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Insulating paint composition

A technology of insulating coatings and compositions, applied in the direction of coatings, etc., can solve the problems of high toxicity of chromate, harmful effects on the human body and the environment, and heavy pollution, and achieve high breakdown resistance, good insulation performance, and interlayer resistance. Effect

Inactive Publication Date: 2013-03-13
QINGDAO XUANWEI COATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional insulating coatings often use chromate as a component, and chromate is highly toxic and polluting, causing harmful effects on the human body and the environment. Many well-known domestic companies' electrical steel insulating coatings introduced foreign technologies in the early years also contain chromium. Salt, which has attracted great attention from all over the world

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, an insulating coating composition made of the following raw materials in parts by weight: 4 parts of vinylbenzene, 20 parts of dihydrogen phosphate, 5 parts of cobalt naphthenate, 3 parts of acetate, 1 part of acrylic acid, 7 parts of epoxy resin, 3 parts of magnesium oxide, 2 parts of linoleic acid.

Embodiment 2

[0012] Example 2, an insulating coating composition made of the following raw materials in parts by weight: 6 parts of vinylbenzene, 30 parts of dihydrogen phosphate, 10 parts of cobalt naphthenate, 5 parts of acetate, 4 parts of acrylic acid, 10 parts of epoxy resin, 6 parts of magnesium oxide, 5 parts of linoleic acid.

Embodiment 3

[0013] Example 3, an insulating coating composition made of the following raw materials in parts by weight: 8 parts of vinylbenzene, 40 parts of dihydrogen phosphate, 15 parts of cobalt naphthenate, 7 parts of acetate, 6 parts of acrylic acid, 14 parts of epoxy resin, 8 parts of magnesium oxide, 7 parts of linoleic acid.

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PUM

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Abstract

The invention discloses an insulating paint composition which is prepared from raw materials in parts by weight as follows: 4-8 parts of vinyl benzene, 20-40 parts of dihydric phosphate, 5-15 parts of cobalt naphthenate, 3-7 parts of acetic ester, 1-6 parts of acrylic acid, 7-14 parts of epoxy resin, 3-8 parts of magnesium oxide and 2-7 parts of linoleic acid. The invention provides the insulating paint composition which is good in insulation, good in coating performance, higher in interlamination resistance and higher in anti-breakdown performance and environment-friendliness.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an insulating coating composition. Background technique [0002] The non-oriented silicon steel sheets used in motors and transformers should have a layer of insulating coating, so that the eddy current loss of the stator can be reduced after the silicon steel sheets are stacked into stator materials. The silicon steel sheet also needs to have good adhesion to ensure that it will not fall off from the edge of the silicon steel sheet during punching. At the same time, the insulating coating should not be excessively pulverized when punching, grooving or shearing, so as not to accumulate on the feed roller or On other equipment, the dies used to stamp or shear the laminations are worn. The insulating coating must withstand stress-relief annealing, and the annealed coating should have a glossy black appearance. [0003] Traditional insulating coatings often use chromate as a comp...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12C09D5/25
Inventor 李光俊李少香刘来运
Owner QINGDAO XUANWEI COATING MATERIAL