CN111768948A - Corrosion-resistant transformer for coastal region - Google Patents
Corrosion-resistant transformer for coastal region Download PDFInfo
- Publication number
- CN111768948A CN111768948A CN202010168461.5A CN202010168461A CN111768948A CN 111768948 A CN111768948 A CN 111768948A CN 202010168461 A CN202010168461 A CN 202010168461A CN 111768948 A CN111768948 A CN 111768948A
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- parts
- transformer
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- corrosion
- coating
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/23—Corrosion protection
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a corrosion-resistant transformer for coastal areas, which comprises a box body, a transformer shell and a transformer main body, wherein the transformer shell and the transformer main body are arranged in the box body, the box body and the transformer shell are both made of metal plates, a saline-alkali corrosion resistant coating layer, an anticorrosive layer and a pigment layer are sequentially arranged on the metal plates from inside to outside, and the coating layer comprises the following components in parts by weight: 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents. This application coats saline and alkaline corrosion resistant dope layer, anticorrosive coating and pigment layer on sheet metal's basis, and saline and alkaline corrosion resistant coating is through modifying epoxy to introduce polycarbonate, nanometer carborundum, silica sol, polytetrafluoroethylene, improved the weatherability of coating and saline and alkaline corrosion resistant performance.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a corrosion-resistant transformer for coastal areas.
Background
The transformer is necessary electrical equipment in power transmission and distribution, the material of the transformer mainly comprises stainless steel, SMC and the like, and the corrosion resistance can meet the requirements of various severe environments. However, most of the current domestic transformers are made of aluminum-zinc-plated steel plates, and the corrosion resistance of the aluminum-zinc-plated steel plates is excellent in inland environments mainly caused by weak acid corrosion, but in coastal areas or marine environments, the corrosion resistance of the transformers in saline-alkali environments cannot be satisfied due to the fact that seawater is alkaline. Therefore, it is of great significance to research a transformer for coastal areas.
Disclosure of Invention
In order to solve the problem that the corrosion resistance of the transformer in the coastal region is not strong in the prior art, the invention provides the corrosion-resistant transformer for the coastal region.
The utility model provides a corrosion-resistant transformer for coastal area, includes the box, and sets up transformer housing, transformer main part in it, box and transformer housing are formed by the sheet metal preparation, sheet metal is last from inside to outside to be equipped with in proper order resistant saline and alkaline corrosion's dope layer, anticorrosive coating and pigment layer, the dope layer includes each component of following part by weight: 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents.
In a preferred embodiment of the present invention, the modified epoxy resin comprises the following components in parts by weight: 65-80 parts of epoxy resin, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin.
In a preferred embodiment of the present invention, the auxiliary agent is one or more of a dispersant, a curing agent, and a solvent.
In a preferred embodiment of the present invention, the preparation method of the coating layer is as follows:
(1) according to the weight parts, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin are uniformly mixed and dripped into an organic solvent in a reaction kettle, the temperature is slowly increased to 140 ℃, 65-80 parts of epoxy resin is added into the reaction kettle for reaction, and after the reaction is finished, the modified epoxy resin is obtained by filtering; (2) according to parts by weight, uniformly mixing 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents in a mixer, and adjusting the pH value of the mixture components to 6;
(3) dropwise adding a mixture of silica sol and cerium nitrate into the mixed components in a nitrogen or helium atmosphere, uniformly stirring and mixing, and grinding until the fineness is below 20 mu m to obtain the coating.
In a preferred embodiment of the invention, the coating layer is formed by spraying the coating on the surfaces of the box body and the transformer shell by using vacuum pressure spraying equipment.
In a preferred embodiment of the invention, the tank and the transformer housing are connected by fasteners treated by the dacromet technique.
In a preferred embodiment of the present invention, the thickness of the corrosion protection layer is greater than or equal to 150 μm.
In a preferred embodiment of the invention, the anti-corrosion layer is formed by putting the box body and the transformer shell into an electrolyte solution, using the box body and the transformer shell as cathodes, forming a coating on the surfaces of the box body and the transformer shell under the action of an external current, coating a layer of preservative on the surfaces of the box body and the transformer shell after electroplating, and cooling and solidifying the preservative.
In a preferred embodiment of the present invention, the thickness of the pigment layer is less than or equal to 1 mm.
