CN106531298A - Transposed conductor processed from thin film enameled rectangular wires and fabrication method of transposed conductor - Google Patents

Transposed conductor processed from thin film enameled rectangular wires and fabrication method of transposed conductor Download PDF

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Publication number
CN106531298A
CN106531298A CN201710030441.XA CN201710030441A CN106531298A CN 106531298 A CN106531298 A CN 106531298A CN 201710030441 A CN201710030441 A CN 201710030441A CN 106531298 A CN106531298 A CN 106531298A
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CN
China
Prior art keywords
paint film
conductor
paint
transposed conductor
thin
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Pending
Application number
CN201710030441.XA
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Chinese (zh)
Inventor
陆炳兴
张小波
陈浩菊
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WUXI TOLY ELECTRIC MAGNET WORK CO Ltd
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WUXI TOLY ELECTRIC MAGNET WORK CO Ltd
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Priority to CN201710030441.XA priority Critical patent/CN106531298A/en
Publication of CN106531298A publication Critical patent/CN106531298A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0045—Cable-harnesses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/065—Insulating conductors with lacquers or enamels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
    • H01B7/306—Transposed conductors

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

The invention relates to a transposed conductor processed from thin film enameled rectangular wires and a fabrication method of the transposed conductor, and belongs to a fabrication process of the thin film enameled rectangular wire. The transposed conductor comprises an external insulation layer, two lines of wide-surface thin film enameled rectangular wires which are in contact are arranged in the external insulation layer, transposition of the same rotation direction is performed on upper surfaces and lower surfaces of the two lines of thin film enameled rectangular wires along narrow surfaces, intermediate lining paper is arranged between the two lines of thin film enameled rectangular wires, and the transposed conductor is fabricated by painting, curing, repeating and coating. By the transposed conductor processed from thin film enameled rectangular wires, prepared according to the invention, the integral size of the transposed conductor is shortened, and compared with a standard film enameled rectangular wire, each performance is enabled not to be reduced.

