CN101770831A - High-temperature resistant dual-layer insulating seamless lapped wire - Google Patents
High-temperature resistant dual-layer insulating seamless lapped wire Download PDFInfo
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- CN101770831A CN101770831A CN201010022857A CN201010022857A CN101770831A CN 101770831 A CN101770831 A CN 101770831A CN 201010022857 A CN201010022857 A CN 201010022857A CN 201010022857 A CN201010022857 A CN 201010022857A CN 101770831 A CN101770831 A CN 101770831A
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Abstract
The invention relates to the field of a wire and a cable, in particular to a high-temperature resistant thin insulating wire used for power and signal transmission in the field of aviation. The cross section of a high-temperature resistant dual-layer insulating seamless lapped wire respectively comprises a twisted copper conductor, an inner insulating layer of a lapped polyimide film and an outer insulating layer of a lapped Teflon film from inside to outside. Compared with the traditional insulating wire for aviation, the wire in the invention has the characteristics of high-temperature resistance, light weight and low cost.
Description
Technical field:
The present invention relates to the electric wire field, in particular for the high temperature resistant thin insulating electric wire of transferring electric power in the aviation field and signal.
Background technology:
Along with the continuous propelling of global integration process, various countries' aviation industry develops rapidly, and the development of homemade big aircraft has proposed new requirement to domestic air mail with insulated electric conductor.Aviation not only will possess characteristics such as high temperature resistant, high voltage withstanding with insulated electric conductor, and requires light weight, humidity water-disintegrable, can adapt to the requirement of long-time running under the complex work environment.
At present, the production technology that is used for the insulated electric conductor of aviation field mainly contains following several technical approach: 1. exotic material extruded insulation electric wire, as: high-temperature-resisting silicon rubber insulated cable (CN201111978), polyether sulfone insulated electric conductor (CN2840274), high temperature resistant PEEK insulated electric conductor (CN201281977); 2. cross-linking radiation ethylene-tetrafluoroethylene extruded insulation electric wire (CN2745189) (CN1866411); 3. the wrapped electric wire of polytetrafluoroethylene film (CN 201274184).
Above-mentioned three class electric wires have the application of different range in aviation field, but certain limitation is all arranged:
1. the insulating exruded difficulty of silicon rubber thin-walled be difficult to control the weight of electric wire, and silicon rubber vacuum gas permeability is poor, and mechanical strength is relatively poor, the uncomfortable cooperation barrier of anti-the elemental oxygen; Its UV resistant performance of polyether sulfone insulated electric conductor is relatively poor; The insulating material fancy price of PEEK insulated electric conductor has limited its extensive use in aviation field.
2. cross-linking radiation ethylene-tetrafluoroethylene extruded insulation electric wire requires than higher for raw material, prices of raw and semifnished materials costliness, and the irradiation apparatus output investment ratio is bigger.
3. though the wrapped electric wire of polytetrafluoroethylene film is controlled the weight of electric wire easily, but, polytetrafluoroethylene film is directly wrapped at conductive surface, and bonding is not tight between the conductor, be difficult to control the defective that produces in the wrapped process, easily produce the slit at the place of putting up, cause the performance of electric wire to reduce, corona-resistance property is relatively poor relatively.
So a kind of development that can satisfy the electric wire of aviation field application new demand must be carried out new design and improvement on the basis of original technology.
Summary of the invention:
For solving the problem that above-mentioned prior art exists, the invention provides a kind of high-temperature resistant dual-layer insulating seamless lapped wire, be particularly useful for transferring electric power and signal in the aviation field, but be not limited to this.
A kind of cross section structure of high-temperature resistant dual-layer insulating seamless lapped wire is respectively twisted copper conductors from inside to outside, wrapped polyimide film inner insulating layer, wrapped polytetrafluoroethylene film external insulation layer.
Wherein, twisted copper conductors is any one of naked copper core, tin-coated copper core, silver-plated copper core, nickel-clad copper core, tin-coated copper alloy, silver-plated copper alloy or nickel-clad copper alloy, preferred silver-plated copper core or nickel-clad copper core.
Wherein inner insulating layer adopts polyimide film, and single or double is coated with the perfluoroethylene-propylene emulsion or modified polyimide glue at high temperature has tack, and wrapped film on conductor forms tubulose integral body, reduces void defects; External insulation layer adopts polytetrafluoroethylene film, can be easy to be bonded to one with the polyimide film coating, through the more piece sintering furnace progressively behind the temperature-rising method sintering, can not come off, stick up skin when bending or coiling, control the rate of putting up well, make high-temperature resistant dual-layer insulating seamless lapped wire of the present invention.
