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Coating for transformer and preparation method of coating

A technology for transformers and coatings, used in fire-resistant coatings, coatings, etc., can solve problems such as weak adhesion, easy swelling, and reduced service life of transformers, and achieves excellent sealing, compact and tight coating film, and excellent adhesion good effect

Inactive Publication Date: 2017-10-27
安徽新智电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The transformer is mostly in the outdoor environment, and its own temperature will be generated. Coupled with the scorching sun, the outer surface temperature is often high. The coating used in the existing transformer has poor high temperature resistance and weak adhesion. After long-term use , easy to crack, easy to swell, resulting in falling off, making the transformer easy to be rusted and reducing the service life of the transformer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Each raw material is taken by weight in the following parts: 100 parts of epoxy modified silicone resin, 25 parts of hydroxyethyl cellulose, 8 parts of talcum powder, 18 parts of ceramic microbeads, 28 parts of propylene glycol methyl ether acetate, 12 parts of nano-sized alumina, 20 parts of nano-sized magnesium oxide, 15 parts of aluminum-doped zinc oxide, 8 parts of calcium stearate, 8 parts of slag powder, 17 parts of graphite, 25 parts of xylene, 12 parts of water glass, n-butyl 12 parts of alcohol, 22 parts of filler, 11 parts of nonionic surfactant, 6 parts of curing agent, 3 parts of leveling agent, 4 parts of defoamer;

[0023] (2) Add all the raw materials into the reaction kettle, and stir at a speed of 550-650 rpm for 2-3 hours under the condition of 90-150°C;

[0024] (3) Grinding the homogeneously mixed material, and then sieving to obtain the paint, the mesh of the sieved paint is greater than 400 mesh.

Embodiment 2

[0026] (1) Take each raw material by the following parts by weight: 100 parts of epoxy-modified silicone resin, 20 parts of hydroxyethyl cellulose, 10 parts of talcum powder, 20 parts of ceramic microbeads, 32 parts of propylene glycol methyl ether acetate, 22 parts of nano-sized alumina, 28 parts of nano-sized magnesium oxide, 13 parts of aluminum-doped zinc oxide, 10 parts of calcium stearate, 9 parts of slag powder, 19 parts of graphite, 29 parts of xylene, 15 parts of water glass, n-butyl 15 parts of alcohol, 25 parts of filler, 15 parts of nonionic surfactant, 8 parts of curing agent, 5 parts of leveling agent, 5 parts of defoamer;

[0027] (2) Add all the raw materials into the reaction kettle, and stir at a speed of 550-650 rpm for 2-3 hours under the condition of 90-150°C;

[0028] (3) Grinding the homogeneously mixed material, and then sieving to obtain the paint, the mesh of the sieved paint is greater than 400 mesh.

Embodiment 3

[0030] (1) Each raw material is taken by weight in the following parts: 100 parts of epoxy-modified silicone resin, 15 parts of hydroxyethyl cellulose, 5 parts of talcum powder, 15 parts of ceramic microbeads, 26 parts of propylene glycol methyl ether acetate, 15 parts of nano-sized alumina, 25 parts of nano-sized magnesium oxide, 10 parts of aluminum-doped zinc oxide, 6 parts of calcium stearate, 6 parts of slag powder, 16 parts of graphite, 22 parts of xylene, 14 parts of water glass, n-butyl 10 parts of alcohol, 20 parts of filler, 13 parts of nonionic surfactant, 7 parts of curing agent, 2 parts of leveling agent, 4 parts of defoamer;

[0031] (2) Add all the raw materials into the reaction kettle, and stir at a speed of 550-650 rpm for 2-3 hours under the condition of 90-150°C;

[0032] (3) Grinding the homogeneously mixed material, and then sieving to obtain the paint, the mesh of the sieved paint is greater than 400 mesh.

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PUM

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Abstract

The invention discloses a coating for a transformer and a preparation method of the coating. The coating is prepared from the following raw materials: epoxy modified organic silicon resin, hydroxyethyl cellulose, talcum powder, ceramic microspheres, propylene glycol methyl ether acetate, nanoscale aluminum oxide, nanoscale magnesium oxide, aluminum-doped zinc oxide, calcium stearate, slag powder, graphite, dimethylbenzene, water glass, n-butyl alcohol, a filler, a nonionic surfactant, a curing agent, a flatting agent and an anti-foaming agent. By selecting reasonable raw materials and ratios, various raw materials work together and are supplemented with each other, so that the coating is extremely good in adhesive force and excellent in closing property, and a film is compact and neat, free of cracking or swelling and high-temperature resistant.

Description

technical field [0001] The invention relates to the technical field of power transformation equipment, in particular to a coating for a transformer and a preparation method thereof. Background technique [0002] The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. [0003] The transformer is mostly in the outdoor environment, and its own temperature will be generated. Coupled with the scorching sun, the outer surface temperature is often high. The coating used in the existing transformer has poor high temperature resistance and weak adhesion. After long-term use , easy to crack, easy to swell, resulting in falling off, making the transformer easy to be rusted and reducin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D7/12
CPCC09D183/06C08K2003/222C08K2003/2227C08K2003/2296C08K2201/011C08K2201/014C08L2201/08C08L2203/20C08L2205/035C09D5/18C08L1/284C08K13/04C08K7/24C08K3/34C08K3/22C08K3/04
Inventor 王凯
Owner 安徽新智电力科技有限公司
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