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
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[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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