Alumina Ceramic Insulators for Electrical Equipment
The electrical application required rigid insulating components that withstand working temperatures up to 1800 C while maintaining mechanical strength and resistance to acid and alkali corrosion.
Customer Pain Points
- Conventional polymer insulators degrade rapidly under operating conditions exceeding 1000 C
- Electrical assembly components require precise dimensions across plates from 7 mm to 40 mm thick
- High-frequency terminal connections demand corrosion-resistant materials to prevent thermal degradation
- Surface contamination interferes with thick film integrated circuit applications unless thoroughly cleared
Manufacturing Process
- 1
Raw alumina material formulation matched to purity targets between 92% and 99.7%
- 2
Forming plate and insulator profiles within specified diameter ranges of 10 mm to 850 mm
- 3
High-temperature sintering to achieve 3.0 to 3.96 g/cm3 density and heat resistance to 1800 C
- 4
Machining to customer data requirements and print tolerances
- 5
Ultrasonic cleaning to clear processing residues before downstream integration
- 6
Final packing in cartons, crates or boxes as requested
Client Background
An equipment builder sourcing structural electrical insulation parts for power industry apparatus. The client name and commercial terms are not disclosed, so this review focuses solely on documented material requirements and part geometry.
Project Challenge
The electrical application required rigid insulating components that withstand working temperatures up to 1800 C while maintaining mechanical strength and resistance to acid and alkali corrosion.
Our Solution
Alumina ceramic components were produced from 92% to 99.7% purity Al2O3 according to the customer's drawing, offering a density of 3.0 to 3.96 g/cm3, followed by required ultrasonic cleaning.
Supply Chain Coordination
Alumina material preparation, forming, sintering and mandatory ultrasonic cleaning were managed through Hangzhou Nowarun Industrial Co., Ltd. to ensure material integrity under ISO 9001 and ROHS compliance.
Quality Control
Insulators were verified for density, dimensions matching drawing limits, surface integrity against corrosion, and verified through ultrasonic cleaning prior to release.
Final Result
Custom alumina ceramic plates and terminal bodies delivered to drawing dimensions, offering high mechanical strength, low thermal conductivity and stable operation up to 1800 C.
Customer Benefit
The purchaser secures components capable of continuous duty between 1000 C and 1800 C without dielectric breakdown or chemical degradation in harsh electrical operating environments.
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