CN100394515C - Frequency changing electromagnetic wire and manufacturing method thereof - Google Patents
Frequency changing electromagnetic wire and manufacturing method thereof Download PDFInfo
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- CN100394515C CN100394515C CNB2004100180439A CN200410018043A CN100394515C CN 100394515 C CN100394515 C CN 100394515C CN B2004100180439 A CNB2004100180439 A CN B2004100180439A CN 200410018043 A CN200410018043 A CN 200410018043A CN 100394515 C CN100394515 C CN 100394515C
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Abstract
The present invention relates to a frequency conversion electromagnetic wire, which is characterized by thatthree layers of paint, bottom paint, middle paint and surface paint, are orderly arranged on the surface of a copper wire; a layer of lubricant is arranged outside the surface paint. The main insulation of the frequency conversion electromagnetic wire utilizes high and new technology namely nanometer technology to distribute metal oxide powder among molecules of a polymer. After a solvent is evaporated and dried, resin is fixedly embedded among the molecules of the polymer after finishing cross linking and solidification. The present invention simultaneously plays a role in the action of a strengthening agent and shielding of an organic polymer, the main insulation of the frequency conversion electromagnetic wire does not generate partial ionization under high pressure of pulses, the pulse resistance capability of the frequency conversion electromagnetic wire is enhance; thereby, the service life of a frequency conversion motor is prolonged, and the safety and the reliability of the frequency conversion motor are enhanced. Meanwhile, the production technology of the present invention is simple, the capabilities of pulse resistance electrical aging and the coil thermal aging of the frequency conversion electromagnetic wire are enhanced, and the production cost is greatly reduced.
Description
Technical field:
The present invention relates to the technical field of insulated wire and production method thereof, specifically a kind of variable-frequency electromagnetic line and production method thereof.
Background technology:
At present variable-frequency motor has broad application prospects in fields such as metallurgy, mine, light industry, electric power, urban transportation, military projects, and progressively replaces mechanical speed change and dc speed-regulating motor, by domestic extensive attention and be rapidly developed in recent years.Variable-frequency motor is realized speed change by changing frequency, and under high frequency voltage impacted, the corona phenomenon that local discharge and space charge gather easily took place in the insulation of common electric machine electromagnetic wire, has quickened ageing of insulation, shortens motor useful life.
The variable-frequency electromagnetic line is an insulated wire important on the variable-frequency motor, all use conventional enamelled wire before always, the variable-frequency electromagnetic line has overcome the shortcoming of conventional enamelled wire, conventional enamelled wire is at IGBT, under the impulse wave condition that the PWM speed regulating device provide, because of impulse wave has towering spike, the precipitous rise time is arranged, add transformable or high frequency, therefore, the exhausted film of enamelled wire has produced serious destruction, makes variable-frequency motor be easy to breakdown between adjacent turns in use, has shortened the mission of variable-frequency motor, but the motor with variable-frequency electromagnetic line (being the enamelled wire of anti-the corona) is made has overcome above shortcoming.Along with industrial expansion, frequency control obtains utilization more and more widely.
External in recent years insulating varnish factory commercial city moves on to energy on the nanometer technology of variable-frequency electromagnetic line one after another, and university that some are famous and research institution all add the scientific research ranks one after another, as German Hessen university, U.S. Phelps Dodge company, du pont company.Along with the development trend of world energy sources, the energy-saving type frequency conversion motor is the inexorable trend of development.Therefore be necessary trial-production, development variable-frequency electromagnetic line (being the enamelled wire of anti-the corona).State Council classifies variable-frequency motor as one of ten big new and high technologies of emphasis popularization in " industry of current state key encourage growth, product and technology catalogue ".Variable-frequency motor is high speed development at home and abroad in recent years, clearly expression on calendar year 2001 China's electric wire technical conferences, and frequency control, variable-frequency motor are one of ten big new and high technologies of promoting of China's emphasis.And the present variable-frequency electromagnetic line technology that all adopts two coatings to apply, the anti-high-frequency impulse ability of paint film is relatively poor.
