Precision-Engineered Alumina Ceramic Bars For High-Speed Trains Metro Power Systems And Industrial Control Equipment

Brand Name:Dayoo
Minimum Order Quantity:Negotiate
Delivery Time:Negotiable
Payment Terms:Negotiable
Place of Origin:Made In China,Zhejiang,Jinhua
Price:Negotiate
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Location: Jinhua Zhejiang China
Address: No. 6, Shuangjin Street, Qiubin Industrial City, Qiubin Street, Wucheng District, Jinhua, Zhejiang
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Product Details

Precision-Engineered Alumina Ceramic Bars For High-Speed Trains Metro Power Systems And Industrial Control Equipment


Product Introduction

Our alumina ceramic insulation support bars are precision-engineered from 99% high-purity alumina material, specifically designed for insulation support requirements in high-voltage electrical equipment. Featuring hardness above HV1500 and insulation strength >15kV/mm, with specially polished surfaces that withstand over 100,000 mechanical friction cycles, these bars are the ideal replacement for traditional epoxy resin insulation components.

Primary Applications

  • Power Equipment: High-voltage switchgear insulation supports, circuit breaker isolation bars

  • New Energy: PV inverter insulation brackets, wind power converter isolation parts

  • Rail Transit: High-speed train pantograph insulation supports, metro power supply systems

  • Industrial Control: Frequency converter insulation plates, large motor insulation frames

  • Laboratory Equipment: High-voltage test equipment insulation brackets

Key Advantages

Superior Insulation: Volume resistivity >10¹⁵Ω·cm
Arc Resistance: Withstands arcing for over 180 seconds
Mechanical Strength: Flexural strength >350MPa
Weather Resistance: Stable performance from -60℃ to 800℃
Long Service Life: Operational lifespan exceeding 20 years

Technical Specifications

ParameterStandard GradeEnhanced Grade
Material Purity99% Al₂O₃99.5% Al₂O₃
Insulation Strength15kV/mm18kV/mm
Flexural Strength350MPa400MPa
Thermal Expansion7.5×10⁻⁶/℃7.2×10⁻⁶/℃
Standard Thickness5-20mm5-20mm
Custom Length≤1000mm≤1000mm

Precision Manufacturing Process

  1. Powder Processing: High-purity alumina powder (D50=0.5μm)

  2. Dry Pressing: 200-ton hydraulic press molding

  3. Atmosphere Sintering: 1600℃ nitrogen-protected sintering

  4. Precision Machining: Surface grinding + chamfering

  5. Laser Marking: Unique serial numbering for each product

  6. Full Inspection: Withstand voltage test + dimensional inspection

Installation Guidelines

Professional Recommendations:

  • Clean contact surfaces with anhydrous ethanol before installation

  • Recommend using ceramic-specific adhesives for fixation

  • Fastening bolt torque should not exceed 8N·m

  • Avoid surface scratches from sharp objects

  • Regular inspection for cracks (recommended every 2 years)

Service Commitment

  • Technical Support: Insulation system design solutions

  • Emergency Response: 72-hour rapid replenishment

  • Product Traceability: 10-year quality records available

  • Customization: Non-standard sizes and structural designs supported

Technical FAQ

Q: How to determine when replacement is needed?
A: Replace when surface cracks exceed 5mm in length or 0.2mm in depth

Q: Usage in humid environments?
A: Recommend moisture-proof models with glazed surface treatment

Q: Compatibility with other insulation materials?
A: Can be used with silicone rubber, epoxy resin and other materials



China Precision-Engineered Alumina Ceramic Bars For High-Speed Trains Metro Power Systems And Industrial Control Equipment supplier

Precision-Engineered Alumina Ceramic Bars For High-Speed Trains Metro Power Systems And Industrial Control Equipment

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