A production process of flat enamelled copper wire with large aspect ratio

Abstract

The invention belongs to the conductive wire manufacturing field and more particularly, to a technology for manufacturing flat enamel-cover copper wire with a large width-to-thickness ratio. The invention aims to solve the technical problems that the flat enamel-cover copper with a large width-to-thickness ratio manufactured by the existing technology has a low uniformity and poor consistency, which compromises the overall conductivity and cannot meet the manufacturing requirement for the flat enamel-cover copper wire with a large width-to-thickness ratio. The manufacturing technology comprises the following steps: A) releasing and correcting straight the wire; B) squeezing to make a round wire; C) squeezing to make a flat wire I; D) squeezing to make a flat wire II; E) squeezing to make a flat wire III; F) cooling; G) performing ultrasonic cleaning; H) annealing; I) cleaning and baking; J) painting and baking; and K) cooling, attracting and collecting the wires. With the technology proposed by the invention, the manufacturing for a flat enamel-cover copper wire with a large width-to-thickness ratio can be realized easily so that the manufactured flat enamel-cover copper wire has better conductivity and consistency.

Description

technical field

[0001] The invention belongs to the field of wire production, and in particular relates to a production process of a flat enameled copper wire with a large aspect ratio. Background technique

[0002] Enameled wire is a main variety of winding wire, which is composed of conductor and insulating layer. The bare wire is annealed and softened, and then painted and baked many times. However, it is not easy to produce products that meet both standard requirements and customer requirements, because it is affected by factors such as raw material quality, process parameters, production equipment, and the environment. Therefore, the quality characteristics of various enameled wires are different, but they are all It has four major properties: mechanical properties, chemical properties, electrical properties and thermal properties.

[0003] At present, the cross-sectional shape of enameled wire is mostly circular, but circular enameled wire has the disadvantage of low ...