Cutting method for copper clad aluminum busbar

Abstract

The invention relates to a cutting method for a copper clad aluminum busbar, which gives comprehensive consideration to different strength characteristics of the two metals of copper and aluminum, a press-type angle of an aluminum clad aluminum busbar, press-type pressure, press-type speed, the thickness of copper outer cladding layer, the thickness of inner aluminum core and the like, achieves the fact that the copper outer cladding layer wraps the inner aluminum core full and tight at the end face press-type cutting position through a special copper clad aluminum busbar cutting device after the copper clad aluminum busbar is cut off, and meets the requirements that the copper outer cladding layer has no breakage, the end face has no exposed aluminum core and the like. Therefore, the cutting method for the copper clad aluminum busbar ensures that when surface treatment of the copper clad aluminum busbar is conducted, the problems that an aluminum layer cannot be treated with a tinning process and the aluminum layer is prone to corrosion are resolved, corrosion resistance of the copper clad aluminum busbar is improved, and electric conduction of the electric conduction is ensured to be safe and reliable. In addition, by means of the special copper clad aluminum busbar cutting device, the copper clad aluminum busbar end face is led to form a press-type sharp angle and have guiding performance so that butt-joint installation of busbar products is facilitated.

Description

technical field [0001] The invention relates to a cutting method of a composite bus bar, in particular to a cutting method of a copper-clad aluminum bar. Background technique [0002] In the prior art, the cutting of composite busbars, especially copper-clad aluminum busbars, is usually punched and sheared by traditional cutting technology, and then subsequent processing is performed. This process has the following disadvantages: 1. The inner aluminum layer of the end face is exposed, and the busbar When the aluminum layer is exposed to acidic cleaning solution for surface treatment, it is easy to corrode, which seriously affects its appearance and oxidation resistance; at the same time, it cannot solve the problem of adhesion between the aluminum layer and the tin-plated layer, and cannot ensure the long-term reliable operation of the product; 2. The amount of cutting is large, resulting in waste of raw materials for the busbar; 3. The end face is a right-angle shape, which...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the cutting of composite busbars, especially copper-clad aluminum busbars, is usually punched and sheared by traditional cutting technology, and then subsequent processing is performed. This process has the following disadvantages: 1. The inner aluminum layer of the end face is exposed, and the busbar When the aluminum layer is exposed to acidic cleaning solution for surface treatment, it is easy to corrode, which seriously affects its appearance and oxidation resistance; at the same time, it cannot solve the problem of adhesion between the aluminum layer and the tin-plated layer, and cannot ensure the long-term reliable operation of the product; 2. The amount of cutting is large, resulting in waste of raw materials for the busbar; 3. The end face is a right-angle shape, which does not have guiding performance, which affects the accuracy of product docking installation during system installation

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