CN102412027A - Manufacturing method of H-level and 200-level electromagnetic wire - Google Patents
Manufacturing method of H-level and 200-level electromagnetic wire Download PDFInfo
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- CN102412027A CN102412027A CN2011104120259A CN201110412025A CN102412027A CN 102412027 A CN102412027 A CN 102412027A CN 2011104120259 A CN2011104120259 A CN 2011104120259A CN 201110412025 A CN201110412025 A CN 201110412025A CN 102412027 A CN102412027 A CN 102412027A
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Abstract
The invention relates to a manufacturing method of an H-level and 200-level electromagnetic wire, and the manufacturing method provided by the invention is lower in manufacturing cost, is suitable for energy conservation and emission reduction can be used for reducing the environmental pollution and ensuring the product performance to be higher. The manufacturing method comprises the following steps: adding a polyester resin into a nanometer material subjected to surface activation treatment, uniformly stirring and then delivering into an extruder hopper; the insulation resin to be in a high-temperature viscous flow state by virtue of an extruder and continuously extruding from a die sleeve port of the extruder; meanwhile, aligning and preheating a bare copper wire, enabling the aligned and preheated bare copper wire to pass through a forming die of a machine head of the extruder, and packaging the insulation resin extruded from the die sleeve onto the bare copper wire; and cooling the bare copper wire covered with the insulation resin so as to obtain the H-level and 200-level electromagnetic wire; the electromagnetic wire eliminates a gap at a joint seam of a pin hole and a rolling covered wire, thus the electrical insulation performance is improved; and meanwhile, an inorganic nanometer material with high corona resistance and high thermal conductivity is added into insulating layer, the heat resistance of the insulating layer is improved, and the heat-conduction coefficient can achieve 0.60 W/Mk.
Description
Technical field
The present invention relates to the technical field that the electrician makes with electromagnetic wire; Relating to the coming of new technology with electromagnetic wire such as high-voltage generator, high-tension motor, track drawing motor, frequency-conversion and speed-regulation motor, wind-driven generator, specifically is the manufacturing approach of a kind of H level, 200 grades of electromagnetic wires.
Background technology
In electrician trade, the electromagnetic wire demand is very big.Usually the electromagnetic wire of using in motor, the electrical apparatus industry has two big types: enamelled wire and lapped wire.The amount of solid of wire enamel is very little in the enamelled wire manufacture process, less than 20%, be coated onto certain film thickness, just must be coated with repeatedly, cures repeatedly, makes solvent evaporates and makes film curing.Not only waste a large amount of organic solvents, and caused the severe contamination of environment, repeatedly cured the huge consumption that also causes electric power.Concerning lapped wire; The lapped wire that specific type of electric machines such as particularly large-scale high-voltage generator, high-tension motor, track traffic traction electric machine, high-voltage frequency conversion and speed-adjusting motor are used or mica (polyester film) coiling or polyimide film sintered line; Or the wrapped again mica tape in outside of film wrapped (sintering) layer, what have also wants the wrapped glass fiber structure of dipping lacquer again on above insulating barrier.Wherein mica tape or the polyimide film used of lapping electromagnetic wire all used a large amount of organic solvents, and consumed a large amount of electric power, causes waste, improved the production cost of electromagnetic wire, simultaneously also severe contamination environment.On the other hand, enamelled wire inevitably has pin hole, and the wrapped sintering line of mica lapped wire and film all has seam crossing, and these all are the weak link of electricity undoubtedly on electrical property.Be the high-pressure trend that adapts to high-rating generator, the frequency conversionization of variable working condition high-tension motor, track traffic high speed and heavy loading require electromagnetic wire that higher reliability and long useful life are arranged.
How solving the pollution in the electromagnetic wire production process, the problem of high energy consumption, improve the performance of electromagnetic wire simultaneously, is the technical barrier of this area.
Summary of the invention
The technical problem that the present invention will solve provides the manufacturing approach that a kind of production cost is lower, be suitable for energy-saving and emission-reduction, minimizing environmental pollution and properties of product higher H level, 200 grades of electromagnetic wires.
