CN101162623A - Preparation method for aluminum enamel covered wire - Google Patents
Preparation method for aluminum enamel covered wire Download PDFInfo
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- CN101162623A CN101162623A CN 200710031642 CN200710031642A CN101162623A CN 101162623 A CN101162623 A CN 101162623A CN 200710031642 CN200710031642 CN 200710031642 CN 200710031642 A CN200710031642 A CN 200710031642A CN 101162623 A CN101162623 A CN 101162623A
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Abstract
The invention relates to an aluminum enameled wire and a method for manufacturing the same. The aluminum enameled wire comprises aluminum round conductor which comprises a primer layer, a middle layer and a surface insulation layer, wherein the primer layer is an epoxy resin layer, the middle layer is a high temperature polyester layer, a polyester inferior amine paint layer or a modified polyester resin layer and the surface insulation layer is polyamide-imide paint layer. The aluminum enameled wire is made in the following steps that: 1) an aluminum conductor is arranged on a drawbench to be pulled into aluminum round conductor, 2) the aluminum round conductor is pulled through a sink for cleaning, 3) epoxy resin is coated, 4) high temperature polyester inferior amine paint or modified polyester resin is coated, 5) polyamide-imide paint is coated. The invention is simple and reasonable in structure, low in manufacturing cost, strong in adhesion and high in product yield rate, and has the features of high temperature resistance, coolant resistance, good surface quality and optimal thermal performance.
Description
Technical field
The present invention relates to a kind of aluminium enamel-covered wire, particularly a kind of Aluminium enamelled wire and its preparation method.
Background technology
Science and technology development, the electrical equipment and electrical improvement of insulating material and the raising of insulation technology, also more and more higher to the heat-resisting level requirement of insulating material, the market demand increases swift and violent.Domestic production high heat-stage enamel-cover circle aluminum steel technical merit in process of production strong, the heat of ubiquity tack wash open split, defective such as rough surface, have influence on the quality and the rate of finished products of product, and, in the domestic big enamel insulated aluminium wire manufacturing enterprise, the finished product rate of enamelled round aluminium wire with is lower, only be 89.6～93.6%, enamelled wire DV value, just conductor lines footpath and the product of conductor speed are all below 20.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of simple and reasonable, cost of manufacture is low, tack is strong, finished product rate height, have high temperature resistant, cold-resistant matchmaker, surface quality is good, hot property is good Aluminium enamelled wire and its preparation method, to overcome weak point of the prior art.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of aluminium enamel-covered wire, comprise the aluminium round conductor, its architectural feature is that aluminium round conductor surface is disposed with prime coat, intermediate layer and surface insulation layer, wherein, prime coat is an epoxy resin layer, the intermediate layer is any one in high-temperature polyester layer, polyester-imide enamelled coating or the modified polyester resin layer, and surface insulation layer is the polyamidoimide enamelled coating.
A kind of manufacture method of aluminium enamel-covered wire is characterized in that comprising following steps:
1) aluminium conductor is placed on the wire drawing machine draw greatly, in draw repeatedly stretch after, be drawn into the naked aluminium round conductor of 0.700mm～2.500mm,
2) aluminium round conductor unwrapping wire passes the cleaning of wash water groove, and per minute cleans the aluminium round conductor 10～20 times, and 400～600 ℃ of continuous annealing temperature are cleaned through supercooling again, and cooling water is an ionized water, and the ionized water conductivity is 10～20 μ s/cm, 60～80 ℃ of cooling water temperatures,
3) coat epoxy resin coating, japanning 1～10 road, every japanning is once cured once,
4) coat high-temperature polyester lacquer, polyester-imide lacquer or modified polyester resin lacquer, japanning 3～9 roads, every japanning is once cured once,
5) be coated with the polyamidoimide lacquer, japanning 2～5 roads, every japanning is once cured once,
6) the conductor lines footpath more than in each step and the product of conductor speed, just the value of enamelled wire DV is 22～40, every japanning once, cure once, the solvent evaporation temperature is 280～350 ℃, and the film curing temperature is 390～500 ℃, film thickness is 0.035～0.090mm, apply lubricating oil, the online detection of instrument after testing, finished product take-up promptly get the aluminium enamel-covered wire that 200 grades and above high-temperature polyester or polyester-imide composite polyamide acid imide coat with lacquer.
