CN104103382B - A kind of method of lacquering of electromagnetic wire dry insulation paint - Google Patents
A kind of method of lacquering of electromagnetic wire dry insulation paint Download PDFInfo
- Publication number
- CN104103382B CN104103382B CN201410381958.XA CN201410381958A CN104103382B CN 104103382 B CN104103382 B CN 104103382B CN 201410381958 A CN201410381958 A CN 201410381958A CN 104103382 B CN104103382 B CN 104103382B
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- epoxy colloid
- solvent
- electromagnetic wire
- thick epoxy
- phenol intermediate
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Abstract
The invention discloses a kind of enamelling process of electromagnetic wire dry insulation paint, 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; Adopt twice japanning, oven dry, thick epoxy colloid forms paint film on bare copper flat wire, and after drying, film thickness is 0.1; Bake out temperature is 350 DEG C, completes enamelling process.Present invention saves a large amount of electric energy, raw material, production time, production cost reduces; Without the need to catalysis, improve efficiency; Good insulation preformance.
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 about 60% acetone, alcohol equal solvent, insulating varnish is made to be in rheum body state, be convenient to smear mopping, then through catalyst furnace, drying oven high-temperature catalytic, cure, intermediate and solvent reaction form the fine and close paint film that insulate and are attached on electromagnetic wire.Enamelling process needs through catalyst furnace, drying oven high-temperature catalytic, cures, at this moment insulating varnish phenol intermediate only with a small amount of solvent reaction, excess of solvent and intermediate at high temperature volatilize, and form gas and discharge, cause environmental pollution.This is primary pollution source in electromagnetic wire production process.In addition because insulating varnish is rheum body state, bare copper flat wire can only be formed one deck paint film of book book, after catalysis is dried, paint film is book more, only has 0.01mm, reach dielectric strength, must repeatedly paint, catalysis, oven dry, often through 7 ~ 9 japannings, catalysis, drying course, reach the film thickness of 0.1mm, reach safe insulation intensity.Comparatively greatly, production cost remains high for electric energy, raw material, production time waste.
Summary of the invention
In order to overcome prior art Problems existing, 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, saves a large amount of electric energy, raw material, production time, and production cost reduces; Without the need to 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) first time japanning, oven 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) second time japanning, oven 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 to paint, and because dry insulation is the epoxy colloid of thickness, the thickness that bare copper flat wire is formed paint film is thicker, can reach 0.05mm after oven dry, so only need repeat japanning, oven dry twice, just can reach technical standard.Dry insulation paint in advance catalysis in addition, as long as japanning when therefore producing, to dry, without the need to catalysis, saves timeliness.
The invention has the beneficial effects as follows: enamelling process only needs just to reach technical requirement twice, without the need to repeating 7 ~ 9 times as former technique, save a large amount of electric energy, raw material, production time, production cost reduces; Without the need to catalysis, reduce technology difficulty and complexity, improve efficiency; Dry insulation paint is unified catalysis in advance, and qualified product just can enter next procedure, avoid the hidden danger that in enamel-cover production process, catalysis is insufficient, 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) first time japanning, oven 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) second time japanning, oven 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.
Due to the epoxy colloid that dry insulation is thickness, the thickness that bare copper flat wire is formed paint film is thicker, can reach 0.05mm after first drying, so only need repeat japanning, oven dry twice, the thickness forming paint film reaches 0.1mm.Just can reach technical standard, save a large amount of electric energy, raw material, production time, production cost reduces.Dry insulation paint in advance catalysis in addition, as long as japanning when therefore producing, to dry, without the need to catalysis, reduces technology difficulty and complexity, improves efficiency.Dry insulation paint is unified catalysis in advance, and qualified product just can enter next procedure, and avoid the hidden danger that in enamel-cover production process, catalysis is insufficient, insulation property get a promotion.
Claims (3)
1. a method of lacquering 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) first time japanning, oven 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) second time japanning, oven 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 method for lacquering 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 method for lacquering 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 CN104103382A (en) | 2014-10-15 |
| CN104103382B true CN104103382B (en) | 2016-03-09 |
Family
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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) |
Families Citing this family (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 |
Family Cites Families (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 |
| CN101337134B (en) * | 2008-08-07 | 2012-11-14 | 韩富生 | Recovery method and device of enamelling technique tail-gas |
| CN101899258B (en) * | 2010-08-05 | 2013-05-15 | 常熟理工学院 | Method for preparing polyester wire coating enamel |
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2014
- 2014-08-06 CN CN201410381958.XA patent/CN104103382B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104103382A (en) | 2014-10-15 |
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Granted publication date: 20160309 Termination date: 20190806 |