In order to solve the problems of the technologies described above, the manufacturing approach of single face reinforcement H level provided by the invention, 200 grades of electromagnetic wires comprises: the nano material that will pass through surface activation process adds that to obtain insulating resin after stirring in the polyimide resin subsequent use; Wherein, the quality of nano material is the 12-25% of polyimide resin, and nano material is mixed by the silicon dioxide of 35～40wt%, the alundum (Al of 15～20wt% and the aluminium nitride of 50～40wt%; Said insulating resin is sent into the extruder hopper, and extruder makes insulating resin be the high temperature viscous state, and extrudes from the die sleeve mouth of extruder continuously; Simultaneously, with bare copper wire through alignment, be preheated to after 100-120 ℃ through the shaping mould of cross-head, the insulating resin of being extruded by said die sleeve mouth is extruded on the bare copper wire; The bare copper wire that is coated with insulating resin promptly obtains H level, 200 grades of electromagnetic wires after cooling.
Said extruder is heated to 260～300 ℃, 350～360 ℃ and 360～365 ℃ to said insulating resin segmentation successively; So that insulating resin is the high temperature viscous state; And press to head continuously; Extrude from the die sleeve mouth annular gap of materials flow through between core rod and die sleeve that arrives head, bare copper wire through head be extruded in when being installed in the shaping mould in the head bare copper wire around.
During cooling, adopt the room temperature water of the warm water, 15-30 ℃ of 80-90 ℃ hot water, 50-60 ℃ to cool off successively successively 0.5-1 minute,, prevent that unexpected cooling from possibly make the situation of the local cracking of insulating resin to form closely knit insulating barrier continuously.
Nano material is a pellet; This pellet is through heating to 90～95 ℃ after vacuumize is no less than processing in 6 hours; With to the greatest extent with the moisture in the pellet, volatile matter and relevant low molecule content baking, make not to be prone to bubble on the final insulation resin, can guarantee that product has higher electrical property and reliability.
Technique scheme of the present invention is compared prior art and is had the following advantages:
(1) manufacturing approach of H level of the present invention, 200 grades of electromagnetic wires; The fire resistant polyimide resin of nano materials such as the silicon dioxide of employing adding process surface activation process, alundum (Al, aluminium nitride is an insulating resin, produces H level, 200 grades of electromagnetic wires through the technology with extrusion modling.The electromagnetic wire of processing has like this been eliminated the gap of the pin hole and the lapped wire seam crossing of enamelled wire, has improved electrical insulation properties; In its insulation, added inorganic nano material simultaneously: silicon dioxide, alundum (Al and aluminium nitride with high corona resistance, high-termal conductivity; The proportioning of these three kinds of inorganic nano materials; Be suitable for improving the thermal endurance of insulating barrier, and make the electromagnetic wire of producing reach H level, 200 class F insulations; Conductive coefficient reaches 0.60W/Mk.Thickness of insulating layer can be by regulating in 0.15～1.4mm (two-sided thickness) scope.
(2) process of the present invention need not organic solvent, has stopped the discharging of organic solvent, has eliminated the pollution to environment; Compare insulating barrier with enamelled wire and need not repeatedly to paint, repeatedly cure and hot setting, compare the operation of having saved thin film fabrication with the film lapped wire, heater power has only several kilowatts, and economize on electricity is more than at least 200 kilowatts.So the product quality that process of the present invention is produced is higher, production process is pollution-free, zero discharge, production efficiency are higher, can be significantly energy-conservation.Process of the present invention is applicable to other insulating resins with thermoplastic characteristics makes circle and rectangular electromagnetic wire.
(3) preheat temperature of said bare copper wire is 100-120 ℃, and this temperature is suitable for avoiding the quick oxidation of generation of bare copper wire, can dry by the fire moisture content and volatile impurity on the bare copper wire again, guarantees the electrical property of electromagnetic wire.In addition, dwindle the temperature difference of bare copper wire and the insulating resin extruded, there is bigger contraction in the insulating resin that can avoid extruding when being extruded on the bare copper wire and influences electrical property.
