220-level high-temperature-resistance alcohol-melting self-adhesion enameled wire and producing method thereof

A production method and technology of self-adhesive varnish, which is applied in the field of enameled wire, can solve the problems that the performance of hot-melt self-adhesive enameled wire cannot meet the requirements, and the temperature requirements for high-temperature tests are getting higher and higher, and achieve high wear resistance, lubricity, and temperature resistance. The effect of high grade and high safety factor

Inactive Publication Date: 2014-01-15
SHANGHAI MINHUA SPECIAL TYPE ENAMELED PROD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Today, with the continuous development and innovation of the electronics industry, as an indispensable hot-melt self-adhesive enameled wire in products such as computers, military electrical equipment, motors, power tools, and inductors, it has requirem

Method used

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Examples

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Example Embodiment

[0017] Examples:

[0018] The 220-grade high-temperature resistant hot-melt self-adhesive enameled wire of the present invention is composed of a copper conductor with a diameter of 0.20mm and two layers of insulating paint coated on the surface. The bottom layer is a 220-grade polyimide varnish resin paint, and the surface layer is high temperature Hot-melt self-adhesive paint with a test temperature of ≥180°C, wherein the polyimide paint resin paint improves the insulation level of the enameled wire and makes it have a high safety factor. The hot-melt self-adhesive paint makes the enameled wire self-adhesive layer resistant to high temperature.

[0019] The production method of 220 class high temperature resistant hot melt self-adhesive enameled wire includes the following steps:

[0020] (1) First, select a copper wire with a diameter of 0.10~0.50mm and anneal it in an annealing furnace at a temperature of 380~480℃.

[0021] (2) The bottom layer of the above-mentioned copper wire ...

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Abstract

The invention discloses a 220-level high-temperature-resistance alcohol-melting self-adhesion enameled wire which is formed by a copper conductor and two layers of insulation paint coating the surface of the copper conductor. The bottom layer is coated by 220-level polymide paint resin paint, the surface layer is coated by alcohol-melting self-adhesion paint, and the high-temperature testing temperature of the alcohol-melting self-adhesion paint is larger than or equal to 180 DEG C. The invention further relates to a producing method of the 220-level high-temperature-resistance alcohol-melting self-adhesion enameled wire. The producing method comprises the following steps of firstly choosing a copper wire with the diameter of 0.10-0.50mm, annealing the copper wire through an annealing furnace, evenly coating the bottom layer of the copper wire through 220-level polymide paint, setting the temperature of a drying furnace as 420-500 DEG C, evenly coating the face layer above the bottom layer coating of the copper wire with alcohol-melting self-adhesion paint with the high-temperature testing temperature larger than or equal to 180 DEG C, and setting the temperature of the drying furnace as 380-480 DEG C. The enameled wire has higher wear resistance and lubrication, is high in temperature resistance of an insulating layer and can meet the high-temperature testing temperature of a self-adhesion layer.

Description

technical field [0001] The invention relates to the technical field of enameled wires, in particular to a 220-grade high-temperature-resistant hot-melt self-adhesive enameled wire and a production method thereof. Background technique [0002] Today, with the continuous development and innovation of the electronics industry, as an indispensable hot-melt self-adhesive enameled wire in products such as computers, military electrical equipment, motors, electric tools, and inductors, it has requirements for the heat resistance level of the insulating layer and the high temperature test temperature of the self-adhesive layer. Higher and higher, the performance of hot-melt self-adhesive enameled wire commonly used in the market cannot meet the requirements. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the present invention provides a 220-grade high-temperature-resistant hot-melt self-adhesive enameled wire. The high temper...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B7/29H01B13/00H01B13/16
Inventor 庄丽敏
Owner SHANGHAI MINHUA SPECIAL TYPE ENAMELED PROD
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