Shearing machining process for aging precipitation strengthened copper alloy material

Abstract

The invention provides a shearing machining process for an aging precipitation strengthened copper alloy wire and profile and belongs to the field of material machining. The shearing machining process comprises the following steps that step one, material preparation is conducted, specifically, an aging precipitation strengthened copper alloy blank is taken and not subjected to solution treatment anymore; step two, shearing plastic machining is conducted, specifically, the aging precipitation strengthened copper alloy blank is input into a continuous extrusion machine to be subjected to a single time or multiple times of continuous extrusion; step three, reducing plastic machining is conducted, specifically, the material subjected to shearing plastic machining treatment is machined into a wire and a profile with the proper section and diameter; step four, aging heat treatment is conducted, specifically, the wire and profile subjected to reducing plastic machining is subjected to aging heat treatment to increasing the electric conductivity of the wire and profile; and step five, finishing sizing is conducted, specifically, the wire and profile subjected to aging heat treatment is subjected to rolling, forging or stretching machining to enable the section size or diameter of the wire and profile to reach a target value. By adoption of the shearing machining process, solution treatment is not needed, the preparation process is shortened, the technical problems that the solution temperature is not uniform, and solution treatment rapid quenching is difficult to achieve are solved, and material performance fluctuation caused by the technical problems is further avoided.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a shearing processing technology for aging precipitation strengthening type copper alloy wire and type material. Background technique [0002] Chromium-zirconium copper (CuCrZr) chemical composition (mass fraction) % (Cr: 0.05-1.5, Zr: 0.02-0.4) hardness ≥ 78HRB, conductivity ≥ 43ms / m. Chromium-zirconium copper has high strength and hardness, good electrical and thermal conductivity, good wear resistance and wear reduction, after aging treatment, the hardness, strength, electrical conductivity and thermal conductivity are all significantly improved, and it is easy to weld. Widely used in motor commutators, spot welders, seam welders, electrodes for butt welders, and other parts that require strength, hardness, conductivity, and pad guidance at high temperatures. And its most frequently used forms are line and type. [0003] The traditional chromium zirconium copper processing...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a shearing processing technology for aging precipitation strengthening type copper alloy wire and profile material, so as to solve the problem that solid solution treatment is required in the existing production technology, which leads to large energy consumption, difficult operation and easy to cause The problem of fluctuating material properties

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