CN101752032A - Contact cable taking alloy material to wrap carbon fiber core - Google Patents
Contact cable taking alloy material to wrap carbon fiber core Download PDFInfo
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- CN101752032A CN101752032A CN200810227849A CN200810227849A CN101752032A CN 101752032 A CN101752032 A CN 101752032A CN 200810227849 A CN200810227849 A CN 200810227849A CN 200810227849 A CN200810227849 A CN 200810227849A CN 101752032 A CN101752032 A CN 101752032A
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Abstract
The invention relates to an electric transmission cable, in particular to a contact cable taking alloy material to wrap the carbon fiber core for rapid transit ralway, which is characterized in that the center of the cable is provided with a carbon fiber core; the outside of the carbon fiber core is wrapped with an alloy layer; the alloy and the carbon fiber core are arranged in a horizontal caster, or in a rolling wrapping machine, or in an alloy dip-coating device to composite a cable. The alloy is sliver copper alloy or tin copper alloy or chromium zircomium copper alloy or cadmium copper alloy or magnesium copper alloy. The section of the surface of the cable is round after being treated by cold rolling and cold drawing. The two sides of the round section are symmetrically provided with two V-shaped cable-hanging grooves which are drawn from a cold-drawing die. Compared with the existing steel-core cable, the weight of the contact cable is greatly reduced, thus effectively solving the problem of the sagging of the cable, the contact cable can work under higher temperature, the core can resist corrosion and has not the problem of corrosion between metals, so the higher current-carrying capacity can be provided and the number of the cable stand can be effectively reduced.
Description
Technical field
The present invention relates to the power transmission and transformation cable, be specifically related to be used for the contact cable taking that high-speed railway has strengthening core.
Background technology
Along with railway raises speed significantly, operations task increase the weight of and competition is growing more intense, Heavy-Haul Railwayization, high speed (more than the 300Km/h) have become the development trend of world's railway systems, and the contact wire that uses in the railway operation is one of critical equipment of wheel-track type railway high speedization.Used fine copper and Kufil contact wire intensity only is 350-400MPa at present, only is suitable for middle low speed (250Km/h is following) railway, is difficult to satisfy the service condition of high-speed railway.
The contact wire that the low speed railway is used in the domestic and international existing confession generally adopts continuous up-casting, cooperates cold-work strengthening, makes its intensity can reach the requirement of railway operation.Material composition mainly serves as the main middle wire-core that adds with fine copper, Kufil, signal bronze and copper magnesium alloy etc., and is strong in order to the stretching that improves contact cable taking.The technological method for processing of this class basis cable is simply efficient, but its fatal weakness is material structure densification inadequately, and the cable deadweight is bigger, and sagging serious after cable sets up, cable metaplasia in drawing process is not thorough, and core structure crystal grain is thicker; And updraft continuous casting process is used for producing simple alloy mostly, and for complex alloys, continuous up-casting is difficult to carry out, so defective is a lot.But along with the railway high speed operation, simple cold-work strengthening can't be satisfied its requirement.
The conductor material that can satisfy the requirement of high-speed railway contact wire in the world at present seldom, the Re330 type copper magnesium alloy contact wire of German federal joint-stock company (DBAG) is comparatively advanced, tensile strength reaches 503MPa, conductivity is 68.1%, softening temperature is 385 ℃.The domestic contact wire material of introducing Germany also is the Cu-Mg alloy, and its intensity and conductance are also approaching with above-mentioned numerical value, and these parameters are not very too high for high-speed railway.The present high-speed railway lead of China does not form system as yet, and it is very urgent to research and develop the high-speed railway contact wire with independent intellectual property rights.