In a preferred embodiment of the invention, the pigment layer is formed by putting the box body and the transformer shell as one electrode into a conductive aqueous solution or water-emulsified paint, forming an electrolytic circuit with the other electrode in the paint, and electrophoresing charged resin ions to the surface together with adsorbed pigment particles to form a coating.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the application, the saline-alkali corrosion resistant coating layer, the anticorrosive layer and the pigment layer are coated on the basis of the metal plate, so that the saline-alkali corrosion resistance of the transformer is improved;
(2) according to the saline-alkali corrosion resistant coating, the epoxy resin is modified, and the polycarbonate, the nano silicon carbide and the silica sol are introduced, so that the weather resistance and the corrosion resistance of the coating are improved, and the transformer can have a long service life even if the transformer is applied to coastal areas with strong ultraviolet rays and high salt spray acid-base concentration;
(3) this application adds polytetrafluoroethylene in the coating, and polytetrafluoroethylene has good chemical stability, corrosion resistance, leakproofness, electrical insulation and good ageing resistance, by the probability of corroding when can effectively reducing surface transformer and suffer rainwater soaking in external environment for the lacquer on transformer housing surface can be used longer time.
Detailed Description
The present invention will be described in further detail with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a corrosion-resistant transformer for coastal area, includes the box, and sets up transformer housing, transformer main part in it, box and transformer housing are formed by the sheet metal preparation, sheet metal is last from inside to outside to be equipped with in proper order resistant saline and alkaline corrosion's dope layer, anticorrosive coating and pigment layer, the dope layer includes each component of following part by weight: 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents.
In this embodiment, the modified epoxy resin includes the following components in parts by weight: 65-80 parts of epoxy resin, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin.
In this embodiment, the auxiliary agent is one or more of a dispersant, a curing agent, and a solvent.
In this embodiment, the preparation method of the coating layer is as follows:
(1) according to the weight parts, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin are uniformly mixed and dripped into an organic solvent in a reaction kettle, the temperature is slowly increased to 140 ℃, 65-80 parts of epoxy resin is added into the reaction kettle for reaction, and after the reaction is finished, the modified epoxy resin is obtained by filtering;
(2) according to parts by weight, uniformly mixing 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents in a mixer, and adjusting the pH value of the mixture components to 6;
(3) dropwise adding a mixture of silica sol and cerium nitrate into the mixed components in a nitrogen or helium atmosphere, uniformly stirring and mixing, and grinding until the fineness is below 20 mu m to obtain the coating.
In the embodiment, the coating layer is formed by spraying the coating on the surfaces of the box body and the transformer shell by using vacuum pressure spraying equipment.
In this embodiment, the tank and the transformer housing are connected by fasteners treated by the dacromet technique.
In this embodiment, the thickness of the anticorrosive layer is 150 μm or more.
In this embodiment, the anti-corrosion layer is formed by placing the box body and the transformer housing in an electrolyte solution, using the box body and the transformer housing as cathodes, forming a coating on the surfaces of the box body and the transformer housing under the action of an external current, coating a layer of anti-corrosion agent on the surfaces of the box body and the transformer housing after electroplating, and cooling and solidifying the coating.
In this embodiment, the thickness of the pigment layer is 1mm or less.
In this embodiment, the pigment layer is formed by putting the box and the transformer housing as one electrode into a conductive aqueous solution or water-emulsified paint, forming an electrolytic circuit with the other electrode in the paint, and electrophoresing the charged resin ions together with the adsorbed pigment particles onto the surface to form a coating.
According to the application, the saline-alkali corrosion resistant coating layer, the anticorrosive layer and the pigment layer are coated on the basis of the metal plate, so that the saline-alkali corrosion resistance of the transformer is improved; according to the saline-alkali corrosion resistant coating, the epoxy resin is modified, and the polycarbonate, the nano silicon carbide and the silica sol are introduced, so that the weather resistance and the corrosion resistance of the coating are improved, and the transformer can have a long service life even if the transformer is applied to coastal areas with strong ultraviolet rays and high salt spray acid-base concentration; the polytetrafluoroethylene is added into the paint, has good chemical stability, corrosion resistance, sealing property, electrical insulation property and aging resistance, and can effectively reduce the probability of corrosion of the surface transformer when being soaked in rainwater in the external environment, so that the paint on the surface of the transformer shell can be used for a longer time.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a corrosion-resistant transformer for coastal area, its characterized in that includes the box, and transformer housing, the transformer main part of setting in it, box and transformer housing are formed by the sheet metal preparation, sheet metal is last to be equipped with saline and alkaline corrosion resistant dope layer, anticorrosive coating and pigment layer from inside to outside in proper order, the dope layer includes each component of following part by weight: 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents.
2. The corrosion-resistant transformer for the coastal region according to claim 1, wherein the modified epoxy resin comprises the following components in parts by weight: 65-80 parts of epoxy resin, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin.
3. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the auxiliary agent is one or more of a dispersing agent, a curing agent and a solvent.
