Preparation method of nanometer modified corona-tolerant enamel of enameled wire

A wire enamel and nano-modification technology, which is applied in coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve problems such as difficult dispersion, improve dispersion state, improve flexibility and adhesion, and store stability Effect
CN1546586AActive Publication Date: 2004-11-17江苏东材新材料有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江苏东材新材料有限责任公司
Publication Date
2004-11-17

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Abstract

The invention discloses a preparation method of nanometer modified corona-tolerant enamel of enameled wire which comprises the steps of, taking 1-20 parts of inorganic oxide nano particles, charging 3-100 organic solvent, dispersing the inorganic oxide into uniform nano dispersed state at room temperature, charging 0.1-1.0 part of modifier for reacting 1-3 hours at 50-140 deg. C, obtaining modified nano material slurry, charging 60-100 parts of insulating resin into modified nano material slurry for reacting 3-6 hours at 70-120 deg. C.
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Description

Technical field

[0001] The invention relates to a preparation method of a paint, in particular to a preparation method of a nano-modified enameled wire varnish. The nano-modified enameled wire varnish is used for coating corona-resistant enameled wire to improve its comprehensive performance, especially to improve the corona-resistant performance, and can be used in the manufacture of AC variable frequency motors. Background technique

[0002] Due to the remarkable characteristics of AC variable frequency motors, AC variable frequency motors have developed rapidly in recent years, but until now, all manufacturers of such motors have encountered a prominent problem, that is, premature failure of winding insulation performance. This is because the inverter motor regulator will generate overload voltage in the motor winding when it rotates at high speed, the magnet wire in this type of stator will be under greater stress than under the action of ordinary alternating current, an...

Claims

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