CN1424731A - Longitudinal assembled enamel flat wires and manufacture thereof - Google Patents
Longitudinal assembled enamel flat wires and manufacture thereof Download PDFInfo
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- CN1424731A CN1424731A CN 02145309 CN02145309A CN1424731A CN 1424731 A CN1424731 A CN 1424731A CN 02145309 CN02145309 CN 02145309 CN 02145309 A CN02145309 A CN 02145309A CN 1424731 A CN1424731 A CN 1424731A
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Abstract
An axially combined conductor of enamelled flat wires is prepared from 2-4 flat wires through enamelling, wrapping it with paper,m parallelly arranging, and wrapping with electric insulating paper. It can be used for the transformer winding with special requirement to electric performance.
Description
Technical field
The invention belongs to technical field of electrical equipment, be specifically related to axial composite conductor of enameled sheet wire that a kind of special transformer uses and preparation method thereof.
Background technology
According to the different performance requirement of transformer, the lead that its winding is used also has different specification requirements.Common composite conductor be by 2-4 root flat wire with paper wrapped along broadside overlapping after again turnkey exterior insulation paper form.Its planform as shown in Figure 1.But this composite conductor version can not satisfy the needs of the transformer of certain property requirement.
Summary of the invention
In order to satisfy the needs of the transformer that special electric performance requirement is arranged, the present invention has designed a kind of new composite conductor, this composite conductor respectively after the insulation of enamel-cover, paper bag, axially makes up (promptly along lenticular wire minor face side by side make up) along coil by 2-4 root lenticular wire, is made of exterior insulation paper turnkey again.Its structure as shown in Figure 2.
The composite conductor of said structure, the size range of its lenticular wire can be: thickness (narrow limit) 3.5-8mm, width (long limit) 4-10mm.The film thickness of single lenticular wire is 11-16 μ m, and the insulating paper layer thickness of solid wire is 0.16-0.45mm, and the thickness of outside full packaged insulation materials ply of paper is 0.6-3.0mm.
Have following technological difficulties to need to solve to above-mentioned specific combination wire producing:
1, the thickness of single lenticular wire is bigger, is 2-3 times of general lead.This brings big difficulty to enamelling process, and little as deflection, tractive effort is big, because line is thick, is difficult for making lead fully to be heated when annealing and lead hardness is raise, and it is big that difficulty is solidified in japanning, influence japanning performance etc.
2, lead is listed as mutually along narrow limit, poor stability, and lead outer shape and tolerance control difficulty are big, take-up coiling difficulty.
For this reason, the present invention proposes the corresponding manufacture method of this composite conductor.
At first, be provided with the preceding unwrapping wire apparatus for bending of solid conductor japanning.In lead when japanning that makes this super thick wire gauge, be unwrapping wire smoothly, avoids various guide wheels of initial stage because of being subjected to the tractive effort effect guide wheel shaft reduction to be decreased, and causes lead to attenuate, or quality problems such as appearance " S " distortion.Actinobacillus device is made of two rows combination guide wheel, as shown in Figure 3.Last row's guide wheel 5 is fixed on the wheel frame 7, following row's guide wheel 6 intersects with the position of last row's guide wheel 5, be fixed on the portable plate 8, be provided with between the bottom of portable plate 8 and wheel frame 7 and regulate bolt 9, regulate the position that bolt scalable upper and lower two is arranged between the guide wheels by this.
The radioactive ray bending device that constitutes through the combination guide wheel before the solid conductor japanning can improve lead hardness.By regulating the distance that bolt 9 is regulated between upper and lower row's guide wheel, regulate the stressed stress situation of lead exactly, improve " S " distortion of lead.Be that this device can carry out cure process to lead, improve lead intensity.
Centre-to-centre spacing between the diameter of the guide wheel of this apparatus for bending and the left and right sides guide wheel can be determined according to the wire gauge of lead.General guide wheel diameter is 60-80mm, and the centre-to-centre spacing of adjacent two guide wheels in the left and right sides is 140-160mm.