The conductor lines here directly is meant the diameter before the japanning, because upper base enamelled coating lacquer, intermediate layer lacquer, surface insulation layer lacquer be for carrying out simultaneously, it is consistent that speed and temperature are controlled.
Described step:
1) the wire drawing oil in the drawing process is 100% fine aluminium wire drawing oil, the upper and lower two-stage cone pulley diameter ratio of big drawing machine is 1: 1.22～1: 1.42, the compression ratio of wire-drawing die is 30～38%, line speed is 300～～550m/min, the diameter ratio of the upper and lower two-stage cone pulley of Medium drawing mach ine is 1: 1.14～1: 1.34, the compression ratio of wire-drawing die is 22～30%, and line speed is 300～1300m/min
2) aluminium round conductor unwrapping wire passes the cleaning of wash water groove, and per minute cleans round conductor 12～18 times, and 450～550 ℃ of continuous annealing temperature are cleaned through supercooling again, and cooling water is an ionized water, and the ionized water conductivity is 12～18 μ s/cm, 60～80 ℃ of cooling water temperatures,
3) coat epoxy resin coating, japanning 1～3 road, every japanning is once cured once,
4) coat high-temperature polyester lacquer, polyester-imide lacquer or modified polyester resin lacquer, japanning 5～9 roads, every japanning is once cured once,
5) be coated with the polyamidoimide lacquer, japanning 2～4 roads, every japanning is once cured once,
6) enamelled wire DV value is 25～40, every japanning once, cure once, the solvent evaporation temperature is 280～350 ℃, the film curing temperature is 390～500 ℃, and film thickness is 0.045～0.090mm, applies lubricating oil, through the online detection of infrared detector, the finished product take-up promptly gets the aluminium enamel-covered wire of 200 grades and above high-temperature polyester or polyester-imide composite polyamide acid imide lacquer.
Described epoxy resin coating is the mixture of epoxy resin, and this mixture also comprises auxiliary agent.
The present invention has following characteristics: in the japanning process, adopted a kind of novel paint as priming paint, this paint composition mainly is an epoxy resin, and in epoxy resin, add cyclohexanone, leveling auxiliary agent etc., modulation at last forms the wire enamel with certain viscosity and solids content: in the time of 25 ℃, by detecting 4# priming paint, recording its range of viscosities is 40s～100s; Under 180 ℃ of temperature, behind 2g4# priming paint baking 1h, record its solids content 25～30%.
The modulation of this fresh paint is with traditional comparing, and consequently the solvent composition does not contain toluene, dimethylbenzene etc. in this prime paint preparation, can reduce environmental pollution.The auxiliary agent that adds in the paint modulation, have good tack and screening characteristics aborning,, improved the rate of finished products of enamelled wire greatly than the existing japanning speed of other company is fast more than 40% at present, solved that the paint film tack is strong, the problem of paint film cracking, guaranteed that quality of enamelled wire is stable.
The manufacture method that provides among the present invention is provided, and the finished product rate can reach 97.4%, exceeds 4～7 percentage points than average level, and under the prerequisite of identical device, enamelled wire DV value can keep 28～40 in adopting with background technology.
The present invention is by increasing novel paint, adjust production technology, the change method of lacquering is adjusted oven temperature, develops to reach 200 grades and above high heat-stage aluminium enamel-covered wire, its leading indicator reaches top standard of the same trade, solved problems such as domestic big specification aluminium enamel-covered wire paint film tack is not strong, easy to crack, and have high temperature resistant, cold-resistant matchmaker, advantages such as surface quality is good, and hot property is good.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of aluminium enamel-covered wire in one embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1, a kind of aluminium enamel-covered wire, comprise aluminium round conductor 4, aluminium round conductor surface is disposed with prime coat 3, intermediate layer 2 and surface insulation layer 1, wherein, prime coat is an epoxy resin layer, and the intermediate layer is any one in high-temperature polyester layer, polyester-imide enamelled coating or the modified polyester resin layer, and surface insulation layer is the polyamidoimide enamelled coating.
