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Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire

A three-layer insulation and manufacturing method technology, applied in the direction of cable/conductor manufacturing, conductor/cable insulation, electrical components, etc., can solve the problem that the heat resistance temperature cannot meet the safety, reliability, and stability performance, and achieve safety performance and use Improved life and good wear resistance

Inactive Publication Date: 2013-12-04
上海旌缘科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the three-layer insulated wire used on the transformer is composed of copper conductor, two layers of polyester insulation layer and outer polyamide insulation layer. (130°C), with the development trend of electronics, telecommunications, and power supply equipment, the heat-resistant temperature of Class E (120°C) and Class B (130°C) can no longer meet the requirements of safety, reliability and stability, and the market is in urgent need of Three-layer insulated wire with higher heat resistance and better wear resistance

Method used

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  • Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire
  • Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire
  • Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire

Examples

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Embodiment 1

[0017] A temperature-resistant and wear-resistant three-layer insulated wire, its structure is as follows figure 1 As shown, it includes an inner core 1 composed of a copper conductor, two layers of modified polyester insulating layers 2, and one layer of polyamide resin layer 3.

[0018] The manufacturing method of the temperature-resistant and wear-resistant three-layer insulated wire includes the following steps: combining copper conductors into the inner core 1 of the insulated wire, and then using a single-screw extruder to sequentially extrude two layers of modified polyester insulating layers 2 onto the copper conductor Finally, the polyamide resin layer 3 is extruded on the outside of the two modified polyester insulating layers 2 using a single-screw extruder.

[0019] Wherein, the modified polyester insulating layer is composed of polyester resin added with superfine talcum powder and surface modifier, the addition amount of superfine talcum powder is 1wt% of the pol...

Embodiment 2

[0034] A method for manufacturing a temperature-resistant and wear-resistant three-layer insulated wire, comprising the following steps: combining copper conductors into the inner core of the insulated wire, and then using a single-screw extruder to sequentially extrude two layers of modified polyester insulating layers on the copper On the outside of the conductor, finally use a single-screw extruder to extrude the polyamide resin layer on the outside of the two modified polyester insulating layers of the bun.

[0035] Wherein, the modified polyester insulating layer is composed of polyester resin added with superfine talcum powder or nano-soil and surface modifier, and the addition amount of super-fine talcum powder or nano-soil is 1wt% of polyester resin, and the surface modification The addition amount of agent is 1wt% of polyester resin. The surface modifier used was glycidyl methacrylate and the polyester was polyethylene terephthalate.

Embodiment 3

[0037] A method for manufacturing a temperature-resistant and wear-resistant three-layer insulated wire, comprising the following steps: combining copper conductors into the inner core of the insulated wire, and then using a single-screw extruder to sequentially extrude two layers of modified polyester insulating layers on the copper On the outside of the conductor, finally use a single-screw extruder to extrude the polyamide resin layer on the outside of the two modified polyester insulating layers.

[0038] Wherein, the modified polyester insulating layer is composed of polyester resin added with superfine talcum powder or nano-soil and surface modifier. The addition of superfine talcum powder or nano soil is 5wt% of polyester resin, the addition of surface modifier is 2wt% of polyester resin, and the surface modifier used is glycidyl methacrylate and methacrylic acid Terpolymer of glycidyl ester and ethylene-acrylic acid ester, polyester package is a blend of polybutylene t...

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Abstract

The invention relates to a method for manufacturing a temperature-resistance and wear-resisting three-layer insulated wire. The method comprises the steps that a copper conductor is combined to form an inner core of the insulated wire, a single-screw plastic extruding machine is utilized for enabling two modified polyester insulating layers to sequentially wrap the outer face of the copper conductor in an extruding mode, and finally the single-screw plastic extruding machine is utilized for enabling polyamide resin layers to wrap the outer faces of the two modified polyester insulating layers in an extruding mode. Compared with the prior art, the method has the advantages that temperature resistance, wear resistance and machinability of polyester resin are modified, the heat-resistance temperature of the obtained modified polyester insulation winding wire product can reach 140 DEG C, the wear-resisting performance is improved, the static friction coefficient is 0.126, the temperature-resistance and wear-resisting three-layer insulated wire can replace an existing B-level (the heat-resistance level is 130 DEG C) three-layer insulated wire to be applied to a transformer and a high-frequency winding coil, the heat-resistance performance and the wear-resisting performance of the insulated wire are excellent, the safety of the transformer is improved, and the service life of the transformer is prolonged.

Description

technical field [0001] The invention relates to a method for manufacturing an insulated wire, in particular to a method for manufacturing a temperature-resistant and wear-resistant three-layer insulated wire. Background technique [0002] At present, the three-layer insulated wire used on the transformer is composed of copper conductor, two layers of polyester insulation layer and outer polyamide insulation layer. (130°C), with the development trend of electronics, telecommunications, and power supply equipment, the heat-resistant temperature of E-grade (120°C) and B-grade (130°C) can no longer meet the requirements of safety, reliability and stability, and the market urgently needs Three-layer insulated wire with higher heat resistance and better wear resistance. [0003] Talc powder has excellent physical and chemical properties such as lubricity, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good hiding power, softness, good gloss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/14H01B13/24
Inventor 沈刚范雷方
Owner 上海旌缘科技股份有限公司
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