A production process for single-layer enameled multi-color parallel wires

By improving the wire drawing process and the composition of polyurethane paint, the problem of insufficient resistance difference and scratch resistance of single-layer enameled multi-color parallel lines is solved, and resistance difference control and scratch resistance are achieved.

CN114974729BActive Publication Date: 2025-02-07江西中易微连新材料科技有限公司
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Patent Information

Application Number
CN202210427490.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-21
Publication Date
2025-02-07
Estimated Expiration
2042-04-21

AI Technical Summary

Technical Problem

The existing single-layer enameled multi-color parallel line process is difficult to control the resistance difference within 3%, and due to the high friction coefficient and insufficient bonding force of the adhesive paint, the scratch resistance is poor.

Method used

By improving the wire drawing process, steam-heated copper wire is used to perform micro-stretching, reducing the resistance difference of single-layer enameled wire; at the same time, the composition of polyurethane paint is improved and modified vapor-phase silica is added to enhance the surface paint and the external adhesive paint. Binding power.

Benefits of technology

The resistance difference of single-layer enameled wire is controlled within 2%, and the scratch resistance of single-layer enameled multi-color parallel wire is significantly improved.

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Abstract

The present invention develops a production process for single-layer enameled multi-color parallel wires, which reduces the resistance difference of the single-layer enameled wires by improving the wire drawing process; and enhances the bonding strength between the surface paint of the single-layer enameled wires and the external bonding paint by improving the polyurethane paint used for the single-layer enameled wires, and improves the scratch resistance of the single-layer enameled multi-color parallel wires.
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Citation Information

Patent Citations

  • Preparation method of high-stretching micro-thin enamelled round copper wire

    CN107293376A

  • B-grade acetal wire enamel capable of being coated at high speed and preparation process thereof

    CN112210268A