CN105623346A - Transformer iron core insulating coating formula and application method thereof - Google Patents
Transformer iron core insulating coating formula and application method thereof Download PDFInfo
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- CN105623346A CN105623346A CN201410615259.7A CN201410615259A CN105623346A CN 105623346 A CN105623346 A CN 105623346A CN 201410615259 A CN201410615259 A CN 201410615259A CN 105623346 A CN105623346 A CN 105623346A
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- insulating coating
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- core insulating
- transformer core
- iron core
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Abstract
The invention discloses a transformer iron core insulating coating formula and an application method thereof. The formula of an insulating coating comprises aluminium dihydrogen phosphate, silica sol, chromic acid, water, and an auxiliary agent, wherein a proportion of P to Si is 0.8-0.9, and Cr content is 2.5-3.75%. The formula has the advantage of simple coating method, and the finished product has the characteristics of good insulating property, adhesiveness, heat resistance, corrosion resistance and good surface quality.
Description
Technical field
The present invention relates to the formula of a kind of coating, the formula of especially a kind of transformer core insulating coating and using method thereof.
Background technology
In order to reduce the eddy-current loss of transformator, improve its electromagnetic performance, need at one layer of insulating coating of its surface smear, transformator for laminated core, the insulation resistance of currently used coating is big not, in order to make it have good insulating properties, tack, thermostability, corrosion resistance and good surface quality, the component proportion of insulating coating and using method are the key factors affecting insulating coating performance.
Summary of the invention
It is an object of the invention to provide the formula of a kind of transformer core insulating coating and using method thereof.
The purpose of the present invention is achieved through the following technical solutions: the formula of a kind of transformer core insulating coating, the formula of described insulating coating is aluminium dihydrogen phosphate, Ludox, chromic acid, water and auxiliary agent, wherein the ratio of P/Si is the content of 0.8-0.9, Cr is 2.5%-3.75%.
The using method of a kind of transformer core insulating coating, 1), by the stalloy constituting transformer core put into temperature be 70-80 DEG C, concentration be 5% sulfuric acid solution in pickling 30s, taking-up clear water rinses and dries up; 2), by the coating solution uniform application of above-mentioned formula to stalloy; 3), insert in vacuum drying box and dry.
The invention has the beneficial effects as follows: smearing method is simple, finished product has good insulating properties, tack, thermostability, corrosion resistance and good surface quality.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
The formula of a kind of transformer core insulating coating, the formula of described insulating coating is aluminium dihydrogen phosphate, Ludox, chromic acid, water and auxiliary agent, and wherein the ratio of P/Si is the content of 0.8-0.9, Cr is 2.5%-3.75%.
The using method of a kind of transformer core insulating coating, 1), by the stalloy constituting transformer core put into temperature be 70-80 DEG C, concentration be 5% sulfuric acid solution in pickling 30s, taking-up clear water rinses and dries up; 2), by the coating solution uniform application of above-mentioned formula to stalloy; 3), insert in vacuum drying box and dry.
This mode smearing method is simple, and finished product has good insulating properties, tack, thermostability, corrosion resistance and good surface quality.
Claims (2)
1. the formula of a transformer core insulating coating, it is characterised in that: the formula of described insulating coating is aluminium dihydrogen phosphate, Ludox, chromic acid, water and auxiliary agent, and wherein the ratio of P/Si is the content of 0.8-0.9, Cr is 2.5%-3.75%.
2. the using method of a transformer core insulating coating, it is characterised in that: 1), the stalloy constituting transformer core is put into temperature be 70-80 DEG C, concentration be 5% sulfuric acid solution in pickling 30s, taking-up clear water rinses and dries up; 2), by the coating solution uniform application of above-mentioned formula to stalloy; 3), insert in vacuum drying box and dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615259.7A CN105623346A (en) | 2014-11-05 | 2014-11-05 | Transformer iron core insulating coating formula and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615259.7A CN105623346A (en) | 2014-11-05 | 2014-11-05 | Transformer iron core insulating coating formula and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105623346A true CN105623346A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410615259.7A Pending CN105623346A (en) | 2014-11-05 | 2014-11-05 | Transformer iron core insulating coating formula and application method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105623346A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1208166B1 (en) * | 2000-03-16 | 2004-07-14 | POHANG IRON & STEEL CO., LTD. | Coating composition for forming insulating films, non-oriented electrical steel sheet with the coating composition coated thereon, and method for forming the insulating films on the steel sheet |
| CN101358096A (en) * | 2008-09-05 | 2009-02-04 | 首钢总公司 | Insulation environment friendly paint for non-oriented electrical steel |
| CN102558923A (en) * | 2012-01-04 | 2012-07-11 | 无锡华精新型材料有限公司 | Insulation coating coated on surface of oriented silicon steel strip |
-
2014
- 2014-11-05 CN CN201410615259.7A patent/CN105623346A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1208166B1 (en) * | 2000-03-16 | 2004-07-14 | POHANG IRON & STEEL CO., LTD. | Coating composition for forming insulating films, non-oriented electrical steel sheet with the coating composition coated thereon, and method for forming the insulating films on the steel sheet |
| CN101358096A (en) * | 2008-09-05 | 2009-02-04 | 首钢总公司 | Insulation environment friendly paint for non-oriented electrical steel |
| CN102558923A (en) * | 2012-01-04 | 2012-07-11 | 无锡华精新型材料有限公司 | Insulation coating coated on surface of oriented silicon steel strip |
Non-Patent Citations (1)
| Title |
|---|
| 胡志强等: "取向硅钢绝缘涂层性能的研究", 《电工材料》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |