CN104637580A - High temperature-resisting aluminum electromagnetic wire and manufacturing method thereof - Google Patents
High temperature-resisting aluminum electromagnetic wire and manufacturing method thereof Download PDFInfo
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- CN104637580A CN104637580A CN201310545789.4A CN201310545789A CN104637580A CN 104637580 A CN104637580 A CN 104637580A CN 201310545789 A CN201310545789 A CN 201310545789A CN 104637580 A CN104637580 A CN 104637580A
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Abstract
The invention relates to a high temperature-resisting aluminum electromagnetic wire, which mainly comprises a conductor and under coating varnish arranged on the surface of the conductor. The high temperature-resisting aluminum electromagnetic wire is characterized in that the surface of the under coating varnish is sequentially provided with an intermediate coat and a top coat, and a layer of lubricant is arranged outside the top coat. When the aluminum electromagnetic wire of the invention is in use, the under coating varnish, the intermediate coat and the top coat are sequentially arranged outside the conductor, a layer of lubricant is applied to the top coat, the varnish plays a good role of insulated adhesion, the intermediate coat and the top coat have a role of coat film insulation, the electrical performance and the heat-resisting performance of the aluminum electromagnetic wire are enhanced, surface lubricity of a finished product is improved as the layer of lubricant is applied, and use demands of a high-speed winding machine can be better met. The heat-resisting grade can reach 220 to 240, 1 or 2 grades is improved compared with the national standard GB/T23312.7-200- temperature resistance grade. Due to the improved manufacturing process, continuous production and manufacturing with stable quality are realized, the production cost is effectively controlled, the product quality is ensured, and the industrial use rate of aluminum conductors can be effectively enhanced.
Description
Technical field:
The present invention relates to the technical field of electromagnetic wire, high temperature resistant aluminium magnet wire specifically a kind of industry, the product for civilian use used and preparation method thereof.
Background technology:
Along with the development that deepens continuously of electromagnetic wire technology, in conjunction with the continuous expansion of industrial products, be that the conductor material of representative is more and more rare with copper.The earth's crust resources reserve of aluminium own is enriched, and is the inexorable trend of industry development with aluminium for copper.
At present, aluminium magnet wire is also widely used in various motor, microwave oven, through testing and verification, also can be used on refrigerator, compressor of air conditioner transformer.But resistivity different between copper aluminium and chemical characteristic, result in the limitation of aluminium conductor materials application scope.Especially aluminium magnet wire, for electric wire or cable, insulate thin, requirement of withstand voltage is high, and machine-shaping aluminium magnet wire on very soft aluminum, its processing technology has higher complexity.Aluminium magnet wire effect in product electrical characteristic and heat-resistant quality of prior art production is simultaneously undesirable, can not meet the needs that industry, the product for civilian use use.
Summary of the invention:
High temperature resistant aluminium magnet wire that the object of the present invention is to provide a kind of improvement and preparation method thereof, it can overcome in prior art, and aluminium magnet wire electric property is not good, heat resistance is lower, processing technology is complicated, the some shortcomings that production cost is high.
To achieve these goals, technical scheme of the present invention is: high temperature resistant aluminium magnet wire, and it mainly comprises conductor and is located at the under-coating varnish of conductive surface, it is characterized in that: the surface of under-coating varnish is provided with intermediate coat and finish paint successively, is provided with one deck lubricating oil outside finish paint.
The preparation method of high temperature resistant aluminium magnet wire, is characterized in that: described preparation method comprises the steps: a, makes conductor, thick aluminium material is put into wire drawing machine and carries out continuous wire drawing process, make that the smooth surface of aluminium material is seamless becomes conductor up to specification; B, use Ultrasonic Cleaning conductive surface, then anneal conductor in annealing furnace or annealing pipe, carries out sofening treatment to conductor, and lattice is restored; C, utilize japanning die to paint to aluminium conductor surface, japanning has three layers, is followed successively by under-coating varnish, intermediate coat and finish paint from inside to outside; D, on enamelling machine, above-mentioned three layers of painted surface to be cured, make three layers of japanning form smooth continuous whole paint film at conductive surface; E, lubricating oil coating are through Special lubricating oil coating device and apply, and improve finished surface lubrification, are more applicable to the instructions for use of high-speed winding machine.F, conductor carry out air blast cooling but by a set of cooling device, cooling device is made up of two high-speed fans and pipe special, one of them high-speed fan blows into tube-cooled conductor by extracting outdoor cold air, hot-air in another high-speed fan discharge line after cooling conductor, being then wound to making on take-up reel tool becomes finished product; After g, inspection, packaging warehouse-in.
During use, aluminium magnet wire of the present invention, under-coating varnish, intermediate coat and finish paint is provided with successively outward at conductor, finish paint additional painting one deck lubricant, priming paint plays the tack that well insulate, and intermediate coat and topcoat play the effect of paint film insulation, improve electric property and the heat resistance of aluminium magnet wire, improve finished surface lubrification after coating one deck lubricating oil, be more applicable to the instructions for use of high-speed winding machine.Coating thermal endurance class can reach 220 grades to 240 grades, and relative and standard GB/T/T23312, temperature resistant grade rises 1 to 2 grade.The manufacture craft simultaneously improved can realize stay-in-grade continuous seepage and make, and effective production control cost ensures product quality, effectively improves aluminium conductor industrial application rate.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of one embodiment of the invention
Fig. 2 is fabrication processing figure of the present invention
Embodiment:
Below in conjunction with drawings and Examples, the invention will be further described.
The mark of each accompanying drawing is expressed as follows: 1 conductor, 2 under-coating varnish, 3 intermediate coats, 4 finish paints, 5 lubricants.
The present invention mainly comprises conductor and is located at the under-coating varnish of conductive surface, and its difference with the prior art is: the surface of under-coating varnish is provided with intermediate coat and finish paint successively, is provided with one deck lubricant outside finish paint.The thickness of under-coating varnish is 0.005-0.015mm, and the thickness of intermediate coat is 0.045-0.085mm, and the thickness of finish paint is 0.015-0.035mm.The outer one deck lubricant of finish paint is No. 01 lubricating oil adopting our company's development, improves surface lubrication, be more applicable to the instructions for use of high-speed winding machine after coating one deck lubricating oil.No. 01 lubricating oil is that research and development centre of our company technical staff researches and develops successful a kind of novel lubricating oil through effort more than a year. it is colourless, tasteless, cheap lubricant effect improves 40% than the original lubricating oil bought, No. 01 lubricant applicant described here has applied for patent in 2010, number of patent application is " 201010132838.8 ", just repeats no more its concrete formula and effect here.Conductor is the scope 0.20mm-4.00mm of aluminium conductor, diameter.
The preparation method of high temperature resistant aluminium magnet wire, its difference with the prior art is: described preparation method comprises the steps: a, makes conductor, thick aluminium blank is put into wire drawing machine and carries out continuous wire drawing process, make that the smooth surface of aluminium material is seamless becomes conductor up to specification; B, use Ultrasonic Cleaning conductive surface, then anneal conductor in annealing furnace or annealing pipe, carries out sofening treatment to conductor, and lattice is restored; C, utilize japanning die to paint to aluminium conductor surface, japanning has three layers, is followed successively by under-coating varnish, intermediate coat and finish paint from inside to outside; D, on enamelling machine, above-mentioned three layers of painted surface to be cured, make three layers of japanning form smooth continuous whole paint film at conductive surface; E, apply one deck lubricating oil through Special lubricating oil coating device again, improve finished surface lubrification, the use being more applicable to high-speed winding machine is wanted.F, conductor carry out air blast cooling but by a set of cooling device, cooling device is made up of two high speed extension sets and pipe special, one of them high-speed fan blows into tube-cooled conductor by extracting outdoor cold air, hot-air in another high-speed fan discharge line after cooling conductor, being then wound to making on take-up reel tool becomes finished product; After g, inspection, packaging warehouse-in.
In a step, thick aluminium blank is 9.50mm rafifinal, after wire drawing machine stretches, makes 1.20-4.50mm aluminium blank, makes the various conductor specifications of 0.20-4.00mm after aluminium blank is stretched again.In b step, adopt pure water in Ultrasonic Cleaning, the circulation velocity of water is 0.1-0.3 cube/minute, and hyperacoustic power reaches 1.5-2.5kw; Adopt tubular annealing stove or electric heating annealing pipe to conductor anneal, conductor lattice is restored, impels lattice ordered arrangement, the specific insulation of the soft state of conductor is made to be not more than 0.027800ohm-mm2/m, the annealing time of anneal is 10-18s, anneals online, and softening temperature is 480-550 DEG C.In step c, the viscosity of japanning reaches 700-1000mPa.s, the thickness of under-coating varnish is 0.005-0.015mm, the thickness of intermediate coat is 0.045-0.085mm, the thickness of finish paint is 0.015-0.035mm, under-coating varnish is the 9127 model priming paint adopting du pont company to produce, the Tongvar 355 that intermediate coat and finish paint adopt Alan Ta Si Tongling company to produce respectively and TongMid 595.In Step d, the time of curing is 2.5-4 minute, and temperature controls at 610-720 DEG C.In step e, what lubricating oil coating adopted is No. 01 lubricating oil that our company develops.
In f step, adopt on-line measuring device to finished product coating surface particle, insulation defect, pin hole quantity in a high voltage state detects, and voltage is set to DC500-1500V, and particle-sensitive degree is set to 5-15.The lear on-line checkingi synthesis system that described on-line measuring device adopts Leah company of the U.S. to manufacture.
The relevant material of the present invention has three key factors, as follows.
First factor is: electromagnetic wire conductor must be accomplished " 0 defect ", and this just proposes harsh requirement to drawing process.Conductor can not there is any obvious defect, as defects such as groove, burr, alices.Meanwhile, for avoiding producing artificial defects such as damaging in in-plant stock handling process, online wire drawing must be realized continuously.Drawing process must strictly control, and the aluminum steel particular manufacturing craft adopting the polycrystalline material of GE company of the quality good U.S. to make, abandons the wolfram steel mould that general aluminium draws industry, ensure that the stability of material shape.Meanwhile, use and draw special lube from the precious aluminium introduced of German moral profit, ensure that the sufficient lubrication of aluminium in drawing process, improve the stability of conductor product quality, reliability.
Second factor is: the tack of aluminium magnet wire conductor is far short of what is expected relative to copper, therefore makes the aluminium magnet wire of high-quality, must be coated with the high adhesion force coating that last layer is special on aluminium conductor.Introduce 9127 series paints that DuPont manufactures, carry out high adhesion force guarantee.
3rd factor is: for realizing resistant to elevated temperatures aluminium magnet wire object, and the 355 and 595 serial insulating varnish that Alan Ta Si Tongling company chosen by insulating material carry out compound japanning, make electromagnetic wire heat-resistance index reach more than 220 DEG C.
Embodiment 1
The present invention mainly comprises the under-coating varnish 2 of leading 1 body He being located at conductive surface, and its difference with the prior art is: the surface of under-coating varnish is provided with intermediate coat 3 and finish paint 4 successively, is provided with one deck lubricant 5 outside finish paint.The thickness of under-coating varnish is 0.005mm, and the thickness of intermediate coat is 0.045mm, and the thickness of finish paint is 0.015mm.
High temperature resistant aluminium magnet wire and preparation method thereof, its difference with the prior art is: described preparation method comprises the steps: a, makes conductor, thick aluminium material is put into wire drawing machine and carries out continuous wire drawing process, make that the smooth surface of aluminium material is seamless becomes conductor up to specification; B, use Ultrasonic Cleaning conductive surface, then anneal conductor in annealing furnace or annealing pipe, carries out sofening treatment to conductor, and lattice is restored; C, utilize japanning die to paint to aluminium conductor surface, japanning has three layers, is followed successively by under-coating varnish, intermediate coat and finish paint from inside to outside; D, on enamelling machine, above-mentioned three layers of painted surface to be cured, make three layers of japanning form smooth continuous whole paint film at conductive surface; E, apply one deck lubricant through Special lubricating oil coating device again.F, conductor carry out air blast cooling but by a set of cooling device, cooling device is made up of two high speed extension sets and pipe special, one of them high-speed fan blows into tube-cooled conductor by extracting outdoor cold air, hot-air in another high-speed fan discharge line after cooling conductor, being then wound to making on take-up reel tool becomes finished product; After g, inspection, packaging warehouse-in.
Above-mentioned said thick aluminium material is the rafifinal of 9.50mm, and pliability is good, adopts pure water in tensile strength >=85Mpa. Ultrasonic Cleaning, and the flow velocity of water is 0.1-0.3 cube/minute, and hyperacoustic power reaches 1.5-2.5kw; Adopt tubular annealing stove to conductor anneal, conductor lattice is restored, impels lattice ordered arrangement, make the specific insulation of the soft state of conductor be not more than 0.027800ohm-mm2/m, the annealing time of anneal is 10s, anneals online, and softening temperature is 480 DEG C.The viscosity of japanning reaches 700-1000mPa.s, the thickness of under-coating varnish is 0.005mm, the thickness of intermediate coat is 0.045mm, the thickness of finish paint is 0.015mm, under-coating varnish is the 9127 model priming paint adopting du pont company to produce, the Tongvar 355 that intermediate coat and finish paint adopt German Alan Ta Si company to produce respectively and TongMid 595.What lubricating oil coating adopted is No. 01 lubricating oil that our company develops.
The time of curing is 2.5 minutes, and temperature controls at 610 DEG C.Adopt the lear on-line checkingi synthesis system of Leah company of U.S. manufacture for finished product coating surface particle, insulation defect, pin hole quantity in a high voltage state detects. and voltage is set to DC500-1500V, and particle-sensitive degree is set to 5-15.
Embodiment 2
The present invention mainly comprises conductor and is located at the under-coating varnish of conductive surface, and its difference with the prior art is: the surface of under-coating varnish is provided with intermediate coat and finish paint successively, is provided with one deck lubricant outside finish paint.The thickness of under-coating varnish is 0.015mm, and the thickness of intermediate coat is 0.085mm, and the thickness of finish paint is 0.035mm.
High temperature resistant aluminium magnet wire and preparation method thereof, its difference with the prior art is: described preparation method comprises the steps: a, makes conductor, thick aluminium material is put into wire drawing machine and carries out continuous wire drawing process, make that the smooth surface of aluminium material is seamless becomes conductor up to specification; B, use Ultrasonic Cleaning conductive surface, then anneal conductor in annealing furnace or annealing pipe, carries out sofening treatment to conductor, and lattice is restored; C, utilize japanning die to paint to aluminium conductor surface, japanning has three layers, is followed successively by under-coating varnish, intermediate coat and finish paint from inside to outside; D, on enamelling machine, above-mentioned three layers of painted surface to be cured, make three layers of japanning form smooth continuous whole paint film at conductive surface; E, apply one deck lubricating oil through Special lubricating oil coating device again.F, conductor carry out air blast cooling but by a set of cooling device, cooling device is made up of two high speed extension sets and pipe special, one of them high-speed fan blows into tube-cooled conductor by extracting outdoor cold air, hot-air in another high-speed fan discharge line after cooling conductor, being then wound to making on take-up reel tool becomes finished product; After g, inspection, packaging warehouse-in.
In a step, thick aluminium blank is 9.50mm rafifinal, after wire drawing machine stretches, makes 1.20-4.50mm aluminium blank, makes the various conductor specifications of 0.20-4.00mm after aluminium blank is stretched again.In b step, adopt pure water in Ultrasonic Cleaning, the flow velocity of water is 0.1-0.3 cube/minute, and hyperacoustic power reaches 1.5-2.5kw; Adopt electric heating annealing pipe to conductor anneal, conductor lattice is restored, impel lattice ordered arrangement, obtain good resistivity simultaneously, ansi standard requires that the fine aluminium specific insulation of soft state is not more than 0.027898ohm-mm2/m, and the specific insulation of the soft state of conductor of the present invention is not more than 0.027800ohm-mm2/m, and the annealing time of anneal is 18s, online annealing, softening temperature is 550 DEG C.The viscosity of japanning reaches 700-1000mPa.s, the thickness of under-coating varnish is 0.015mm, the thickness of intermediate coat is 0.085mm, the thickness of finish paint is 0.035mm, under-coating varnish is the 9127 model priming paint adopting du pont company to produce, the Tongvar 355 that intermediate coat and finish paint adopt German Alan Ta Si company to produce respectively and TongMid 595.The time of curing is 4 minutes, and temperature controls at 610-720 DEG C.Adopt the lear on-line checkingi synthesis system of Leah company of U.S. manufacture for finished product coating surface particle, insulation defect, pin hole quantity in a high voltage state detects.Voltage is set to DC500-1500V, and particle-sensitive degree is set to 5-15.High temperature resistant aluminium magnet wire after making, coating thermal endurance class can reach 220 grades to 240 grades, and relative and standard GB/T/T23312.7-200 level product temperature resistant grade rises 1 to 2 grade.The manufacture craft simultaneously improved can realize stay-in-grade continuous seepage and make, and effective production control cost ensures product quality, effectively improves aluminium conductor industrial application rate.
