High-strength and high-conductivity copper alloy material

Abstract

The invention discloses a high-strength and high-conductivity copper alloy material. A high-strength and high-conductivity copper alloy comprises 0.6 wt%-0.8 wt% of Cr, 0.06 wt%-0.08 wt% of Be, 0.18 wt%-0.2 wt% of Ni, 0.03 wt%-0.04 wt% of Si, 0.08%-0.1 wt% of Zn, 1.3 wt%-1.5 wt% of Ag and the balance Cu. On component design, an alloy element is selected to be added in the copper alloy material, wherein the influence on the electric conduction capability of the copper alloy is very small when the content of the alloy element is small; on the premise that the electric conduction performance of a copper alloy base body is guaranteed, solution strengthening, age hardening and other factors of the copper alloy are comprehensively considered, and grain refinement of an alloy phase is facilitated; under the condition that it is guaranteed that the electric conduction performance of the copper alloy material is not reduced, the mechanical performance of the copper alloy is greatly improved, and the problem of the contradiction between the strength and electric conductivity of a high-strength and high-conductivity copper alloy base body is effectively solved; and meanwhile good high-temperature resisting performance is achieved, and heat stability is good.

Description

technical field [0001] The invention relates to the technical field of copper alloy processing, in particular to a high-strength and high-conductivity copper alloy material. Background technique [0002] Copper alloys with high strength and high conductivity are also called high-strength and high-conductivity copper alloys. The rapid development of high-strength and high-conductivity copper alloys in aerospace, high-speed trains, electronic information and other industries has opened up a broader application field for high-end copper alloy products. High-strength and high-conductivity copper alloys are widely used in integrated circuits, high-voltage switches and other fields due to their good comprehensive properties. At present, the application of high-strength and high-conductivity copper alloy materials is concentrated in many aspects such as high-speed train contact lines and lead frames for integrated circuits. End rings for nuclear power, guide rails for electromagne...

AI Technical Summary

Problems solved by technology

[0003] The strength and conductivity of copper alloys are a pair of contradictions. No matter which method is used to increase the strength of copper alloys, the conductivity will decrease to a certain extent. Manufacturing high-strength and high-conductivity copper alloys has a great technical advantage. difficulty