CN103646718A - Fiber composite core conductive wire for power transmission line - Google Patents
Fiber composite core conductive wire for power transmission line Download PDFInfo
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- CN103646718A CN103646718A CN201310672144.7A CN201310672144A CN103646718A CN 103646718 A CN103646718 A CN 103646718A CN 201310672144 A CN201310672144 A CN 201310672144A CN 103646718 A CN103646718 A CN 103646718A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
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- 238000005260 corrosion Methods 0.000 claims abstract description 14
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 10
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- 239000003431 cross linking reagent Substances 0.000 claims description 8
- 239000011152 fibreglass Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
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- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 125000004069 aziridinyl group Chemical group 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 claims description 2
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- 238000002360 preparation method Methods 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 12
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- Ropes Or Cables (AREA)
Abstract
The invention provides a fiber composite core conductive wire for a power transmission line. The conductive wire is formed by a fiber composite core, a coating layer and an outer layer stranded wires which are orderly arranged. The coating layer is a coating layer of one or more paint selected from the group comprising fluorocarbon resin paint, polyurea elastomer paint and polyurethane paint. The fiber composite core conductive wire for the power transmission line has the characteristics of wear resistance, corrosion resistance, heat moisture resistance, water vapor resistance and ultraviolet resistance, the coating layer protects the fiber composite core to be free of environmental corrosion and aluminium wire abrasion, the anti-aging performance of the fiber composite core is raised, the service life of the fiber composite core is effectively prolonged, and the safety and reliability of the fiber composite core conductive wire is raised.
Description
Technical field
The present invention relates to power transmission cable field, be specifically related to a kind of used for transmission line fiber composite core wire.
Background technology
China not only development of power-generating industry lags behind, the drawback of transmission of electricity industry also shows especially out, transmission line can't bear to bear the demand of the quick dilatation of transmission capacity, the power failure, the disconnection fault that due to overload, cause occur again and again, electric power transfer becomes electric power industry development " bottleneck ", various countries are all at the novel built on stilts used for transmission line wire of research, and to replace traditional steel reinforced aluminium conductor, fiber composite core wire arises at the historic moment thus.
Fiber composite wire is the traditional steel-core-aluminium hinge wire of the desirable replacement of current bulk of worldwide electricity power transmission and transformation system, aluminium Baogang wire, the new product of aluminium alloy conductor and import invar wire, the composite material core wire that the steel core of common steel reinforced aluminium conductor is made with fiber replaces, fiber composite wire compare with conventional wires have lightweight, coefficient of linear expansion is little, intensity is large, low line loss, sag is little, low arc drop, high temperature resistant, corrosion-resistant, with the advantage such as environment is affine, realized the energy-conservation of electric power transfer, Environment protection and safety, be known as a kind of novel energy-saving transmission pressure, be widely used in circuit capacity-increasing transformation and newly-built circuit.
Carbon fiber is a kind of hexagoinal lattice layer structure of graphite, is a kind of full black matrix material, and therefore, in electric heating application, the electric conversion efficiency showing is high.Under given conditions, high temperature is not oxidized, and load intensity and the mechanical strength of the electric current of unit are do not change.Only have in the world at present the U.S. and Japan to develop carbon-fibre wire, the output of Japanese Yi Jia carbon-fibre wire enterprise just accounts for 40% left and right, the world.
But on the one hand fiber composite core can be subject to the long term of ultraviolet light, steam, high temperature under arms under environment, resin material can be degraded, and causes composite core performance degradation; On the other hand, transmission line shakes under operating mode in wind for a long time, the special operation condition such as sometimes even can wave, vibrate or wave in process, composite core surface and aluminium stranded conductor can rub, and the result of friction makes composite core surface that even destruction of wearing and tearing occur, and causes composite core fail safe to decline.Therefore, be necessary compound core conducting wire to carry out wear-resisting and environmental corrosion resisting protection.