Summary of the invention:
The object of the present invention is to provide a kind of improved variable-frequency electromagnetic line and production method thereof, it can overcome the anti-pulse scarce capacity of variable-frequency electromagnetic line in the prior art, the shortcoming that production method output is lower, cost is higher, painting quality is relatively poor.
To achieve these goals, technical scheme of the present invention is: a kind of variable-frequency electromagnetic line, it mainly comprises copper wire and is located at the priming paint on copper wire surface that it is characterized in that: the copper wire surface is provided with priming paint, intermediate coat, three layers of japanning of finish paint successively, and finish paint is provided with one deck lubricant outward.
A kind of production method of variable-frequency electromagnetic line is characterized in that: the production stage of described variable-frequency electromagnetic line is as follows: a, the soft copper material is carried out wire drawing handle, make copper material smooth surface seamless; B, water clean the back, surface of copper wire and carry out anneal in annealing furnaces, the copper surface soften make the recovery of copper cash lattice with steam protection again after handling; C, utilize mould, nozzle that three layers of japanning are carried out on the copper wire surface; D, on enamelling machine, painted surface is cured, make copper line surface produce smooth complete paint film; E, again copper cash is cooled to room temperature, receiving to drum becomes finished product.
In the main insulation of variable-frequency electromagnetic line of the present invention the utilization new and high technology be nanometer technology the powder distribution of metal oxide between the molecule of polymer, when the solvent evaporation drying, resin " is inlayed " in the middle of the molecule of polymer after finishing crosslinking curing just regularly, played the reinforcing agent effect of organic polymer, also played simultaneously shielding action, make the main insulation of variable-frequency electromagnetic line under high voltage pulse, not produce partial ionization, improved the anti-pulse ability of variable-frequency electromagnetic line greatly, thereby prolonged the useful life of variable-frequency motor, improved the fail safe and the reliability of variable-frequency motor.Simultaneously production technology of the present invention is simple, has both improved the ability of the aging and coil heat ageing of the anti-Pulse Electric of variable-frequency electromagnetic line, also greatly reduces production cost.
Description of drawings:
Fig. 1 is the structural representation of one embodiment of the invention
Embodiment:
The invention will be further described below in conjunction with drawings and Examples.
The present invention mainly comprises copper wire 1 and is located at the priming paint 2 on copper wire surface, it is characterized in that: the copper wire surface is provided with priming paint, intermediate coat 3 (being the quantum screen), 4 three layers of japanning of finish paint successively, finish paint is provided with one deck lubricant 5 outward, the thickness of priming paint is the 0.05-0.15 millimeter, the thickness of intermediate coat is the 0.05-0.2 millimeter, and the thickness of finish paint is the 0.02-0.1 millimeter; The production stage of described variable-frequency electromagnetic line is as follows: a, the soft copper material is carried out wire drawing handle, make copper material smooth surface seamless; B, water clean the back, surface of copper wire and carry out anneal in annealing furnaces, the copper surface soften make the recovery of copper cash lattice with steam protection again after handling; C, three layers of japanning are carried out on the copper wire surface with mould, nozzle; D, on enamelling machine, painted surface is cured, make copper line surface produce smooth complete paint film; E, again copper cash is cooled to room temperature, receiving to drum becomes finished product.The flow velocity of water is 2-3 cube/minute in the cleaning, and the viscosity of japanning reaches 700-1000mPa.s; Annealing time is 10-18 second in the anneal, online annealing, and softening temperature is the 600-650 degree, steam temperature is the 200-300 degree; The time of curing is 2.5-4 minute, and temperature is controlled at the 650-720 degree.
