EP1973677A1 - Composite electrical conductor and method for producing it - Google Patents
Composite electrical conductor and method for producing itInfo
- Publication number
- EP1973677A1 EP1973677A1 EP06841009A EP06841009A EP1973677A1 EP 1973677 A1 EP1973677 A1 EP 1973677A1 EP 06841009 A EP06841009 A EP 06841009A EP 06841009 A EP06841009 A EP 06841009A EP 1973677 A1 EP1973677 A1 EP 1973677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- composite conductor
- core
- alloy
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/22—Making metal-coated products; Making products from two or more metals
- B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
- B21C23/26—Applying metal coats to cables, e.g. to insulated electric cables
- B21C23/30—Applying metal coats to cables, e.g. to insulated electric cables on continuously-operating extrusion presses
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
Definitions
- the invention relates to an electrical composite conductor, in particular contact wire, and a manufacturing method thereof.
- the Invention excels in its mechanical and electrical properties. the materials available so far. At the same time, it is adaptable to a wide range of different requirements. This increases the flexibility of the manufacturing process and the expansion of product diversity.
- the invention and thus the composite conductor consists of a base alloy of CuAg with an Ag content of 0.08 to 0.12% and the edge or the core of the composite conductor of an alloy of CuMg with an Mg content of 0.1 to 0 , 7% exists.
- the Mg content of the CuMg alloy is preferably 0.5% Mg.
- the silver content in the base alloy is 0.1% Ag.
- the area fraction of the core-side alloy at the cross-section of the composite conductor is between 10 and 80%.
- the area ratio of a CuMg alloy present in the core should be 50%.
- the structure of the core may consist of a single or multiple strands of wire.
- wire strands are on the kem proof, the wire strands have approximately the same diameter.
- the composite conductor can be produced in different cross sections. Such cross sections can be: circular for the production of a round wire, approximately rectangular for the production of a busbar or profiled for a profile wire. As a preferred application of a profile wire trolley wires should be addressed. In this connection reference is made to the standard EN 50149, in which contact wires are standardized.
- the known extrusion press process is proposed. It is the production of rods or wires via extrusion.
- the jacket material is introduced into (two) peripheral grooves of an extrusion wheel, wherein a flowable, tubular structure is produced by high friction on an abutment, which emerges as casing of the core material from the extruder opening.
- the core material is inserted through a hollow portal mandrel tangential to the extrusion wheel; the jacket material envelops the core material.
- the product is then passed through one or more dies and pulled down to final dimensions. It has already been mentioned that suitable extrusion presses are on the market.
- the invention utilizes the high strength and good conductivity of CuMg alloys in combination with the high conductivity, moderate workability and good wear performance of CuAg alloys.
- the physically limited range of conventional contact wires consisting of only one alloy can be significantly extended with the proposed alloying partners in terms of strength and electrical conductivity.
- the proposed composite driving wire in comparison to the previously known composite driving wires made of staku (steel-clad copper wire), the proposed composite driving wire, in addition to its better electrical conductivity, is not susceptible to corrosion and also capable of recycling.
- a grooved contact wire which contains at least one wire of CuMg 0.1... 0.7 in the core and is surrounded by a jacket of CuAg 0.1.
- the core wire may be round or more or less adapted to the outer profile of the sheath (Ri profile).
- the area fraction of the core wire in the cross section of the composite conductor can vary within wide limits.
- the core wire is characterized in that it is adjusted by means of different degrees of cold work to a desired strength and is introduced with this strength in the composite. By an additional after the Holton-Conform extrusion (for example) applied cold forming a further solidification of the composite trolley wire.
- a variability of the adjustable product properties especially the strength and the electrical conductivity
- the material pairing is also possible in another form, where in the core at least one wire of CuAg 0.1 is embedded, and the core is surrounded by a jacket of CuMg 0.1 ... 0.7.