Description

Transposed conductor that a kind of thin paint film enamelled flat wire is processed into and preparation method thereof
Technical field
The present invention relates to transposed conductor for being processed into of a kind of thin paint film enamelled flat wire and preparation method thereof, belongs to thin paint film paint The manufacturing process of bag lenticular wire.
Background technology
Transposed conductor to be referred to and be combined into two row that wide face contacts with each other with the enameling copper strap wire of certain radical, and exists on request Above two row enamel-covered wires and the following transposition for making same steering along leptoprosopy, and make multilamellar with electrician's insulating paper strip and continuously closely wrap Around the wire of composition, load loss when transposed conductor is applied to high-power transformer, can be greatly reduced, reduce coiling hotspot temperature rise, Winding mechanical strength is lifted, makes structure compacter, and coil processing is easier, in large-scale power transformer Winding Design It is widely applied with manufacture.With the continuous increase of high-power transformer overall dimensions, in production, manufacture, transhipment, mistake In journey, cost and efficiency become a big problem.In order to reduce the overall dimensions of transformator, Transformer Winding must be just reduced Size, therefore the size to transposed conductor puts forward higher requirement.
The content of the invention
It is an object of the invention to overcome above-mentioned weak point, there is provided the transposition that a kind of thin paint film enamelled flat wire is processed into is led Line, reduces the overall dimensions of transposed conductor, and ensure that properties contrast standard paint film enamelled flat wire does not weaken.
According to the technical scheme that the present invention is provided, the transposed conductor that a kind of thin paint film enamelled flat wire is processed into, including outer exhausted Edge layer, is provided with the thin paint film enamelled flat wire that two col width faces contact with each other in external insulation layer, in two row thin paint film enamelled flat wires Make the transposition of same steering above and below along leptoprosopy；Middle liner paper is provided between two row thin paint film enamelled flat wires.It is described thin Paint film enamelled flat wire includes cross section for rectangle conductor with rounded corners, is externally coated with paint film in rectangle conductor.It is described The quantity of two row thin paint film enamelled flat wires is odd number root.
The thickness of the paint film is 0.06～0.11mm, and paint film material is acetal paint.
The preparation method of the transposed conductor that the thin paint film enamelled flat wire is processed into, comprises the following steps that：
(1) paint：It is rectangle conductor with rounded corners to take shape of cross section, and which is moved along the winding direction of enamelling machine Dynamic, conductor has acetal paint through surface attachment after acetal paint, adheres to the conductor of acetal paint through fixed japanning die, unnecessary paint Liquid cannot flow back to paint bath again by japanning die；
(2) solidify：Conductor obtained by step (1) is dried as production line enters into vertical enamel-cover after fixing mould of painting Stove carries out baking-curing, and at 180～230 DEG C, lower floor's temperature control is 280～330 for the inlet temperature control of vertical enamel-cover roasting oven DEG C, at 380～430 DEG C, at 480～520 DEG C, solidifying priming paint forms primer film to upper strata temperature control to middle level temperature control；
(3) repeat：By conductor obtained by step (2) according to step (1)-(2) order repetitive cycling paint baking 10 times, it is single Secondary japanning thickness is 0.007～0.015mm, it is ensured that total film thickness is 0.07～0.11mm, obtains final product thin paint film enamelled flat wire；
(4) coat：Take thin paint film enamelled flat wire obtained by step (3) external insulation layer is coated outside which Jing after transposition bunchy, And coil on pulling equipment around obtaining final product the transposed conductor that product thin paint film enamelled flat wire is processed into.
When step (2) solidifies, speed of service V is calculated according to the principle of D*V=30, wherein D=2*a*b/ (a+b)；a The narrow side size of enameled sheet wire is represented, b represents the broadside size of enameled sheet wire.
Beneficial effects of the present invention：The present invention prepares the transposed conductor that the thin paint film enamelled flat wire of gained is processed into, and reduces The overall dimensions of transposed conductor, and ensure that properties contrast standard paint film enamelled flat wire does not weaken.
Description of the drawings
Fig. 1 is transposed conductor schematic cross-section.
Fig. 2 is transposed conductor dimensional structure diagram.
Description of reference numerals：1st, external insulation layer；2nd, thin paint film enamelled flat wire；3rd, rectangle conductor；4th, paint film.
Specific embodiment
The transposed conductor that a kind of 1 thin paint film enamelled flat wire of embodiment is processed into,
