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Hardness HRA90-92 Alumina Ceramic Ring

    Buy cheap Hardness HRA90-92 Alumina Ceramic Ring from wholesalers
     
    Buy cheap Hardness HRA90-92 Alumina Ceramic Ring from wholesalers
    • Buy cheap Hardness HRA90-92 Alumina Ceramic Ring from wholesalers

    Hardness HRA90-92 Alumina Ceramic Ring

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    Certification : GB/T 19001-2016/ISO 9001:2015
    Model Number : Depend on the Actual Product
    Supply Ability : Factory
    Brand Name : Dayoo
    Price : As Negotiated and Agreed
    Delivery Time : depend on the actual product
    Payment Terms : FOB
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    Hardness HRA90-92 Alumina Ceramic Ring

    Hardness HRA90-92 Alumina Ceramic Ring


    [Product Introduction]

    This high-precision alumina ceramic ring component (purity ≥95%) is manufactured using isostatic pressing technology, featuring an ivory-white porcelain luster with a precision structure consisting of an annular body and symmetrically distributed grooves. Sintered at 1600°C, the product achieves a density of 3.85g/cm³ with surface roughness Ra≤0.4μm. Rounded edge treatment ensures installation safety, making it suitable for core transmission systems in automation equipment.

    [Core Applications]

    1. Precision Machinery: High-speed motor bearing retainers, servo system positioning rings
    2. Electronic Semiconductors: IC test fixture insulation bases, wafer carrier positioning components
    3. New Energy Sector: Lithium battery pole piece cutting dies, hydrogen fuel cell bipolar plate frames
    4. Medical Devices: Minimally invasive surgical instrument guide sleeves, dental implant abutment connectors

    [Performance Advantages]

    ✅ Physical Properties: Hardness HRA90-92 (sapphire-comparable), flexural strength ≥350MPa
    ✅ Temperature Resistance: Operating range -200°C~1600°C, thermal expansion coefficient 6.8×10⁻⁶/°C
    ✅ Chemical Stability: Resistant to strong acids/alkalis (except hydrofluoric acid), insulation resistance >10¹⁴Ω
    ✅ Precision Control: Dimensional tolerance ±0.01mm, geometric tolerance ≤0.02mm

    [Specification Parameter Table]

    Parameter ItemIndex ValueTest Standard
    Outer Diameterφ55±0.02mmGB/T 2848-2015
    Inner Diameterφ25±0.01mmGB/T 2848-2015
    Thickness10±0.01mmGB/T 2848-2015
    Groove Quantity6 sets symmetricCustom Drawing
    Surface FinishRa0.4μmGB/T 1031-2009
    Compressive Strength≥3000MPaGB/T 4740-1999

    [Production Process]

    Raw material proportioning → Ball milling → Spray granulation → Isostatic pressing → Degreasing → High-temperature sintering → CNC precision machining → Ultrasonic cleaning → Laser inspection → Vacuum packaging

    [Usage Instructions]

    1. Use dedicated ceramic clamping tools during installation to prevent impact damage
    2. Control temperature changes to ≤5℃/min in working environment
    3. Clean with anhydrous ethanol ultrasonic cleaning (power ≤40kHz)
    4. Avoid storage with metal hard objects; use anti-static packaging

    [After-Sales Service]

    ✓ 7-day no-reason return policy (unopened products)
    ✓ Free replacement for non-human damage within 1-year warranty
    ✓ Customization service available (MOQ 50 pieces)
    ✓ Third-party material testing reports (SGS/CTI optional)

    [FAQ]

    Q: Does the product support high-temperature sterilization?
    A: Withstands 134℃ autoclave sterilization (complies with ISO 17665 standard)

    Q: Is RoHS certification available?
    A: Full product range passes RoHS 2.0 ten-item testing (Report No.: ENV20230615012)


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