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

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