A deformed zinc-based alloy material and its preparation method and application

Abstract

A deformed zinc-based alloy material and a preparation method and use thereof. The alloy comprises (wt%): 3％≤Al≤15％, and 0.1％≤Cu≤4.8％, with the balance being Zn and inevitable impurities. The microstructure of the zinc-based alloy material comprises an α phase and an η phase, wherein the α phase is an Al-substituted-by-Zn solid solution with Al as a matrix, and the η phase is a Zn-substituted-by-Cu and Al solid solution with Zn as a matrix.

Description

technical field [0001] The invention relates to a zinc-based alloy material and its application field, in particular to a medium-strength, easy-to-machine deformed zinc-based alloy material and its preparation method and application. The alloy material can be applied to AC / DC power plugs and FC communication connections Devices and other electronics, electrical industries and other related industries. Background technique [0002] Copper alloys are mostly used as materials for plugs and connectors in the traditional electronics and electrical industries, because copper alloys have excellent machinability and electrical conductivity. The important reason why copper alloys are easy to machine is that copper alloys are often added with Pb, Bi, Sb and other elements that improve the processing performance. These elements form free particles or intermetallic compounds at the grain boundaries of copper alloys, which play a role in the cutting process. To the role of chip breaking...

AI Technical Summary

Problems solved by technology

Traditional zinc alloys are mainly cast zinc alloys, whose microstructure contains brittle intermetallic compound phases, and its solid solubility is relatively low, resulting in low strength of zinc alloys, especially the disadvantages of difficult subsequent machining

In order to meet the machinability requirements of zinc alloys, a few wrought zinc alloys have been developed. However, the general wrought zinc alloys have defects and deficiencies such as high production cost, low yield, poor dimensional stability, and poor mechanical properties. Pb, Bi, Sb and other elements in copper alloys that are beneficial to improving machinability are harmful to zinc alloys, and are generally controlled as impurity elements in zinc alloys

Although the machinability of existing wrought zinc alloys has been improved to a certain extent, the subsequent processing of wrought zinc alloys has not been fundamentally solved. In practical applications, it still cannot meet the requirements of modern machine tools for the cutting performance of zinc alloys.

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