The high-speed railway contact wire requires material to have high intensity and electric conductivity simultaneously, must could realize by special composition design and process technology.Strengthen the copper matrix by means such as solution strengthening, precipitation strength, refined crystalline strengthening and working hardenings, require the material of strengthening core to possess the hot strength height because of this, in light weight, good conductivity, characteristics such as high temperature resistant, resistance to low temperature is good.And it is ripe to possess technology, and technology is simpler, and cost is lower, suitability for scale production, but the existing all kinds of contact cable taking gained strength of materials generally is lower than 550MPa, and conductivity generally is difficult to surpass 75%IACS.Artificial compound and spontaneous composite algorithm is another kind of important intensifying method.Artificial composite material is by the particle of artificial adding second phase, whisker, fibre strengthening copper matrix or relies on the intensity of hardening constituent own to increase copper product intensity (powder metallurgy and plastic deformation method).The in-situ composite method is to add alloying element in copper, by the super large deformation technique, generates wild phase in the inner original position of copper alloy, constitutes fibrous composite with matrix copper, and strengthens body and matrix copper just exists with two kinds of material forms before processing.The copper alloy tensile strength of composite algorithm preparation can reach more than the 2000MPa, but exist the control of complex process, difficult quality, production cost is too high, be difficult to industrialization, and can't be used to produce length (1500m) contact wire that can be fit to the requirement of electric railway contact wire, be unfavorable for suitability for industrialized production.
The core technology of alloyage process is by adding certain alloying element in the copper matrix, to form solid solution or supersaturated solid solution, make generation distortion of lattice of copper matrix or timeliness precipitation strength phase, obtaining the copper alloy that high strength and high conduction performance have both.The copper material intensity σ b that makes with alloying is between 350～650MPa, and conductivity can just need to cooperate other technology but will make the two have higher level simultaneously up to 60-90%IACS.All kinds of contact cable takings that adopt prior art to produce in sum can't satisfy the requirement of the railway transportation of fast development, therefore are necessary the structure and the processing technology of existing contact cable are improved.
Summary of the invention
The objective of the invention is to overcome defective of the prior art, design a kind of contact cable taking with alloy material to wrap carbon fiber core.This contact cable taking is compared with the ACSR cable of same diameter, double current-carrying capacity can be provided, effectively solve the cable sagging problem; Can under higher temperature, work, reach as high as 200 degrees centigrade; Core can be anticorrosive, and do not have etching problem between bimetallic; Because higher current-carrying capacity can be provided, also effectively reduced engineering cost simultaneously; Compare with the same diameter traditional cable and can hold conductor more; The high strength core can effectively reduce the quantity of cable rack, or reduces the height of cable rack; It is sagging effectively to reduce cable, makes the ground biology safer.
For achieving the above object, technical scheme of the present invention is to adopt a kind of contact cable taking with alloy material to wrap carbon fiber core, is provided with carbon fiber core at the center of described cable, is enclosed with alloy-layer in the appearance of described carbon fiber core; Described alloy and described carbon fiber core or in prick pressing coating machine, or are combined into cable in alloy is invaded coating device in horizontal caster.
Wherein, in described horizontal caster, or in pricking the pressure coating machine, or in alloy is invaded coating device, be provided with the locating rack that makes carbon fiber core be positioned at the cable center.
Wherein, described alloy is copper alloy or aluminium alloy.
Wherein, described copper alloy is a yellow gold or for gun-metal or for chrome zirconium copper alloy or for cadmium copper alloy or for magnesium copper alloy.
Wherein, described cable surface cross sectional shape after cold rolling and cold-drawn are handled is circular.
Wherein, medianly zygomorphic in described circular cross-section, be provided with two V-arrangement hanging wire grooves extracting in the cold drawing die.
Wherein, the cable of described V-arrangement hanging wire groove lower end surface is exposed conductive surface, can be provided with insulating barrier on the cable surface of described V-arrangement hanging wire groove upper end.
Wherein, the material of described insulating barrier is an insulating varnish, or is heat-shrinkable T bush, or is rubber, or is fabric.
Wherein, between described carbon fiber core and described alloy-layer, can install insulating barrier additional.
Wherein, described contact cable taking is the contact cable in the high-speed railway.