Claims (10)
1. high temperature resistant aluminium magnet wire, it mainly comprises conductor and is located at the under-coating varnish of conductive surface, it is characterized in that: the surface of under-coating varnish is provided with intermediate coat and finish paint successively, is provided with one deck lubricating oil outside finish paint.
2. high temperature resistant aluminium magnet wire according to claim 1, is characterized in that: the thickness of under-coating varnish is 0.005-0.015mm, and the thickness of intermediate coat is 0.045-0.085mm, and the thickness of finish paint is 0.015-0.035mm.
3. high temperature resistant aluminium magnet wire according to claim 1, is characterized in that: conductor is aluminium conductor, and the scope of diameter is: 0.20-4.00mm.
4. the preparation method of high temperature resistant aluminium magnet wire, is characterized in that: described preparation method comprises the steps: a, makes conductor, thick aluminium material is put into wire drawing machine and carries out continuous wire drawing process, make that the smooth surface of aluminium material is seamless becomes conductor up to specification; B, use Ultrasonic Cleaning conductive surface, then anneal conductor in annealing furnace or annealing pipe, carries out sofening treatment to conductor, and lattice is restored; C, utilize japanning die to paint to aluminium conductor surface, japanning has three layers, is followed successively by under-coating varnish, intermediate coat and finish paint from inside to outside; D, on enamelling machine, above-mentioned three layers of painted surface to be cured, make three layers of japanning form smooth continuous whole paint film at conductive surface; E, apply one deck lubricating oil through Special lubricating oil coating device again.F, conductor carry out air blast cooling but by a set of cooling device, cooling device is made up of two high speed extension sets and pipe special, one of them high-speed fan blows into tube-cooled conductor by extracting outdoor cold air, hot-air in another high-speed fan discharge line after cooling conductor, being then wound to making on take-up reel tool becomes finished product; After g, inspection, packaging warehouse-in.
5. the preparation method of high temperature resistant aluminium magnet wire according to claim 4, it is characterized in that: in a step, thick aluminium blank is 9.50mm rafifinal, after wire drawing machine stretches, make 1.20-4.50mm aluminium blank, after aluminium blank is stretched again, make the aluminium conductor of 0.20-4.00mm.
6. the preparation method of high temperature resistant aluminium magnet wire according to claim 4, is characterized in that: in b step, adopts pure water in Ultrasonic Cleaning, and the flow velocity of water is 0.1-0.3 cube/minute, and hyperacoustic power reaches 1.5-2.5kw; Adopt tubular annealing stove or electric heating annealing pipe to conductor anneal, conductor lattice is restored, impels lattice ordered arrangement, the specific insulation of the soft state of conductor is made to be not more than 0.027800ohm-mm2/m, the annealing time of anneal is 10-18s, anneals online, and softening temperature is 480-550 DEG C.
7. the preparation method of high temperature resistant aluminium magnet wire according to claim 4, it is characterized in that: in step c, the viscosity of japanning reaches 700-1000mPa.s, the thickness of under-coating varnish is 0.005-0.015mm, the thickness of intermediate coat is 0.045-0.085mm, the thickness of finish paint is 0.015-0.035mm, and under-coating varnish is the 9127 model priming paint adopting du pont company to produce, the Tongvar 355 that intermediate coat and finish paint adopt German Alan Ta Si company to produce respectively and TongMid 595.
8. the preparation method of high temperature resistant aluminium magnet wire according to claim 4, is characterized in that: in Step d, and the time of curing is 2.5-4 minute, and temperature controls at 610-720 DEG C.
9. high temperature resistant aluminium magnet wire according to claim 4 and preparation method thereof, is characterized in that: in step e, and lubricating oil coating is No. 01 lubricating oil adopting our company to manufacture.
10. the preparation method of high temperature resistant aluminium magnet wire according to claim 4, it is characterized in that: in f step, adopt on-line measuring device to finished product coating surface particle, insulation defect, pin hole quantity in a high voltage state detects, voltage is set to DC500-1500V, and particle-sensitive degree is set to 5-15.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111341496A (en) * | 2020-03-02 | 2020-06-26 | 上海崇明特种电磁线厂 | Production process of 200-grade polyamideimide composite polyester enameled wire |
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Application publication date: 20150520 |