The continuous casting and rolling high-purity hypoxemia copper that above-mentioned said soft copper material is 2.6mm, pliability is good, tensile strength 〉=250N/mm
2Percentage elongation 〉=30%, wire drawing is to adopt domestic best equipment to process, from 8 millimeters to 1.6 millimeters of diameters is to produce at the big drawing machine that the famous NIEHOFF company of Germany introduces, from 2.6 millimeters be to produce to trimmed size at Italian SICME machine, utilize the lubricant of import to obtain not having burr again, fissureless smooth very surperficial.Cleaning is the surface that water cleans copper wire, and wherein the flow velocity of water is 2-3 cube/minute, Automatic Cycle, and every month is to the filtering ponds cleaning once.
Anneal carried out before the copper wire japanning; adopt the tubulose annealing furnace; utilize heat radiation principle that processing is softened on the copper surface; utilize steam protection that the copper cash lattice is restored simultaneously; and make the orderly arrangement of crystal grain; obtain good resistivity simultaneously, GB requires soft attitude resistivity to be not more than 0.017241 Ω * M/MM2, and soft attitude resistivity of the present invention is not more than 0.017200 Ω * M/MM2.In the japanning link, he mainly comprises copper wire and is located at priming paint, intermediate coat and the finish paint on copper wire surface.What the intermediate coat of three coating insulation structures adopted is to coat with lacquer 981-M-31TAM from the frequency conversion of U.S.'s import, two coating insulation structures adopt is SIVANID595 from German ALTANA company, priming paint adopts the MT533 or 355 of German ALTANA company import, because the quantum shielding construction is contained in middle frequency conversion lacquer the inside, thereby can form the paint film of good anti-electric pulse on copper wire surface, cover simultaneously be coated in the copper wire surface lubricant also from external import.
Embodiment 1
The soft copper material of 2.6mm is carried out wire drawing handle and reach 1 millimeter line, make copper material smooth surface seamless; With flow is the surface that 2 cubes/minute water cleans copper wire, copper wire is placed on the annealing of carrying out in the tubulose annealing furnace 15 seconds again, the copper surface soften spends steam protections with 250 again after handling and make the recovery of copper cash lattice; With mould, nozzle the spraying of three layers of paint film is carried out on the copper wire surface, the thickness of priming paint is at least 0.06 millimeter, and the thickness of intermediate coat is at least 0.07 millimeter, and the thickness of finish paint is at least 0.02 millimeter; On enamelling machine, painted surface is cured again, make copper line surface produce smooth complete paint film; Again copper cash is cooled to room temperature, receiving to drum becomes finished product.
Continuous casting and rolling high-purity hypoxemia copper is carried out wire drawing handle, make copper material smooth surface seamless; Clean the surface of copper wires with 3 cubes/minute water, again copper wire is carried out anneal in annealing furnace, the copper surface soften makes the recovery of copper cash lattice with 300 steam protections of spending again after handling; With mould, nozzle three layers of japanning are carried out on the copper wire surface, what priming paint and finish paint all adopted is to coat with lacquer 981-M-31TAM from the frequency conversion of U.S.'s import; Painted surface is carried out curing in 3 minutes on enamelling machine, stoving temperature is 680 degree, makes copper line surface produce smooth complete paint film; At last copper cash is cooled off near room temperature, then receiving to drum becomes finished product.
Claims (4)
1. the production method of a variable-frequency electromagnetic line, it is characterized in that: the production stage of described variable-frequency electromagnetic line is as follows: a, the soft copper material is carried out wire drawing handle, make copper material smooth surface seamless; B, water clean the back, surface of copper wire and carry out anneal in annealing furnaces, the copper surface soften make the recovery of copper cash lattice with steam protection again after handling; C, three layers of japanning are carried out on the copper wire surface with mould, nozzle; D, on enamelling machine, painted surface is cured, make copper line surface produce smooth complete paint film; E, again copper cash is cooled to room temperature, receiving to drum becomes finished product.
2. the production method of a kind of variable-frequency electromagnetic line according to claim 1 is characterized in that: the flow velocity of water is 2-3 cube/minute in the cleaning, and the viscosity of japanning reaches 700-1000mPa.s.