- An advantage for the laying properties of the contact wire is that the application of a relatively high degree of cold forming according to the Holton-Conform process results in solidification of the CuAg jacket already in the region of saturation (Thermodynamic equilibrium) and the strength of the shell is significantly lower than the total of the core wire. Furthermore, the homogeneity of the structure of the high strength core wire is much higher than that of a conventional contact wire of a single material, whereby more uniform mechanical properties over the contact wire length can be achieved.
- a core wire round or as a profile wire having a defined (high) strength and conductivity is made of a CuMg alloy (e.g., CuMg 0.5).
- the surface of the core wire or wires is carefully removed from foreign or corrosion layers, for example by chemical treatment.
- a core wire produced and pretreated in this way is encased in a conform cladding process with the highly conductive material CuAg 0.1. During the process control, it should preferably be prevented that the core wire recrystallizes under the resulting thermal load.
- the resulting composite wire is brought by further drawing steps in its final profile shape and further solidified. Depending on the required cross-sectional portion of the core wire can be introduced as a round or profile wire.
- the manufacturing process is to be controlled in such a way that no core wires come to lie in the edge or cladding region near the surface of the composite conductor, so that in the cladding zone of about 10% of the diameter no core wire is present.
- the cross-sectional reduction in the drawing process has an influence on the final strength of the product.
- busbars are used stationary in electrical distribution systems, so that for this application, the mechanical strength plays only a minor role.
- Fig. 2 shows the cross section of a contact wire with only one core wire
- Fig. 3 shows the cross section of a contact wire with several embedded wire strands.
- a round wire 12 is drawn, in which a plurality of core wires 22 are located.
- the individual wires 22 are distributed irregularly in the material 14 and are spaced from the surface of the round wire, so that a wire-free edge zone is present.
- the regularity of the individual wire distribution depends on the manufacturing method used, and is accordingly controllable.
- Fig. 2 shows a trolley wire 10 (grooved wire or trolley wire) - according to EN 50149, which contains a wire of CuMg 0.1 ... 0.7 in the core 20 and is surrounded by a sheath 14 of CuAg 0.1.
- the core wire 20 comes from a round wire, which was deformed by the profiling, whereby it has received a pear-shaped cross-section. It is readily understood that the cross-sectional shape of the core wire depends on the magnitude of the deformation and the shape of the extruded starting profile, so that contact wires can also be produced which have a core wire that is still almost round.
- the area fraction of the core wire in the cross section of the composite conductor can vary within wide limits (10 to 80%). If a CuMg alloy is provided on the core side, the area fraction of this CuMg alloy should preferably be 50%.
- Fig. 3 shows a trolley wire 11, which contains a plurality of wire strands 22 in the core, which are distributed more or less regularly.
- the wire strands 22 are preferably made of a wire supply with a uniform diameter, so that the embedded wire strands have approximately uniform cross section, unless they undergo a different deformation in the manufacturing phase.
- the wire strands may also have non-circular cross-section.
- Cross section for the core wire 4 mm 2 As a numerical example of a contact wire is still specified: Cross section for the core wire 4 mm 2 . With a surface portion of the core wires of 50%, a corrugated contact wire (according to the above-mentioned standard) with a cross-section of approximately 120 mm 2 would require approximately 15 core wires.