For example application number is CN201220142300.X, utility model name is called the utility application of " a kind of thermoplastic resin carbon fiber cable ", relate to a kind of thermoplastic resin carbon fiber cable, by the outer core of the outer glass fiber reinforced epoxy resin composite material covering of carbon-fibre reinforced epoxy resin composite material inner core, the protective coating that polytetrafluoroethylene floor or insulating material layer form is set between the trapezoidal aluminum conductor of core and ground floor outside glass fiber reinforced epoxy resin composite material, outside glass fiber reinforced epoxy resin composite material, core covers the trapezoidal aluminum conductor of ground floor outward, at the trapezoidal aluminum conductor of ground floor, cover the trapezoidal aluminum conductor of the second layer outward.Polytetrafluoroethylene floor or insulating material layer mainly make insulation completely between plug and aluminum steel, make not have contact potential difference between the two, make aluminum conductor avoid galvano-cautery.Can not well play wear-resisting and effect environmental corrosion resisting.
Summary of the invention
In order to overcome the above-mentioned defect of prior art, the present invention is directed to the used for transmission line fiber composite core wire fiber composite core problem with being subject to environmental corrosion easy to wear, a kind of used for transmission line fiber composite core wire is provided, in this used for transmission line fiber composite core wire manufacture process, adopt quick coating paint-on technique, at fiber composite wicking surface, form wear-resisting, environmental corrosion resisting coat.
For achieving the above object, the technical scheme that the present invention takes is:
A used for transmission line fiber composite core wire, wire is comprised of the fiber composite core setting gradually, coating and outer twisted wire, and coating is the coat that is selected from one or more coating in fluorocarbon resin coating, polyurea elastomer coating, polyurethane coating.
Further, fiber composite core is carbon fiber complex core or high-strength fiber glass composite core.
Further, high-strength fiber glass composite core is glass fiber reinforced epoxy resin coremaking.
Further, coating is individual layer, and thickness is 50～100 μ m.
Further, coating is multilayer, and thickness is 50～100 μ m.
Further, multilayer is corrosion resistant coating layer and wear-resistant paint layer from the inside to the outside, and corrosion resistant coating layer is fluorocarbon resin coating coat, and wear-resistant paint layer is polyurea elastomer coating coat or polyurethane coating coat.
Further, fluorocarbon resin coating comprises thermosetting fluoro carbon resin and crosslinking agent, and the cosegment of thermosetting fluoro carbon resin comprises chlorotrifluoroethylene, vinylacetate, tertiary ethylene carbonate, hydroxyalkyl alkene ether, and crosslinking agent is blocked isocyanate.
Further, polyurea elastomer coating comprises ending amino polyether resin, amine chainextender and MDI prepolymer.Polyurea elastomer coating selection spary coating type system.
Further, polyurethane coating is external crosslinking aqueous polyurethane coating, comprises polyurethane and crosslinking agent, and described crosslinking agent is aziridine.Aziridine is polyfunctional group aziridine.
Further, fiber composite core is cylindrical, and diameter is 5～10mm.
Further, coating is fast-curing paint, and curing temperature is 170～190 ℃, and be 1～4min curing time.
Another object of the present invention, for a kind of method of preparing used for transmission line fiber composite core wire is provided, comprises the steps:
1) impregnation: pretreated fibre bundle is under hauling machine traction, in flooding the abundant impregnating resin of glue groove:
In process, get rid of unnecessary resin and bubble;
2) hot curing moulding: the pultrusion of step 1 gained fibre bundle is gone out to the moulding of hot setting mold releasability, and temperature is 180～210 ℃, and be 30～90s curing time;
3) applying coating: the fiber composite core of hot curing moulding is cooling by coating unit coating coating fast;
Dope viscosity is 300～600cps, and coating layer thickness is 50～100 μ m; Coating is too thin to be easily worn, too thick easily be full of cracks in rapid curing process;
4) curing molding after: the fiber composite core that is coated with coating is solidified after hot setting case, and temperature is 160～200 ℃, and be 3～5min curing time; Match with composite core production line, select fast-curing paint, curing temperature 170-190 ℃, be 1-4min curing time;
5) in the outer twisted wire of fiber composite core outer cladding of rear curing molding.
