CN101593582A - The method and the device of the automatic depainting of enamelled wire by thermal state quenching - Google Patents
The method and the device of the automatic depainting of enamelled wire by thermal state quenching Download PDFInfo
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- CN101593582A CN101593582A CNA2009100694420A CN200910069442A CN101593582A CN 101593582 A CN101593582 A CN 101593582A CN A2009100694420 A CNA2009100694420 A CN A2009100694420A CN 200910069442 A CN200910069442 A CN 200910069442A CN 101593582 A CN101593582 A CN 101593582A
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- enamelled wire
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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Abstract
The present invention relates to the method and the device of the automatic depainting of enamelled wire by thermal state quenching.Enamelled wire is at first carried out the oxygen deprivation thermal state disposing, under inert atmosphere or oxygen-lean atmosphere, with the heating rate heating enamelled wire raw material of 7-9 ℃/min, to 480-550 ℃, and constant temperature 5-10 minute, the sex change of enameled wire coat this moment; Enamelled wire after will handling rapidly takes out, and immerses water-bath quenching below 30 ℃; Can adopt prior thermal state treatment fire bars spare, then can as long as guarantee seal.The automatic depainting adaptability of technology of enamelled wire by thermal state quenching is strong, can handle multiple dimensioned mixed and disorderly line body.Owing to be the anoxic low-temperature decomposition, air displacement is few, can reach to clean technological requirement, helps alleviating the secondary pollution to atmospheric environment.
Description
Technical field
The invention belongs to the resource and environment technical field, particularly the method for the automatic depainting of enamelled wire by thermal state quenching and device.
Background technology
Enamelled wire is a kind of important " electrical insulating material ", coats macromolecule insulating varnish according to specific production technology exactly on wires such as copper, aluminium, manganin and is prepared from, and this specific insulating varnish is exactly wire enamel.Because the requirement that arts demand and resource reclaim, enamelled wire need be sloughed the top layer coat of paint, and does not change the plain conductor performance.Common method is utilized the paint stripper soaking and washing at present, thereby reaches the purpose of removing paint film.But it is main component that homemade organic paint stripper adopts arene more, and its toxicity is big, can produce secondary pollution in operating process, very big to human body and surrounding environment harm.Also have a kind of common method for utilizing depainting wire wheel and depainting nylon wheel (taper, cylindricality), be used in the insulating varnish of peelling off on the depainting machine on the enamelled wire, and do not damage the metallicity of enamelled wire.This method has higher requirements to the yardstick of line, and very easily causes metal loss in the stripping lacquer process, reduces metal recovery rate, and can't handle superfine mixed and disorderly line body.
Hot technology is under the situation of anaerobism or anaerobic, makes temperature environment and adds thermal material, and the molecular chain rupture that makes macromolecule or polymer material is micromolecular material.Hot technology has been widely used in the processing of solid waste because of having advantages such as minimizing, innoxious and resource.In recent years, utilize in this technical finesse house refuse and the medical waste and received desirable effect.For enamelled wire, analyzing the paint film of finding enamelled wire is the organic polymer composition, therefore can utilize hot technology that it is handled, and utilizes corresponding hot technical process to make it to produce sex change; Implement fast quench depainting PROCESS FOR TREATMENT at the physical property difference of sex change paint film and enamelled wire again, coat of paint is come off automatically, no any outer mechanical force is disturbed, and keeps former condition behind the enamelled wire depainting fully; Wire non-oxidation and mechanical loss, rate of recovery height, purity height.
Summary of the invention
Adopt the automatic stripping method of enamelled wire by thermal state quenching, keep former condition fully after making the enamelled wire depainting, wire non-oxidation and mechanical loss, rate of recovery height, the purity height satisfies subsequent technique instructions for use and resource and reclaims requirement.
Technical scheme of the present invention is as follows:
As shown in Figure 1:
(1) enamelled wire is at first carried out the oxygen deprivation thermal state disposing, under inert atmosphere or oxygen-lean atmosphere, with the heating rate heating enamelled wire raw material of 7-9 ℃/min, to 480-550 ℃, and constant temperature 5-10 minute, the sex change of enameled wire coat this moment;
(2) rapidly the enamelled wire after (1) processing is taken out, immerse water-bath quenching below 30 ℃;
(3) paint film comes off automatically, and tinsel remains unchanged.
Enameled wire coat is divided into oil-base enamelled copper wire lacquer, acetal wire enamel, epoxy wire enamel, polyurethane wire enamel, polyimides (PI), polyamidoimide lacquer (PAI), polyamides urea wire enamel etc. by the resin kind, and what generally use is acetal wire enamel (being mainly used in the motor transformer), polyurethane wire enamel (colored enamelled wire), polyester wire enamel (PE).
According to enameled wire coat polymer substance characteristic, under anaerobic or oxygen deprivation state, utilize hot technology that the enamelled wire heating is made it to produce sex change.Chemical bond ruptured after paint film was heated, and crackle appears in the surface, and micropore and fragment appear in inside, and the weightless and thickness attenuation of material causes the material embrittlement, and tensile strength and elongation descend; Moreover sex change paint film and linear expansion rate difference wiry are very big, therefore the enamelled wire after will heating is implemented quick water-bath quenching, under big temperature difference shock chilling function, coat of paint can come off in the no separation automatically with wire under the mechanical force interference outside any, reached the automatic depainting purpose of enamelled wire.