4. The corrosion-resistant transformer for the coastal region according to claim 1, wherein the paint of the paint layer is prepared by the following steps:
(1) according to the weight parts, 10-15 parts of polypropylene carbonate, 5-10 parts of tert-butyl phenolic aldehyde and 5-10 parts of rosin resin are uniformly mixed and dripped into an organic solvent in a reaction kettle, the temperature is slowly increased to 140 ℃, 65-80 parts of epoxy resin is added into the reaction kettle for reaction, and after the reaction is finished, the modified epoxy resin is obtained by filtering;
(2) according to parts by weight, uniformly mixing 10-20 parts of ethanol, 40-60 parts of modified epoxy resin, 15-25 parts of nano silicon carbide, 10-25 parts of polytetrafluoroethylene, 8-15 parts of polycarbonate, 3-5 parts of polyvinyl acetate, 3-5 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of asbestos and 1-5 parts of other auxiliary agents in a mixer, and adjusting the pH value of the mixture components to 6;
(3) dropwise adding a mixture of silica sol and cerium nitrate into the mixed components in a nitrogen or helium atmosphere, uniformly stirring and mixing, and grinding until the fineness is below 20 mu m to obtain the coating.
5. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the coating layer is formed by spraying the coating on the surfaces of the box body and the transformer shell by using vacuum pressurization spraying equipment.
6. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the box body and the transformer shell are connected through a fastener, and the fastener is processed through the Dacromet technology.
7. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the thickness of the anticorrosive layer is more than or equal to 150 mu m.
8. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the anti-corrosion layer is formed by putting the box body and the transformer shell into an electrolyte solution, taking the box body and the transformer shell as cathodes, forming a layer of plating on the surfaces of the box body and the transformer shell under the action of external current, coating a layer of anti-corrosion agent on the surfaces of the box body and the transformer shell after electroplating, and cooling and solidifying the anti-corrosion layer.
9. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the thickness of the pigment layer is less than or equal to 1 mm.
10. A corrosion resistant transformer for use in coastal areas as defined in claim 1, wherein: the pigment layer is formed by putting the box body and the transformer shell as one electrode into conductive aqueous solution or water-emulsified paint, forming an electrolytic circuit with the other electrode in the paint, and electrophoresing charged resin ions and adsorbed pigment particles to the surface together to form a coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168461.5A CN111768948A (en) | 2020-03-12 | 2020-03-12 | Corrosion-resistant transformer for coastal region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168461.5A CN111768948A (en) | 2020-03-12 | 2020-03-12 | Corrosion-resistant transformer for coastal region |
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| Publication Number | Publication Date |
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| CN111768948A true CN111768948A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010168461.5A Pending CN111768948A (en) | 2020-03-12 | 2020-03-12 | Corrosion-resistant transformer for coastal region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763457A (en) * | 2020-03-12 | 2020-10-13 | 江苏铭安电气有限公司 | Corrosion-resistant transformer for coastal region |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150315407A1 (en) * | 2012-12-13 | 2015-11-05 | Lg Innotek Co., Ltd. | Elastomer composition and magnetic ferrite coated with the same |
| CN107057530A (en) * | 2016-12-23 | 2017-08-18 | 句容亿格纳米材料厂 | Coating and its preparation and application that a kind of light pole that borders on the sea is used |
| CN108735443A (en) * | 2018-05-04 | 2018-11-02 | 太仓永瑞检测装备科技有限公司 | High insulating radiation type transformer |
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2020
- 2020-03-12 CN CN202010168461.5A patent/CN111768948A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150315407A1 (en) * | 2012-12-13 | 2015-11-05 | Lg Innotek Co., Ltd. | Elastomer composition and magnetic ferrite coated with the same |
| CN107057530A (en) * | 2016-12-23 | 2017-08-18 | 句容亿格纳米材料厂 | Coating and its preparation and application that a kind of light pole that borders on the sea is used |
| CN108735443A (en) * | 2018-05-04 | 2018-11-02 | 太仓永瑞检测装备科技有限公司 | High insulating radiation type transformer |
Non-Patent Citations (5)
| Title |
|---|
| 何天白等: "《功能高分子与新技术》", 31 January 2001, 化学工业出版社 * |
| 彭安顺: "《有机化学》", 30 September 2012, 山东人民出版社 * |
| 申小平: "《粉末冶金制造工程》", 30 June 2015, 国防工业出版社 * |
| 谭修彦: "《机械故障诊断与维修》", 30 November 2017, 西南交通大学出版社 * |
| 邹文俊: "《有机磨具制造》", 30 September 2001, 中国标准出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763457A (en) * | 2020-03-12 | 2020-10-13 | 江苏铭安电气有限公司 | Corrosion-resistant transformer for coastal region |
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Application publication date: 20201013 |
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