Zirconia brick
Primarily used for medium-frequency induction furnaces for cemented carbides, linings for molten quartz furnaces, and working or insulating linings for ultra-high-temperature equipment operating at temperatures above 2000℃.
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Detailed introduction
Product Introduction
This product boasts high purity (ZrO₂ + stabilizer content ≥ 99%), excellent high-temperature resistance (operating temperature up to 2200℃), superior thermal insulation performance, and outstanding chemical stability. It is primarily used as a lining material for medium-frequency induction furnaces for cemented carbides, linings for molten quartz furnaces, and as working or insulating linings for ultra-high-temperature equipment operating at temperatures above 2000℃. The product has been adopted and promoted by more than 30 manufacturers nationwide and is also exported in significant quantities to countries such as the United States and Pakistan. Annual production capacity is 500 tons.
Product Parameters
| Project | Unit | Indicator Requirements |
Zirconia hollow sphere products (ZBB-98) |
Zirconia ceramic products (ZBB-98) |
|
| Volumetric density | g/cm³ | ≤3 | ≥5.5 | ||
| Room-temperature compressive strength | MPa | ≥ | 10 | - | |
| Load softening degree | ℃ (0.1 MPa, 0.4%) | - | ≥ | - | |
| Re-burning line variation rate | %(1600℃ × 3h) | - | - | - | |
| Thermal conductivity | W·(m·K)⁻¹ (average temperature 800℃) | ≤ | - | - | |
| Maximum operating temperature | Celsius | - | 2200 | 2200 | |
|
Chemical composition
|
Al₂O₃ | % | ≥ | - | - |
| SiO₂ | % | ≤ | 0.3 | 0.2 | |
| Zr(Hf)O₂ + CaO | % | ≥ | 99 | 99 | |
| Fe₂O₃ | % | ≤ | 0.2 | 0.1 | |
Collaboration Case
Gongyi Jinma Furnace Materials Co., Ltd. is wholeheartedly committed to providing customers with high-quality services and sincerely cooperating with friends from all walks of life to create a bright future together.
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