Which includes external insulation layer 1, is provided with the thin paint film enamelled flat wire 2 that two col width faces contact with each other in external insulation layer 1, With the following transposition for making same steering along leptoprosopy above two row thin paint film enamelled flat wires 2；Two row thin paint film enamelled flat wires 2 it Between be provided with middle liner paper.The thin paint film enamelled flat wire 2 includes that cross section is rectangle conductor 3 with rounded corners, leads in rectangle Body 3 is externally coated with paint film 4.
The quantity of the two row thin paint film enamelled flat wire 2 is odd number root.
The thickness of the paint film is 0.06～0.11mm, and paint film material is acetal paint.
Embodiment 2
It is the rectangle conductor specification 1.18mm × 6.40mm with fillet to take the cross section for having produced, using fixed painting Paint mould carries out baking-curing, the entrance temperature of vertical enamel-cover roasting oven in the surface-coated priming paint of conductor into vertical enamel-cover roasting oven Degree control at 187～190 DEG C, lower floor's temperature control at 289～292 DEG C, middle level temperature control at 389～390 DEG C, upper strata temperature At 481～483 DEG C, the speed of service is controlled in 14.8m/min, 10 passages of being painted under the technological parameter repeatedly for control, total after solidification The narrow side 0.10mm of film thickness, broadside 0.11mm.
10 passages japanning thickness is as shown in table 1 below：
Table 1
Japanning passage Size after japanning Narrow side film thickness Broadside film thickness
1.170*6.399
1 1.180*6.400 0.010 0.010
2 1.190*6.410 0.010 0.010
3 1.200*6.420 0.010 0.010
4 1.210*6.430 0.010 0.010
5 1.220*6.440 0.010 0.010
6 1.230*6.450 0.010 0.010
7 1.240*6.465 0.010 0.015
8 1.250*6.480 0.010 0.015
9 1.260*6.490 0.010 0.010
10 1.270*6.50 0.010 0.010
33 heat resistance self-adhesive enameled sheet wire specification 1.18mm × 6.40mm, coat external insulation outside which Jing after transposition bunchy Layer, and paint film transposed conductor thin around formation is coiled on pulling equipment.
The results of property of the wire is as follows：
The narrow side film thickness of enamel-covered wire is 0.100mm, and broadside film thickness is 0.110mm.Breakdown voltage is more than 2000V. Tack test paint film does not ftracture.Lacquer test scratch resistance number of times is scraped more than 100 times.Transposed conductor width to size 22.40mm, axial chi Very little 13.02mm.
Embodiment 3
It is the rectangle conductor specification 1.14mm × 5.10mm with fillet to take the cross section for having produced.Using fixed painting Paint mould carries out baking-curing, the entrance temperature of vertical enamel-cover roasting oven in the surface-coated priming paint of conductor into vertical enamel-cover roasting oven At 211 DEG C, lower floor's temperature control at 303 DEG C, at 407 DEG C, transport middle level temperature control at 480 DEG C by upper strata temperature control for degree control Row speed controlling is painted repeatedly in 16.0m/min, under the technological parameter 10 passages, the narrow side 0.11mm of total film thickness after solidification, Broadside 0.11mm, it is concrete as shown in table 2.
Table 2
Japanning passage Actual size Narrow side film thickness Broadside film thickness
1.130*5.110
1 1.140*5.120 0.010 0.010
2 1.150*5.130 0.010 0.010
3 1.160*5.140 0.010 0.010
4 1.170*5.150 0.010 0.010
5 1.180*5.160 0.010 0.010
6 1.190*5.170 0.010 0.010
7 1.200*5.185 0.010 0.015
8 1.215*5.200 0.015 0.015
9 1.230*5.210 0.015 0.010
10 1.240*5.220 0.010 0.010
21 heat resistance self-adhesive enameled sheet wire specification 1.14mm × 5.10mm, coat external insulation outside which Jing after transposition bunchy Layer, and paint film transposed conductor thin around formation is coiled on pulling equipment.
The narrow side film thickness of enamel-covered wire is 0.110mm, and broadside film thickness is 0.110mm.Breakdown voltage is more than 2000V. Tack test paint film does not ftracture.Lacquer test scratch resistance number of times is scraped more than 100 times.Transposed conductor width to size 13.95mm, axial chi Very little 10.37mm.
Embodiment 3
It is the rectangle conductor specification 1.25mm × 6.90mm with fillet to take the cross section for having produced.Using fixed painting Paint mould carries out baking-curing, the entrance temperature of vertical enamel-cover roasting oven in the surface-coated priming paint of conductor into vertical enamel-cover roasting oven At 192 DEG C, lower floor's temperature control at 289 DEG C, at 390 DEG C, transport middle level temperature control at 480 DEG C by upper strata temperature control for degree control Row speed controlling is painted repeatedly in 14.2m/min, under the technological parameter 10 passages, the narrow side 0.110mm of total film thickness after solidification, Broadside 0.102mm, it is concrete as shown in table 3.
Table 3
Japanning passage Actual size Narrow side size Broadside size
1.270*7.035
1 1.280*7.045 0.010 0.010
2 1.290*7.060 0.010 0.015
3 1.300*7.070 0.010 0.010
4 1.310*7.085 0.010 0.015
5 1.320*7.095 0.010 0.010
6 1.330*7.100 0.010 0.005
7 1.340*7.107 0.010 0.007
8 1.350*7.117 0.010 0.010
9 1.357*7.127 0.007 0.010
10 1.367*7.137 0.010 0.010
19 heat resistance self-adhesive enameled sheet wire specification 1.25mm × 6.90mm, coat external insulation outside which Jing after transposition bunchy Layer, and paint film transposed conductor thin around formation is coiled on pulling equipment.
The narrow side film thickness of enamel-covered wire is 0.110mm, and broadside film thickness is 0.102mm.Breakdown voltage is more than 2000V. Tack test paint film does not ftracture.Lacquer test scratch resistance number of times is scraped more than 100 times.Transposed conductor width to size 13.62mm, axial chi Very little 14.03mm.

