Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof

A technology of oriented silicon steel and insulating coatings, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of unsatisfactory properties such as heat resistance and weldability, and achieve good water vapor absorption resistance and good surface resistivity , Excellent adhesion effect

Active Publication Date: 2010-02-10
上海迪升防腐新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of coating eliminates the harmful effects of chromium and volatile organic compounds on the environment and human body, it is not ideal in terms of heat resistance and weldability.

Method used

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  • Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof
  • Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof
  • Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof

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Experimental program
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Embodiment Construction

[0026] The insulating coating prepared according to the formula shown in Table 1 was coated on the non-oriented steel plate, and heat-treated at 650° C. for 30 seconds to obtain a silicon steel plate with an insulating coating film with a thickness of 1.5 μm.

[0027] The specific preparation steps are as follows: according to the formula ratio in Table 1, the corresponding amount of polyurethane-acrylate-ethylene oxide resin and deionized water are added to the reaction vessel, and then the corresponding amount of aluminum dihydrogen phosphate, isopropyl Magnesium alkoxide, zinc acetate, colloidal silicon dioxide and nonionic surfactant are stirred evenly to prepare the coating.

[0028] The formula of each composition is as shown in table 1 (surplus is deionized water):

[0029] Table 1 Composition of paint components

[0030]

[0031] (Note: A is magnesium isopropoxide, B polyurethane-acrylate-ethylene oxide resin, C is aluminum dihydrogen phosphate, D is zinc acetate, ...

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Abstract

The invention relates to an insulating paint of non-oriented silicon steel and discloses an insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and an application thereof. The paint of the invention comprises the following components by weight percent: 5-20% of magnesium isopropylate, 5-25% of polyurethane-acrylate-ethylene oxide resin, 5-40% of aluminium dihydrogen phosphate, 5-10% of zinc acetate, 11-30% of colloidal silica, 1-5% of non-ionic surface active agent and the balance deionized water. The insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint of the invention can not only completely eliminate the environmental problem caused by chromium element, but also ensure that all the performances of the paintsuch as uniformity, corrosion resistance, heat resistance, weldability and the like are good.

Description

technical field [0001] The invention relates to an environment-friendly organic-inorganic hybrid coating composition for forming an insulating coating and an application thereof, which is used in the technical field of preparation of insulating coatings on silicon steel. Background technique [0002] Non-oriented silicon steel is widely used as the iron core material of motors and transformers because of its uniform thickness, high dimensional accuracy, smooth surface, high filling factor and material magnetic properties. In order to reduce the eddy current loss of non-oriented silicon steel, ensure that the non-oriented silicon steel has a high surface resistivity, minimize the power loss between layers, and protect the silicon steel from corrosion and corrosion of various corrosive media, it is necessary to conduct an insulating layer on the surface of the silicon steel coating treatment. [0003] Non-oriented silicon steel insulating coating is an insulating coating comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12C09D5/25
Inventor 王晨齐素芳陈正中
Owner 上海迪升防腐新材料科技有限公司
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