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Ultra-fine and ultra-thick paint film enameled wire and manufacturing method thereof

A production method and ultra-fine technology, applied in the direction of cable/conductor manufacturing, conductor, conductor/cable insulation, etc., can solve the problem of frequent disconnection in the production process, difficulty in controlling the surface quality of the finished wire and the concentricity of the paint film, and production efficiency. lower problem

Inactive Publication Date: 2021-05-07
广东松田科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional felt method of painting uses a paint roller to supply paint, and the amount of paint on each coat is basically constant. As the thickness of the paint film increases, the surface quality of the finished wire and the concentricity of the paint film will be difficult to control, so only a certain thickness can be produced. enameled wire
However, in the mold painting production, the production process is frequently broken, and the production efficiency is extremely low.

Method used

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  • Ultra-fine and ultra-thick paint film enameled wire and manufacturing method thereof
  • Ultra-fine and ultra-thick paint film enameled wire and manufacturing method thereof
  • Ultra-fine and ultra-thick paint film enameled wire and manufacturing method thereof

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Embodiment Construction

[0045] An ultra-fine and ultra-thick enameled wire of the present embodiment includes a copper rod 60 and an insulating varnish layer;

[0046] The copper rod 60 is an annealed low-oxygen copper rod 60 with an oxygen content of 180-230 ppm, and the diameter of the copper rod 60 is φ0.03 mm;

[0047] The insulating varnish layer is evenly wrapped around the copper rod 60 ; the thickness of the insulating varnish layer is 0.015-0.025 mm, preferably 0.015 mm in this embodiment.

[0048] More specifically, the insulating paint layer is a polyurethane paint layer. The polyurethane paint is grade 180 polyurethane paint, and its viscosity during painting is 20-25 mp.s, preferably 20 mp.s in this embodiment.

[0049] see Figure 1 to Figure 5 , the present embodiment also provides a method for manufacturing an ultra-fine ultra-thick enameled wire, comprising the following steps:

[0050] Step 1. Wire drawing: select an annealed low-oxygen copper rod 60 of φ2.6mm with an oxygen conte...

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Abstract

The invention relates to an ultra-fine and ultra-thick paint film enameled wire which comprises a copper rod and an insulating paint layer. The copper rod is an annealed low-oxygen copper rod with an oxygen content ranging from 180 ppm to 230 ppm, and the diameter phi of the copper rod is 0.03 mm. The insulating paint layer is uniformly wrapped outside the copper rod; and the thickness of the insulating paint layer is 0.015 to 0.025 mm. According to the invention, the ''ultra-thick paint film'' enameled wire with the specification below phi 0.04 mm and an NEMA: 1000 standard can be produced so that the requirements of miniaturization and a high voltage resistance of inductance components can be met.

Description

technical field [0001] The invention relates to the technical field of enameled wire production, in particular to an ultra-fine and ultra-thick enameled wire with enameled film and a manufacturing method thereof. Background technique [0002] At present, the minimum specification of NEMA:1000 standard "ultra-thick paint film" enameled wire in the enameled wire industry is φ0.04mm; and the specification of φ0.04mm ultra-thick enameled film enameled wire can no longer meet the increasing miniaturization needs of electronic components. [0003] It is extremely difficult to control the surface quality of the finished product surface quality of the ultra-thick enameled wire with specifications below φ0.04mm that meets the NEMA:1000 standard, and it is easy to break the wire. Some enterprises try to produce ultra-thick enameled wire with a specification below φ0.04mm through the traditional felt method or mold method; [0004] The traditional felt method of painting uses a paint ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B13/06
CPCH01B7/02H01B13/065
Inventor 陈明海刘涛
Owner 广东松田科技股份有限公司
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