CN203150204U - Polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film - Google Patents
Polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film Download PDFInfo
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- CN203150204U CN203150204U CN 201320034719 CN201320034719U CN203150204U CN 203150204 U CN203150204 U CN 203150204U CN 201320034719 CN201320034719 CN 201320034719 CN 201320034719 U CN201320034719 U CN 201320034719U CN 203150204 U CN203150204 U CN 203150204U
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Abstract
The utility model relates to field of insulating a conductor or a cable with a coating composition and especially relates to a polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film. The technical scheme adopted in the utility model is as follows: the enameled flat copper wire comprises a conductor (1) having a square or rectangular section and a composite paint film layer coated on the outer surface of the conductor (1); the small flat wire is characterized in that the composite paint film layer is composed of priming paint (2) and finishing paint (3); and the priming paint (2) is coated on the outer surface of the conductor (1), and the finishing paint (3) is coated on the outer surface of the priming paint (2). The enameled flat copper wire has the following beneficial effects: 1) due to the adoption of super-adhesiveness polyamide-imide resin of the DuPont Company as a base layer and through precise mold coating, the polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film has excellent adhesiveness, can resist harsh stretching and bending and is applicable to deteriorating environments such as high temperature and overload and applicable to motors and electrical products requiring an ultra-long service life.
Description
Technical field
The present invention relates to use coating composition to make the field of conductor or cable insulation, especially belong to a kind of Du Pont double-deck paint film polyamidoimide enameling copper strap wire.
Background technology
Enamelled wire is a principal item of winding wire, is made up of conductor and insulating barrier two parts, and bare wire passes through the mould japanning again behind cold rolling, drawing, annealing softening, cures to form.Along with the development of motor technology, in applications such as wind-driven generator, traction electric machine, motor of electric motor car, high-power transformers, need anti-big electric current, high voltage bearing special varnish envelope curve.The enameled sheet wire that prior art is produced is difficult to satisfy the requirement of this respect, often adopts wrapped mode to increase insulation thickness in addition, and such as adopting the wrapped mode of combined mica band to improve voltage endurance capability, the mode that perhaps increases turn-to-turn insulation in the coiling process realizes.This implementation is because the thickness of insulating layer increase, be prone to cracking through after the bending, the insulating capacity in knee descends greatly, also brings problems such as winding volume increase, poor radiation, processing technology complexity in addition, thereby brings product cost and integrity problem.
Summary of the invention
The object of the present invention is to provide a kind of Du Pont double-deck paint film polyamidoimide enameling copper strap wire, make enameled sheet wire at aspects such as counter-bending ability, withstand voltage properties, heat resistances lifting be arranged all.
The technical solution used in the present invention is: it comprises cross sectional shape is square or rectangular conductor (1) and the composite paint film layer that coats at conductor (1) outer surface, and it is characterized in that: described composite paint film layer is made up of priming paint (2) and finish paint (3); And described priming paint (2) is the outer surface that is coated on conductor (1), and described finish paint (3) is the outer surface that is coated on priming paint (2).
Beneficial effect of the present invention is: 1, the present invention is basic unit owing to having adopted the superpower adhesive force polyamide-imide resin of E.I.Du Pont Company, accurately apply through mould, has good tack, can resist harsh stretching and bending, applicable under the deterioration environment such as high temperature, overload and motor, the electric equipment products of extra long life requirement are arranged.2, compound enameled sheet wire withstand voltage properties of the present invention significantly improves, and puncture voltage on average is higher than more than 2 times of GB, carries out not ftractureing after the bending of 2 times of broadside sizes along narrow limit.
Description of drawings
Fig. 1 is principle of the invention figure
Wherein, 1, conductor 2, priming paint 3, finish paint.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Be illustrated in figure 1 as principle of the invention figure, it is square or rectangular conductor (1) and the composite paint film layer that coats at conductor (1) outer surface that the present invention comprises cross sectional shape, and it is characterized in that: described composite paint film layer is made up of priming paint (2) and finish paint (3); And described priming paint (2) is the outer surface that is coated on conductor (1), and described finish paint (3) is the outer surface that is coated on priming paint (2).
The thickness of the priming paint described in the present invention (2) is the 5%-10% of composite paint film layer thickness; The thickness of described finish paint (3) is the 90%-95% of composite paint film layer thickness.
The sectional area of the conductor described in the present invention (1) is preferably 1.463 square millimeters to 88.74 square millimeters.
The material of the priming paint described in the present invention (2) is the polyamide-imide resin lacquer of Du Pont-voltatex 9127 for E.I.Du Pont Company's model; The material of described finish paint (3) is the polyamide-imide resin lacquer of Du Pont-voltatex 8327 for E.I.Du Pont Company's model.
Du Pont of the present invention enameled sheet wire, roll by the conductor in the middle of the enamelled wire is adopted-La-annealing handles, and makes conductor size reach high accuracy, reduces the surface of conductors defective, by mold painting, cures, and cools off, and rolling is finished.Mold painting has accurately been controlled the apparent size of product, and whole technology controlled by computer, has guaranteed the consistency of the performance of product.
Claims (4)
1. the double-deck paint film polyamidoimide of Du Pont enameling copper strap wire, the composite paint film layer that comprises cross sectional shape and be square or rectangular conductor (1) and coat at conductor (1) outer surface, it is characterized in that: described composite paint film layer is made up of priming paint (2) and finish paint (3); And described priming paint (2) is the outer surface that is coated on conductor (1), and described finish paint (3) is the outer surface that is coated on priming paint (2).
2. the double-deck paint film polyamidoimide of Du Pont according to claim 1 enameling copper strap wire, it is characterized in that: the thickness of described priming paint (2) is the 5%-10% of composite paint film layer thickness; The thickness of described finish paint (3) is the 90-95% of composite paint film layer thickness.
3. the double-deck paint film polyamidoimide of Du Pont according to claim 1 enameling copper strap wire, it is characterized in that: the sectional area of described conductor (1) is 1.463 square millimeters to 88.74 square millimeters.
4. the double-deck paint film polyamidoimide of Du Pont according to claim 1 enameling copper strap wire, it is characterized in that: the material of described priming paint (2) is the polyamide-imide resin lacquer of Du Pont-voltatex 9127 for E.I.Du Pont Company's model; The material of described finish paint (3) is Du Pont-voltatex 8327 polyamide-imide resins lacquers for E.I.Du Pont Company's model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034719 CN203150204U (en) | 2013-01-23 | 2013-01-23 | Polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034719 CN203150204U (en) | 2013-01-23 | 2013-01-23 | Polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203150204U true CN203150204U (en) | 2013-08-21 |
Family
ID=48977713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320034719 Expired - Fee Related CN203150204U (en) | 2013-01-23 | 2013-01-23 | Polyamide-imide enameled flat copper wire coated with DuPont double-layer paint film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203150204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062894A (en) * | 2014-03-12 | 2016-10-26 | 古河电气工业株式会社 | Flat-type insulated wire, coil, and electric/electronic equipment |
-
2013
- 2013-01-23 CN CN 201320034719 patent/CN203150204U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062894A (en) * | 2014-03-12 | 2016-10-26 | 古河电气工业株式会社 | Flat-type insulated wire, coil, and electric/electronic equipment |
| US10109389B2 (en) | 2014-03-12 | 2018-10-23 | Furukawa Electric Co., Ltd. | Rectangular insulated wire, coil and electrical and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150123 |
|
| EXPY | Termination of patent right or utility model |