This product is a precision structural part made of high-purity alumina ceramic (Al₂O₃ content ≥ 95%). It is manufactured using the cold isostatic pressing forming and high-temperature sintering processes. It has a milky-white cylindrical shape, with a smooth and flawless inner wall. The outer wall is equipped with symmetrical clamping grooves and strip-shaped through holes. It possesses excellent mechanical strength and high-temperature resistance performance.
- Hardness reaches HRA85 - 90, and wear resistance is 3 - 5 times better than that of metal materials.
- Resistant to high temperatures up to 1600℃, with a thermal expansion coefficient as low as 7.5×10⁻⁶/℃.
- Insulation resistance ＞ 10¹⁴Ω・cm, dielectric loss ＜ 0.001.
- Density ≥ 3.6g/cm³, water absorption rate ＜ 0.01%.
Motor shaft sleeves for new energy vehicles, semiconductor wafer carriers, guide wheels for photovoltaic silicon wafer cutting, puncture components for medical devices.
Raw material proportioning → Ball milling to make pulp → Spray granulation → Cold isostatic pressing forming → Debinding and sintering (1650℃) → Precision CNC machining → Ultrasonic cleaning → Laser detection.
- Avoid knocking with hard objects during installation. It is recommended to use special tooling for positioning.
- The working temperature should not exceed 1500℃, and sudden thermal shocks should be avoided.
- When cleaning, use absolute ethanol for ultrasonic cleaning. Strong acids and alkalis are prohibited.
Provide a 1-year quality guarantee, support free size re-inspection. For non-human-caused damages, free return and exchange are available.
Q: Can special sizes be customized?
A: Customization within the range of 10 - 200mm in diameter is supported, with a lead time of 7 - 15 days.
