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High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems

    Buy cheap High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems from wholesalers
     
    Buy cheap High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems from wholesalers
    • Buy cheap High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems from wholesalers

    High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems

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    Brand Name : Dayoo
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    High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems

    High-Temperature Resistant Alumina Ceramic Insulation Tubes For High-Speed Rail Power Systems


    Product Introduction

    Our alumina ceramic insulation sleeves are manufactured from 99.5% high-purity alumina material, specifically designed for insulation protection in high-voltage electrical equipment and high-temperature environments. Featuring exceptional insulation strength (>20kV/mm) and hardness (above 1600HV), with special glazed surface treatment achieving arc resistance over 300 seconds, these sleeves represent the ideal replacement for traditional organic insulation tubes.

    Key Applications

    • Power Systems: High-voltage cable termination protection, substation insulation sleeves

    • New Energy: PV inverter insulation covers, wind power converter protection tubes

    • Industrial Equipment: Electric furnace heating element protection tubes, high-voltage test equipment insulation covers

    • Rail Transit: High-speed rail power system insulation, metro third rail protection

    • Laboratories: High-voltage experimental equipment insulation barriers, plasma equipment protection sleeves

    Core Advantages

    Superior Insulation: Volume resistivity >10¹⁶Ω·cm, withstand voltage >20kV/mm
    High-Temperature Resistance: Continuous operation up to 1200℃, short-term withstand 1500℃
    Arc Resistance: Meets highest grade of IEC 60672-1 standard
    Mechanical Strength: Flexural strength >400MPa, compressive strength >3000MPa
    Weather Resistance: No cracking in -60℃~1200℃ thermal cycling

    Technical Specifications

    ParameterStandard GradeEnhanced Grade
    Al₂O₃ Content99.5%99.8%
    Insulation Strength (kV/mm)2025
    CTE (×10⁻⁶/℃)7.57.0
    Flexural Strength (MPa)400500
    Standard Sizes (mm)Φ10-200Φ10-200
    Custom Length (mm)≤2000≤2000

    Manufacturing Process

    1. Powder Preparation: High-purity alumina powder (D50=0.6μm)

    2. Isostatic Pressing: 250MPa high-pressure forming for uniform density

    3. Atmosphere Sintering: 1650℃ nitrogen-protected sintering

    4. Precision Machining: Simultaneous OD/ID grinding (concentricity ≤0.01mm)

    5. Surface Treatment: High-temperature glazing (surface resistance >10¹⁴Ω)

    6. Full Inspection: 100% withstand voltage test + ultrasonic testing

    Installation Guidelines

    Professional Recommendations:

    • Clean inner/outer surfaces with isopropyl alcohol before installation

    • Recommend using ceramic-specific sealant for fixation

    • Avoid mechanical impact and localized stress concentration

    • Regular inspection of glaze layer integrity (recommended annually)

    • Not suitable for strong fluoride environments

    Service Commitment

    • Quality Warranty: 60-month extended warranty

    • Technical Support: Free insulation system design consultation

    • Rapid Response: Regional emergency spare parts inventory

    • Product Traceability: Laser-marked identification with 10-year quality records

    • Customization: Special sizes and structural designs available

    Technical FAQ

    Q: How to determine when replacement is needed?
    A: Replace when surface cracks exceed 10mm length or glaze layer loss >5% area

    Q: Selection for humid environments?
    A: Recommend moisture-proof models with special hydrophobic treatment

    Q: Compatibility with other insulation materials?
    A: Can be used with silicone rubber/epoxy resin when using special interface agents



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