A kind of non-oriented silicon steel coating and its application

A technology of oriented silicon steel and coating, applied in the direction of anti-corrosion coating, coating, etc., can solve the problems of difficult steel sheet coating, uneven brown appearance, poor adhesion of coating and steel sheet, etc., and achieve good surface condition and appearance Uniformity, the effect of eliminating environmental problems

Active Publication Date: 2017-08-25
上海迪升防腐新材料科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] Analyzing the above coatings, one disadvantage of these coatings is that their inorganic part contains free phosphoric acid, which is bound to react with the steel sheet at high temperatures, and also contains magnesium phosphate compounds, which must be cured at high temperatures , to prevent stickiness due to the presence of unreacted phosphoric acid or hygroscopic phosphate compounds
However, at such high curing temperatures, the resin degrades, producing an uneven brown appearance and poor adhesion of the coating to the steel sheet
Another disadvantage is that uniform coating over the entire width of the steel sheet is difficult with grooved rubber dosing rollers due to thin coating streaks

Method used

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  • A kind of non-oriented silicon steel coating and its application
  • A kind of non-oriented silicon steel coating and its application
  • A kind of non-oriented silicon steel coating and its application

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Embodiment Construction

[0024] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0025] The non-oriented silicon steel coating was prepared according to the formula shown in Table 1, coated on the non-oriented silicon steel plate, and heat-treated at 550°C for 30 seconds to obtain a silicon steel plate with an insulating coating film of 1.5 microns.

[0026] The specific preparation steps are as follows: according to the formula ratio in Table 1, the silicone resin was added into a 500ml three-necked flask, and the...

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Abstract

The invention discloses a non-oriented silicon steel coating and its application. Based on the total mass of the coating, its components and corresponding mass percentages are: organic silicon resin, 10%-25%; aluminum dihydrogen phosphate, 10% ~30%; zinc dihydrogen phosphate, 6%~20%; colloidal silica, 4%~26%; propylene glycol, 1%~3%; the balance is water. The non-oriented silicon steel coating of the present invention not only completely eliminates the environmental protection problems caused by the chromium element, but also has the characteristics of good surface condition, high adhesion, high insulation, high corrosion resistance, high temperature resistance and high weldability, and can be widely used It is suitable for preparing non-oriented silicon steel coating, especially suitable for surface coating treatment of cold-rolled non-oriented electrical steel sheet.

Description

technical field [0001] The invention relates to a non-oriented silicon steel coating and its application, in particular to an organic-inorganic environment-friendly insulating coating for non-oriented silicon steel and its application to form an anti-corrosion insulating coating, which is used in the technical field of silicon steel insulating coating preparation . Background technique [0002] Non-oriented silicon steel is mainly used as the motor core material of various motors, transformers and most household appliances. In order to reduce the eddy current loss of silicon steel plate, ensure that the surface of non-oriented silicon steel has a high resistivity, so that the power loss between layers is minimized. , while protecting the silicon steel from various corrosive media, so it is necessary to coat the surface of the silicon steel with an insulating anti-corrosion coating. [0003] At present, there are three main types of non-oriented silicon steel coatings: organ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D5/08C09D7/12
Inventor 王晨曾丽
Owner 上海迪升防腐新材料科技有限公司
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