Polyimide film is to be base material with the polyimides, be coated with perfluoroethylene-propylene emulsion or modified polyimide glue at its single or double, make composite band, the insulation of motor windings such as Chang Zuowei high-voltage motor, locomotive traction motor, deep well submersible pump motor and metallurgical motor.With polyimide film as aviation high-temperature resistant dual-layer insulating seamless lapped wire inner insulating layer, coating on the film can surround on the conductor, after entering the high temperature furnace sintering, film is adjacent to because of shrinking with conductor, and wrapped film formation tubulose integral body on conductor.
Because polyimides self easy hydrolysis under the environment of humidity, adopt polytetrafluoroethylene film wrapped outside the polyhybrid indulated wire core as external insulation layer, having completely cut off polyimide layer contacts with the direct of steam, under the prerequisite that guarantees the electric wire temperature resistant grade, improved the job stability of electric wire in moist cloud layer simultaneously.
According to the size of wire conductor diameter, the inner insulating layer polyimide film width of the electric wire among the present invention is 3mm-50mm, and thickness is 0.02mm-0.5mm.
According to the size of interior insulated wire cores diameter, the external insulation layer polytetrafluoroethylene film width of the electric wire among the present invention is 3mm-50mm, and thickness is 0.03mm-0.8mm.
The present invention adopts polyimide film and polytetrafluoroethylene film to form the two-layer compound insulation, adopts the wrapped method of sintering afterwards, controls the wrapped rate of putting up well, and development and Application is in the seamless lapped insulation electric wire of aviation field novel thin film.
The technological process of electric wire of the present invention is conventional method:
A) the wrapped and sintering of polyimide film:
B) the wrapped and sintering of polytetrafluoroethylene film:
The stranded mode of the conductor of the electric wire among the present invention is that regular (concentric layer) stranded or informal (bunch) is stranded.
Electric wire inner insulating layer polyimide film wrapping angle among the present invention can be 20 °-70 ° according to the width size of film, preferentially select 30 °-50 ° for use, sintering furnace length 1m-5m, can adopt more piece sintering furnace co-sintered, stove joint number 1 joint-5 joints, every joint sintering furnace temperature is 80 ℃-400 ℃, progressively raises with take-up direction temperature, and take-up speed can be 1-10m/min according to wrapped rate size, film thickness size and the sintering furnace furnace temperature height put up.
Electric wire external insulation layer polytetrafluoroethylene film wrapping angle among the present invention can be 25 °-70 ° according to the width size of film, preferentially select 35 °-50 ° for use, sintering furnace length 1m-5m, can adopt more piece sintering furnace co-sintered, stove joint number 1 joint-5 joints, every joint sintering furnace temperature is 100 ℃-430 ℃, progressively raises with take-up direction temperature, and take-up speed can be 1-10m/min according to wrapped rate size, film thickness size and the sintering furnace furnace temperature height put up.
The sintering process of the electric wire among the present invention can adopt high temperature sintering and starvation high temperature sintering under the air conditions; the preferential starvation high temperature sintering mode that adopts; starvation adopts inert gas shielding; spendable inert gas is nitrogen, carbon dioxide, helium, preferentially uses nitrogen and carbon dioxide.
Description of drawings
The structural representation of Fig. 1 high-temperature resistant dual-layer insulating seamless lapped wire of the present invention.Wherein, 1-twisted copper conductors; The 2-polyimide film; The 3-polytetrafluoroethylene film.
Embodiment:
The present invention will be further described below in conjunction with embodiment.
As shown in Figure 1, the structural representation of high-temperature resistant dual-layer insulating seamless lapped wire of the present invention.Wherein, 1 is twisted copper conductors; 2 is polyimide film; 3 is polytetrafluoroethylene film.
Embodiment one:
The wrapped high temperature sintering of the wrapped high temperature sintering polytetrafluoroethylene film of regular twisted copper conductors polyimide film.
Embodiment two:
The wrapped high temperature sintering of the wrapped high temperature sintering polytetrafluoroethylene film of informal twisted copper conductors polyimide film.
Check the apparent of embodiment one and embodiment two by modes such as hand touch, perusals, do not find obvious gaps; By adjusting wrapping angle, the theoretical wrapped rate of putting up of embodiment one and embodiment two is about 50%; The flexing test result: when winding diameter was 1D, embodiment one and embodiment two did not all have the skin of sticking up, do not have and split.
