Frequency changing electromagnetic wire and manufacturing method thereof

A production method and technology of electromagnetic wire, applied in the direction of circuits, insulated cables, electrical components, etc., can solve the problems of insufficient anti-pulse ability of variable frequency electromagnetic wire, low output of production method, poor quality of paint film, etc., and achieve improved anti-pulse electric aging and the ability of thermal aging of the coil, improving safety and reliability, and reducing production costs

Inactive Publication Date: 2008-06-11
上海裕生特种线材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an improved frequency-variable electromagnetic wire and its production method, which can overcome the disadvantages of insufficient anti-pulse ability of variable-frequency electromagnetic wire in the prior art, low output, high cost, and poor paint film quality of the production method.

Method used

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  • Frequency changing electromagnetic wire and manufacturing method thereof

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Effect test

Embodiment 1

[0015] The 2.6mm soft copper material is drawn to reach 1mm line, so that the surface of the copper material is smooth and seamless; the surface of the copper wire is cleaned with water with a flow rate of 2 cubic per minute, and then the copper wire is placed in a tubular annealing furnace for 15 Seconds of annealing, softening the copper surface and then using 250-degree steam protection to restore the copper wire lattice; use molds and nozzles to spray three layers of paint on the surface of the copper wire, the thickness of the primer is at least 0.06 mm, and the middle The thickness of the paint is at least 0.07 mm, and the thickness of the top coat is at least 0.02 mm; then bake the painted surface on the enamelling machine to make a smooth and complete paint film on the surface of the copper wire; then cool the copper wire to room temperature and collect it to It becomes a finished product on the reel.

Embodiment 2

[0017] The continuous casting and rolling high-purity low-oxygen copper is subjected to wire drawing treatment to make the surface of the copper material smooth and seamless; the surface of the copper wire is cleaned with 3 cubic meters of water per minute, and then the copper wire is tempered in an annealing furnace to make the copper surface After softening treatment, use 300-degree steam protection to restore the copper wire lattice; use molds and nozzles to paint the surface of the copper wire in three layers. Both the primer and the top coat are made of frequency conversion paint 981-M imported from the United States. -31TAM; bake the painted surface on the enamelling machine for 3 minutes at 680 degrees to make a smooth and complete paint film on the surface of the copper wire; finally cool the copper wire to close to room temperature, and then collect it on the reel to become the finished product.

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Abstract

The invention relates to a frequency conversion magnet coil, characterized in that the surface of the copper wire is coated with first coat, middle coat and top coat sequentially, and lubricating agent is coated on topcoat. The major insulation in the said frequency conversion magnet coil spreads the metal oxide powder in the polymer molecule by using nanometer technology, resin will be cross linking solidified and inserted in the polymer molecule when the dissolvent is evaporated. It acts as organic polymer reinforcer and screen, keep the major insulation of the frequency conversion magnet coil from local ionizing and improve the capability of resisting pulse of the frequency conversion magnet coil.

Description

Technical field: [0001] The invention relates to the technical field of insulated wires and production methods thereof, in particular to a variable frequency electromagnetic wire and production methods thereof. Background technique: [0002] At present, frequency conversion motors have broad application prospects in metallurgy, mining, light industry, electric power, urban transportation, military industry and other fields, and gradually replace mechanical variable speed and DC speed regulating motors. They have been widely valued in China and have developed rapidly in recent years. Frequency conversion motors achieve variable speed by changing the frequency. Under the impact of high-frequency voltage, the insulation of ordinary motor magnet wires is prone to partial discharge and corona phenomenon of space charge accumulation, which accelerates the aging of insulation and shortens the service life of the motor. [0003] The frequency conversion magnet wire is an important i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/02H01B7/00H01B13/00H02K3/30
Inventor 段宗友李鸣先高根夫张家化许民
Owner 上海裕生特种线材有限公司
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