In whole enamelled wire by thermal state quenching implementation method, in fact technology is very flexible, can adopt prior thermal state treatment fire bars spare, also can realize with the general industry Muffle furnace, after oxygen-lean atmosphere is reliably manually carried out the nitrogen purging, close fire door rapidly and realize, then can as long as guarantee seal.If do not possess PID controlled condition, manually segmentation is provided with the Muffle furnace preset temperature, makes it evenly slowly intensification, rises to 500 ℃ and be incubated 5 minutes and then can about 1 hour.When carrying out the material quenching, the water-bath of use can recycle behind cold filtration, to save resource.
The present invention also can adopt following thermal state disposing stove:
Figure 2 shows that the schematic diagram of thermal state disposing stove, adopt the thermal state disposing stove; It is characterized in that material is placed on the material disc 3 in the burner hearth 1, closes fire door 2; Make inert gas outlet regulating valve 5 and inert gas entrance adjuster valve 11 successively, purge, after air is replaced in the burner hearth, close inert gas entrance adjuster valve 11 and inert gas outlet regulating valve 5 successively from inert gas entrance 10 feedings; Adjust PID controller 9, temperature, heating rate and constant temperature time are set point eventually to make it; Behind to be heated the finishing, take out the enamelled wire material rapidly, place the water-bath quenching.
The automatic depainting adaptability of technology of enamelled wire by thermal state quenching is strong, can handle multiple dimensioned mixed and disorderly line body.Owing to be the anoxic low-temperature decomposition, air displacement is few, can reach to clean technological requirement, helps alleviating the secondary pollution to atmospheric environment.Utilize the physical property difference of sex change paint film and enamelled wire to implement quick water-bath depainting and handle, coat of paint is come off under no any outer mechanical force interference automatically, wire non-oxidation and mechanical loss can realize that metal high-purity and high-recovery regenerate.The quench water water for shower is recycling after filtering cooling, saves the energy.The effluent of whole system is the paint film residue that comes off of minute quantity.Behind the enamelled wire depainting with depainting before effect comparison, wire keeps former condition fully, non-oxidation and mechanical loss, rate of recovery height, the purity height satisfies subsequent technique instructions for use and resource and reclaims requirement.Adopt method of the present invention, the depainting rate reaches more than 99%.
Description of drawings
The automatic depainting processing technological flow of Fig. 1 enamelled wire by thermal state quenching figure;
Fig. 2 thermal state disposing stove schematic diagram.
The 1-burner hearth; The 2-fire door; The 3-material disc; The outlet of 4-inert gas; 5-inert gas outlet regulating valve; The 6-exotic material; The 7-heat-insulation layer; The 8-body of heater adds thermal control; The 9-PID auto-controller; The 10-inert gas entrance; 11-inert gas entrance adjuster valve; The 12-temperature point.
Embodiment
Embodiment 1:
(1) the acetal enamel covered wire is at first carried out thermal state disposing, under inert atmosphere, with the heating rate of 7 ℃/min heating enamelled wire raw material, to 480 ℃, and constant temperature 5 minutes;
(2) rapidly the enamelled wire after (1) processing is taken out, immerse 20 ℃ water-bath, make it quenching;
(3) paint film comes off automatically, and metal keeps former condition constant.The depainting rate reaches 99.9%.
Embodiment 2:
(1) multiple mixed and disorderly enamelled wire is carried out thermal state disposing, under inert atmosphere, with the heating rate of 8 ℃/min heating enamelled wire raw material, to 500 ℃, and constant temperature 5 minutes;
(2) rapidly the enamelled wire after (1) processing is taken out, immerse 23 ℃ water-bath, make it quenching;
(3) paint film comes off automatically, and metal keeps former condition constant.The depainting rate reaches 99.9%.
Embodiment 3:
(1) polyurethane enamelled copper wire is at first carried out thermal state disposing, under inert atmosphere, with the heating rate of 9 ℃/min heating enamelled wire raw material, to 550 ℃, and constant temperature 5 minutes;
(2) rapidly the enamelled wire after (1) processing is taken out, immerse water-bath below 30 ℃, make it quenching;
(3) paint film comes off automatically, and metal keeps former condition constant.The depainting rate reaches 99.9%.
Figure 2 shows that the schematic diagram of thermal state disposing stove, the stove inwall is an exotic material 6, and outer wall is a heat-insulation layer 7.Material is placed on the material disc 3 in the burner hearth 1, closes fire door 2.Open inert gas outlet regulating valve 5 and inert gas entrance adjuster valve 11 successively, feeding nitrogen (perhaps other inert gas) from inert gas entrance 10 purges, sweep gas is discharged through inert gas outlet 4, after air is replaced in the burner hearth, close inert gas entrance adjuster valve 11 and inert gas outlet regulating valve 5 successively.Adjust PID controller 9, make its eventually temperature, heating rate and constant temperature time be set point, begin to start body of heater then and add thermal control 8 and heat, fire box temperature is recorded by temperature point 12.Behind to be heated the finishing, take out the enamelled wire material rapidly, place 30 ℃ of water-bath quenchings.Paint film comes off automatically, metal keep former pattern and character constant.
