CN102558940A - Method for removing paint from enameled wire and paint remover - Google Patents
Method for removing paint from enameled wire and paint remover Download PDFInfo
- Publication number
- CN102558940A CN102558940A CN2011104610135A CN201110461013A CN102558940A CN 102558940 A CN102558940 A CN 102558940A CN 2011104610135 A CN2011104610135 A CN 2011104610135A CN 201110461013 A CN201110461013 A CN 201110461013A CN 102558940 A CN102558940 A CN 102558940A
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- Prior art keywords
- enameled wire
- depainting
- paint
- enameled
- paint remover
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Abstract
The invention belongs to a paint removing technology and relates to a method for removing paint from an enameled wire and a paint remover. The method comprises the following steps: weighing sodium hydroxide and potassium hydroxide by using a scale or an electronic scale, mixing, pouring the mixture into a nickel crucible and heating, so that the mixture is melted; soaking one end, needing paint removal, of the enameled wire into the paint remover, removing paint, and taking out the enameled wire after the paint-removing reaction stops; soaking one paint-removed end of the enameled wire into clear water, washing for not less than 15 seconds, neutralizing the residual alkaline liquid by using a glacial acetic acid solution and performing subsequent cleaning; and after cleaning, wiping, detecting and storing in the drying environment. The invention is simple in operation, low in cost, can remove paint from polyimide copper enameled wires, polyimide nickel enameled wires, polyester copper enameled wires and polyester nickel enameled wires in a wide temperature range, does not damage the metal materials of the enameled wires, and is very applicable to small-diameter enameled wires which cannot be depainted by a mechanical grinding method.
Description
Technical field
The invention belongs to the depainting technology, relate to a kind of stripping method and paint remover of enameled wire.
Background technology
At present, mainly adopt three major types methods such as machinery, laser, chemistry to carry out depainting for polyimide, polyester the end of a thread depainting copper, nickel matter enameled wire in the industry:
1. mechanical process:
To the enameled wire in collinear footpath (mainly being copper wire, nickel wire) not, the workman takes manual blade to scrape with the method for fine sandpaper mill to carry out depainting.This method requires very harsh to workman's feel, proficiency, and has two drawbacks that can't overcome: the enamelled coating stripping not thoroughly (causing rosin joint), damage wire (influence of the line more little damage in footpath is also just big more) easily.
2. chemical method:
This method is because of the difference of filling a prescription, and is different to different types of enameled wire paint removing effect, and different to the extent of corrosion of operating environment, material, with low cost, working service is simple.
3. laser paint stripping method
Utilize the laser beam of specific wavelength can be by the characteristic of enamelled coating efficient absorption; Enamelled coating to enameled wire surface heats, and makes enamelled coating moment reach very high temperature, thus gasification, volatilization; For preventing oxidation wiry, whole process need carries out in protective atmosphere.The laser paint stripping method can both well be removed various enamelled coatings, and versatility is stronger, but the laser machine costs an arm and a leg (surpassing 200,000) use operation, maintenance complicacy.
Summary of the invention
The objective of the invention is: a kind of depainting quality that can improve enameled wire is provided, avoids damaging metal base, improve the stripping method of product reliability.
In addition, the present invention also is provided for the paint remover of depainting.
Technical scheme of the present invention is: a kind of stripping method of enameled wire, it comprises the steps:
Step 1: the configuration of paint remover
At first take by weighing the sodium hydroxide and the Pottasium Hydroxide mixing of calculated amount, pour in the nickel system crucible, and intensification makes the mixture fusion with balance or electronic scale;
By following quality than weighing sodium hydroxide and Pottasium Hydroxide:
NaOH：?15～20％
KOH: surplus
Mix the post-heating fusion and process paint remover;
Step 2: depainting
Need an end of depainting to be immersed in the paint remover in enameled wire, carry out depainting, treat that the depainting reaction stops after, take out enameled wire;
Step 3: clean
3.1 once clean
Clean in the end immersion clear water with the enameled wire depainting and be not less than 15 seconds;
3.2 neutralization
400ml clear water, 50～100ml glacial acetic acid are mixed with glacial acetic acid solution, rock in the end immersion glacial acetic acid solution with the enameled wire depainting and soaked 10～20 seconds, carry out the alkalescence neutralization;
3.3 secondary cleaning
One end of enameled wire depainting is carried out the clear water cleaning of some roads, and the time that per pass cleans is not less than 10 seconds;
Step 4: dry preservation.
