Copper base material for contactor

Abstract

The copper base material for contactor features its components including tungsten carbide 0-10 wt%, Y and / or Zr 0.1-1 wt% and La 0.01-2 wt% except Cu. The material has high anticorrosive and antioxidant performance, low resistivity, no pollution, low production cost and excellent performance.

Description

Technical field [0001] The invention relates to an alloy material, in particular to a copper-based material for a contact. Background technique [0002] Silver has always occupied a dominant position as an electrical contact material and is used in a large amount. Silver is a precious metal, and my country is a country short of silver resources. For this reason, some people, especially in recent years, have explored the use of copper-based alloys instead of silver as contact materials. In the Chinese patent literature, there have been many inventions about copper-based materials for contacts, such as: "copper-based alloy electrical contact material" (ZL87103076, CN1003894B), "copper-based low-voltage electrical contact alloy material" (ZL94102452, CN1037859C), "high welding resistance copper-based silver-free electrical contact composite material" (ZL96101833, CN1047867C), "copper-based powder alloy electrical contact material" (ZL96115149, CN1055732C), "copper alloy conta...

AI Technical Summary

Problems solved by technology

However, it has not yet achieved both high corrosion resistance and oxidation resistance, good arc extinguishing performance, no pollution, and low manufacturing cost; moreover, the introduction of different components will lead to the phenomenon that the necessary properties will ebb and flow. , did not achieve the optimal combination of performance and composition, which affected the popularization and application of materials