Method for preparing integral type multi-branch structure copper-bus busbar and busbar

A multi-branch, integral technology, applied in cable/conductor manufacturing, rod/rod/wire/strip conductor, electrical components, etc., can solve problems such as unsolved problems, achieve process simplification and optimization, improve raw material utilization, The effect of improving shape and dimensional accuracy

Active Publication Date: 2014-02-26
ZHUZHOU BOYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology disclosed in this patent still does not solve the problems existing in the preparation of the integrated multi-branch structure copper bus bar, so it is necessary to further study this

Method used

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  • Method for preparing integral type multi-branch structure copper-bus busbar and busbar
  • Method for preparing integral type multi-branch structure copper-bus busbar and busbar
  • Method for preparing integral type multi-branch structure copper-bus busbar and busbar

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preparation example Construction

[0023] Such as figure 1 As shown in -3, the present invention relates to a method for preparing an integral multi-branch structure copper bus bar, which divides the integral multi-branch structure copper bus bar into two parts, one part is a parent part, and a part is a sub-part, and the sub-part is a parent part Each branch of the row is respectively connected to the parent part, which is characterized in that: the sub-parts are pressed into the parent part by pressure, and then assembled and welded into one body by polymer diffusion welding.

[0024] Preferably, when the sub-piece is pressed into the parent part by pressure, a pressure groove equal to the width of the sub-part is formed on the parent part according to the distribution position of the sub-part, and at the same time, the connecting part of the sub-part and the parent part is also milled off Part of the sub-part makes the sub-part into a stepped shape; then the sub-part is pressed into the sub-part pressure gro...

Embodiment 1

[0032] The invention discloses a method for preparing copper busbars with an integral multi-branch structure, which adopts separate processing and molding of each sub-part and the parent part, and then combines and welds the sub-parts and the parent part to form a whole. First, the flat copper bar or copper plate is processed by a sawing machine or a metal engraving machine or a CNC milling machine or a CNC machining center according to the shape and size of the parent part and each sub-part to produce the parent part 1, the sub-parts 2, the sub-parts 3 and the sub-parts 4, For the blanks of sub-part 5 and sub-part 6, after deburring, put the master part and the sub-parts on the milling machine to mill grooves, mill steps, and drill holes (drilling machine can also be used), and deburr after milling and drilling, so that the sub-parts can be installed on the master part The position of the sub-parts is equal to the number of sub-parts to form a sub-part installation groove 7, a...

Embodiment 2

[0034] The process steps of Embodiment 2 are the same as Embodiment 1, except that the material of the intermediate soldering layer used is a low-melting point copper alloy material and a mutually eutectic metal material; when the sub-parts are pressed into the parent part The working pressure of the press is 45 kg / cm 2 , the polymer diffusion pressure welding is to use industrial rosin as a welding aid, the temperature is 0.7 times the melting point of the copper busbar, and the pressure is 12kg / cm 2 carried out under the conditions.

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Abstract

The invention relates to a method for preparing an integral type multi-branch structure copper-bus busbar and the busbar. The method comprises the following steps of: dividing the integral type multi-branch structure copper-bus busbar into a parent part and sub-parts, wherein the sub-parts are branches of the parent part, are connected to the parent part respectively, and are pressed into the parent part through pressure; assembling and welding the parent part and the sub-parts together through polymer diffusion welding, wherein pressure tanks, the width of each of which is equal to that of each of the sub-parts, are formed on the parent part according to the distribution positions of the sub-parts, and a part of each joint of each sub-part and the parent part is cut off by milling to ensure that the sub-parts are step-shaped; pressing the sub-parts into the sub-part pressure tanks of the parent part through a pressing machine, and padding a welding assistant layer between two contact surfaces of pressure welding parts of the sub-parts and the parent part; and performing polymer diffusion pressure welding on the composite part of the sub-parts and the parent part in polymer diffusion pressure welding equipment, keeping the pressure of a welding machine to ensure that welding joints of the sub-parts and the parent part are cooled to the natural temperature, and then releasing the pressure.

Description

technical field [0001] The invention relates to a method for processing and manufacturing metal material parts, in particular to a method for preparing an integral multi-branch structure copper bus bar and the bus bar. It is mainly used for processing and manufacturing the main circuit of the traction converter of electric locomotives (high-speed trains, bullet trains, and other traditional rail vehicles) and other power converters and main circuit busbars of power distribution cabinets. technical background [0002] In the current electrical transmission system, the copper bus bar is used as a copper bar for transmitting current. The copper bus bar has good electrical conductivity, thermal conductivity, corrosion resistance, high mechanical strength, no low temperature brittleness, easy welding, and easy pressure Processing, widely used in switchgear busbars and lead wires of generators and transformers. With the continuous development of industrial technology and the inno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/02H01B13/00
Inventor 周博贺彦君周忠达刘华勇
Owner ZHUZHOU BOYA TECH
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