Butt welding and lead lap welding processes of enameled flat copper wires of transformer

Abstract

The invention discloses butt welding and lead lap welding processes of enameled flat copper wires of a transformer. During welding, the process comprises the following steps of: (1) eliminating paint films of parts to be welded of two flat copper wires; (2) placing the parts to be welded of the two flat copper wires on a clamping mechanism for butt welding, and turning on a butt welding machine to heat the flat copper wires till the flat copper wires become red; (3) applying welding rods along the gap between the parts to be welded of the two flat copper wires so that the welding rods are completely molten in the gap, and then turning off the butt welding machine; and (4) removing the butt welding machine, and cleaning welding lines by using a grater after the flat copper wires are cooled to normal temperature. Compared with the traditional process that a gas welding manner is adopted for the butt joint and lead lap joint processes of the flat copper wires, the processes disclosed by the invention have the advantages of being short in operation time and high in efficiency, effectively increasing the production efficiency of the transformer and ensuring the welding quality of transformer conducting wires.

Description

technical field [0001] The invention relates to the technical field of transformer production, in particular to a process of butt welding and lap welding of enamelled flat copper wires. Background technique [0002] The butt joint and lead wire lap joint of traditional transformer enamelled flat copper wire are all adopted wind welding method, and the welding auxiliary material is silver copper welding rod or phosphor copper welding rod. For the wire gauge size of acetal enamelled flat copper wire, the use of air welding has the following disadvantages: 1) The wire gauge is relatively large. If a good welding quality is achieved, the butt joint needs to be filed into a bevel, which is time-consuming and laborious; 2) ) The heating of the wire is slow, and after welding, the welding part still needs to be treated and insulated, which takes about 30 minutes in total; 3) Dangerous gases such as oxygen and acetylene are placed in the production area, which has a certain impact o...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to solve the problem of cumbersome operations when the traditional transformer enamelled flat copper wire is connected and the lead wire is lapped, and to provide a short operation time and high efficiency for the butt welding and lead wire lap of the transformer enameled flat copper wire welding process