In the step 2, the depainting reaction times continues less than 60S.
In the step 4, when the enameled wire behind the depainting is dried, dip in absolute ethyl alcohol with alcohol swab or paper handkerchief enameled wire is carried out wiping, every enameled wire wiping is no less than 2 times or directly dries up with blower fan cold wind.
Should be kept in the moisture eliminator behind the enameled wire depainting.
A kind of enamel-cover agent, it is the mixture of Pottasium Hydroxide and sodium hydroxide, specifically prescription and processing parameter are following:
NaOH:15～20% (mass ratio),
KOH: surplus (mass ratio).
Its when preparation is the mixture of Pottasium Hydroxide for preparing and sodium hydroxide to be heated fusion forms after 270 ℃ ± 30 ℃.
Technique effect of the present invention is: the present invention is novel, environmental protection depainting process method; Simple to operate, with low cost, can be in very wide temperature range;, nickel matter enameled wire copper to polyimide, polyester carry out depainting; Can not damage the metal material of enameled wire, not influence tissue, the mechanical property of copper wire, nickel wire, be highly suitable for to adopt the little line footpath enameled wire of mechanical grinding method depainting.
Embodiment
Through specific embodiment the present invention is done detailed explanation below:
Stripping method of the present invention utilizes the basic paint remover of molten state that the surperficial enamelled coating of enameled wire is carried out cracking, reaches the depainting purpose.
The paint remover that the present invention adopted is the mixture of Pottasium Hydroxide and sodium hydroxide, and specifically prescription and processing parameter are following
NaOH (sodium hydroxide): 15～20% (mass ratioes),
KOH (Pottasium Hydroxide): surplus (mass ratio)
Temperature: 270 ℃ ± 30 ℃
Time: under 300 ℃ of conditions less than 1 minute
During preparation: the sodium hydroxide that at first takes by weighing calculated amount with balance or electronic scale; In the nickel system of pouring into the crucible; Secondly; Take by weighing the Pottasium Hydroxide of surplus and part Pottasium Hydroxide is added (can't once add, each add-on is advisable to be no more than 90% of crucible capacity) in the crucible, heating up makes mixture fusion (several times remaining Pottasium Hydroxide being added).
During preparation, this prescription is not high to temperature requirement, as long as present good molten state; Forbid to get into water, oil in the operating process, cause quick-fried spattering easily; Entire operation all should be carried out in the ventilation place; Should wash fully behind the depainting, prevent that alkali lye is residual.
This paint remover has fusing point low (140 ℃); The use temperature wide ranges, paint stripping rate is fast, and the depainting kind is many; Particularly copper to polyimide, polyester, nickel matter enameled wire has preferable paint removing effect, and metal filaments such as metal such as copper wire, nickel wire is not had corrosion basically.
The detailed step of stripping method of the present invention is provided below:
Step 1: the configuration of paint remover
At first take by weighing the sodium hydroxide and the Pottasium Hydroxide mixing of calculated amount, pour in the nickel system crucible, and intensification makes the mixture fusion with balance or electronic scale;
Step 2: depainting
On the depainting frock, need an end of depainting to be immersed in the paint remover in enameled wire the coil stationary of need depainting, behind the certain hour, enamelled coating begins reaction and comes off (have bubble to emerge in the paint remover, continue usually less than 60S), after question response stops, and the taking-up enameled wire;
Step 3: clean
3.1 once clean
Get the 1# beaker and fill it up with clear water (temperature: 60 ± 30 ℃), an end of enameled wire depainting is all immersed to rock in the clear water to clean be not less than 15 seconds;
3.2 neutralization
Get the 2# beaker and add 400ml clear water, 50～100ml glacial acetic acid, stir, an end of enameled wire depainting is all immersed to rock in the glacial acetic acid solution soaked 10～20 seconds, to improve the cleaning performance of alkali lye, convenient follow-up cleaning;
3.3 secondary cleaning
Get 3#, the 4# beaker is filled it up with clear water respectively, and an end of enameled wire depainting is cleaned in two beakers successively, the time that per pass cleans is not less than 10 seconds;
Step 4: dry preservation
Dip in absolute ethyl alcohol with alcohol swab or paper handkerchief enameled wire is carried out wiping, every enameled wire wiping is no less than 2 times, and alcohol swab needs often to change, and this operation can dry up replacement with blower fan cold wind;
Visual under fluorescent light (can by 5 times of reading lenses) inspection, the wire behind the depainting should present the normal color and luster of metal, and the surface should be smooth, bright, defectives such as the oxidation stain that do not have, paint film are residual, physical abuse;
Do not weld immediately behind the enameled wire depainting, should be kept in the moisture eliminator, can not be exposed in the environment of high temperature, high humidity.
