Dayoo Advanced Ceramic Co.,Ltd
Dayoo Advanced Ceramic Co.,Ltd
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High-Purity Alumina Ceramic Components For Precision Positioning Equipment In Automation Systems
This series of alumina ceramic transmission components and positioning turntables are manufactured from 99.5% high-purity Al₂O₃ material, featuring ultra-high hardness (HV1500) and end-face runout accuracy (≤0.005mm/m). Through specialized grain boundary control technology, the products achieve exceptional wear resistance (wear rate <10⁻⁷mm³/N·m) while maintaining high strength, specifically designed for precision transmission systems and high-accuracy positioning equipment.
Semiconductor Equipment: Lithography precision turntables, wafer transfer robotic arm joints
Automation Systems: Industrial robot harmonic drive components, linear motor positioning stages
Medical Devices: Surgical robot transmission gears, CT scanner rotating bearings
Optical Instruments: LiDAR rotating components, astronomical telescope azimuth turntables
Measurement Equipment: CMM rotary tables, roundness tester spindles
| Characteristic | Technical Specification | Application Value |
|---|---|---|
| Wear Resistance | >5 million cycles lifespan | Reduces maintenance frequency |
| Dimensional Stability | Thermal deformation <1μm/100℃ | Ensures long-term positioning accuracy |
| Corrosion Resistance | Withstands pH1-14 media | Suitable for harsh environments |
| Operation Smoothness | Vibration <0.1μm RMS | Improves system resolution |
| Parameter | Standard Grade | High-Precision Grade |
|---|---|---|
| Material Purity | 99.5% Al₂O₃ | 99.9% Al₂O₃ |
| Hardness | HV1500 | HV1800 |
| Flatness | ≤0.01mm | ≤0.003mm |
| Roundness | ≤0.005mm | ≤0.001mm |
| Friction Coefficient | 0.12 | 0.08 (polished surface) |
| Maximum Rotation Speed | 3000rpm | 5000rpm |
Powder Processing: 0.2μm high-purity powder with grain boundary control additives
Forming Technology:
Isostatic pressing (200MPa)
Injection molding (complex gear profiles)
Sintering Technology: 1650℃ hydrogen atmosphere sintering + HIP
Precision Machining:
5-axis grinding (profile accuracy ±0.002mm)
Ultra-precision polishing (Ra≤0.05μm)
Inspection Process:
Laser interferometer dynamic balance testing
Full-dimension CMM measurement
⚠ Mechanical Assembly Requirements:
Recommended fit tolerance H6/g5
Thermal balancing required before assembly (temperature gradient <2℃/min)
50-hour run-in period (load ≤30% rated value)
⚠ Usage Limitations:
Dry running prohibited (lubrication required)
Avoid axial impact loads
Operating environment humidity <80%RH
Technical Support: Free dynamic simulation analysis reports
Rapid Response: 72-hour fault diagnosis service
Custom Development: Non-standard gear profiles/hole patterns supported
Q: Advantages over metal transmission components?
A: 40% lighter weight, non-magnetic, corrosion resistant, 3-5x longer lifespan
Q: Maximum producible diameter?
A: Standard size Φ500mm, special orders up to Φ800mm
Q: Conductive treatment available?
A: Antistatic versions with surface resistance 10⁴-10⁸Ω
Q: Extreme temperature adaptability?
A: Standard -60℃~800℃, special treatment up to 1200℃