The manufacturing process steps of composite conductor of the present invention is as follows:
1, sclerosis bare copper flat wire.Promptly the bare copper flat wire hardness by mechanical press is 300N/mm
2About, through above-mentioned unwrapping wire apparatus for bending, make lead hardness reach 350-400N/mm
2
2, to lead through unwrapping wire apparatus for bending sclerosis, enter and lead softly on the softening furnace, the softening furnace temperature is controlled to be: go up furnace temperature 345-370 ℃, following furnace temperature 245-275 ℃, make lead softening to 150-180N/mm
2
3, then through the guide wheel under the closed tank, cooling, cleaning, enter japanning lacquer cylinder again to the japanning mould, paint, enter the baking line oven then and cure, its baking line oven temperature is controlled to be: inlet temperature 130-150 ℃, following furnace temperature 290-310 ℃, middle furnace temperature 380-420 ℃, last furnace temperature 330-350 ℃.Cure through repeatedly (being generally about 10 times) circulation, outlet then is through traction wheel, to the treucher take-up.
4, for the lead through enamel-cover, make up on equipment, its step is as follows: earlier with solid wire bag paper, and the alignment smoothing, arranged side by side, spacing along narrow limit then, full packaged insulation materials paper, take-up.
The axial composite conductor of enameled sheet wire through the inventive method making, its mechanicalness (as percentage elongation, lead hardness) and electric property (as the performances such as compressive resistance, paint film adhesion of lacquer) meet the relevant technologies standard-required fully, thereby provide a kind of new composite conductor kind for making Transformer Winding.
Description of drawings
Fig. 1 is the composite conductor cross-section illustration that overlaps along the lenticular wire broadside.
Fig. 2 is the composite conductor cross-section illustration of arranging along the lenticular wire minor face.
Fig. 3 is the preceding actinobacillus device of lead japanning.
Number in the figure: 1 is lenticular wire, and 2 is the solid wire paint film, and 3 is the solid wire insulating paper layer, and 4 for turnkey contains insulating paper layer, and 5 is last row's guide wheel, and 6 are following row's guide wheel, and 7 is wheel bracket, and 8 is portable plate, and 9 for regulating bolt.
Embodiment
The invention is further illustrated by the following examples.
Embodiment 1, and according to the requirement of certain special transformer winding, the single lenticular wire of the axial composite conductor of enameled sheet wire is 2 copper cash, and is arranged side by side by narrow limit.Wire gauge is 3.85 * 5.6 (mm).The film thickness of solid wire is about 12 μ m, and the thickness of the insulating paper layer of solid wire is 0.25mm, and outside full packaged insulation materials ply of paper thickness is 2mm.Its manufacturing process steps is as follows:
1, the bare copper flat wire hardness by mechanical press is 300N/mm
2,, make lead hardness reach 350-400 N/mm through the unwrapping wire apparatus for bending
2
2, lead through softening furnace soft, control softening furnace temperature: go up 350 ℃ of furnace temperature, 250 ℃ of following furnace temperature.
3, through cooling, cleaning,, cure control enameling furnace temperature to enameling furnace through japanning: 140 ℃ of inlet temperatures, 295 ℃ of following furnace temperatures, 390 ℃ of middle furnace temperatures, 330 ℃ of last furnace temperatures circulate 10 times.Lead hardness (or claiming yield strength) is secondary, and б 0.2 is 150 N/mm
2
4, on equipment, make up at last.
In the above-mentioned technology, except the unwrapping wire apparatus for bending was set, all the other equipment were identical with former technology.
Embodiment 2
The equipment of processing step and use is with embodiment 1.Its wire gauge is 4.1 * 6.0 (mm).Control softening furnace temperature: go up 365 ℃ of furnace temperature, 270 ℃ of following furnace temperature; Control baking line oven temperature: 145 ℃ of inlet temperatures, 305 ℃ of following furnace temperatures, 410 ℃ of middle furnace temperatures, 350 ℃ of last furnace temperatures, lead hardness is secondary, б 0.2 is 150 N/mm
2
Embodiment 3
The unwrapping wire apparatus for bending as shown in Figure 3. Guide wheel 5 and 6 diameter are 70mm, about centre-to-centre spacing between two guide wheels be 150mm, every row's guide wheel is 4.Wheel bracket 7 width are 230mm, and length is 670mm, portable plate 8 totally 2 removable.The wheel shaft of last row's guide wheel 5 is fixed on the upside of support 7, and one group in twos on following row's guide wheel 6, wheel shaft are individually fixed on 2 portable plates 8, and the portable plate downside is respectively arranged with regulates bolt 9.Through aggregate erection, debugging promptly gets required bending device, can be used for the lead bending of above-mentioned two examples.
