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A processing technology for copper enameled wire

A processing technology, enameled wire technology, used in the direction of reducing the size of conductors/cables, heat treatment equipment, insulating conductors/cables, etc., can solve the problem of high cost, achieve stable coating, simple preparation process, not easy shedding effect

Active Publication Date: 2021-01-19
红旗集团江西铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first two types are only used in occasions with special requirements due to high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A processing technology for copper enameled wire, comprising the steps of:

[0024] (1) Configure enameled wire paint;

[0025] (2) Wire-drawing annealing is carried out on the copper wire. The annealing is divided into three stages. The annealing temperatures of the three stages are: 650±5℃ for the first stage, 640±5℃ for the second stage, and 650±5℃ for the third stage. The cooling rate of each stage is ≤10 °C / min;

[0026] (3) Paint the annealed copper wire and bake it three times after painting. The baking temperature is 200±5℃, 280±5℃ and 330±5℃ respectively. After baking, the wire is taken up at a speed of 12m / min;

[0027] The wire enamel contains modified phenolic resin, N-methylpyrrolidone, polyetherimide resin, 3,4-cresol, pentaerythritol triacrylate, E-42 epoxy resin, stearic acid amide, cyclohexanone , dibutyltin dilaurate and N,N-dimethylacetamide, the components are calculated in parts by weight: 16 parts of modified phenolic resin, 400 parts of N-meth...

Embodiment 2

[0037] A processing technology for copper enameled wire, comprising the steps of:

[0038] (1) Configure enameled wire paint;

[0039] (2) Wire-drawing annealing is carried out on the copper wire. The annealing is divided into three stages. The annealing temperatures of the three stages are: 650±5℃ for the first stage, 640±5℃ for the second stage, and 650±5℃ for the third stage. The cooling rate of each stage is ≤10 °C / min;

[0040] (3) Paint the annealed copper wire and bake it three times after painting. The baking temperature is 200±5℃, 280±5℃ and 330±5℃ respectively. After baking, the wire is taken up at a speed of 12m / min;

[0041] The wire enamel contains modified phenolic resin, N-methylpyrrolidone, polyetherimide resin, 3,4-cresol, pentaerythritol triacrylate, E-42 epoxy resin, stearic acid amide, cyclohexanone , dibutyltin dilaurate and N,N-dimethylacetamide, the components are calculated in parts by weight: 17 parts of modified phenolic resin, 430 parts of N-meth...

Embodiment 3

[0051] A processing technology for copper enameled wire, comprising the steps of:

[0052] (1) Configure enameled wire paint;

[0053] (2) Wire-drawing annealing is carried out on the copper wire. The annealing is divided into three stages. The annealing temperatures of the three stages are: 650±5℃ for the first stage, 640±5℃ for the second stage, and 650±5℃ for the third stage. The cooling rate of each stage is ≤10 °C / min;

[0054] (3) Paint the annealed copper wire and bake it three times after painting. The baking temperature is 200±5℃, 280±5℃ and 330±5℃ respectively. After baking, the wire is taken up at a speed of 12m / min;

[0055] The wire enamel contains modified phenolic resin, N-methylpyrrolidone, polyetherimide resin, 3,4-cresol, pentaerythritol triacrylate, E-42 epoxy resin, stearic acid amide, cyclohexanone , dibutyltin dilaurate and N,N-dimethylacetamide, the components are calculated in parts by weight: 18 parts of modified phenolic resin, 470 parts of N-meth...

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PUM

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Abstract

The invention discloses a processing technology for a copper enameled wire. The processing technology comprises the following steps: (1) preparing enameled wire paint; (2) performing wire drawing annealing on the copper wire in three sections, wherein the annealing temperatures of the three sections are as follows: 650 + / -5 DEG C for the first section, 640 + / -5 DEG C for the second section and 650 + / -5 DEG C for the third section, and the annealing cooling speed of each section is less than or equal to 10 DEG C / min; (3) painting the annealed copper wire, performing baking for three times after paining, wherein the baking temperatures are respectively 200 + / -5 DEG C, 280 + / -5 DEG C and 330 + / -5 DEG C; taking up the copper wire after baking, wherein the take-up speed ranges from 10 m / min to 15 m / min. The enameled wire prepared from the self-made enameled wire paint is high in heat resistance, good in cohesiveness and coating property, stable in coating, not prone to falling off, simple in preparation process and easy to operate.

Description

technical field [0001] The invention relates to the technical field of processing enameled wires, in particular to a processing technology for copper enameled wires. Background technique [0002] Enameled wire is generally used to make electromagnetic windings or coils for various purposes. It is a wire with an insulating layer, so it is also called electromagnetic wire. It is composed of a conductor and an insulating layer, annealed and softened bare copper wires, painted several times, and finally baked. National standards and users have strict requirements on the quality and performance of various enameled wires, mainly including thermal properties, chemical properties, electrical properties, mechanical properties, etc. According to the insulating material, enameled wire can be divided into: polyimide enameled wire, polyesterimide enameled wire, modified polyester enameled wire, polyurethane enameled wire, polyester enameled wire, polyesterimide / polyamideimide enameled w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B13/06C09D4/06C09D4/02C09D5/25C09D7/62
CPCC09D4/06C09D5/18C09D7/62H01B3/308H01B13/0006H01B13/0016H01B13/065
Inventor 王星余
Owner 红旗集团江西铜业有限公司