Further, described in step 3 applying coating for selecting high pressure painting, hopper dip-coating or spread pen brushing method to apply.
Hopper dip-coating and spread pen brush that two kinds of method techniques are simple, cost is lower, and coating layer thickness uniformity is slightly poor;
High pressure painting, by controlling flow 20-50ml/min, regulates spray gun pressure 0.15-0.2MPa to control thickness and the compactness of coating;
Coating unit is nearly hermetically-sealed construction, and line inlet port and line outlet size is controlled and passed through for holding fiber composite core, and closely hermetically-sealed construction is conducive to prevent flying upward of coating in spraying process, can reduce paint waste.
Fiber composite core diameter is 5-10mm cylindrical structural, and coating unit possesses around fiber composite core spinfunction, has guaranteed face coat even thickness.
Because fiber composite core adopts pultrude process, coating procedure speed is identical with core pultrusion speed.
Fast-curing paint possesses wear-resisting and corrosion-resistant, also has good physical chemistry compatibility with fiber composite wicking surface, has guaranteed the bond strength of coating and fiber composite core.
Fluorocarbon resin, polyurethane coating be because its hydrophobicity is strong, and heat resistance ability is excellent, can be for acid rain or coastal long-term humidity, region transmission line that corrosivity is larger.
Polyurea elastomer coating is because resistance to wear is stronger, and can be used as wear-resistant coating, to be used in long-term wind-force larger, is easy to occur vibration and waves regional transmission line.
In order to guarantee the protection effect of coating, the resistance to wear of coating (1000g/1000r) is less than 90mg (GB/T1768-79 (89)), adhesion is greater than 3MP (GB/T5210-2006), and long-term heat resisting temperature is 160 ℃, wet-heat resisting good (QJ990.10-86).
Owing to having adopted technique scheme, compared with prior art, beneficial effect of the present invention comprises:
1. the curing of coatings speed of the fiber composite core wire in the present invention is fast, applies cost low.
2. wear-resisting, corrosion-resistant, the wet-heat resisting of the coating of the fiber composite core wire in the present invention, water-fast vapour, uvioresistant; protection fiber composite core is avoided environmental corrosion and aluminum steel wearing and tearing; improved fiber composite core ageing resistace; effectively extend the useful life of fiber composite core, improved the security reliability of fiber composite core wire.
3. the fiber composite core wire in the present invention has been avoided corroding between bimetallic.
4. the fiber composite core wire in the present invention provides higher current-carrying capacity, also effectively reduces engineering cost simultaneously.
5. the fiber composite core wire in the present invention has high strength core, reduces the quantity of cable rack, has reduced the height of cable rack, saves land used, reduces nonferrous metal resource consumption, contributes to construct safety, environmental protection, efficient economizing electric power transmission network.
6. the fiber composite core wire in the present invention is easy to rapid shaping, and cost is lower, barrier propterty good.
7. the coating of the fiber composite core wire in the present invention and fiber composite core surface bonding strength are high.
The coating of the fiber composite core wire in the present invention incrust with cracking.
9. the fiber composite core conductive line fabrication method floating coat coating unit in the present invention is nearly hermetically-sealed construction, line inlet port and line outlet size are controlled and are passed through for holding fiber composite core, nearly hermetically-sealed construction is conducive to prevent flying upward of coating in spraying process, can reduce paint waste.
10. in the fiber composite core conductive line fabrication method in the present invention, coating unit possesses around composite core spinfunction, to guarantee the uniformity of coating layer thickness.
Embodiment
Below in conjunction with example, the present invention will be described in detail.
