681 | ZB-1691 | ZB-1711 | ZB-1681Z | |
|---|---|---|---|---|
| ZrO2 | 33% | 35% | 41% | 37% |
| Al2O3 | 52% | 50.8% | 45.8% | 50.8% |
| SiO2 | 13.5% | 12% | 12% | 10.5% |
| Na2O | 1.3% | 1.9% | 1.0% | 0.7% |
The quality data provided here are reference values and not guaranteed values. Quality assurance for your order will be determined separately through discussion. Please note that the listed quality data may be changed without prior notice.
Casting Type
| Mark | Name | Casting Type Description |
|---|---|---|
| RC | Regular Cast |
Standard casting type. The product has casting voids (shrinkage voids) at the bottom of the casting gate. |
| VF | Void Free |
After casting and cooling/solidification, the casting void portion is cut off, resulting in a product without voids. |
| ENC | End Cut |
For Sidewall blocks, most of the casting void portion is cut off using the same method as VF. |