Claims (6)

1. the transposed conductor that a kind of thin paint film enamelled flat wire is processed into, is characterized in that：Including external insulation layer（1）, in external insulation layer （1）The thin paint film enamelled flat wire that two col width faces contact with each other is provided with inside（2）, in two row thin paint film enamelled flat wires（2）Above and Make the transposition of same steering below along leptoprosopy；In two row thin paint film enamelled flat wires（2）Between be provided with middle liner paper.
2. the transposed conductor that thin paint film enamelled flat wire as claimed in claim 1 is processed into, is characterized in that：The thin paint film enamel-cover is flat Line includes that cross section is rectangle conductor with rounded corners（3）, in rectangle conductor（3）Be externally coated with paint film（4）.
3. the transposed conductor that thin paint film enamelled flat wire as claimed in claim 1 is processed into, is characterized in that：Described two arrange thin paint film paint Bag lenticular wire（2）Quantity be odd number root.
4. the transposed conductor that thin paint film enamelled flat wire as claimed in claim 2 is processed into, is characterized in that：The thickness of the paint film is 0.06 ~ 0.11mm, paint film material are acetal paint.
5. the preparation method of the transposed conductor that thin paint film enamelled flat wire described in claim 1 is processed into, is characterized in that concrete steps It is as follows：
（1）Japanning：It is rectangle conductor with rounded corners to take shape of cross section, which is moved along the winding direction of enamelling machine, is led Body has acetal paint through surface attachment after acetal paint, adheres to the conductor of acetal paint through fixed japanning die, unnecessary paint liquid without Method flows back to paint bath again by japanning die；
（2）Solidification：By step（1）Gained conductor is entered as production line enters into vertical enamel-cover roasting oven after fixing mould of painting Row baking-curing, the inlet temperature control of vertical enamel-cover roasting oven at 180 ~ 230 DEG C, lower floor's temperature control at 280 ~ 330 DEG C, middle level At 380 ~ 430 DEG C, at 480 ~ 520 DEG C, solidifying priming paint forms primer film to upper strata temperature control to temperature control；
（3）Repeat：By step（2）Gained conductor is according to step（1）-（2）Order repetitive cycling paint baking 10 times, single applies Paint thickness is 0.007 ~ 0.015mm, it is ensured that total film thickness is 0.07 ~ 0.11mm, obtains final product thin paint film enamelled flat wire；
（4）Cladding：Take step（3）Gained thin paint film enamelled flat wire coats external insulation layer, and Jing outside which Jing after transposition bunchy Cross and coil on pulling equipment around obtaining final product the transposed conductor that product thin paint film enamelled flat wire is processed into.
6. the preparation method of the transposed conductor that thin paint film enamelled flat wire as claimed in claim 5 is processed into, is characterized in that：Step （2）During solidification, speed of service V is calculated according to the principle of D*V=30, wherein D=2*a*b/ (a+b)；A represents enameled sheet wire Narrow side size, b represent the broadside size of enameled sheet wire.
CN201710030441.XA 2017-01-16 2017-01-16 Transposed conductor processed from thin film enameled rectangular wires and fabrication method of transposed conductor Pending CN106531298A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565070A (en) * 2018-03-27 2018-09-21 阿斯塔导线有限公司 The manufacturing process of pre-buried fiber-optic grating sensor transposed conductor
CN110364305A (en) * 2019-07-29 2019-10-22 湖州师范学院 Double rollers enameled sheet wire conductor forming device
WO2019219226A1 (en) * 2018-05-17 2019-11-21 Abb Schweiz Ag Transposed cable and winding comprising said transposed cable
CN112670013A (en) * 2020-12-18 2021-04-16 铜陵兢强电子科技股份有限公司 Ultra-thick paint film enameled flat wire for pure electric vehicle
CN116313245A (en) * 2023-03-31 2023-06-23 浙江先登绿能新材有限公司 High-frequency low-resistance enameled flat wire

