High Purity Fused Cast Zirconia Block (RTK-Z9540) from China Suppliers - Ideal for Glass Furnaces, Factory Direct
Brief Introduction
Chemical Composition
| Chemical Composition and Mineral Composition | ||
|---|---|---|
| Chemical Composition (%) | ZrO₂ | 89.0 |
| SiO₂ | 9.1 | |
| Al₂O₃ | 1.5 | |
| Na₂O | 0.1 | |
| Others | 0.3 | |
| Mineral Composition (%) | Baddeleyite | 88 |
| Vitreous Phase | 12 | |
Physical Property
| Physical Property | |
|---|---|
| Normal temperature compressive strength (Mpa) | 600 |
| Bulk density (g/cm³) | 5 |
| Apparent porosity (%) | ≤1 |
| Corrosion resistance of molten glass at three-phase interface mm/24h | ≤0.8 |
| Exudation amount of vitreous phase | ≤0.4 |
| Thermal conductivity W/(mk) At 600°C At 1000°C |
3.0 2.8 |
| Resistivity (Ω·m) At 1500°C At 1600°C |
5.0 2.4 |
| Coefficient of thermal expansion At 1000°C At 1500°C |
0.65 0.10 |
Frequently Asked Questions (FAQ)
What are fused cast zirconia blocks and how are they made?
Fused cast zirconia blocks are high zirconia refractories produced by melting high purity raw materials through a special casting process using a PLC programmed special electric furnace and a special material incubator.
What models are included in the high zirconium brick series?
The series mainly includes RTK-Z9540 (with a zirconium content of >89%) and RTK-Z9510 (with a zirconium content of >93%).
What are the benefits of the crystalline structure of these blocks?
The crystalline structure is primarily composed of baddeleyite, which grants the blocks extremely high corrosion resistance and low foaming rate characteristics. These properties help prevent the contamination of molten glass.
Where can fused cast zirconia blocks be applied?
They are widely used in various glass furnaces, particularly high-quality and special glass furnaces such as liquid crystal substrate glass furnaces, high alumina glass furnaces, borosilicate glass furnaces, halogen lighting glass furnaces, glass ceramic furnaces, and glass fiber furnaces.
What is the chemical composition of the RTK-Z9540 block?
The chemical composition of RTK-Z9540 consists of ZrO₂ (89.0%), SiO₂ (9.1%), Al₂O₃ (1.5%), Na₂O (0.1%), and other elements (0.3%).
What are the key physical properties of these zirconia blocks?
Key physical properties include a normal temperature compressive strength of 600 Mpa, a bulk density of 5 g/cm³, apparent porosity of ≤1%, and a vitreous phase exudation amount of ≤0.4.