Advantage of the present invention and beneficial effect are, because the intrinsic advantage of carbon fibre material, this contact cable taking is compared with the ACSR cable of same diameter, and the weight of cable has obtained alleviating significantly, and double current-carrying capacity can be provided, and effectively solves the cable sagging problem; Can under higher temperature, work, reach as high as 200 degrees centigrade; Core can be anticorrosive, and do not have etching problem between bimetallic; Because higher current-carrying capacity can be provided, so also effectively reduced engineering cost simultaneously; Compare with the same diameter traditional cable and can hold 28% conductor more; The high strength core can effectively reduce the quantity of cable rack, or reduces the height of cable rack; It is sagging effectively to reduce cable, makes the ground biology safer.
With the contact cable taking of alloy material to wrap carbon fiber core have high strength, high-modulus, high temperature resistant, antifatigue, conduct electricity very well, light weight, easy multiple excellent properties such as processing, can conquer and replace the contact cable taking of the firm core material of tradition.
Description of drawings
Fig. 1 is that the present invention contacts the cable sectional structure chart;
Fig. 2 is horizontal caster of the present invention and carbon fiber core set composite structural representation.
Among the figure: 1, carbon fiber core; 2, alloy-layer; 3, V-arrangement hanging wire groove; 4, contact cable taking; 5, the compound stove of carbon fiber core and alloy-layer; 6, electric heater unit; 7, carbon fiber core and alloy-layer composite die; 8, cold bundling device; 9, cold-drawn device; 10, locating rack.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
As illustrated in fig. 1 and 2, the concrete technical scheme of implementing of the present invention is:
Adopt a kind of contact cable taking 4 with alloy material to wrap carbon fiber core, be provided with carbon fiber core, be enclosed with alloy-layer 2 in the appearance of described carbon fiber core 1 at the center of described cable; Described alloy and described carbon fiber core or in prick pressing coating machine, or are combined into cable in alloy is invaded coating device in horizontal caster.The recombination process of carbon fiber core and alloy-layer as shown in Figure 2 in horizontal caster, electric heater unit 6 is with the alloy material heating and melting in carbon fiber core and the compound stove 5 of alloy-layer, the alloy material of carbon fiber core and thawing is combined into the contact cable taking that is wrapped in carbon fiber core by alloy material by carbon fiber core and alloy-layer composite die 7, makes the contact cable taking 4 with alloy material to wrap carbon fiber core again behind apparatus for cold rolling 8 and cold-drawn device 9.
In the present invention, in described horizontal caster, or in pricking the pressure coating machine, or in alloy is invaded coating device, be provided with the locating rack 10 that makes carbon fiber core be positioned at the cable center.Be used to make carbon fiber core to be positioned at the center of contact cable taking.
In the present invention, described alloy can be copper alloy or aluminium alloy.Wherein, described copper alloy can be a yellow gold or for gun-metal or for chrome zirconium copper alloy or for cadmium copper alloy or for magnesium copper alloy.
In the present invention, described cable surface cross sectional shape after cold rolling and cold-drawn are handled is circular.At medianly zygomorphic two the V-arrangement hanging wire grooves 3 extracting in the cold drawing die that are provided with of described circular cross-section.
In the present invention, the cable of described V-arrangement hanging wire groove 3 lower ends surface can be provided with insulating barrier for exposed conductive surface on the cable surface of described V-arrangement hanging wire groove 3 upper ends.The material of described insulating barrier is an insulating varnish, or is heat-shrinkable T bush, or is rubber, or is fabric.
In the present invention, can between described carbon fiber core and described alloy-layer, can install insulating barrier additional according to the needs in the actual engineering.
Present embodiment best-of-breed technology scheme is to being described contact cable taking to be used for the contact cable of high-speed railway.
The advantage of present embodiment also shows as, as everyone knows, a kind of special fibre that carbon fiber mainly is made up of carbon, its phosphorus content is higher, be the artificial chemical fibre of not fusion in heat treatment process, through thermally-stabilised oxidation processes, what make through technologies such as carbonization treatment and graphitizations.Its phosphorus content is different and different with kind, generally more than 90%.Carbon fiber has the characteristic of general carbon materials, as high temperature resistant, wear-resisting wiping, conduction, heat conduction and corrosion-resistant etc., but different with general carbon materials be that its profile has significant anisotropism, softness, machinability good, show very high intensity along the fiber axis direction, and carbon fiber proportion is little.