Claims (4)
1, the axial composite conductor of a kind of enameled sheet wire is characterized in that by 2-4 root lenticular wire axially making up along coil respectively after the insulation of enamel-cover, paper bag, is made of exterior insulation paper turnkey again.
2, composite conductor according to claim 1, the thickness that it is characterized in that single lenticular wire is 3.5-8mm, and width is 4-10mm, and the film thickness of single lenticular wire is 11-16 μ m, insulating paper layer thickness is 0.16-0.45mm, and outside full packaged insulation materials layer thickness is 0.6-3.0mm.
3, the manufacture method of the axial composite conductor of a kind of enameled sheet wire as claimed in claim 1 is characterized in that
(1) the sclerosis bare copper flat wire is 300N/mm by the bare copper flat wire hardness of mechanical press
2About, through the unwrapping wire apparatus for bending, make lead hardness reach 350-400N/mm
2
(2) through the lead of sclerosis, enter and lead softly on the softening furnace, the softening furnace temperature is controlled to be: go up furnace temperature 345-370 ℃, following furnace temperature 245-275 ℃, make lead hardness softening to 150-180N/mm
2
(3) then through the guide wheel under the closed tank, cooling, cleaning, enter japanning lacquer cylinder again to the japanning mould, paint, enter the baking line oven then and cure, its baking line oven temperature is controlled to be: inlet temperature 130-150 ℃, following furnace temperature 290-310 ℃, middle furnace temperature 380-420 ℃, last furnace temperature 330-350 ℃, cure through repeatedly circulating, outlet then is through traction wheel, to the treucher take-up;
(4) for lead, on equipment, make up through enamel-cover: earlier with solid wire bag paper, the alignment smoothing, arranged side by side, spacing along narrow limit then, full packaged insulation materials paper, take-up.
4, a kind of unwrapping wire apparatus for bending that is used for the described axial composite conductor making of claim 3, it is characterized in that constituting by two rows combination guide wheel, last row's guide wheel (5) is fixed on the wheel frame (7), following row's guide wheel (6) intersects with the position of last row's guide wheel (5), be fixed on the portable plate (8), be provided with between the bottom of portable plate (8) and wheel frame (7) and regulate bolt (9), regulate the position that bolt scalable upper and lower two is arranged between the guide wheels by this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145309 CN1424731A (en) | 2002-11-21 | 2002-11-21 | Longitudinal assembled enamel flat wires and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145309 CN1424731A (en) | 2002-11-21 | 2002-11-21 | Longitudinal assembled enamel flat wires and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1424731A true CN1424731A (en) | 2003-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02145309 Pending CN1424731A (en) | 2002-11-21 | 2002-11-21 | Longitudinal assembled enamel flat wires and manufacture thereof |
Country Status (1)
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| CN (1) | CN1424731A (en) |
Cited By (4)
| 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 |
| CN102097165A (en) * | 2011-03-30 | 2011-06-15 | 无锡统力电工有限公司 | Enamel bonded paper covered composite flat copper wire for transformer of plateau traction locomotive |
| CN102324282A (en) * | 2011-08-15 | 2012-01-18 | 江苏中容电气有限公司 | Production technology for transposition aluminum enameled composite conductor |
| CN102610316A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Flat cable |
-
2002
- 2002-11-21 CN CN 02145309 patent/CN1424731A/en active Pending
Cited By (4)
| 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 |
| CN102097165A (en) * | 2011-03-30 | 2011-06-15 | 无锡统力电工有限公司 | Enamel bonded paper covered composite flat copper wire for transformer of plateau traction locomotive |
| CN102324282A (en) * | 2011-08-15 | 2012-01-18 | 江苏中容电气有限公司 | Production technology for transposition aluminum enameled composite conductor |
| CN102610316A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Flat cable |
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| WD01 | Invention patent application deemed withdrawn after publication |