一种具有三维连续网状多主元合金骨架的铜基触头材料及制备方法和应用
By modifying the surface of copper powder and WTaMoNbTi alloy powder and preparing core-shell structures, combined with discharge plasma sintering technology, the problems of density and interfacial bonding of copper-based contact materials were solved, thereby improving the mechanical performance of high-voltage circuit breakers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing copper-based contact materials used in high-voltage circuit breakers suffer from defects such as insufficient density, poor interfacial bonding, and uneven material composition, leading to severe mechanical wear and failing to meet the performance requirements of high-voltage circuit breakers.
Surface modification of copper powder and WTaMoNbTi alloy powder was carried out using polyvinyl alcohol and sodium hydroxymethyl cellulose to form core-shell structured Cu@WTaMoNbTi powder, and copper-based contact material with a three-dimensional continuous network multi-principal element alloy skeleton was prepared by spark plasma sintering technology.
It improves the density and interfacial bonding performance of copper-based contact materials, reduces mechanical wear, and extends the service life of high-voltage circuit breaker breaking elements.
Smart Images
Figure CN122406015A_ABST