Key Features
- High electrical and thermal conductivity for rapid heat dissipation.
- Exceptional arc erosion resistance for high-current switching.
- Uniform microstructure due to PM infiltration process.
- Custom W-Cu grades (W70Cu30, W80Cu20, etc.) tailored to application.
- Tight dimensional tolerances suitable for automated assembly.
- Long lifespan under continuous mechanical and thermal cycling.
- Supports plating and surface treatments for environmental protection.
Overview
NEWLIFE's Tungsten Copper (W-Cu) Electrical Contacts are engineered for high-current, high-voltage switching applications. Combining the superior arc-resistance of tungsten with the excellent electrical and thermal conductivity of copper, these contacts maintain reliable performance under repeated switching cycles.
Key Points:
High-density W-Cu alloys (W70–W90Cu) for mechanical stability.
Uniform copper distribution achieved through PM infiltration.
Reduced contact erosion and stable conductivity over long lifetimes.
Traditional copper or silver contacts often fail under repeated arcing, leading to pitting, welding, or rapid wear. NEWLIFE's PM/MIM W-Cu contacts leverage self-developed powders and infiltration techniques, achieving near-net-shape geometry with uniform microstructure, higher durability, and superior electrical performance. This ensures long service life, reduced maintenance, and lower replacement costs.
Applications
- High-voltage circuit breakers and switches.
- Power distribution systems.
- Electrical switchgear for industrial and utility applications.
- Automated contact assemblies requiring precision alignment.
- Aerospace and defense electrical systems.
Engineering Advantage
Material Performance: Self-developed W-Cu powders ensure consistent density, mechanical strength, and electrical conductivity, minimizing failure risk.
Cost Efficiency: Near-net-shape PM/MIM forming reduces post-machining, scrap, and production time compared with machined tungsten-copper blocks.
Design Flexibility: Complex contact shapes and fine tolerances achievable without compromising microstructural integrity.
Long-Term Reliability: Stable W-Cu microstructure resists thermal cycling and repeated arcing, outperforming traditional copper or silver contacts in high-current environments.
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