CN101004957A - Copper-aluminum composite contact wire and its producing method - Google Patents
Copper-aluminum composite contact wire and its producing method Download PDFInfo
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- CN101004957A CN101004957A CN 200610005688 CN200610005688A CN101004957A CN 101004957 A CN101004957 A CN 101004957A CN 200610005688 CN200610005688 CN 200610005688 CN 200610005688 A CN200610005688 A CN 200610005688A CN 101004957 A CN101004957 A CN 101004957A
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Abstract
The invention relates to copper-aluminum composite contact wire in use for contact wire of contact system of electric railways and transit, and production method. Features are: using plastic deformed composite molding integrates copper (or copper alloy) and aluminum (or aluminum alloy) as an integral wire. The part of the integral wire of contacting to aluminum clamp is aluminum (or copper alloy), and the part of contacting to pantagraph of locomotive is copper alloy. Characters are that composition of plastic molding bimetal includes methods of extrusion (continuous extrusion), rolling, and tension etc. Integrated conductivity of the produced contact wire is as 65%IACS - 105%IACS; Hardness of working portion (i.e. sliding friction copper alloy of pantagraph) is as HB90 - 200; and joint force between copper and aluminum is as 400 - 550N/cm.
Description
Technical field
The present invention relates to a kind of electric railway and public transport contact line contact wire copper-aluminum composite contact wire and production method thereof.
Background technology
Contact wire is a kind of lead for electric power locomotive bow collector transmission current.The domestic contact wire that is applied to electric railway and public transit system mostly is copper or copper alloy contact wire at present, because the electrical wiring clip uses the aluminum or aluminum alloy folder more, therefore when practical application, forming with copper easily is negative electrode, aluminium is anode, and rainwater, condensation etc. are the electrolyte electrochemical corrosion, has a strong impact on the life-span of aluminum binding clip, and shortened electric railway and repaiied the cycle of changing, very be unfavorable for the normal operation of electric railway and public transport.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of conductance height, resistance to wear good, fully avoid the electrochemical corrosion of aluminium clip, improve the copper-aluminum composite contact wire and the production method thereof in binding clip life-span.
The technical solution adopted for the present invention to solve the technical problems is: a kind of copper-aluminum composite contact wire, its special character is: is a whole wire rod with copper (perhaps copper alloy) and aluminium (perhaps aluminium alloy) bimetallic by the plastic deformation composite molding, make wherein with aluminium clip contact portion be aluminium (perhaps aluminium alloy, and with locomotive pantograph contact portion be copper alloy; A kind of method of making above-mentioned copper-aluminum composite contact wire, its special character is: adopted bimetallic Plastic Forming composite algorithm, comprising methods such as extruding (comprising continuously extruded), rolling, stretching, alignings.
According to above-mentioned a kind of copper-aluminum composite contact wire and manufacture method thereof, technical scheme is "---compound in advance---the drawing and setting method of copper cash base, aluminum steel base " preferably, comprise " copper cash base, aluminium base---push compound in advance---drawing and setting ", " copper cash base, aluminum steel base---continuously extruded compound in advance---drawing and setting ", " copper cash base, aluminium base---rolling compound in advance---drawing and setting ", " copper cash base, aluminum steel base---it is compound in advance to stretch---drawing and setting ", " copper cash base, aluminum steel base---stretch ".All technical schemes all need the aligning of seeing off at last.
According to above-mentioned a kind of copper-aluminum composite contact wire and manufacture method thereof, the preferred plan of producing this product be " copper cash base ε=40%～70% predeformation), the aluminum steel base---stretch compound in advance---drawing and setting---aligning "
The design of the technology of the present invention and the foundation of realization are as follows:
Plastic working has that deformation force is big, the accurate characteristics of processing dimension, and [technology makes copper (or copper alloy) and aluminium (or aluminium alloy) produce same step plastic deformation, keeps the continuity on the length direction to utilize special processing; And two kinds of metals are embedded in deformation process mutually, reach fine and close, high-intensity combination.
The copper blank carries out predeformation, can make copper just possess enough hardness before compound with aluminium, to guarantee the hardness requirement of final products to the copper part.
This procedure that stretches of all will adopt in all invention schemes, but the size and the surface quality of the finishing product that stretches can accurately be controlled the overall dimension of product, and product surface is bright and clean, the product warpage, turns round and twists phenomenon and alleviate.
To adopt the aligning operation at last in the invention scheme, aligning will solve product bending, warpage, turn round defectives such as stubborn, make product have fabulous glacing flatness.
The invention has the beneficial effects as follows: the comprehensive conductance of the copper-aluminum composite contact wire of being produced is 65%IACS～105%IACS, can reach various conductance requirements by changing the copper aluminium sectional area ratio and the conversion copper alloy trade mark and the aluminium alloy trade mark; The hardness of the working portion of the copper-aluminum composite contact wire of the being produced copper alloy part of pantograph sliding friction (promptly with) is HB90～200, can and carry out special thermal treatment by the conversion copper alloy trade mark, conversion working modulus and obtain needed hardness requirement; The copper-aluminum composite contact wire copper aluminium engaging force that the technology of the present invention is produced is 400～550N/cm.
