Painting method of square lead

A square, wire technology, applied in the direction of insulating conductors/cables, etc., can solve the problems of unqualified voltage withstand performance, paint peeling, easy cracking of narrow-edge paint films, etc., and achieve the effect of not easy cracking and uniform paint film.

Inactive Publication Date: 2010-12-01
SUZHOU XINDI ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The color is uneven, and the color of the narrow side is darker than that of the wide side;
[0006]2. The size of the paint film on the narrow side is difficult to control;
[0007] 3. During the bending test, the paint film on the narrow side is easy to crack and peel off;
[0008] 4. The withstand voltage performance is unqualified

Method used

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  • Painting method of square lead
  • Painting method of square lead
  • Painting method of square lead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] As shown in Figure 2: a method of painting a square wire, including the following steps:

[0023] 1) Bind the felt 3 and the square wire 1 together, and carry out the paint transfer and scraping of the varnish at the same time;

[0024] 2) Put the square wire 1 obtained in step 1) directly into the felt clip 2, and at the same time carry out the paint transfer and scraping of the varnish again;

[0025] 3) Baking the square wire 1 obtained in step 2).

[0026] The main factors affecting the amount of paint applied to the felt are: the degree of clamping of the felt, the temperature of the varnish, and the viscosity of the varnish. Due to the surface tension of the paint liquid, the adhesion of the paint liquid changes from uneven to basically uniform. To solve this problem, we must start from two aspects:

[0027] 1. Control the amount of paint on the narrow side so that it is basically the same as the amount of paint on the wide side;

[0028] 2. Increase the visco...

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Abstract

The invention relates to a painting method of a square lead, which comprises the following steps: (1) binding a felt and the square lead together, and simultaneously, conveying and scraping varnish; (2) enabling the square lead obtained in the step (1) to directly enter a felt clamp, and simultaneously, conveying and scraping the varnish again; and (3) baking the square lead obtained in the step (2). In the invention, the film painting method of the square lead manufactured in a secondary felt mode has good voltage resistance and ensures that the films painted at the wide edge and the narrow edge of the square lead are uniform and can not crack easily, and the paint can not fall off easily.

Description

technical field [0001] The invention relates to a method for painting enameled wires, in particular to a method for painting square wires. Background technique [0002] The felt method is the most widely used painting method in the production of enameled wire. In this method, the felt is flatly clamped on both sides of the conductor, and the felt has the functions of storing paint and controlling the amount of paint due to its elasticity and capillary action. [0003] In China, the surface of flat wires with rectangular cross-sections is generally painted with one-time multi-coat felt. When multiple-coat felt is used, the amount of paint on the narrow side is always more than that on the wide side, and it is difficult to control, resulting in Insufficient baking of the narrow side paint film results in unqualified electrical and mechanical properties. The closer the cross section is to a square, the more serious this phenomenon will be. When the size of the wide side of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/16
Inventor 顾坤楠
Owner SUZHOU XINDI ELECTRICAL
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