Method for manufacturing high-yield strength cuprum flat wire and wire-drawing device

Abstract

A process for preparing copper strap wires with high-yield strength and a wire drawing device belong to the technical field of transformer, which are used to resolve the manufacturing problem of copper strap wires with high-yield strength. The technical scheme is that the copper strap wires are produced by drawing and strengthening flexible copper strap wires, the manufacturing process includes steps of confirming cross-section size of half-finished product of flexible copper strap wires, selecting flexible copper strap wires, preparing copper strap wires with high-yield strength and the like.The wire drawing device employs equal diameter drawing wheels, is provided with regulating wheels, and the regulating wheel shaft and the wire drawing shaft have an inclination of 3 degree to 8 degree. The invention creates the wire drawing technique according to cross-section reduction and yield strength relation, uses special-purpose wire drawing device in wire drawing process, thereby radically avoiding the camber produced by common wire drawing machine and resolving the problem of umbrella winding coil. Products produced by the technique have good coiling process, can increase mechanicalrigidity and short circuit resistance ability and prolong the service life of transformer.

Description

technical field [0001] The invention relates to a method for preparing a wire, in particular to a method for preparing a copper flat wire used in manufacturing transformer coils, and belongs to the technical field of transformers. Background technique [0002] As we all know, the winding coil is one of the most important components in the transformer, and the enameled wire is the main raw material for winding the coil, and its quality directly affects the service life and operation effect of the transformer. With the rapid development of the electric power industry, manufacturers of transformers and winding wires are devoting themselves to research on how to further improve the quality of transformer winding coils for their own development and market demand. Among them, the research and application of semi-hard copper wire is one of the important research results. Its application greatly improves the impact resistance of winding coils and prolongs the service life of transfo...

AI Technical Summary

Problems solved by technology

The rolling method is simple and practical, but this method is no longer applicable when the yield strength of the wire exceeds 200MPa, and this method has high requirements for tooling; the method of changing the composition of the copper wire billet can meet the requirements of high yield strength, but the manufacturing cost is low. It can be seen from the characteristic curve of copper by controlling the annealing temperature method, because the temperature has a great influence on the yield strength of copper, it is not easy to control as an industrial production

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