In whole enamelled wire by thermal state quenching implementation method, in fact technology is very flexible, if do not possess thermal state disposing fire bars spare shown in Figure 2, also can realize with the general industry Muffle furnace, after oxygen-lean atmosphere is reliably manually carried out the nitrogen purging, close fire door rapidly and realize, then can as long as guarantee seal.If do not possess PID controlled condition, manually segmentation is provided with the Muffle furnace preset temperature, makes it evenly slowly to heat up.When carrying out the material quenching, the water-bath of use can recycle behind cold filtration, to save resource.
The method and the device of the automatic depainting of enamelled wire by thermal state quenching that the present invention discloses and discloses.Although technology of the present invention is described by preferred embodiment, but those skilled in the art obviously can change the techniques described herein in not breaking away from content of the present invention, spirit and scope, more particularly, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (2)
1. automatic stripping method of enamelled wire by thermal state quenching is characterized in that:
(1) enamelled wire is at first carried out the oxygen deprivation thermal state disposing, under inert atmosphere or oxygen-lean atmosphere, with the heating rate heating enamelled wire raw material of 7-9 ℃/min, to 480-550 ℃, and constant temperature 5-10 minute;
(2) rapidly the enamelled wire after (1) processing is taken out, immerse water-bath quenching below 30 ℃;
(3) paint film comes off automatically, and tinsel remains unchanged.
2. a device of realizing the automatic stripping method of enamelled wire by thermal state quenching of claim 1 adopts the thermal state disposing stove; It is characterized in that material is placed on the interior material disc (3) of burner hearth (1), closes fire door (2); Make inert gas outlet regulating valve (5) and inert gas entrance adjuster valve (11) successively, purge from inert gas entrance (10) feeding, after air is replaced in the burner hearth, close inert gas entrance adjuster valve (11) and inert gas outlet regulating valve (5) successively; Adjust PID controller (9), temperature, heating rate and constant temperature time are set point eventually to make it; Behind to be heated the finishing, take out the enamelled wire material rapidly, place the water-bath quenching.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100694420A CN101593582A (en) | 2009-06-26 | 2009-06-26 | The method and the device of the automatic depainting of enamelled wire by thermal state quenching |
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| CNA2009100694420A CN101593582A (en) | 2009-06-26 | 2009-06-26 | The method and the device of the automatic depainting of enamelled wire by thermal state quenching |
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| CN101593582A true CN101593582A (en) | 2009-12-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300342A (en) * | 2014-09-12 | 2015-01-21 | 东莞市邦特表面处理材料有限公司 | Method and device for improving enameled wire insulated paint film removing efficiency |
| CN106251991A (en) * | 2016-08-24 | 2016-12-21 | 湖南顶立科技有限公司 | A kind of continuous way enamel-covered wire stripping method and system |
| CN109332289A (en) * | 2018-10-29 | 2019-02-15 | 广东新昇电业科技股份有限公司 | A kind of metal wire automatic painting stripping device and its stripping method |
| CN109559859A (en) * | 2017-09-26 | 2019-04-02 | 大亚电线电缆股份有限公司 | From the method for enameled wire recycling metallic conductor |
| CN111816389A (en) * | 2020-07-06 | 2020-10-23 | 安徽绿能技术研究院有限公司 | Anaerobic pyrolysis method for enameled wire |
| CN114179253A (en) * | 2021-11-17 | 2022-03-15 | 金光勇 | Regeneration process of paint and electroplating waste plastic |
-
2009
- 2009-06-26 CN CNA2009100694420A patent/CN101593582A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300342A (en) * | 2014-09-12 | 2015-01-21 | 东莞市邦特表面处理材料有限公司 | Method and device for improving enameled wire insulated paint film removing efficiency |
| CN106251991A (en) * | 2016-08-24 | 2016-12-21 | 湖南顶立科技有限公司 | A kind of continuous way enamel-covered wire stripping method and system |
| CN109559859A (en) * | 2017-09-26 | 2019-04-02 | 大亚电线电缆股份有限公司 | From the method for enameled wire recycling metallic conductor |
| CN109559859B (en) * | 2017-09-26 | 2020-07-21 | 大亚电线电缆股份有限公司 | Method for recovering metal conductor from enameled wire |
| CN109332289A (en) * | 2018-10-29 | 2019-02-15 | 广东新昇电业科技股份有限公司 | A kind of metal wire automatic painting stripping device and its stripping method |
| CN111816389A (en) * | 2020-07-06 | 2020-10-23 | 安徽绿能技术研究院有限公司 | Anaerobic pyrolysis method for enameled wire |
| CN114179253A (en) * | 2021-11-17 | 2022-03-15 | 金光勇 | Regeneration process of paint and electroplating waste plastic |
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Open date: 20091202 |