In the real work, stripping method of the present invention carries out depainting to the coil of transducer series product, has improved the depainting quality greatly, has avoided damage risk wiry, has improved the welding quality behind the depainting, increases substantially reliability of products.
Claims (6)
1. the stripping method of an enameled wire is characterized in that, comprises the steps:
Step 1: the configuration of paint remover
By following quality than weighing sodium hydroxide and Pottasium Hydroxide:
NaOH：?15～20％
KOH: surplus
Mix the post-heating fusion and process paint remover;
Step 2: depainting
Need an end of depainting to be immersed in the paint remover in enameled wire, carry out depainting, treat that the depainting reaction stops after, take out enameled wire;
Step 3: clean
3.1 once clean
Clean in the end immersion clear water with the enameled wire depainting and be not less than 15 seconds;
3.2 neutralization
400ml clear water, 50～100ml glacial acetic acid are mixed with glacial acetic acid solution, rock in the end immersion glacial acetic acid solution with the enameled wire depainting and soaked 10～20 seconds, carry out the alkalescence neutralization;
3.3 secondary cleaning
One end of enameled wire depainting is carried out the clear water cleaning of some roads, and the time that per pass cleans is not less than 10 seconds;
Step 4: dry preservation.
2. the stripping method of enameled wire according to claim 1 is characterized in that: in the step 2, the depainting reaction times continues less than 60S.
3. the stripping method of enameled wire according to claim 1 and 2; It is characterized in that: in the step 4; When the enameled wire behind the depainting is dried, dip in absolute ethyl alcohol with alcohol swab or paper handkerchief enameled wire is carried out wiping, every enameled wire wiping is no less than 2 times or directly dries up with blower fan cold wind.
4. the stripping method of enameled wire according to claim 3 is characterized in that: should be kept in the moisture eliminator behind the enameled wire depainting.
5. an enamel-cover agent is characterized in that, is the mixture of Pottasium Hydroxide and sodium hydroxide, and specifically prescription and processing parameter are following:
NaOH:15～20% (mass ratio),
KOH: surplus (mass ratio).
6. paint remover according to claim 5 is characterized in that, its when preparation is the mixture of Pottasium Hydroxide for preparing and sodium hydroxide to be heated fusion forms after 270 ℃ ± 30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104610135A CN102558940A (en) | 2011-12-29 | 2011-12-29 | Method for removing paint from enameled wire and paint remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104610135A CN102558940A (en) | 2011-12-29 | 2011-12-29 | Method for removing paint from enameled wire and paint remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102558940A true CN102558940A (en) | 2012-07-11 |
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| CN2011104610135A Pending CN102558940A (en) | 2011-12-29 | 2011-12-29 | Method for removing paint from enameled wire and paint remover |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956635A (en) * | 2014-04-21 | 2014-07-30 | 昆山达功电子有限公司 | Depainting device of enameled wire connection end |
| CN104312257A (en) * | 2014-10-16 | 2015-01-28 | 陕西群力电工有限责任公司 | Enameled wire polyimide insulating layer nondestructive depainting powder and depainting method |
| CN105099104A (en) * | 2015-08-26 | 2015-11-25 | 谭辉 | Automatic paint removing machine |
| CN105566995A (en) * | 2014-10-29 | 2016-05-11 | 宁波金田铜业(集团)股份有限公司 | Enameled wire paint remover as well as preparation method and use method thereof |
| CN105670375A (en) * | 2016-03-22 | 2016-06-15 | 浙江大学 | Polyester enamelled wire enamel removing process and device |
| CN106208570A (en) * | 2016-08-30 | 2016-12-07 | 深圳市慈源智能设备有限公司 | Automatic painting stripping machine |