During making: 1) aluminium conductor is placed on the wire drawing machine draw greatly, in draw repeatedly stretch after, be drawn into the naked aluminium round conductor of 0.700mm～2.500mm, wire drawing oil in the drawing process is 100% fine aluminium wire drawing oil, the upper and lower two-stage cone pulley of big drawing machine diameter ratio is 1: 1.32, the compression ratio of wire-drawing die is 34%, and line speed is 400 ± 50m/min.The diameter ratio of Medium drawing mach ine cone pulley is 1: 1.24, and the compression ratio of wire-drawing die is 26%, and line speed is 600～1300m/min,
2) the round conductor unwrapping wire is passed the wash water groove and clean, per minute cleans round conductor 10～20 times, and 450～550 ℃ of continuous annealing temperature are cleaned through supercooling again, and cooling water is an ionized water, and the ionized water conductivity is 10～20 μ s/cm, 60～80 ℃ of cooling water temperatures,
3) coat epoxy resin coating, japanning 1～2 road, every japanning is once cured once,
4) coat high-temperature polyester lacquer, polyester-imide lacquer or modified polyester resin lacquer, japanning 7～9 roads, every japanning is once cured once,
5) be coated with the polyamidoimide lacquer, japanning 2～4 roads, every japanning is once cured once,
6) enamelled wire DV value is 28～40, every japanning once, cure once, the solvent evaporation temperature is 280～350 ℃, the film curing temperature is 390～500 ℃, and film thickness is 0.056～0.082mm, applies lubricating oil, through the online detection of infrared detector, the finished product take-up promptly gets 200 grades and above high-temperature polyester or polyester-imide composite polyamide acid imide enamelled round aluminium wire with.
Described epoxy resin coating is the mixture of epoxy resin, and this mixture also comprises cyclohexanone and various auxiliary agent, and the range of viscosities of mixture is: 40s～100s, solids content is 25～30%
The 220 grades of enamel insulated aluminium wires of the novel paint production by using preparation and the assay such as the following table of original product main indexes:
220 grades of polyester-imide composite polyamides of line footpath 1.450mm acid imide enamelled round aluminium wire with major technique contrast table
| Interventions Requested | Standard-required | Former check data | Existing check data |
| Pliability and tack stretch and the pole flexing test | 3d, 10 circles do not ftracture | Paint film does not ftracture, does not lose tack | Paint film does not ftracture, does not lose tack |
| Thermal shock | 240 ℃, 3d, 10 circles do not ftracture | Paint film does not ftracture | 250 ℃, 3d, 10 circles do not ftracture |
| Percentage elongation | ≥15％ | 28％ | 28％ |
| Scrape lacquer: minimum scraping force in the average scraping force three times | ≥7.15N ≥5.85N | 10.59N 9.59N | 12.49N 13.49N |
| Puncture voltage (room temperature) | ≥5KV | 9.6、9.6、9.7 | 12.2、10.6、10.4 |
| Film integrity (30m) | Number of defects≤10 | 1 | 0 |
| Remarks: | / | Carry out the IEC standard | Carry out the IEC standard |
Wherein, d represents diameter.
Claims (5)
1. aluminium enamel-covered wire, comprise aluminium round conductor (4), it is characterized in that aluminium round conductor surface is disposed with prime coat (3), intermediate layer (2) and surface insulation layer (1), wherein, prime coat is an epoxy resin layer, the intermediate layer is any one in high-temperature polyester layer, polyester-imide enamelled coating or the modified polyester resin layer, and surface insulation layer is the polyamidoimide enamelled coating.
2. the manufacture method of aluminium enamel-covered wire according to claim 1 is characterized in that comprising following steps:
1) aluminium conductor is placed on the wire drawing machine draw greatly, in draw repeatedly stretch after, be drawn into the naked aluminium round conductor of 0.700mm～2.500mm,
2) aluminium round conductor unwrapping wire passes the cleaning of wash water groove, and per minute cleans the aluminium round conductor 10～20 times, and 400～600 ℃ of continuous annealing temperature are cleaned through supercooling again, and cooling water is an ionized water, and the ionized water conductivity is 10～20 μ s/cm, 60～80 ℃ of cooling water temperatures,
3) coat epoxy resin coating, japanning 1～10 road, every japanning is once cured once,
4) coat high-temperature polyester lacquer, polyester-imide lacquer or modified polyester resin lacquer, japanning 3～9 roads, every japanning is once cured once,
5) be coated with the polyamidoimide lacquer, japanning 2～5 roads, every japanning is once cured once,
6) the conductor lines footpath more than in each step and the product of conductor speed, just the value of enamelled wire DV is 22～40, every japanning once, cure once, the solvent evaporation temperature is 280～350 ℃, and the film curing temperature is 390～500 ℃, film thickness is 0.035～0.090mm, apply lubricating oil, the online detection of instrument after testing, finished product take-up promptly get the aluminium enamel-covered wire that 200 grades and above high-temperature polyester or polyester-imide composite polyamide acid imide coat with lacquer.