Description of drawings
For content of the present invention is more clearly understood, below basis specific embodiment and combine
Accompanying drawing is done further detailed explanation to the present invention, wherein
Fig. 1 is the structural representation of the production line of H level of the present invention, 200 grades of electromagnetic wires.
Reference numeral: 1--actinobacillus device, 2--regulating wheel, 3--preheater, 4--extruder, 5--automatic feeding device, 6--bosh, 7--meter counter, 8--draw-gear, 9--winding and arranging device, 10--control cubicle.
Embodiment
The H level of present embodiment, the production method of 200 grades of electromagnetic wires comprise: pellet through nano materials such as the silicon dioxide of activation processing, alundum (Al, aluminium nitride, is processed in the surface; This pellet is no less than processing in 6 hours through (90～95 ℃) vacuumize of heating, to remove volatile matter and the moisture in the pellet.
Pellet comprises: the aluminium nitride of the silicon dioxide of 37wt%, the alundum (Al of 17wt% and 46wt%; This pellet added to obtain insulating resin after polyimide resin stirs subsequent use.
Said insulating resin is put into the extruder hopper, start extruder; Said extruder is heated to 260～300 ℃, 350～360 ℃ and 360～365 ℃ to said insulating resin segmentation successively.This moment, pellet was the high temperature viscous state, and was pressed against head; Extrude from the die sleeve mouth annular gap of materials flow through between core rod and die sleeve that arrives head; Make the bare copper wire that is preheated to 110 ℃ pass cross-head and be installed in the shaping mould in the head; The insulating resin that is melt into viscous state is expressed on the bare copper wire that is extruded in circle or rectangle on the bare copper wire; Adopt 85 ℃ hot water, 55 ℃ warm water, 20 ℃ room temperature water to cool off successively then successively 40 seconds; To form the continuous closely knit insulating barrier that thickness is close to bare copper wire uniformly, rolling is to take-up reel the most then.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to execution mode of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (4)
1. the manufacturing approach of a H level, 200 grades of electromagnetic wires comprises:
The nano material that to pass through surface activation process adds that to obtain insulating resin after polyimide resin stirs subsequent use; Wherein, the quality of nano material is the 12-25% of polyimide resin, and nano material is mixed by the silicon dioxide of 35～40wt%, the alundum (Al of 15～20wt% and the aluminium nitride of 50～40wt%;
Said insulating resin is sent into the extruder hopper, and extruder makes insulating resin be the high temperature viscous state, and extrudes from the die sleeve mouth of extruder continuously;
Simultaneously, with bare copper wire through alignment, be preheated to after 100-120 ℃ through the shaping mould of cross-head, the insulating resin of being extruded by said die sleeve mouth is extruded on the bare copper wire;
The bare copper wire that is coated with insulating resin promptly obtains H level, 200 grades of electromagnetic wires after cooling.
2. the manufacturing approach of H level according to claim 1,200 grades of electromagnetic wires is characterized in that: said extruder is heated to 260～300 ℃, 350～360 ℃ and 360～365 ℃ to said insulating resin segmentation successively.
3. according to the manufacturing approach of claims 2 described H levels, 200 grades of electromagnetic wires; It is characterized in that: when the said bare copper wire that is coated with insulating resin of cooling, adopt the room temperature water of the warm water, 15-30 ℃ of 80-90 ℃ hot water, 50-60 ℃ to cool off successively successively 0.5-1 minute.
