CN101650986A - Modified polyurethane flat enamelled copper wire and method of producing same - Google Patents
Modified polyurethane flat enamelled copper wire and method of producing same Download PDFInfo
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- CN101650986A CN101650986A CN200910032268A CN200910032268A CN101650986A CN 101650986 A CN101650986 A CN 101650986A CN 200910032268 A CN200910032268 A CN 200910032268A CN 200910032268 A CN200910032268 A CN 200910032268A CN 101650986 A CN101650986 A CN 101650986A
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Abstract
The invention provides a modified polyurethane flat enamelled copper wire which can well resist high frequency and humidity, has high mechanical strength and is easy to tint and suitable for producinglarge-size wires. The modified polyurethane flat enamelled copper wire comprises a flat bare copper wire and is characterized in that the flat bare copper wire is externally coated with modified polyurethane paint. The modified polyurethane flat enamelled copper wire is produced according to the following steps: the raw material of electrolytic copper is used to produce an oxygen-free copper rod;the oxygen-free copper rod is processed into the flat bare copper wire; the flat bare copper wire is polished and then is annealed under the protection of the steam; and the flat bare copper wire iscoated and finally baked.
Description
(1) technical field
The present invention relates to the enameling copper strap wire field, be specially a kind of polyurethane flat enamelled copper wire of improvement.
(2) background technology
Be widely used at present on household electrical appliances, precision instrument, telecommunication and the instrument the polyurethane enamelling cuprum round line its adopt conventional polyurethanes lacquer, has straight weldering, anti-high frequency performance is good, easy coloring, anti-moisture performance is good, but its mechanical strength and heat resistance are poor, and it is also relatively poor to produce the pliability and the tack of big gauge wire, so the specification great majority of this production are the following small dimension circle lines of Ф 2.00mm; And the take all of enamelling process of line of polyurethane paint adopted the japanning of felt method in the past, and its shortcoming is that line is difficult for reaching consistent with film thickness between the line; Can not use full-bodied insulating varnish, it is many to consume solvent, and the japanning felt is subjected to down the fire door high-temperature baking, and felt is worn out reduction of service life, and operative skill requires high, and the product quality consistency is poor; Still there is not polyurethane flat enamelled copper wire in the market.
(3) summary of the invention
At the problems referred to above, the invention provides a kind of polyurethane flat enamelled copper wire of improvement, it not only has good anti-high frequency performance, easy coloring performance and anti-moisture performance, its mechanical strength height, be fit to produce big gauge wire, for this reason, sea of the present invention provides a kind of processing method of polyurethane flat enamelled copper wire of improvement.
A kind of polyurethane flat enamelled copper wire of improvement, it comprises bare copper flat wire, it is characterized in that: described bare copper flat wire outside scribbles modified polyurethane paint.
A kind of processing method of polyurethane flat enamelled copper wire of improvement; produce oxygen-free copper bar with electrolytic copper material; then described oxygen-free copper bar is processed into bare copper flat wire; again described bare copper flat wire is carried out polishing; and use the steam protection annealing process; then paint, baking at last, it is characterized in that: the lacquer that is coated with is a modified polyurethane paint.
It is further characterized in that: described enamelling process adopts the die methods japanning, its mould of will painting is connected in the japanning mould and sticks, it is all around stuck at the japanning mould and leaves flying height, japanning mould fork is installed on the mould fork fixed mount, lead is from bottom to top through entering the nib of japanning mould with high viscosity lacquer liquid behind the lacquer cylinder, exert pressure around giving nib, because around the nib is the inclined-plane horn mouth, pressure is with producing transverse component, when downward longitudinal force during greater than mould gravity, mould just in flying height on float, be pressed in around the die orifice with advancing transverse component, when nib and lead decentraction, this transverse pressure can make mould move, till nib and lead are concentric.
It further is characterised in that: described oxygen-free copper bar is processed into bare copper flat wire, adopts continuous extruder production; After described oxygen-free copper bar was processed into bare copper flat wire, the utilization polissoir carried out polishing to described bare copper flat wire; Adopt the water vapour protection to carry out during annealing.
The present invention replaces conventional polyurethanes lacquer in the past with modified polyurethane paint, has improved the paint film tack, has improved mechanical strength; And modified polyurethane paint can adopt the die methods enamelling process, it is simple to operate, can guarantee the uniformity consistency of film thickness, satisfy the requirement of high-rating generator to the enameled sheet wire size, the use amount of solvent is little, can reach the purpose of energy-saving and emission-reduction, the useful life of mould is also higher, has saved production cost.
(4) description of drawings
Fig. 1 is the polyurethane flat enamelled copper wire cross-sectional view of the present invention's improvement;
The polyurethane flat enamelled copper wire processing mold method japanning schematic diagram of Fig. 2 the present invention improvement;
Fig. 3 is that the A of Fig. 2 is to schematic diagram;
Fig. 4 is the polyurethane flat enamelled copper wire processing process figure of the present invention's improvement.
(5) embodiment
See Fig. 1, the polyurethane flat enamelled copper wire of a kind of improvement of the present invention, it comprises bare copper flat wire 1, bare copper flat wire 1 outside scribbles modified polyurethane paint 2.
