Copper alloy capable of being riveted and cut and preparation method and application of copper alloy

Abstract

The invention discloses a copper alloy capable of being riveted and cut. The copper alloy comprises, by weight percent, 59%-61% of Cu, 0.005%-0.1% of Pb, 0.005%-0.15% of element X1, 0.001%-0.05% of element X2 and the balance Zn, wherein the element X1 is one or more in elements Ni, Mn, Fe and Sn, and the element X2 element is one or more in elements P and Si. By controlling addition of the alloy elements, compared with common H62 brass, the copper alloy has the advantages that the cutting performance is improved, and the cutting efficiency can be improved by more than 30%. In the copper alloy, the tensile strength ranges from 500 MPa to 620 MPa, the percentage elongation after fracture ranges from 12% to 18%, the HV hardness ranges from 140 to 170, the electric conductivity ranges from 20% IACS to 26% IACS, and the copper alloy can be machined into rods, wires, plate strips and other products and is widely applied to the fields of electrical plugs, connectors, low-voltage switches and the like due to the fact that the copper alloy has the characteristics of being capable of being riveted and cut.

Description

technical field [0001] The invention relates to a copper alloy, in particular to a riveting and cutting-processable copper alloy and its preparation method and application. The copper alloy can be applied to fields such as electrical plugs, connectors, and low-voltage switches. Background technique [0002] Because lead brass has very good machinability, it is widely used in many industries and fields. However, with the rapid development of the times, people have higher and higher requirements for their own living environment, and green and environmental protection have become an inevitable trend of future development. [0003] The previous EU RoHS Act exempted lead elements from raw materials used in some industries (such as processing electrical appliances, medical equipment, toys, entertainment and sports equipment), but after the expiration of July 1, 2021, the exemption did not continue. Therefore, the lead brass used in some industries will inevitably be replaced by l...

AI Technical Summary

Problems solved by technology

However, as an alternative, the ordinary H62 product cannot meet the customer’s cutting requirements due to its poor cutting performance, while the H58 product with lower copper content cannot meet the customer’s riveting requirements due to its relatively poor plasticity.

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