Alumina Ceramic Functional Components For Precision Instruments: Core Elements Of High-End Equipment

Alumina Ceramic Functional Components For Precision Instruments: Core Elements Of High-End Equipment

Product Introduction

Alumina ceramic functional components are precision functional elements made from high-purity (99%-99.7%) alumina material, covering critical parts such as bearings, seals, and insulating supports. These products achieve micron-level accuracy through precision machining and possess excellent comprehensive performance, making them indispensable core components in precision instruments and high-end electronic equipment.

Main Applications

• Precision Bearings: High-speed spindle bearings, precision instrument bearings, medical device bearings

• Sealing Elements: Mechanical seals for chemical pumps, seals for high-temperature equipment, vacuum system seals

• Insulating Supports: Circuit board insulating supports, electronic component insulating bases, high-voltage equipment insulating parts

• Semiconductor Equipment: Wafer transfer robotic arms, vacuum chamber components, etching equipment accessories

• Measuring Instruments: Precision measurement platforms, optical instrument supports, sensor packaging parts

Core Advantages

• Ultra-High Hardness: Vickers hardness ≥1700 HV, wear resistance is more than 10 times that of bearing steel

• Excellent Insulation: Volume resistivity >10¹⁴ Ω·cm, dielectric strength 15-20 kV/mm

• Corrosion Resistance: Resistant to acids, alkalis, and chemical corrosion, with long service life

• Low Thermal Expansion: Thermal expansion coefficient 7.2×10⁻⁶/K, excellent dimensional stability

• High Rigidity: Elastic modulus 380 GPa, ensuring long-term operating accuracy

• Vacuum Compatibility: Low outgassing rate, suitable for high vacuum environments

Specification Parameter Table

Process Flow

Raw material selection → Formula optimization → Spray granulation → Isostatic pressing → Precision machining → High-temperature sintering → Laser processing → Precision polishing → Ultrasonic cleaning → Quality inspection → Vacuum packaging

Usage Instructions

1. Cleaning should be performed in an ultra-clean environment before installation

2. Use specialized tools for installation to avoid direct contact with metal tools

3. It is recommended to use with appropriate lubricants (such as dry film lubrication)

4. Operating temperature changes should be controlled within ±5°C per hour

5. Regularly inspect operating status and replace worn parts in a timely manner

After-Sales Service

• 24-month quality warranty period

• Professional technical team provides application support

• 72-hour rapid response mechanism

• Free technical training and selection guidance

FAQ

Q: What are the advantages of ceramic bearings compared to steel bearings?
A: They offer higher hardness, better corrosion resistance, lighter weight, and longer service life, making them particularly suitable for high-speed and special environment applications.

Q: What is the maximum processable size?
A: The maximum outer diameter for standard products is 200mm, and custom sizes up to 500mm are available for special requirements.

Q: Is complex shape customization supported?
A: Yes, we support customization of various complex-shaped functional components according to customer requirements.

Q: How to ensure sealing performance?
A: It is recommended to install in a constant temperature and humidity environment, use specialized sealing paste, and strictly follow installation specifications.