Method for removing paint from enameled wire and paint remover

An enameled wire and paint remover technology, applied in the field of paint removal, can solve the problems of complicated operation and maintenance, expensive laser machines, etc., and achieve the effect of low cost and simple operation

Inactive Publication Date: 2012-07-11
SUZHOU CHANGFENG AVIATION ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The laser paint removal method can remove various paint layers very well, and has strong versatility, b

Method used

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Embodiment Construction

[0036] The present invention is described in detail below by specific embodiment:

[0037] The paint stripping method of the invention utilizes the alkaline paint stripper in molten state to crack the paint layer on the surface of the enameled wire to achieve the purpose of paint stripping.

[0038] The paint stripper used in the present invention is a mixture of potassium hydroxide and sodium hydroxide, and the specific formula and process parameters are as follows

[0039] NaOH (sodium hydroxide): 15-20% (mass ratio),

[0040] KOH (potassium hydroxide): balance (mass ratio)

[0041] Temperature: 270℃±30℃

[0042] Time: less than 1 minute at 300°C

[0043] During preparation: first weigh the calculated amount of sodium hydroxide with a balance or an electronic scale, and pour it into a nickel crucible; secondly, take the remaining potassium hydroxide and add part of the potassium hydroxide to the crucible (cannot be added at one time, The amount of addition is preferably ...

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Abstract

The invention belongs to a paint removing technology and relates to a method for removing paint from an enameled wire and a paint remover. The method comprises the following steps: weighing sodium hydroxide and potassium hydroxide by using a scale or an electronic scale, mixing, pouring the mixture into a nickel crucible and heating, so that the mixture is melted; soaking one end, needing paint removal, of the enameled wire into the paint remover, removing paint, and taking out the enameled wire after the paint-removing reaction stops; soaking one paint-removed end of the enameled wire into clear water, washing for not less than 15 seconds, neutralizing the residual alkaline liquid by using a glacial acetic acid solution and performing subsequent cleaning; and after cleaning, wiping, detecting and storing in the drying environment. The invention is simple in operation, low in cost, can remove paint from polyimide copper enameled wires, polyimide nickel enameled wires, polyester copper enameled wires and polyester nickel enameled wires in a wide temperature range, does not damage the metal materials of the enameled wires, and is very applicable to small-diameter enameled wires which cannot be depainted by a mechanical grinding method.

Description

technical field [0001] The invention belongs to the paint stripping technology, and relates to a paint stripping method and a paint stripper for enameled wires. Background technique [0002] At present, the industry mainly adopts three major methods of removing paint from polyimide, polyester copper, and nickel enameled wires: mechanical, laser, and chemical: [0003] 1. Mechanical method: [0004] For enameled wires of different wire diameters (mainly copper wires and nickel wires), workers use manual blade scraping and fine sandpaper grinding to remove the paint. This method has very strict requirements on the hand feel and proficiency of the workers, and there are two insurmountable disadvantages: the paint layer is not completely removed (causing virtual welding), and the metal wire is easily damaged (the smaller the wire diameter, the greater the impact of damage) Big). [0005] 2. Chemical method: [0006] Due to different formulas, the method has different depaint...

Claims

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Application Information

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IPC IPC(8): C09D9/00
Inventor 王琳琳
Owner SUZHOU CHANGFENG AVIATION ELECTRONICS
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