3. the manufacture method of aluminium enamel-covered wire according to claim 2 is characterized in that described step:
1) the wire drawing oil in the drawing process is 100% fine aluminium wire drawing oil, the upper and lower two-stage cone pulley diameter ratio of big drawing machine is 1: 1.22～1: 1.42, the compression ratio of wire-drawing die is 30～38%, line speed is 300～550m/min, the diameter ratio of the upper and lower two-stage cone pulley of Medium drawing mach ine is 1: 1.14～1: 1.34, the compression ratio of wire-drawing die is 22～30%, and line speed is 300～1300m/min
2) aluminium round conductor unwrapping wire passes the cleaning of wash water groove, and per minute cleans round conductor 12～18 times, and 450～550 ℃ of continuous annealing temperature are cleaned through supercooling again, and cooling water is an ionized water, and the ionized water conductivity is 12～18 μ s/cm, 60～80 ℃ of cooling water temperatures,
3) coat epoxy resin coating, japanning 1～3 road, every japanning is once cured once,
4) coat high-temperature polyester lacquer, polyester-imide lacquer or modified polyester resin lacquer, japanning 5～9 roads, every japanning is once cured once,
5) be coated with the polyamidoimide lacquer, japanning 2～4 roads, every japanning is once cured once,
6) enamelled wire DV value is 25～40, every japanning once, cure once, the solvent evaporation temperature is 280～350 ℃, the film curing temperature is 390～500 ℃, and film thickness is 0.045～0.090mm, applies lubricating oil, through the online detection of infrared detector, the finished product take-up promptly gets the aluminium enamel-covered wire of 200 grades and above high-temperature polyester or polyester-imide composite polyamide acid imide lacquer.
4. according to the manufacture method of claim 2 or 3 described aluminium enamel-covered wires, it is characterized in that described epoxy resin coating is the mixture of epoxy resin, this mixture also comprises auxiliary agent, the range of viscosities of mixture is: in the time of 25 ℃, 30s～120s, in the time of 180 ℃, solids content is 15～40%.
5. the manufacture method of aluminium enamel-covered wire according to claim 4 is characterized in that described mixture also comprises cyclohexanone, and the range of viscosities of mixture is: in the time of 25 ℃, and 40s～100s, in the time of 180 ℃, solids content is 25～30%
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| CN 200710031642 CN100514506C (en) | 2007-11-23 | 2007-11-23 | Preparation method for aluminum enamel covered wire |
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| CN 200710031642 CN100514506C (en) | 2007-11-23 | 2007-11-23 | Preparation method for aluminum enamel covered wire |
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| CN101162623A true CN101162623A (en) | 2008-04-16 |
| CN100514506C CN100514506C (en) | 2009-07-15 |
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| CN101958158A (en) * | 2010-10-22 | 2011-01-26 | 株洲时代电气绝缘有限责任公司 | Method for preparing corona-resistant enameled wire and product |
| CN101540223B (en) * | 2009-04-29 | 2011-03-16 | 天津精达里亚特种漆包线有限公司 | Method for producing DC variable frequency enameled wire |
| CN102074308A (en) * | 2010-11-16 | 2011-05-25 | 诸暨露笑特种线有限公司 | System and process for producing enamelled aluminium wires |
| CN101325102B (en) * | 2008-08-05 | 2011-11-30 | 席斌 | Technique for manufacturing frequency conversion varnished wire |
| CN103000303A (en) * | 2012-12-04 | 2013-03-27 | 无锡百川化工股份有限公司 | Method for producing self-adhesion compound type enameled aluminium round wire |
| CN103258600A (en) * | 2012-02-16 | 2013-08-21 | 宜春德源欣茂铝业有限公司 | Enameling method of motor 180-stage polyesterimide enameled round aluminum wire |
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| CN104464907A (en) * | 2014-12-25 | 2015-03-25 | 宜春德源欣茂铝业有限公司 | Fluoride-free compressor enameled aluminum wire and preparation method thereof |