The invention will be further described below in conjunction with embodiment:
Embodiment one: with fine copper (copper alloy) line base, fine aluminium (aluminium alloy) line base, the pre-compound working procedure that stretches is handled, carrying out the drawing and setting operation again handles, earlier by continuously extruded yellow gold line base and the 6063 aluminium alloy wire bases of making, again yellow gold line base is carried out ε=55% tensile pre-deformation, on 5 tons of broaching machines, carry out compoundly in advance by drawing die, on same broaching machine, carry out sizing immediately and stretch compoundly, carry out stretcher leveling at last.
Embodiment two: by "---the continuously extruded compound in advance---drawing and setting of copper cash base, aluminum steel base " of the present invention operation, earlier by continuously extruded yellow gold line base and the 6063 aluminium alloy wire bases of making, again yellow gold line base is carried out ε=55% tensile pre-deformation, on continuous extruder, two kinds of alloy wires are carried out continuously extruded compound in advance then, the sizing that stretches immediately carries out stretcher leveling at last.
Embodiment three: by " copper cash base, aluminum steel base one a rolling pre-compound drawing and setting " of the present invention operation, earlier by continuously extruded yellow gold line base and the 6063 aluminium alloy wire bases of making, again yellow gold line base is carried out ε=55% tensile pre-deformation, by milling train two kinds of metal wire rods are rolled pre-platform again then, sizing and aligning at last stretch.
Embodiment four: by " copper cash base, aluminum steel base-drawing and setting " of the present invention operation, earlier by continuously extruded yellow gold line base and the 6063 aluminium alloy wire bases of making, again yellow gold line base is carried out ε=55% tensile pre-deformation, on 5 tons of broaching machines, carry out compoundly by drawing die, carry out stretcher leveling at last.
Claims (4)
1, a kind of copper-aluminum composite contact wire, it is characterized in that: is a whole wire rod with copper (perhaps copper alloy) and aluminium (perhaps aluminium alloy) bimetallic by the plastic deformation composite molding, make wherein with aluminium clip contact portion be aluminium (perhaps aluminium alloy, and with locomotive pantograph contact portion be copper alloy.
2, a kind of method of using the above-mentioned copper-aluminum composite contact wire of the described manufacturing of claim 1 is characterized in that: adopted bimetallic Plastic Forming composite algorithm, comprising methods such as extruding (comprising continuously extruded), rolling, stretching, alignings.
3, according to claim 1 and 2 described copper-aluminum composite contact wire and manufacture methods thereof, it is characterized in that: technical scheme is "---compound in advance---the drawing and setting method of copper cash base, aluminum steel base " preferably, comprise " copper cash base, aluminium base---push compound in advance---drawing and setting ", " copper cash base, aluminum steel base---continuously extruded compound in advance---drawing and setting ", " copper cash base, aluminium base---rolling compound in advance---drawing and setting ", " copper cash base, aluminum steel base---it is compound in advance to stretch---drawing and setting ", " copper cash base, aluminum steel base---stretch ".All technical schemes all need the aligning of seeing off at last.
4, according to claim 1 and 2 described copper-aluminum composite contact wire and manufacture methods thereof, it is characterized in that: the preferred plan of producing this product be " copper cash base ε=40%～70% predeformation), the aluminum steel base---stretch compound in advance---drawing and setting---aligning ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100056888A CN100555475C (en) | 2006-01-18 | 2006-01-18 | Copper-aluminum composite contact wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100056888A CN100555475C (en) | 2006-01-18 | 2006-01-18 | Copper-aluminum composite contact wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101004957A true CN101004957A (en) | 2007-07-25 |
| CN100555475C CN100555475C (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100056888A Expired - Fee Related CN100555475C (en) | 2006-01-18 | 2006-01-18 | Copper-aluminum composite contact wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909235A (en) * | 2012-10-29 | 2013-02-06 | 江西广信铜业有限公司 | Production method of high-precision special-shaped copper and copper alloy strips |
| CN107719188A (en) * | 2017-11-06 | 2018-02-23 | 成都金和工贸有限公司 | A kind of copper-aluminum composite contact wire and its manufacture method |
| CN109979687A (en) * | 2019-04-23 | 2019-07-05 | 张裕仕 | A kind of manufacture craft of fine silver & proof gold balance conductor |
-
2006
- 2006-01-18 CN CNB2006100056888A patent/CN100555475C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909235A (en) * | 2012-10-29 | 2013-02-06 | 江西广信铜业有限公司 | Production method of high-precision special-shaped copper and copper alloy strips |
| CN107719188A (en) * | 2017-11-06 | 2018-02-23 | 成都金和工贸有限公司 | A kind of copper-aluminum composite contact wire and its manufacture method |
| CN107719188B (en) * | 2017-11-06 | 2023-07-07 | 成都金和工贸有限公司 | Copper-aluminum composite contact wire and manufacturing method thereof |
| CN109979687A (en) * | 2019-04-23 | 2019-07-05 | 张裕仕 | A kind of manufacture craft of fine silver & proof gold balance conductor |
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| Publication number | Publication date |
|---|---|
| CN100555475C (en) | 2009-10-28 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20120118 |