Compare with insulated electric conductor with traditional aviation, electric wire of the present invention has concurrently high temperature resistant and characteristics light weight:
| Rated temperature (℃) | Quality (kg/km) | |
| Crosslinked ETFE insulated electric conductor | ??200 | ??4.73 |
| The PTFE insulated electric conductor | ??260 | ??5.10 |
| Double hyer insulation electric wire of the present invention | ??260 | ??4.21 |
Annotate: above wire gauge is AWG 22#
Embodiment three:
According to the variation of conductor diameter, can change the thickness of inner insulating layer polyimide film and the wrapped polytetrafluoroethylene film of external insulation layer, wrapping angle, parameters such as width are put up rate with control.As following table:
Compare with insulated electric conductor with other aviations, electric wire of the present invention has cheap advantage on cost.With the AWG22# wire gauge is example, and its manufacturing cost of electric wire of the present invention is about 80% of teflon insulated wire, 30% of PEEK insulated electric conductor, and 30% of cross-linking radiation ethylene-tetrafluoroethylene insulated wire possesses stronger market competition advantage.
Though above-mentioned specific embodiment has been described the present invention, this description does not mean that and is construed as limiting.After the reference description of the invention,, obviously can make various corrections to the disclosed embodiments for person skilled in the art.Various similar correction all falls within the claim scope of the present invention.
Claims (5)
1. a high-temperature resistant dual-layer insulating seamless lapped wire is characterized in that, the cross section structure of electric wire is respectively twisted copper conductors from inside to outside, wrapped polyimide film inner insulating layer, wrapped polytetrafluoroethylene film external insulation layer.
2. high-temperature resistant dual-layer insulating seamless lapped wire according to claim 1, it is characterized in that described twisted copper conductors is any one of naked copper core, tin-coated copper core, silver-plated copper core, nickel-clad copper core, tin-coated copper alloy, silver-plated copper alloy or nickel-clad copper alloy.
3. high-temperature resistant dual-layer insulating seamless lapped wire according to claim 1 is characterized in that, according to the size of electric wire twisted copper conductors diameter, the inner insulating layer polyimide film width of electric wire is 3mm-50mm, and thickness is 0.02mm-0.5mm;
According to the size of interior insulated wire cores diameter, the external insulation layer polytetrafluoroethylene film width of electric wire is 3mm-50mm, and thickness is 0.03mm-0.8mm.
4. the production method of high-temperature resistant dual-layer insulating seamless lapped wire according to claim 1, adopt conventional production method, it is characterized in that, wherein inner insulating layer polyimide film wrapping angle is 20 °-70 °, sintering furnace length 1m-5m, stove joint number 1 joint-5 joints, every joint sintering furnace temperature is 80 ℃-400 ℃, progressively raise with take-up direction temperature, take-up speed is 1-10m/min; External insulation layer polytetrafluoroethylene film wrapping angle is 25 °-70 °, sintering furnace length 1m-5m, and stove joint number 1 joint-5 joints, every joint sintering furnace temperature is 100 ℃-430 ℃, progressively raises with take-up direction temperature, take-up speed is 1-10m/min.
5. the production method of high-temperature resistant dual-layer insulating seamless lapped wire according to claim 4; it is characterized in that; adopt starvation high temperature sintering mode, starvation adopts inert gas shielding, and employed inert gas is nitrogen, carbon dioxide or helium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010022857A CN101770831A (en) | 2010-01-15 | 2010-01-15 | High-temperature resistant dual-layer insulating seamless lapped wire |
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| CN201010022857A CN101770831A (en) | 2010-01-15 | 2010-01-15 | High-temperature resistant dual-layer insulating seamless lapped wire |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117677A (en) * | 2011-03-11 | 2011-07-06 | 南京全信传输科技股份有限公司 | High-temperature resistance light low voltage differential signaling (LVDS) data bus cable and preparation method thereof |