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| CN105206355A (en) * | 2015-07-24 | 2015-12-30 | 苏州市新的电工有限公司 | Aluminum-core enameled wire production method and equipment thereof |
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| CN106147301A (en) * | 2016-07-14 | 2016-11-23 | 安徽樵森电气科技股份有限公司 | Insulation heat-resistant enamelled wire coating |
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| CN112735679A (en) * | 2020-12-28 | 2021-04-30 | 松田电工（台山）有限公司 | Preparation method of high-temperature-resistant self-adhesive flat enameled wire |
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- 2007-11-23 CN CN 200710031642 patent/CN100514506C/en active Active
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| CN101325102B (en) * | 2008-08-05 | 2011-11-30 | 席斌 | Technique for manufacturing frequency conversion varnished wire |
| CN101540223B (en) * | 2009-04-29 | 2011-03-16 | 天津精达里亚特种漆包线有限公司 | Method for producing DC variable frequency enameled wire |
| CN101958158B (en) * | 2010-10-22 | 2012-07-04 | 株洲时代电气绝缘有限责任公司 | Method for preparing corona-resistant enameled wire and product |
| CN101958158A (en) * | 2010-10-22 | 2011-01-26 | 株洲时代电气绝缘有限责任公司 | Method for preparing corona-resistant enameled wire and product |
| CN102074308A (en) * | 2010-11-16 | 2011-05-25 | 诸暨露笑特种线有限公司 | System and process for producing enamelled aluminium wires |
| CN102074308B (en) * | 2010-11-16 | 2012-12-19 | 诸暨露笑特种线有限公司 | System and process for producing enamelled aluminium wires |
| CN103258600A (en) * | 2012-02-16 | 2013-08-21 | 宜春德源欣茂铝业有限公司 | Enameling method of motor 180-stage polyesterimide enameled round aluminum wire |
| CN103000303B (en) * | 2012-12-04 | 2015-06-03 | 无锡百川化工股份有限公司 | Method for producing self-adhesion compound type enameled aluminium round wire |
| CN103000303A (en) * | 2012-12-04 | 2013-03-27 | 无锡百川化工股份有限公司 | Method for producing self-adhesion compound type enameled aluminium round wire |
| CN103928195B (en) * | 2013-01-16 | 2017-06-06 | 日立金属株式会社 | The manufacture method and its manufacture device of insulated electric conductor |
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| CN104112541A (en) * | 2013-08-17 | 2014-10-22 | 赣州三进特种漆包线有限公司 | Manufacturing method for enameled aluminum wire used for solar electric vehicle motor |
| CN104112550A (en) * | 2013-08-17 | 2014-10-22 | 赣州三进特种漆包线有限公司 | Manufacturing method for aluminum copper alloy enameled wire |
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| CN105206355A (en) * | 2015-07-24 | 2015-12-30 | 苏州市新的电工有限公司 | Aluminum-core enameled wire production method and equipment thereof |
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| CN106147301A (en) * | 2016-07-14 | 2016-11-23 | 安徽樵森电气科技股份有限公司 | Insulation heat-resistant enamelled wire coating |
| CN106356125A (en) * | 2016-11-07 | 2017-01-25 | 南昌专腾科技有限公司 | Flat double-alloy enameled wire and manufacturing technique thereof |
| CN109273148A (en) * | 2018-09-27 | 2019-01-25 | 韶关市欧姆机电设备有限公司 | A kind of high-strength insulating fire prevention enameled wire and its insulated paint membrane preparation method |
| CN112735679A (en) * | 2020-12-28 | 2021-04-30 | 松田电工（台山）有限公司 | Preparation method of high-temperature-resistant self-adhesive flat enameled wire |
| CN113248983A (en) * | 2021-05-18 | 2021-08-13 | 铜陵兢强电子科技股份有限公司 | Production process of micro enameled aluminum wire |
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Assignee: Galanz (Zhongshan) electrical wire Co., Ltd. Assignor: Guangdong Calandz Group Corp. Contract fulfillment period: 2009.7.20 to 2017.7.20 contract change Contract record no.: 2009440001602 Denomination of invention: Preparation method for aluminum enamel covered wire Granted publication date: 20090715 License type: Exclusive license Record date: 20091015 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.20 TO 2017.7.20; CHANGE OF CONTRACT Name of requester: GALANZ (ZHONGSHAN) ELECTRIC WIRE CO., LTD. Effective date: 20091015 |