| CN107987603A (en) * | 2017-10-31 | 2018-05-04 | 宁波金田铜业(集团)股份有限公司 | A kind of useless electromagnetic wire paint removing process and device |
| CN108296215A (en) * | 2018-03-06 | 2018-07-20 | 中核(天津)科技发展有限公司 | A kind of stripping method of spraying hanging tool |
| CN110157233A (en) * | 2019-04-18 | 2019-08-23 | 贵州航天林泉电机有限公司 | A kind of polyimide enameled wire stripping method |
| CN111029887A (en) * | 2019-12-19 | 2020-04-17 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN113533114A (en) * | 2021-07-16 | 2021-10-22 | 北京工业大学 | Enameled wire pyrolysis method based on pyrolysis principle |
| CN114179458A (en) * | 2021-11-30 | 2022-03-15 | 河南墨道石墨烯科技有限公司 | Graphene-based heating cloth for far infrared underwear, and preparation method and application thereof |
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| JPH06107983A (en) * | 1992-09-25 | 1994-04-19 | Nissan Motor Co Ltd | Removal of coating film |
| US20060234890A1 (en) * | 2005-04-15 | 2006-10-19 | Ecolab Inc. | Stripping floor finishes using composition that thickens following dilution with water |
| CN101047061A (en) * | 2006-03-28 | 2007-10-03 | 贵州航天电器股份有限公司 | Enamel removing method for enamel-covered wire on coil lead position |
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Patent Citations (4)
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| JPH0625570A (en) * | 1992-07-08 | 1994-02-01 | Mitsubishi Petrochem Co Ltd | Method for treating coated molded article of plastic and method for its regeneration |
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| US20060234890A1 (en) * | 2005-04-15 | 2006-10-19 | Ecolab Inc. | Stripping floor finishes using composition that thickens following dilution with water |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956635A (en) * | 2014-04-21 | 2014-07-30 | 昆山达功电子有限公司 | Depainting device of enameled wire connection end |
| CN104312257A (en) * | 2014-10-16 | 2015-01-28 | 陕西群力电工有限责任公司 | Enameled wire polyimide insulating layer nondestructive depainting powder and depainting method |
| CN104312257B (en) * | 2014-10-16 | 2016-08-31 | 陕西群力电工有限责任公司 | A kind of enamel-covered wire polyimide insulative layer lossless depainting powder and stripping method |
| CN105566995B (en) * | 2014-10-29 | 2019-04-26 | 宁波金田铜业(集团)股份有限公司 | A kind of enameled wire varnish remover and preparation method thereof and application method |
| CN105566995A (en) * | 2014-10-29 | 2016-05-11 | 宁波金田铜业(集团)股份有限公司 | Enameled wire paint remover as well as preparation method and use method thereof |
| CN105099104A (en) * | 2015-08-26 | 2015-11-25 | 谭辉 | Automatic paint removing machine |
| CN105670375A (en) * | 2016-03-22 | 2016-06-15 | 浙江大学 | Polyester enamelled wire enamel removing process and device |
| CN105670375B (en) * | 2016-03-22 | 2018-09-11 | 浙江大学 | A kind of polyester enamelled wire paint removing process and device |
| CN106208570A (en) * | 2016-08-30 | 2016-12-07 | 深圳市慈源智能设备有限公司 | Automatic painting stripping machine |
| CN107987603A (en) * | 2017-10-31 | 2018-05-04 | 宁波金田铜业(集团)股份有限公司 | A kind of useless electromagnetic wire paint removing process and device |
| CN108296215A (en) * | 2018-03-06 | 2018-07-20 | 中核(天津)科技发展有限公司 | A kind of stripping method of spraying hanging tool |
| CN110157233A (en) * | 2019-04-18 | 2019-08-23 | 贵州航天林泉电机有限公司 | A kind of polyimide enameled wire stripping method |
| CN111029887A (en) * | 2019-12-19 | 2020-04-17 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN111029887B (en) * | 2019-12-19 | 2021-12-07 | 北京航天控制仪器研究所 | Device and method for stripping polyimide copper-clad wire coating layer |
| CN113533114A (en) * | 2021-07-16 | 2021-10-22 | 北京工业大学 | Enameled wire pyrolysis method based on pyrolysis principle |
| CN113533114B (en) * | 2021-07-16 | 2023-12-08 | 北京工业大学 | Enameled wire pyrolysis method based on pyrolysis principle |
| CN114179458A (en) * | 2021-11-30 | 2022-03-15 | 河南墨道石墨烯科技有限公司 | Graphene-based heating cloth for far infrared underwear, and preparation method and application thereof |
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Application publication date: 20120711 |