CN104103382A - Electromagnetic wire dry insulating paint painting process - Google Patents
Electromagnetic wire dry insulating paint painting process Download PDFInfo
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- CN104103382A CN104103382A CN201410381958.XA CN201410381958A CN104103382A CN 104103382 A CN104103382 A CN 104103382A CN 201410381958 A CN201410381958 A CN 201410381958A CN 104103382 A CN104103382 A CN 104103382A
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- solvent
- paint
- electromagnetic wire
- dry
- epoxy colloid
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Abstract
The invention discloses an electromagnetic wire dry insulating paint painting process. The process includes preparing thick epoxy colloid, adding a solvent into phenol intermediate to conduct catalytic reaction under the temperature of 75-85 DEG C to form the thick epoxy colloid with the viscosity of the epoxy colloid as 75%, wherein the adding ratio of the phenol intermediate and the solvent is 1:0.1-0.3, the solvent is 90% acetone and 10% alcohol; conducting painting and dying twice to enable the thick epoxy collide to form a paint film on a bare copper flat wire with the thickness of the dried paint film as 0.1 and the drying temperature as 350 DEG C; finishing the painting process. The process saves plenty of power, raw materials and production time, reduces production cost, does not requiring catalyzing, improves efficiency and is good in insulation performance.
Description
Technical field
The present invention relates to the electromagnetic wire insulating varnish in a kind of transformer production, specifically a kind of enamelling process of electromagnetic wire dry insulation paint.
Background technology
Current domestic electromagnetic wire insulating varnish is all that phenol intermediate adds 60% left and right acetone, alcohol equal solvent, make insulating varnish in rheum body state, be convenient to smear mopping, then pass through catalyst furnace, drying oven high-temperature catalytic, cure, intermediate and solvent reaction form fine and close insulation paint film and are attached on electromagnetic wire.Enamelling process need to pass through catalyst furnace, drying oven high-temperature catalytic, cure, at this moment insulating varnish phenol intermediate only with a small amount of solvent reaction, unnecessary solvent and intermediate at high temperature volatilize, and form gas and discharge, and cause environmental pollution.This is primary pollution source in electromagnetic wire production process.In addition because insulating varnish is rheum body state, on bare copper flat wire, can only form one deck paint film of book book, after catalysis is dried, paint film is book more, only has 0.01mm, reach dielectric strength, japanning repeatedly, catalysis, oven dry, often, through 7 ~ 9 japannings, catalysis, drying course, reach the film thickness of 0.1mm, reach safe insulation intensity.Electric energy, raw material, production time are wasted larger, and production cost is high.
Summary of the invention
In order to overcome the problem of prior art existence, the object of this invention is to provide a kind of enamelling process of electromagnetic wire dry insulation paint, enamelling process only needs just to reach technical requirement twice, has saved a large amount of electric energy, raw material, production time, and production cost reduces; Without catalysis, improve efficiency; Good insulation preformance.
Object of the present invention is achieved through the following technical solutions:
An enamelling process for electromagnetic wire dry insulation paint, is characterized in that this technique comprises the following steps:
1) prepare thick epoxy colloid, phenol intermediate solubilizer, 75-85 DEG C of catalytic reaction, forms thick epoxy colloid; The viscosity of epoxy colloid is 75%, and wherein, the additional proportion of phenol intermediate and solvent is 1:0.1-0.3, and solvent is 90% acetone, 10% alcohol;
2) paint for the first time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.05mm, and bake out temperature is 350 DEG C;
3) paint for the second time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.1mm, and bake out temperature is 350 DEG C, completes enamelling process.
In the present invention, phenol intermediate solubilizer is 80 DEG C of catalytic reactions.The additional proportion of phenol intermediate and solvent is 1:0.2.
The present invention adopts dry insulation japanning, and because dry insulation is the epoxy colloid of thickness, the thickness that forms paint film on bare copper flat wire is thicker, after oven dry, can reach 0.05mm, so only need repeat japanning, oven dry twice, just can reach technical standard.Catalysis in advance of dry insulation paint in addition, as long as paint, dry, without catalysis, has saved timeliness while therefore production.
The invention has the beneficial effects as follows: enamelling process only needs just to reach technical requirement twice, repeat 7 ~ 9 times without the former technique of picture, saved a large amount of electric energy, raw material, production time, production cost reduces; Without catalysis, reduce technology difficulty and complexity, improve efficiency; Dry insulation paint is unified catalysis in advance, and qualified product just can enter next procedure, have avoided the inadequate hidden danger of catalysis in enamel-cover production process, and insulation property are got a promotion.
