METHOD OF MANUFACTURING COPPER CLAD ALUMINUM BUSBAR

摘要

Disclosed herein is a method of manufacturing a copper clad aluminum busbar, comprising: (a) processing an aluminum bar into a rod pre-treating the aluminum bar; (b) inserting the aluminum bar into a copper tube to prepare a composite bar having a predetermined structure, and drawing the composite bar such that the aluminum bar and the copper tube of the composite bar are brought into close contact with each other at an interface thereof; (c) pre-treating the composite bar in order to prevent a lubricant or machining oil from infiltrating between the aluminum layer and the copper layer of the composite bar; (d) processing a leading end of the composite bar at a predetermined angle, making the copper layer longer than the aluminum layer by a predetermined length, and then ejecting the copper layer using the ejecting unit; (e) drawing the ejected composite bar using the heat drawing unit such that the aluminum layer and the copper layer of the composite bar are brought into tight contact with each other at the interface thereof; and (f) processing the heated and drawn composite bar into a busbar form by rolling the composite bar and then drawing the rolled composite bar using the second drawing unit configured to produce a busbar having a desired shape.