Manufacturing method of mica tape

Abstract

The invention relates to a mica tape manufacturing method with low production cost. With the method, environment pollution is reduced. The method is suitable for energy saving and emission reduction. The method comprises the steps that: a nano-grade material processed through a surface activation treatment is added to mica powder; the nano-grade material and the mica powder are subject to high-speed stirring dispersion, and an obtained uniformly-mixed material is preserved for later use; a first adhesive is coated on a reinforcing material by using a roller; with an electrostatic field, the mica raw material is absorbed onto the reinforcing material; a second adhesive is sprayed onto the mica raw material of the reinforcing material; the one-side reinforced mica tape half-finished product is delivered through a baking oven, such that an organic solvent is removed by baking; the product is cooled, and is rolled and coiled by using a roller, such that a one-side reinforced mica tape finished product is obtained. The invention relates to a novel production technology designed according to natural characteristics of electric charges. Only a small amount of the solvent is required, such that the production cost of the mica tape is reduced, and environment pollution caused by the organic solvent is greatly reduced. Also, production speed can be improved, and baking temperature can be reduced, such that electric energy consumption can be reduced by approximately 1 / 3.

Description

technical field [0001] The invention relates to the technical field of electrical insulating material manufacturing, and relates to a new manufacturing process for high-voltage generators and high-voltage motors with more or less glue mica tape, in particular to a mica tape manufacturing method. Background technique [0002] Mica tape is the most irreplaceable and critical insulating material for motors, especially large-scale, high-voltage motors, wind turbines, and large-scale variable-frequency speed-regulating motors. Mica tape is used to bond reinforcing materials and mica paper together with adhesives Cut and formed strip insulation material. During the mica tape manufacturing process, the adhesive must be dissolved into a solution with a large amount of organic solvent. At present, when mica tape manufacturers manufacture mica tape, the solid content of the tape adhesive is usually only about 10%, and 90% is Organic solvents. The solid content of the multi-tape adhe...

AI Technical Summary

Problems solved by technology

The solid content of the multi-tape adhesive is only about 40%. A large amount of organic solvents volatilize after baking in the mica tape production process. The content of organic solvents in the mica tape is less than 1%. The volatilization of these organic solvents not only causes waste. Increase the production cost of mica tape, and more seriously pollute the environment

[0003] How to solve the problem that a large amount of organic solvent needs to be consumed in the production process of less glue mica tape, which causes high production cost of mica tape and seriously pollutes the environment is a technical problem in this field

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