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An enamelled wire and a production process thereof

A production process and technology of enameled wire, applied in the field of enameled wire, can solve the problems of affecting service life, poor corrosion resistance, inappropriate composition of enameled wire insulating varnish, etc., and achieve the effects of reducing production and use costs, ensuring curing effect, and reducing corona phenomenon

Inactive Publication Date: 2018-12-21
瑞安市中德电工器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing enameled wire processing, the insulating varnish is prone to partial discharge and corona phenomenon of space charge accumulation, which accelerates aging and affects the service life, and the heat treatment of the enameled wire and the composition of the insulating varnish are not suitable, and it is easy to fall off and has poor corrosion resistance. , affecting the stability of use, greatly increasing the cost of production and use

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0046] As preferably, the preparation method of described insulating varnish comprises the steps:

[0047] P1. Stir the modified polyester resin at a speed of 1000 rpm to 1200 rpm, add butyl acetate solvent at 50 degrees Celsius, and stir for 30 minutes to obtain a clear and transparent solution.

[0048] P2. Stir the transparent solution in P1 with a highly emulsifying machine at 5000 rpm to 7000 rpm, slowly add deionized water, and stir for 30 minutes to obtain a uniform and stable white solution, which is a water-based polyester resin emulsion. .

[0049] P3. Dilute the hexamethylene cyanate curing agent with deionized water, and then add phenol ether co-solvent to obtain the additive.

[0050] P4. Mix the water-based polyester resin emulsion and additives according to the weight ratio, and stir for 30 minutes at a speed of 1000 rpm to 110 rpm to obtain an insulating varnish.

[0051] Preferably, the lubricant is an oil-soluble hydroxyl-terminated polyether.

[0052] The...

Embodiment 1

[0054] An enameled wire and a production process thereof, comprising the steps of:

[0055] S1. Prepare the blank: select a 2.6 mm soft copper rod, and use it for later use after passing the inspection.

[0056] S2. Medium wire drawing: the billet is stretched to the diameter of the wire rod at a speed of 600 meters to 700 meters per minute, and the diameter error is between +0.03 and -0.02 mm.

[0057] S3. Cleaning: put the prepared yarn into the cleaning water tank, wash it with cleaning water, and remove the surface oil and impurities.

[0058] S4, small and medium-sized wire drawing: the cleaned specification wire is electroplated with nickel at a speed of 700 meters to 750 meters per minute, and the wire rod with the final diameter is obtained.

[0059] S5. Annealing: the wire is annealed from the upper layer of the annealing furnace through the lower layer at a speed of 20 meters to 22 meters per minute, and the temperature is 550 degrees Celsius to 580 degrees Celsius....

Embodiment 2

[0077] An enameled wire and a production process thereof, comprising the steps of:

[0078] S1. Prepare the blank: select a 2.6 mm soft copper rod, and use it for later use after passing the inspection.

[0079] S2. Medium wire drawing: the billet is stretched to the diameter of the wire rod at a speed of 600 meters to 700 meters per minute, and the diameter error is between +0.03 and -0.02 mm.

[0080] S3. Cleaning: put the prepared yarn into the cleaning water tank, wash it with cleaning water, and remove the surface oil and impurities.

[0081] S4, small and medium-sized wire drawing: the cleaned specification wire is electroplated with nickel at a speed of 700 meters to 750 meters per minute, and the wire rod with the final diameter is obtained.

[0082] S5. Annealing: the wire is annealed from the upper layer of the annealing furnace through the lower layer at a speed of 20 meters to 22 meters per minute, and the temperature is 550 degrees Celsius to 580 degrees Celsius....

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PUM

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Abstract

The invention discloses an enameled wire and a production process thereof, includes the following steps: S1, preparing a blank, S2, medium drawing, S3, Cleaning, S4, medium and small wire drawing, S5,annealing, S6, Cooling, S7, painted, S8, Lubrication, S9, take-up, The invention provides an enameled wire and a production process thereof. The enameled wire and the production process thereof can prepare an insulating paint by combining a sleeping polyester resin emulsion with an additive, which can ensure environmental protection characteristics and at the same time can ensure curing effect, avoid falling off, improve corrosion resistance, reduce corona phenomenon, ensure service life and reduce production and use cost by improving the treatment process.

Description

technical field [0001] The invention relates to the technical field of enameled wires, in particular to an enameled wire and a production process thereof. Background technique [0002] At present, the traditional enameled wire production is to apply solvent insulating varnish on the surface of the conductor using felt or mold, and then bake at high temperature in the oven to volatilize the solvent of the insulating varnish and cross-link and solidify, and then coat a thin layer of liquid or Solid lubricating oil. [0003] However, in the existing enameled wire processing, the insulating varnish is prone to partial discharge and corona phenomenon of space charge accumulation, which accelerates aging and affects the service life, and the heat treatment of the enameled wire and the composition of the insulating varnish are not suitable, and it is easy to fall off and has poor corrosion resistance. , affecting the stability of use, greatly increasing the cost of production and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/06C09D175/04C09D5/25
CPCH01B13/00C09D5/00C09D175/04H01B13/065
Inventor 郑小锋
Owner 瑞安市中德电工器材有限公司
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