Embodiment
An enamelling process for electromagnetic wire dry insulation paint, comprises the following steps:
1) prepare thick epoxy colloid, phenol intermediate solubilizer, 75-85 DEG C of catalytic reaction, forms thick epoxy colloid; The viscosity of epoxy colloid is 75%, and wherein, the additional proportion of phenol intermediate and solvent is 1:0.2, and solvent is 90% acetone, 10% alcohol;
2) paint for the first time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.05mm, and bake out temperature is 350 DEG C;
3) paint for the second time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.1mm, and bake out temperature is 350 DEG C, completes enamelling process.
Because dry insulation is the epoxy colloid of thickness, the thickness that forms paint film on bare copper flat wire is thicker, after first drying, can reach 0.05mm, so only need repeat japanning, oven dry twice, the thickness that forms paint film reaches 0.1mm.Just can reach technical standard, save a large amount of electric energy, raw material, production time, production cost reduces.Catalysis in advance of dry insulation paint in addition, as long as paint, dry, without catalysis, reduces technology difficulty and complexity while therefore production, has improved efficiency.Dry insulation paint is unified catalysis in advance, and qualified product just can enter next procedure, have avoided the inadequate hidden danger of catalysis in enamel-cover production process, and insulation property get a promotion.
Claims (3)
1. an enamelling process for electromagnetic wire dry insulation paint, is characterized in that this technique comprises the following steps:
1) prepare thick epoxy colloid, phenol intermediate solubilizer, 75-85 DEG C of catalytic reaction, forms thick epoxy colloid; The viscosity of epoxy colloid is 75%, and wherein, the additional proportion of phenol intermediate and solvent is 1:0.1-0.3, and solvent is 90% acetone, 10% alcohol;
2) paint for the first time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.05mm, and bake out temperature is 350 DEG C;
3) paint for the second time, dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.1mm, and bake out temperature is 350 DEG C, completes enamelling process.
2. the enamelling process of electromagnetic wire dry insulation paint according to claim 1, is characterized in that: phenol intermediate solubilizer is 80 DEG C of catalytic reactions.
3. the enamelling process of electromagnetic wire dry insulation paint according to claim 1, is characterized in that: the additional proportion of phenol intermediate and solvent is 1:0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381958.XA CN104103382B (en) | 2014-08-06 | 2014-08-06 | A kind of method of lacquering of electromagnetic wire dry insulation paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381958.XA CN104103382B (en) | 2014-08-06 | 2014-08-06 | A kind of method of lacquering of electromagnetic wire dry insulation paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104103382A true CN104103382A (en) | 2014-10-15 |
| CN104103382B CN104103382B (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410381958.XA Expired - Fee Related CN104103382B (en) | 2014-08-06 | 2014-08-06 | A kind of method of lacquering of electromagnetic wire dry insulation paint |
Country Status (1)
| Country | Link |
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| CN (1) | CN104103382B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013966A (en) * | 2019-11-06 | 2020-04-17 | 苏州朗威电子机械股份有限公司 | Painting process method for server cabinet production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108475A (en) * | 1983-11-16 | 1985-06-13 | Toshiba Chem Corp | Insulating paint for coil impregnation |
| JPH0267704A (en) * | 1988-09-02 | 1990-03-07 | Sumitomo Bakelite Co Ltd | Insulated painting process |
| CN101337134A (en) * | 2008-08-07 | 2009-01-07 | 韩富生 | Recovery method and device of enamelling technique tail-gas |
| CN101899258A (en) * | 2010-08-05 | 2010-12-01 | 常熟理工学院 | Method for preparing polyester wire coating enamel |
-
2014
- 2014-08-06 CN CN201410381958.XA patent/CN104103382B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108475A (en) * | 1983-11-16 | 1985-06-13 | Toshiba Chem Corp | Insulating paint for coil impregnation |
| JPH0267704A (en) * | 1988-09-02 | 1990-03-07 | Sumitomo Bakelite Co Ltd | Insulated painting process |
| CN101337134A (en) * | 2008-08-07 | 2009-01-07 | 韩富生 | Recovery method and device of enamelling technique tail-gas |
| CN101899258A (en) * | 2010-08-05 | 2010-12-01 | 常熟理工学院 | Method for preparing polyester wire coating enamel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013966A (en) * | 2019-11-06 | 2020-04-17 | 苏州朗威电子机械股份有限公司 | Painting process method for server cabinet production |
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| Publication number | Publication date |
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| CN104103382B (en) | 2016-03-09 |
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Granted publication date: 20160309 Termination date: 20190806 |
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