Manufacturing method of H-level and 200-level electromagnetic wire

Abstract

The invention relates to a manufacturing method of an H-level and 200-level electromagnetic wire, and the manufacturing method provided by the invention is lower in manufacturing cost, is suitable for energy conservation and emission reduction can be used for reducing the environmental pollution and ensuring the product performance to be higher. The manufacturing method comprises the following steps: adding a polyester resin into a nanometer material subjected to surface activation treatment, uniformly stirring and then delivering into an extruder hopper; the insulation resin to be in a high-temperature viscous flow state by virtue of an extruder and continuously extruding from a die sleeve port of the extruder; meanwhile, aligning and preheating a bare copper wire, enabling the aligned and preheated bare copper wire to pass through a forming die of a machine head of the extruder, and packaging the insulation resin extruded from the die sleeve onto the bare copper wire; and cooling the bare copper wire covered with the insulation resin so as to obtain the H-level and 200-level electromagnetic wire; the electromagnetic wire eliminates a gap at a joint seam of a pin hole and a rolling covered wire, thus the electrical insulation performance is improved; and meanwhile, an inorganic nanometer material with high corona resistance and high thermal conductivity is added into insulating layer, the heat resistance of the insulating layer is improved, and the heat-conduction coefficient can achieve 0.60 W/Mk.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wire manufacturing for electricians, and relates to a new manufacturing process for electromagnetic wires used in high-voltage generators, high-voltage motors, rail traction motors, variable-frequency speed-regulating motors, and wind-driven generators. Specifically, it is a H-class, 200 Manufacturing method of grade magnet wire. Background technique [0002] In the electrical industry, magnet wire is in great demand. Generally, there are two types of magnet wires used in the motor and electrical industry: enameled wire and wrapped wire. In the enameled wire manufacturing process, the solid content of the enameled wire varnish is very small, less than 20%. To achieve a certain thickness of the paint film, it must be painted and baked many times to volatilize the solvent and cure the paint film. Not only wasting a large amount of organic solvents, but also causing serious pollution to the...

AI Technical Summary

Problems solved by technology

[0003] How to solve the problems of pollution and high energy consumption in the production process of mag

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