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Shearing machining process for aging precipitation strengthened copper alloy material

A technology of precipitation strengthening and processing technology, applied in the field of material processing, can solve the problems of difficult operation, fluctuation of material performance, large energy consumption, etc., to achieve the effect of improving production efficiency, improving performance indicators, and shortening the preparation process

Active Publication Date: 2017-06-23
苏州中色华人铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Shearing machining process for aging precipitation strengthened copper alloy material
  • Shearing machining process for aging precipitation strengthened copper alloy material
  • Shearing machining process for aging precipitation strengthened copper alloy material

Examples

Experimental program
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no. 1 example

[0039] figure 1 The process flow chart of the shear processing process of the aging precipitation strengthening type copper alloy wire and profile material provided by the first embodiment of the present invention.

[0040] Such as figure 1 As shown, the present embodiment provides a shear processing technology for aging precipitation strengthening type copper alloy wire and type material, including the following steps:

[0041] Step 1, preparing materials; taking the chromium-zirconium-copper blank that has not been solid-solution treated;

[0042] The chromium-zirconium-copper billet is a straight bar or disc with a diameter of 8-40mm, and the chromium-zirconium-copper billet can be in a casting state, a rolling state, an extruding state or a forging state.

[0043] Step 2, pretreatment; the chromium-zirconium-copper blank in step 1 is subjected to surface treatment to remove impurities on the surface of the chromium-zirconium-copper blank;

[0044] The surface treatment ...

no. 2 example

[0063] figure 2 The process flow chart of the shear processing process of the aging precipitation strengthening type copper alloy wire and type material provided for the second embodiment of the present invention.

[0064] Such as figure 2 As shown, the present embodiment provides a shear processing technology for aging precipitation strengthening type copper alloy wire and type material, including the following steps:

[0065] Step 1: Prepare materials; take a chromium bronze blank that has not been solution-treated; the chromium bronze blank is a straight bar or a disc with a diameter of 8-40mm, and the conventional size includes but is not limited to: 8mm, 20mm, 25mm, and 30mm. The chrome bronze billet can be cast, rolled, extruded or forged.

[0066] Step 2, shear plastic processing; the pretreated chromium bronze billet is subjected to equal-channel extrusion treatment; equal-channel extrusion, as a method of strong plastic deformation, can refine the grain size of th...

no. 3 example

[0078] image 3 The third embodiment of the present invention provides a process flow chart of the shear processing process of the aging precipitation strengthening type copper alloy wire and profile material.

[0079] Such as image 3 As shown, the present embodiment provides a shear processing technology for aging precipitation strengthening type copper alloy wire and type material, including the following steps:

[0080] Step 1, prepare materials; get the zirconium bronze blank that has not been solid solution treated;

[0081] The zirconium bronze blank is a straight bar or a disc with a diameter of 8-40 mm, and the zirconium bronze blank can be in a cast state, a rolled state, an extruded state or a forged state.

[0082] Step 2, shear plastic processing; input the pretreated zirconium bronze billet into a continuous extrusion machine for single or multiple continuous extrusion;

[0083] The shear plastic working of described step 2 comprises the following steps succes...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21C37/00C22F1/08
Inventor 李华清
Owner 苏州中色华人铜业有限公司
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