Device for manufacturing enameled copper flat wire for wind driven generator by die method

Abstract

The invention discloses a device for manufacturing an enameled copper flat wire for a wind driven generator by a die method. The radius of a hollow prismoid shaped circular bead with a fixed aperture in the middle of a die frame is 0.7 to 0.9 millimeters; a pressed copper flat wire is annealed after being cleaned and anti-oxidized, and continuously painted with the primer of polyester-imide painting and the topcoat of 200-grade polyester-imide painting through a die; and the obtained substance is baked and cooled to room temperature so as to obtain a finished product. The device has the advantages that: the die is selected to paint and manufacture a high viscosity compound layer enameled wire; the surface finishment of the enameled wire is ultrahigh, the outer diameters are uniform, and the enameled wire has perfect high temperature resistance and chemical resistance; the manufactured enameled copper flat wire has the advantages of higher tensile strength, flexibility, attachment and softening and puncturing resistance, and is applicable to the wind driven generator having the use requirements such as high surface quality finishment, no painting knot and large length on the enameled wire.

Description

[0001] This application is a divisional application for the method and device for manufacturing enamelled copper flat wire for wind power generators by mold method. The original application date is August 20, 2009, and the application number is 200910070168.9. Method and device for flat enamelled copper wire for generators. technical field [0002] The invention belongs to a production method and special equipment for an electromagnetic insulated wire, in particular to a method and a device for manufacturing an enamelled copper flat wire for a wind power generator by a mold method. Background technique [0003] Enameled wire is a winding wire mainly used in motors, electrical appliances, instruments, transformers and other workplaces. Wind turbine coils have particularly strict requirements for enameled wires. The special requirements are: 1) Large length of enameled wires, production meters per shaft, heavy weight, about 180kg per shaft; 2) Sectional cut into 2 meters long,...

AI Technical Summary

Problems solved by technology

As time goes by, the felt is gradually infiltrated by the paint liquid, which weakens the elasticity of the felt, and the amount of paint liquid coated on the wire will also increase. Since the baking temperature and painting speed are basically constant, the paint film will appear Insufficient curing will adversely affect the performance of the enameled wire, and may also cause the outer diameter of the enameled wire to exceed the standard requirements

[0006] Felt paint is not suitable for high-viscosity paint, and it is not suitable for high-speed production. Due to the low flowability of high-viscosity paint liquid, the leveling process of paint liquid under the action of surface tension is slow and insufficient, resulting in The cured paint film is unevenly distributed around the wire and the performance is unreliable

The existence of the above-mentioned paint film leveling process also limits the high-speed production of enameled wire

In addition, if the speed is too fast, the frictional heat generated between the wire and the felt will also increase, causing the surface of the felt to be scorched and hardened, and the paint liquid will become less viscous due to heating, which will affect the painting quality

[0007] In summary, the felt coating method cannot meet the requirements of stable surface quality and large length of enamelled copper flat wire for wind turbines due to the above-mentioned defects.

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