3. the production method of a kind of variable-frequency electromagnetic line according to claim 1 is characterized in that: annealing time is 10-18 second in the anneal, and softening temperature is the 600-650 degree, and steam temperature is the 200-300 degree.
4. the production method of a kind of variable-frequency electromagnetic line according to claim 1 is characterized in that: the time of curing is 2.5-4 minute, and temperature is controlled at the 650-720 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100180439A CN100394515C (en) | 2004-04-29 | 2004-04-29 | Frequency changing electromagnetic wire and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100180439A CN100394515C (en) | 2004-04-29 | 2004-04-29 | Frequency changing electromagnetic wire and manufacturing method thereof |
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| CN1691211A CN1691211A (en) | 2005-11-02 |
| CN100394515C true CN100394515C (en) | 2008-06-11 |
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| CNB2004100180439A Expired - Fee Related CN100394515C (en) | 2004-04-29 | 2004-04-29 | Frequency changing electromagnetic wire and manufacturing method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026027B (en) * | 2006-02-17 | 2011-05-11 | 上海中马电磁线有限公司 | Polyimide enamelled round copper wire deposition process |
| CN101169990B (en) * | 2006-10-27 | 2010-10-27 | 上海裕生特种线材有限公司 | Super micro electromagnetic wire and its production method |
| CN102412026B (en) * | 2011-12-12 | 2013-03-13 | 江苏冰城电材股份有限公司 | Manufacturing method of F-level electromagnetic wire |
| CN104637580A (en) * | 2013-11-07 | 2015-05-20 | 上海裕生特种线材有限公司 | High temperature-resisting aluminum electromagnetic wire and manufacturing method thereof |
| CN104347193A (en) * | 2014-11-03 | 2015-02-11 | 安徽天元电缆有限公司 | Fully-automatic enameled cable production line |
| WO2021128452A1 (en) * | 2019-12-25 | 2021-07-01 | 江苏源通电气有限公司 | Anti-aging epoxy resin box-type transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116715A (en) * | 1985-11-15 | 1986-06-04 | 住友電気工業株式会社 | Manufacture of lubricating insulated wire |
| CN1242582A (en) * | 1999-07-13 | 2000-01-26 | 谢天红 | Magnetic enamel-covered wire and coil, producing method and use therefor |
| US6087592A (en) * | 1997-02-24 | 2000-07-11 | Alcatel | Enameled wire with high resistance to partial discharges |
| CN1265771A (en) * | 1997-08-06 | 2000-09-06 | 施奈克泰迪国际公司 | Coating which is resistant to partial discharges, for enamelled wire |
| CN1482626A (en) * | 2003-05-29 | 2004-03-17 | 上海大学 | Manufacturing method of electromagnetic enamel-covered wire adaptable for variable frequency motor |
-
2004
- 2004-04-29 CN CNB2004100180439A patent/CN100394515C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116715A (en) * | 1985-11-15 | 1986-06-04 | 住友電気工業株式会社 | Manufacture of lubricating insulated wire |
| US6087592A (en) * | 1997-02-24 | 2000-07-11 | Alcatel | Enameled wire with high resistance to partial discharges |
| CN1265771A (en) * | 1997-08-06 | 2000-09-06 | 施奈克泰迪国际公司 | Coating which is resistant to partial discharges, for enamelled wire |
| CN1242582A (en) * | 1999-07-13 | 2000-01-26 | 谢天红 | Magnetic enamel-covered wire and coil, producing method and use therefor |
| CN1482626A (en) * | 2003-05-29 | 2004-03-17 | 上海大学 | Manufacturing method of electromagnetic enamel-covered wire adaptable for variable frequency motor |
Non-Patent Citations (2)
| Title |
|---|
| 新型漆包线制造工艺-电泳涂敷. K.SHIBAYAMA.绝缘材料，第1975 Z1期. 1975 |
| 新型漆包线制造工艺-电泳涂敷. K.SHIBAYAMA.绝缘材料，第1975 Z1期. 1975 * |
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| CN1691211A (en) | 2005-11-02 |
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