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JPH11203948A (en) * 1998-01-14 1999-07-30 Hitachi Cable Ltd Self-fusing property transposed electric wire
WO2011009729A2 (en) * 2009-07-22 2011-01-27 Asta Elektrodraht Gmbh Continuously transposed conductor
CN201796621U (en) * 2010-03-23 2011-04-13 衡阳雁能电工有限公司 Transposed conductor
CN202512925U (en) * 2012-03-30 2012-10-31 四川金瑞电工有限责任公司 Multi-section series transposed conductor
CN202796136U (en) * 2012-08-29 2013-03-13 无锡统力电工有限公司 Acetal transposed conductor for high-speed train traction transformers
CN104240804A (en) * 2014-09-30 2014-12-24 无锡统力电工有限公司 Heat-resistant self-sticking transposed conductor for transformers and manufacturing method thereof
US20150310960A1 (en) * 2014-04-24 2015-10-29 Essex Group, Inc. Continously Transposed Conductor
CN106229029A (en) * 2016-08-30 2016-12-14 无锡统力电工股份有限公司 A kind of transformator rare earth-boron copper alloy transposed conductor and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11203948A (en) * 1998-01-14 1999-07-30 Hitachi Cable Ltd Self-fusing property transposed electric wire
WO2011009729A2 (en) * 2009-07-22 2011-01-27 Asta Elektrodraht Gmbh Continuously transposed conductor
CN201796621U (en) * 2010-03-23 2011-04-13 衡阳雁能电工有限公司 Transposed conductor
CN202512925U (en) * 2012-03-30 2012-10-31 四川金瑞电工有限责任公司 Multi-section series transposed conductor
CN202796136U (en) * 2012-08-29 2013-03-13 无锡统力电工有限公司 Acetal transposed conductor for high-speed train traction transformers
US20150310960A1 (en) * 2014-04-24 2015-10-29 Essex Group, Inc. Continously Transposed Conductor
CN104240804A (en) * 2014-09-30 2014-12-24 无锡统力电工有限公司 Heat-resistant self-sticking transposed conductor for transformers and manufacturing method thereof
CN106229029A (en) * 2016-08-30 2016-12-14 无锡统力电工股份有限公司 A kind of transformator rare earth-boron copper alloy transposed conductor and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565070A (en) * 2018-03-27 2018-09-21 阿斯塔导线有限公司 The manufacturing process of pre-buried fiber-optic grating sensor transposed conductor
WO2019219226A1 (en) * 2018-05-17 2019-11-21 Abb Schweiz Ag Transposed cable and winding comprising said transposed cable
CN110364305A (en) * 2019-07-29 2019-10-22 湖州师范学院 Double rollers enameled sheet wire conductor forming device
CN110364305B (en) * 2019-07-29 2024-03-29 湖州师范学院 Double-roller enamelled flat wire conductor forming device
CN112670013A (en) * 2020-12-18 2021-04-16 铜陵兢强电子科技股份有限公司 Ultra-thick paint film enameled flat wire for pure electric vehicle
CN116313245A (en) * 2023-03-31 2023-06-23 浙江先登绿能新材有限公司 High-frequency low-resistance enameled flat wire

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Application publication date: 20170322