Hard copper busbar annealing method, processed hard copper busbar product and conductive part

An annealing treatment and copper busbar technology, which is applied in the field of hard copper busbar annealing treatment, conductive parts, and hardened copper busbar processed products. Scrap rate and the effect of improving elongation after break

Inactive Publication Date: 2015-12-02
PINGGAO GRP +1
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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 an annealing treatment method for hard copper busbars, which can solve the problems that the existing hard copper busbars are easy to crack and produce waste products and have poor cold forming performance when cold working is used to prepare conductive parts.

Method used

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  • Hard copper busbar annealing method, processed hard copper busbar product and conductive part
  • Hard copper busbar annealing method, processed hard copper busbar product and conductive part
  • Hard copper busbar annealing method, processed hard copper busbar product and conductive part

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Embodiment 1

[0037] The hard copper busbar annealing treatment method of this embodiment includes placing the hard copper busbar after blanking in an ordinary box-type resistance furnace, annealing at an annealing temperature of 340 ° C for 240 minutes, and then cooling naturally in the air to room temperature.

[0038] The hard copper busbar processed product of this embodiment is that the hard copper busbar after blanking is placed in an ordinary box-type resistance furnace, annealed at an annealing temperature of 340 ° C for 240 minutes, and then naturally cooled in the air to Serve at room temperature.

[0039] The conductive part of the present embodiment is made by cold stamping of the hard copper bus bar processed product obtained above, and the formed conductive part is figure 1 High voltage switch contacts shown.

Embodiment 2

[0041] The hard copper bus bar annealing treatment method of the present embodiment comprises placing the hard copper bus bar after blanking in a well-type resistance furnace, annealing at an annealing temperature of 350° C. for 180 min, and then cooling naturally in air to room temperature.

[0042] The processed hard copper busbar in this embodiment is to place the blanked hard copper busbar in a well-type resistance furnace, heat it at an annealing temperature of 350°C for 180min for annealing treatment, and then cool it naturally in the air to room temperature , that is.

[0043] The conductive part of the present embodiment is made by cold stamping of the hard copper bus bar processed product obtained above, and the formed conductive part is figure 2 terminal block shown.

Embodiment 3

[0045] The method for annealing the hard copper busbar in this embodiment includes placing the blanked hard copper busbar in a vacuum annealing furnace, annealing at an annealing temperature of 350° C. for 180 minutes, and then naturally cooling to room temperature in clear water .

[0046] The processed hard copper busbar of this embodiment is to place the blanked hard copper busbar in a vacuum annealing furnace, heat it at an annealing temperature of 350° C. for 180 minutes for annealing treatment, and then cool it naturally in clear water to room temperature. Instantly.

[0047]The conductive part of the present embodiment is made by cold stamping of the hard copper bus bar processed product obtained above, and the formed conductive part is image 3 The shunt row shown.

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Abstract

The invention discloses a hard copper busbar annealing method, a processed hard copper busbar product and a conductive part. The hard copper busbar annealing method comprises the following steps: performing heat preservation of a hard copper busbar for 120-240 min at the annealing temperature of 340-360 DEG C for annealing treatment, and then cooling the hard copper busbar to room temperature. Compared with the hard copper busbar which is subjected to annealing treatment, the processed hard copper busbar product prepared according to the hard copper busbar annealing method is improved in mechanical property, which embodies in that on the premise that the tensile strength and the hardness are guaranteed to meet the standard requirements (the tensile strength is higher than or equal to 206 MPa, and the hardness is higher than or equal to 65 HB), the percentage elongation after fracture of the hard copper busbar is increased remarkably, the cold-forming processing property of the hard copper busbar is improved obviously, the rejection rate caused by fracture when the hard copper busbar is directly cold-formed is greatly reduced, the production efficiency is improved, the waste of resources is avoided, and the processing cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of hard copper busbars, and in particular relates to an annealing treatment method for hard copper busbars, and also relates to a hard copper busbar processed product and conductive parts prepared by using the hard copper busbar processed product. Background technique [0002] Copper bus bar, also known as copper bar, copper bus bar, copper bus bar, is a long conductor made of copper material with a rectangular or chamfered rectangular cross-section; it is a high-current conductive product that transports current and connects electrical appliances in an electric furnace. The role of the device. Copper busbars have the advantages of low resistivity and large bendability. They are suitable for electrical engineering such as high-voltage switch contacts, contact fingers, wiring boards, busbars, and grounding. They are also widely used in super-high-current electrolysis such as metal smelting, electrochemical pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08
Inventor 王安平陈东风刘建权程风华孔玉辉
Owner PINGGAO GRP
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