Carbon fiber has been given the performance of its compound back material excellence with its intrinsic characteristic, it has a series of excellent properties such as high specific strength, high ratio modulus, high temperature resistant, corrosion-resistant, endurance, creep resistant, conduction, heat transfer and thermal coefficient of expansion be little, thus for its application in wires and cables industry provide may and inevitable.
The present invention compares with steel core alloy twisted wire with the contact cable taking 4 of alloy material to wrap carbon fiber core, and carbon fiber composite core wire has the following advantages: compare with the ACSR cable of same diameter, double current-carrying capacity can be provided.Effectively solve the cable sagging problem.Can under higher temperature, work, reach as high as 200 degrees centigrade.Core can be anticorrosive, and do not have etching problem between bimetallic.Because higher current-carrying capacity can be provided, so also effectively reduced engineering cost simultaneously.Compare with the same diameter traditional cable and can hold 28% conductor more.The high strength core can effectively reduce the quantity of cable rack, or reduces the height of cable rack.It is sagging effectively to reduce cable, makes the ground biology safer.
Except the above-mentioned advantage of mentioning, also can reduce the loss of electric power in the transmission, reduce by 20% tower bar, save land used, reduce nonferrous metal resource consumption, help to construct safety, environmental protection, efficient economizing type electric power transmission network.
Carbon fiber is thin as the spider's thread, three type carbon fiber specific strengths are more than 62 times of steel, forming technology is good, is generation new engineering material, its amount of elasticity height, antitypy energy force rate steel is big more than 2 times, tensile strength 30～40t/cm2pa, and proportion is less than 1/4th of steel, is 1/2nd of copper alloy, plateau modulus is bigger 16 times than iron and steel, and is bigger 12 times than copper alloy.And carbon fiber is than softnesses such as steel.Therefore, carbon fiber can be used for requirement can load-bearing, the strengthening core of the cable of non-easy damaged inner member, as submarine fiber cable etc.Carbon fiber can anti--180 ℃ low temperature, and with this understanding, it is very crisp that many materials all become, and the ratio glass that firm iron and steel also becomes is also fragile, and carbon fiber is still very soft with this understanding.Therefore, carbon fiber complex core can be used for the design and the manufacturing of transmission of electricity carrier under extremely cold (as antarctic investigation research etc.) condition.Carbon fiber again can anti-3000 ℃～3500 ℃ high temperature, and heat resisting steel best under this high temperature also becomes molten steel, but is not having under the situation of oxygen, and carbon fiber does not change.Even carbon fiber is cooled fast to room temperature from 3000 ℃ high temperature and also can burst, thereby can work in the environment of rapid heat cycle.This design for high temperature extra-high-speed temperature occasion cable in the industries such as iron and steel, metallurgy, boiler provides may.In addition, the design that all can be used for the fire electricity line product of carbon fiber yarn, carbon fiber rope, carbon cloth is selected for use.Carbon fiber has superpower corrosion resistance.What corrosion resistance was the strongest in the metal is gold and platinum, and what gold, platinum can be corroded in the solution of the title " chloroazotic acid " that a nitric acid (concentration 70%) and three parts of sulfuric acid (concentration 39%) are made into is riddled with gaping wounds, and the carbon fiber in " chloroazotic acid " is safe and sound.For the design of light-duty resistance to chemical attack cable under the various chemical environments provides new thinking.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the contact cable taking with alloy material to wrap carbon fiber core is characterized in that, is provided with carbon fiber core at the center of described cable, is enclosed with alloy-layer in the appearance of described carbon fiber mandrel; Described alloy and described carbon fiber core or in prick pressing coating machine, or are combined into cable in alloy is invaded coating device in horizontal caster.
2. the alloyed contact line cable that is surrounded by carbon fiber core as claimed in claim 1 is characterized in that, in described horizontal caster, or in pricking the pressure coating machine, or in alloy is invaded coating device, be provided with the locating rack that makes carbon fiber core be positioned at the cable center.
3. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 2 is characterized in that described alloy is copper alloy or aluminium alloy.
4. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 3 is characterized in that, described copper alloy is a yellow gold or for gun-metal or for chrome zirconium copper alloy or for cadmium copper alloy or be magnesium copper alloy.
5. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 4 is characterized in that, described cable surface cross sectional shape after cold rolling and cold-drawn are handled is circular.
6. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 5 is characterized in that, and is medianly zygomorphic in described circular cross-section, is provided with two V-arrangement hanging wire grooves extracting in the cold drawing die.
7. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 6 is characterized in that, the cable surface of described V-arrangement hanging wire groove lower end is exposed conductive surface, can be provided with insulating barrier on the cable surface of described V-arrangement hanging wire groove upper end.
8. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 7 is characterized in that the material of described insulating barrier is an insulating varnish, or is heat-shrinkable T bush, or be rubber, or is fabric.
9. as each described contact cable taking in the claim 1 to 8, it is characterized in that, between described carbon fiber core and described alloy-layer, can install insulating barrier additional with alloy material to wrap carbon fiber core.
10. the contact cable taking with alloy material to wrap carbon fiber core as claimed in claim 9 is characterized in that described contact cable taking is the contact cable in the high-speed railway.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810227849A CN101752032A (en) | 2008-12-01 | 2008-12-01 | Contact cable taking alloy material to wrap carbon fiber core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810227849A CN101752032A (en) | 2008-12-01 | 2008-12-01 | Contact cable taking alloy material to wrap carbon fiber core |
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| CN101752032A true CN101752032A (en) | 2010-06-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581236A (en) * | 2012-04-06 | 2012-07-18 | 北京科技大学 | Pressure core-filling continuous casting equipment and process for double-metal-bag long carbon fiber composite material |
| CN104493113A (en) * | 2014-11-27 | 2015-04-08 | 北京科技大学 | Long carbon fiber and metal composite continuous casting machine and process |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
| CN105244070A (en) * | 2015-10-23 | 2016-01-13 | 北京交通大学 | Fiber reinforcement copper substrate composite contact line |
| CN105274451A (en) * | 2015-10-23 | 2016-01-27 | 烟台金晖铜业有限公司 | Enhancement core of fiber-reinforced copper-based composite material contact line |
| CN109378669A (en) * | 2018-12-10 | 2019-02-22 | 河北硅谷化工有限公司 | A kind of electric railway novel carbon fiber composite core contact line and its manufacture craft |
| CN114160764A (en) * | 2021-11-22 | 2022-03-11 | 昆明理工大学 | Method for producing composite material by adopting continuous casting |
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2008
- 2008-12-01 CN CN200810227849A patent/CN101752032A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581236A (en) * | 2012-04-06 | 2012-07-18 | 北京科技大学 | Pressure core-filling continuous casting equipment and process for double-metal-bag long carbon fiber composite material |
| CN104493113A (en) * | 2014-11-27 | 2015-04-08 | 北京科技大学 | Long carbon fiber and metal composite continuous casting machine and process |
| CN104493113B (en) * | 2014-11-27 | 2016-08-24 | 北京科技大学 | A kind of long carbon fiber and metal composite continuous casting installation for casting and technique |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
| CN105244070A (en) * | 2015-10-23 | 2016-01-13 | 北京交通大学 | Fiber reinforcement copper substrate composite contact line |
| CN105274451A (en) * | 2015-10-23 | 2016-01-27 | 烟台金晖铜业有限公司 | Enhancement core of fiber-reinforced copper-based composite material contact line |
| CN105274451B (en) * | 2015-10-23 | 2018-05-18 | 中国铁路总公司 | The enhancing core of fiber reinforcement Cu-base composites contact line |
| CN105244070B (en) * | 2015-10-23 | 2024-05-10 | 中国铁路总公司 | Contact wire of fiber reinforced copper-based composite material |
| CN109378669A (en) * | 2018-12-10 | 2019-02-22 | 河北硅谷化工有限公司 | A kind of electric railway novel carbon fiber composite core contact line and its manufacture craft |
| CN114160764A (en) * | 2021-11-22 | 2022-03-11 | 昆明理工大学 | Method for producing composite material by adopting continuous casting |
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Open date: 20100623 |