Dayoo Advanced Ceramic Co.,Ltd
Dayoo Advanced Ceramic Co.,Ltd
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Alumina Ceramic Fixing Bracket: High-Reliability Industrial Support Solution
Introduction
Alumina ceramic fixing brackets are precision structural components made from high-purity alumina (Al₂O₃), offering excellent mechanical strength, wear resistance, and insulation properties. With high hardness, corrosion resistance, and good thermal stability, they are widely used for fixing, supporting, and insulating in various harsh industrial environments.
Core Advantages
High Mechanical Strength: Compressive strength up to 2500 MPa, strong load-bearing capacity
Excellent Insulation: Volume resistivity >10¹⁴ Ω·cm, high-voltage insulation resistance
High-Temperature Resistance: Long-term service temperature up to 1600°C
Wear and Corrosion Resistance: High hardness, resistant to acid and alkali corrosion
Dimensional Stability: Low thermal expansion coefficient, high dimensional accuracy
Main Applications
Semiconductor Equipment: Wafer carriers, process fixtures
Electrical Power: High-voltage insulation brackets, switch support components
High-Temperature Furnaces: Hearth supports, thermocouple protection sleeves
Electronic Devices: Circuit board support brackets, heat dissipation substrates
Measuring Instruments: Precision instrument brackets, insulation bases
Specification Table
| Performance Parameter | Units | Technical Specifications |
|---|---|---|
| Alumina Content | % | 96-99.6 |
| Density | g/cm³ | 3.7-3.9 |
| Compressive Strength | MPa | 2500-3800 |
| Flexural Strength | MPa | 300-400 |
| Hardness | HRA | 85-89 |
| Service Temperature | °C | ≤1600 |
| Thermal Expansion Coefficient | ×10⁻⁶/°C | 7.2-8.0 |
| Volume Resistivity | Ω·cm | >10¹⁴ |
Manufacturing Process
Raw Material Preparation: High-purity alumina powder + additives
Forming Processing: Dry pressing/isostatic pressing molding
High-Temperature Sintering: Sintering at 1750-1850°C
Precision Machining: Grinding with diamond tools
Quality Inspection: Dimensional accuracy testing
Surface Treatment: Polishing/metallization treatment
Usage Instructions
Use specialized tools during installation, avoid impact
Reserve thermal expansion gaps when mating with metal parts
Keep contact surfaces clean and flat
Avoid local stress concentration
Regularly check fastening status
After-Sales Service
12-month quality warranty period
Professional technical support
Free replacement for non-human damage
Rapid response to customer needs
Customized services provided
FAQ
Q: What is the maximum service temperature of alumina brackets?
A: Long-term use at 1600°C, short-term up to 1800°C.
Q: Are they resistant to hydrofluoric acid corrosion?
A: Not resistant to hydrofluoric acid, avoid contact.
Q: What should be noted during installation?
A: Use a torque wrench and install according to recommended torque.
Q: Can special shapes be processed?
A: Customization of various complex shapes based on drawings is supported.