4. according to the manufacturing approach of the described H level of one of claims 1-3,200 grades of electromagnetic wires, it is characterized in that: nano material is a pellet, and this pellet is through heating to 90～95 ℃ after vacuumize is no less than processing in 6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110412025 CN102412027B (en) | 2011-12-12 | 2011-12-12 | Manufacturing method of H-level and 200-level electromagnetic wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110412025 CN102412027B (en) | 2011-12-12 | 2011-12-12 | Manufacturing method of H-level and 200-level electromagnetic wire |
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| CN102412027A true CN102412027A (en) | 2012-04-11 |
| CN102412027B CN102412027B (en) | 2013-01-23 |
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| CN 201110412025 Active CN102412027B (en) | 2011-12-12 | 2011-12-12 | Manufacturing method of H-level and 200-level electromagnetic wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982902A (en) * | 2012-11-22 | 2013-03-20 | 安徽天星光纤通信设备有限公司 | Method for producing serial line |
| CN112102991A (en) * | 2020-08-14 | 2020-12-18 | 广西昌用电线电缆有限公司 | Corona-resistant cable and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718658A (en) * | 2005-01-21 | 2006-01-11 | 桂林工学院 | Polyimide/inorganic nano-composite insulating varnish and its preparation method |
| CN101789654A (en) * | 2010-02-26 | 2010-07-28 | 株洲敏锐轨道电气有限责任公司 | Insulating method and device of oil pump motor stator of electric locomotive transformer powered up by frequency converter |
| CN101824268A (en) * | 2010-05-07 | 2010-09-08 | 江苏八达线缆有限公司 | Production method of nano composite modified insulating paint for enameled wire and high-performance nano composite enameled wire |
| CN101831175A (en) * | 2010-04-01 | 2010-09-15 | 辽宁科技大学 | Colorless and transparent polyimide nano-composite material membrane and preparation method thereof |
| CN102108263A (en) * | 2009-12-24 | 2011-06-29 | 天津鑫安天亿电子科技有限公司 | Insulating adhesive material with high thermal conductivity |
-
2011
- 2011-12-12 CN CN 201110412025 patent/CN102412027B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718658A (en) * | 2005-01-21 | 2006-01-11 | 桂林工学院 | Polyimide/inorganic nano-composite insulating varnish and its preparation method |
| CN102108263A (en) * | 2009-12-24 | 2011-06-29 | 天津鑫安天亿电子科技有限公司 | Insulating adhesive material with high thermal conductivity |
| CN101789654A (en) * | 2010-02-26 | 2010-07-28 | 株洲敏锐轨道电气有限责任公司 | Insulating method and device of oil pump motor stator of electric locomotive transformer powered up by frequency converter |
| CN101831175A (en) * | 2010-04-01 | 2010-09-15 | 辽宁科技大学 | Colorless and transparent polyimide nano-composite material membrane and preparation method thereof |
| CN101824268A (en) * | 2010-05-07 | 2010-09-08 | 江苏八达线缆有限公司 | Production method of nano composite modified insulating paint for enameled wire and high-performance nano composite enameled wire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982902A (en) * | 2012-11-22 | 2013-03-20 | 安徽天星光纤通信设备有限公司 | Method for producing serial line |
| CN102982902B (en) * | 2012-11-22 | 2015-10-07 | 安徽天星光纤通信设备有限公司 | A kind of production method of tandem wire |
| CN112102991A (en) * | 2020-08-14 | 2020-12-18 | 广西昌用电线电缆有限公司 | Corona-resistant cable and preparation method thereof |
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| CN102412027B (en) | 2013-01-23 |
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Address after: 225402 Chengdong Industrial Zone, Taixing Economic Development Zone, Taizhou, Jiangsu Patentee after: Jiangsu Bingcheng Electrical Material Co., Ltd. Address before: 212323 Zhenjiang City, Jiangsu province Danyang City Jiepai Town Street No. 9 Patentee before: Jiangsu Bingcheng Electrical Material Co., Ltd. |
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Effective date of registration: 20161027 Address after: 212300 Zhenjiang City, Jiangsu province Danyang City Qingfeng road Yunyang Street South Patentee after: Jiangsu City Hydrogen Energy Technology Co. Ltd. Address before: 225402 Chengdong Industrial Zone, Taixing Economic Development Zone, Taizhou, Jiangsu Patentee before: Jiangsu Bingcheng Electrical Material Co., Ltd. |