Specifically describe the polyurethane flat enamelled copper wire processing process of the improvement of the present invention below: see Fig. 4; produce oxygen-free copper bar with electrolytic copper material by up-drawing method; then oxygen-free copper bar is made bare copper flat wire by continuously extruded machine work and by polishing; water steam protection annealing again; then paint, at last baking.Wherein, the die methods enamelling process is adopted in japanning, see Fig. 2, Fig. 3, japanning mould 4 is connected on the japanning mould fork 5, it leaves flying height all around on japanning mould fork 5, japanning mould fork 5 is installed on the mould fork fixed mount 3, lead 6 is from bottom to top through entering the nib of japanning mould 4 with high viscosity lacquer liquid behind the lacquer cylinder 7, exert pressure around giving nib, owing to be the inclined-plane horn mouth around the nib, pressure is with the generation transverse component, when downward longitudinal force during greater than mould gravity, mould just in flying height on float, be pressed in around mould 4 nibs with advancing transverse component, when nib and lead decentraction, this transverse pressure can make mould move, till nib and lead are concentric, guaranteed the uniformity consistency of paint film.
The polyurethane flat enamelled copper wire of the present invention's improvement can be according to the requirement of temperature resistant grade requirement and specification size, can produce the polyurethane flat enamelled copper wire of corresponding grade, as 130 grades of polyurethane flat enamelled copper wires, 155 grades of polyurethane flat enamelled copper wires and 180 grades of polyurethane flat enamelled copper wires.
Claims (6)
1, a kind of polyurethane flat enamelled copper wire of improvement, it comprises bare copper flat wire, it is characterized in that: described bare copper flat wire outside scribbles modified polyurethane paint.
2, a kind of processing method of polyurethane flat enamelled copper wire of improvement; produce oxygen-free copper bar with electrolytic copper material; then described oxygen-free copper bar is processed into bare copper flat wire; again described bare copper flat wire is carried out polishing; and use the steam protection annealing process; then paint, baking at last, it is characterized in that: the lacquer that is coated with is a modified polyurethane paint.
3, processing method according to the polyurethane flat enamelled copper wire of the described a kind of improvement of claim 2, it is characterized in that: described enamelling process adopts the die methods japanning, its mould of will painting is connected in the japanning mould and sticks, it is all around stuck at the japanning mould and leaves flying height, japanning mould fork is installed on the mould fork fixed mount, lead is from bottom to top through entering the nib of japanning mould with high viscosity lacquer liquid behind the lacquer cylinder, exert pressure around giving nib, because around the nib is the inclined-plane horn mouth, pressure is with producing transverse component, when downward longitudinal force during greater than mould gravity, mould just in flying height on float, be pressed in around the die orifice with advancing transverse component, when nib and lead decentraction, this transverse pressure can make mould move, till nib and lead are concentric.
4, according to the processing method of the polyurethane flat enamelled copper wire of the described a kind of improvement of claim 3, it is characterized in that: described oxygen-free copper bar is processed into bare copper flat wire, adopts continuous extruder production.
5, according to the processing method of the polyurethane flat enamelled copper wire of the described a kind of improvement of claim 4, it is characterized in that: after described oxygen-free copper bar was processed into bare copper flat wire, the utilization polissoir carried out polishing to described bare copper flat wire.
6, according to the processing method of the polyurethane flat enamelled copper wire of the described a kind of improvement of claim 5, it is characterized in that: adopt the water vapour protection to carry out during annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100322682A CN101650986B (en) | 2009-06-09 | 2009-06-09 | Modified polyurethane flat enamelled copper wire and method of producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100322682A CN101650986B (en) | 2009-06-09 | 2009-06-09 | Modified polyurethane flat enamelled copper wire and method of producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101650986A true CN101650986A (en) | 2010-02-17 |
| CN101650986B CN101650986B (en) | 2011-12-14 |
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| CN2009100322682A Active CN101650986B (en) | 2009-06-09 | 2009-06-09 | Modified polyurethane flat enamelled copper wire and method of producing same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648599A (en) * | 2016-01-19 | 2016-06-08 | 涟水天宫云锦织造有限公司 | Preparation method of anti-oxidative brocade gold and silver threads |
| CN106098191A (en) * | 2016-06-23 | 2016-11-09 | 苏州市新的电工有限公司 | A kind of directly welded enameling copper strap wire and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869428A (en) * | 1969-05-14 | 1975-03-04 | Schweizerische Isolawerke | Enamel composition for the manufacture of solderable enameled wires |
| CN1187421C (en) * | 2002-07-16 | 2005-02-02 | 南京大学 | H-grade low-temp. beading polyurethane paint wire-covering paint |
| CN1635038A (en) * | 2003-12-25 | 2005-07-06 | 左晓兵 | Method for preparing novel F level high speed polyurethane enamelled wire paint |
| CN101192460A (en) * | 2006-11-23 | 2008-06-04 | 浙江宏磊铜业股份有限公司 | Stranded special polyester imines enameling round wires production process |
| CN201435241Y (en) * | 2009-06-09 | 2010-03-31 | 无锡锡洲电磁线有限公司 | Improved polyurethane enameled flat copper wire |
-
2009
- 2009-06-09 CN CN2009100322682A patent/CN101650986B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648599A (en) * | 2016-01-19 | 2016-06-08 | 涟水天宫云锦织造有限公司 | Preparation method of anti-oxidative brocade gold and silver threads |
| CN106098191A (en) * | 2016-06-23 | 2016-11-09 | 苏州市新的电工有限公司 | A kind of directly welded enameling copper strap wire and preparation method thereof |
| CN106098191B (en) * | 2016-06-23 | 2018-01-05 | 苏州市新的电工有限公司 | A kind of directly welded enameling copper strap wire and preparation method thereof |
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| CN101650986B (en) | 2011-12-14 |
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Application publication date: 20100217 Assignee: Ezhou self strengthening electrical material Co., Ltd. Assignor: Wuxi Xizhou Magnet Wires Co., Ltd. Contract record no.: 2013420000096 Denomination of invention: Modified polyurethane flat enamelled copper wire and method of producing same Granted publication date: 20111214 License type: Exclusive License Record date: 20130723 |
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