| CN102347113A (en) * | 2011-07-25 | 2012-02-08 | 浙江铁富隆线缆有限公司 | Preparation method of film lapped wire and use equipment thereof |
| CN103021575A (en) * | 2013-01-05 | 2013-04-03 | 南京全信传输科技股份有限公司 | Production method of aerospace radiation-resistant cable |
| CN103390449A (en) * | 2013-07-25 | 2013-11-13 | 广州凯恒特种电线电缆有限公司 | Heat-resistant seamless lapped aviation cable and preparation method thereof |
| CN103632765A (en) * | 2013-11-18 | 2014-03-12 | 娄底市中凯机电设备有限公司 | High-temperature resistant electronic wire |
| CN103644125A (en) * | 2012-04-20 | 2014-03-19 | 颠峰Esp有限责任公司 | System and method for enhanced magnet wire insulation |
| WO2014209737A1 (en) * | 2013-06-25 | 2014-12-31 | Ge Oil & Gas Esp, Inc. | High temperature downhole motors with advanced polyimide insulation materials |
| CN104337562A (en) * | 2014-10-10 | 2015-02-11 | 江苏仁鸿医疗科技有限公司 | Special double-pole embedded cap directional microelectrode for invivo lithotriptor |
| CN104851485A (en) * | 2015-05-21 | 2015-08-19 | 苏州贯龙电磁线股份有限公司 | Sealed type water-resistant electromagnetic wire |
| CN105185438A (en) * | 2015-09-29 | 2015-12-23 | 上海市凌桥环保设备厂有限公司 | Cable, preparation method and equipment thereof |
| CN106057362A (en) * | 2016-08-01 | 2016-10-26 | 合肥佳瑞林电子技术有限公司 | Wire production process |
| CN107910107A (en) * | 2017-11-03 | 2018-04-13 | 芜湖航天特种电缆厂股份有限公司 | Aerospace high-temperature resistant super-soft electric wire and preparation method thereof |
| CN107945995A (en) * | 2017-11-26 | 2018-04-20 | 安徽宏源特种电缆股份有限公司 | A kind of seamless winding lead of polyimide composite insulated |
| CN109599221A (en) * | 2018-12-06 | 2019-04-09 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of aerospace multi-channel high-speed transfer bus cable and its manufacturing method |
| CN114937529A (en) * | 2022-07-08 | 2022-08-23 | 南京全信传输科技股份有限公司 | High-voltage-resistant wire and cable for aerospace and preparation method thereof |
-
2010
- 2010-01-15 CN CN201010022857A patent/CN101770831A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117677A (en) * | 2011-03-11 | 2011-07-06 | 南京全信传输科技股份有限公司 | High-temperature resistance light low voltage differential signaling (LVDS) data bus cable and preparation method thereof |
| CN102347113A (en) * | 2011-07-25 | 2012-02-08 | 浙江铁富隆线缆有限公司 | Preparation method of film lapped wire and use equipment thereof |
| CN103644125A (en) * | 2012-04-20 | 2014-03-19 | 颠峰Esp有限责任公司 | System and method for enhanced magnet wire insulation |
| CN103021575A (en) * | 2013-01-05 | 2013-04-03 | 南京全信传输科技股份有限公司 | Production method of aerospace radiation-resistant cable |
| WO2014209737A1 (en) * | 2013-06-25 | 2014-12-31 | Ge Oil & Gas Esp, Inc. | High temperature downhole motors with advanced polyimide insulation materials |
| CN103390449A (en) * | 2013-07-25 | 2013-11-13 | 广州凯恒特种电线电缆有限公司 | Heat-resistant seamless lapped aviation cable and preparation method thereof |
| CN103390449B (en) * | 2013-07-25 | 2016-04-27 | 广州凯恒特种电线电缆有限公司 | Seamless wrapped Aviation cable of a kind of high-temperature insulation and preparation method thereof |
| CN103632765B (en) * | 2013-11-18 | 2016-04-06 | 娄底市中凯机电设备有限公司 | A kind of high-temperature resistant electronic wire |
| CN103632765A (en) * | 2013-11-18 | 2014-03-12 | 娄底市中凯机电设备有限公司 | High-temperature resistant electronic wire |
| CN104337562A (en) * | 2014-10-10 | 2015-02-11 | 江苏仁鸿医疗科技有限公司 | Special double-pole embedded cap directional microelectrode for invivo lithotriptor |
| CN104851485A (en) * | 2015-05-21 | 2015-08-19 | 苏州贯龙电磁线股份有限公司 | Sealed type water-resistant electromagnetic wire |
| CN105185438A (en) * | 2015-09-29 | 2015-12-23 | 上海市凌桥环保设备厂有限公司 | Cable, preparation method and equipment thereof |
| CN106057362A (en) * | 2016-08-01 | 2016-10-26 | 合肥佳瑞林电子技术有限公司 | Wire production process |
| CN107910107A (en) * | 2017-11-03 | 2018-04-13 | 芜湖航天特种电缆厂股份有限公司 | Aerospace high-temperature resistant super-soft electric wire and preparation method thereof |
| CN107945995A (en) * | 2017-11-26 | 2018-04-20 | 安徽宏源特种电缆股份有限公司 | A kind of seamless winding lead of polyimide composite insulated |
| CN109599221A (en) * | 2018-12-06 | 2019-04-09 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of aerospace multi-channel high-speed transfer bus cable and its manufacturing method |
| CN114937529A (en) * | 2022-07-08 | 2022-08-23 | 南京全信传输科技股份有限公司 | High-voltage-resistant wire and cable for aerospace and preparation method thereof |
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Open date: 20100707 |