Embodiment 1:
Through dipping process, obtaining fibre bundle take the speed of 0.7m/min through 190 ℃ of moulds and pulls out diameter as 5mm carbon fiber complex core, through 1 minute air-cooled cooling rear surface temperature, be down to 40 ℃, high pressure painting chamber through 0.5m hermetically-sealed construction, the perseveration of many shower nozzles rotational structure, speed rotation around composite core with 10 revolutions per seconds, by the fluorocarbon resin coating in hopper, high pressure painting is by controlling flow 30ml/min, regulate spray gun pressure 0.15MPa evenly to spray to carbon fiber complex core surface, dope viscosity is 300cps, carbon fiber complex core rear solidifying at 190 ℃ is not less than 4min, testing coating thickness is 70um, paint film resistance to wear (1000g/1000r) is 45mg (GB/T1768-79 (89)), long-term heat resisting temperature is 160 ℃, adhesion is 6MP (GB/T5210-2006), wet-heat resisting good (QJ990.10-86).
Embodiment 2
Through dipping process, obtaining fibre bundle take the speed of 0.4m/min through 180 ℃ of moulds and pulls out diameter as 8mm carbon fiber complex core, through 1 minute cooling rear surface temperature, be down to 35 ℃, pass the application chamber of the parallelism brush-coating device of 0.5m hermetically-sealed construction, automatically binder removal spread pen is around 0.5 revolutions per second of rotation of composite core, by the polyurea elastomer coating in hopper, evenly brush carbon fiber complex core surface, dope viscosity is 400cps, carbon fiber complex core rear solidifying at 160 ℃ is not less than 3min, testing coating thickness is 96um (GB/T13452.2-92), paint film resistance to wear (1000g/1000r) is 43mg (GB/T1768-79 (89)), long-term heat resisting temperature is 165 ℃, adhesion is 6MP (GB/T5210-2006), wet-heat resisting good (QJ990.10-86).
Embodiment 3
Through dipping process, obtaining fibre bundle take the speed of 0.5m/min through 200 ℃ of moulds and pulls out diameter as 10mm high-strength fiber glass composite core, through 1 minute cooling rear surface temperature, be down to 30 ℃, pass the application chamber of the hopper dip coating apparatus of 1m hermetically-sealed construction, in application chamber, there is a pair of upper and lower adjustable pulley device, pulley blocks high-strength fiber glass composite core and applies downward pressure, make high-strength fiber glass composite core immerse the high abrasion polyurethane coating in hopper, dope viscosity is 600cps, high-strength fiber glass composite core is the rear 5min that solidifies at 200 ℃, testing coating thickness is 90um (GB/T13452.2-92), paint film resistance to wear (1000g/1000r) is 42mg (GB/T1768-79 (89)), long-term heat resisting temperature is 165 ℃, adhesion is 5MP (GB/T5210-2006), wet-heat resisting good (QJ990.10-86).
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (13)
1. a used for transmission line fiber composite core wire, described wire is comprised of the fiber composite core setting gradually, coating and outer twisted wire, it is characterized in that: described coating is the coat that is selected from one or more coating in fluorocarbon resin coating, polyurea elastomer coating, polyurethane coating.
2. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described fiber composite core is carbon fiber complex core or high-strength fiber glass composite core.
3. a kind of used for transmission line fiber composite core wire as claimed in claim 2, is characterized in that: described high-strength fiber glass composite core is glass fiber reinforced epoxy resin coremaking.
4. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described coating is individual layer, and thickness is 50～100 μ m.
5. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described coating is multilayer, and thickness is 50～100 μ m.
6. a kind of used for transmission line fiber composite core wire as claimed in claim 5, it is characterized in that: described multilayer is corrosion resistant coating layer and wear-resistant paint layer from the inside to the outside, described corrosion resistant coating layer is fluorocarbon resin coating coat, and described wear-resistant paint layer is polyurea elastomer coating coat or polyurethane coating coat.
7. a kind of used for transmission line fiber composite core wire as claimed in claim 1, it is characterized in that: described fluorocarbon resin coating comprises thermosetting fluoro carbon resin and crosslinking agent, the cosegment of described thermosetting fluoro carbon resin comprises chlorotrifluoroethylene, vinylacetate, tertiary ethylene carbonate, hydroxyalkyl alkene ether, and described crosslinking agent is blocked isocyanate.
8. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described polyurea elastomer coating comprises ending amino polyether resin, amine chainextender and MDI prepolymer.
9. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described polyurethane coating is external crosslinking aqueous polyurethane coating, and comprise polyurethane and crosslinking agent, described crosslinking agent is aziridine.
10. a kind of used for transmission line fiber composite core wire as claimed in claim 1, is characterized in that: described fiber composite core is cylindrical, and diameter is 5～10mm.
11. a kind of used for transmission line fiber composite core wires as claimed in claim 1, is characterized in that: described coating is fast-curing paint, curing temperature is 170～190 ℃, and be 1～4min curing time.
Prepare the method for wire as claimed in claim 1 for 12. 1 kinds, it is characterized in that described method comprises the steps:
1) impregnation: pretreated fibre bundle is under hauling machine traction, in the abundant impregnating resin of dipping glue groove;
2) hot curing moulding: the pultrusion of step 1 gained fibre bundle is gone out to the moulding of hot setting mold releasability, and temperature is 180～210 ℃, and be 30～90s curing time;
3) applying coating: the fiber composite core of hot curing moulding is cooling by coating unit coating coating fast;
Dope viscosity is 300～600cps, and coating layer thickness is 50～100 μ m;
4) curing molding after: the fiber composite core that is coated with coating is solidified after hot setting case, and temperature is 160～200 ℃, and be 3～5min curing time;
5) in the outer twisted wire of fiber composite core outer cladding of rear curing molding.
The preparation method of 13. a kind of used for transmission line fiber composite core wires as claimed in claim 12, is characterized in that: described in step 3, applying coating is for selecting high pressure painting, hopper dip-coating or spread pen brushing method to apply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310672144.7A CN103646718B (en) | 2013-12-12 | 2013-12-12 | A kind of fiber composite core conductive wire for power transmission line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985464A (en) * | 2014-05-27 | 2014-08-13 | 中复碳芯电缆科技有限公司 | Wire with high current-carrying capacity and icing preventing performance and manufacturing method thereof |
| CN104835553A (en) * | 2015-04-15 | 2015-08-12 | 江苏中天科技股份有限公司 | Surface-treated cooled wire |
| CN106328275A (en) * | 2016-08-30 | 2017-01-11 | 上海电缆研究所 | Composite core for overhead conductor and manufacturing method thereof |
| CN110914924A (en) * | 2017-07-19 | 2020-03-24 | 住友电装株式会社 | Wire harness |
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| JPH04154004A (en) * | 1990-10-17 | 1992-05-27 | Fujikura Ltd | Overhead bare electric wire |
| US20040182597A1 (en) * | 2003-03-20 | 2004-09-23 | Smith Jack B. | Carbon-core transmission cable |
| CN1898085A (en) * | 2003-10-22 | 2007-01-17 | Ctc电缆公司 | Aluminum conductor composite core reinforced cable and method of manufacture |
| CN101125979A (en) * | 2006-08-18 | 2008-02-20 | 无锡市雅丽涂料有限公司 | Thermosetting fluorine-carbon resin for metal coiled material and coating thereof |
| CN101868487A (en) * | 2007-09-21 | 2010-10-20 | 陶氏环球技术公司 | Polyurethane polymer systems |
| CN102308340A (en) * | 2009-02-03 | 2012-01-04 | 尼克桑斯公司 | High voltage electric transmission cable |
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| CN103985464A (en) * | 2014-05-27 | 2014-08-13 | 中复碳芯电缆科技有限公司 | Wire with high current-carrying capacity and icing preventing performance and manufacturing method thereof |
| CN104835553A (en) * | 2015-04-15 | 2015-08-12 | 江苏中天科技股份有限公司 | Surface-treated cooled wire |
| CN106328275A (en) * | 2016-08-30 | 2017-01-11 | 上海电缆研究所 | Composite core for overhead conductor and manufacturing method thereof |
| CN110914924A (en) * | 2017-07-19 | 2020-03-24 | 住友电装株式会社 | Wire harness |
| CN110914924B (en) * | 2017-07-19 | 2021-06-04 | 住友电装株式会社 | Wire harness |
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