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Non-Insulated Conductors (AREA)
- Conductive Materials (AREA)
- Metal Extraction Processes (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Developing Agents For Electrophotography (AREA)
- Soft Magnetic Materials (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200630364T SI1973677T1 (en) | 2005-12-20 | 2006-12-18 | Composite electrical conductor and method for producing it |
PL06841009T PL1973677T3 (en) | 2005-12-20 | 2006-12-18 | Composite electrical conductor and method for producing it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005060809A DE102005060809B3 (en) | 2005-12-20 | 2005-12-20 | Electric composite conductor |
PCT/EP2006/012177 WO2007071355A1 (en) | 2005-12-20 | 2006-12-18 | Composite electrical conductor and method for producing it |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1973677A1 true EP1973677A1 (en) | 2008-10-01 |
EP1973677B1 EP1973677B1 (en) | 2009-06-03 |
Family
ID=37907125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06841009A Not-in-force EP1973677B1 (en) | 2005-12-20 | 2006-12-18 | Composite electrical conductor and method for producing it |
Country Status (17)
Country | Link |
---|---|
US (1) | US7786387B2 (en) |
EP (1) | EP1973677B1 (en) |
JP (1) | JP2009520332A (en) |
KR (1) | KR20080090398A (en) |
CN (1) | CN101340987B (en) |
AT (1) | ATE432780T1 (en) |
AU (1) | AU2006329004A1 (en) |
CA (1) | CA2633469A1 (en) |
DE (2) | DE102005060809B3 (en) |
DK (1) | DK1973677T3 (en) |
ES (1) | ES2326552T3 (en) |
PL (1) | PL1973677T3 (en) |
PT (1) | PT1973677E (en) |
RU (1) | RU2008129369A (en) |
SI (1) | SI1973677T1 (en) |
WO (1) | WO2007071355A1 (en) |
ZA (1) | ZA200805250B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2808873A1 (en) * | 2013-05-28 | 2014-12-03 | Nexans | Electrically conductive wire and method for its manufacture |
RU2703564C1 (en) * | 2018-09-18 | 2019-10-21 | Общество с ограниченной ответственностью "Научно-производственное предприятие "НАНОЭЛЕКТРО" | Composite contact wire |
CN110660499A (en) * | 2019-10-09 | 2020-01-07 | 中铁建电气化局集团康远新材料有限公司 | Large-length melting and penetrating type copper-steel composite wire and voltage symmetrical wiring method thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE221169C (en) | ||||
GB8309875D0 (en) * | 1983-04-12 | 1983-05-18 | Babcock Wire Equipment | Continuous extrusion apparatus |
JPH01175535A (en) * | 1987-12-28 | 1989-07-12 | Fujikura Ltd | Copper coated composite trolley line |
JPH0644412B2 (en) * | 1989-04-10 | 1994-06-08 | 株式会社フジクラ | Copper composite wire for extra fine wire |
GB9100317D0 (en) | 1991-01-08 | 1991-02-20 | Holton Machinery Ltd | Co-axial cable |
JPH06187851A (en) * | 1992-12-18 | 1994-07-08 | Hitachi Cable Ltd | Manufacture of fiber-reinforced composite wire for overhead power transmission line and device therefor |
CN1032824C (en) * | 1993-09-06 | 1996-09-18 | 铁道部科学研究院机车车辆研究所 | Copper alloy contact wire |
DE19539174C1 (en) * | 1995-10-20 | 1997-02-27 | Siemens Ag | Trolley wire for electrical high speed railway |
JP4456696B2 (en) * | 1999-07-06 | 2010-04-28 | 住友電気工業株式会社 | Coaxial cable strands, coaxial cables, and coaxial cable bundles |
JP2001148205A (en) * | 1999-11-19 | 2001-05-29 | Hitachi Cable Ltd | Material for ultra thin copper alloy wire and its method of manufacturing |
US7131308B2 (en) * | 2004-02-13 | 2006-11-07 | 3M Innovative Properties Company | Method for making metal cladded metal matrix composite wire |
JP5306591B2 (en) * | 2005-12-07 | 2013-10-02 | 古河電気工業株式会社 | Wire conductor for wiring, wire for wiring, and manufacturing method thereof |
-
2005
- 2005-12-20 DE DE102005060809A patent/DE102005060809B3/en not_active Expired - Fee Related
-
2006
- 2006-12-18 CN CN2006800479132A patent/CN101340987B/en not_active Expired - Fee Related
- 2006-12-18 DE DE502006003916T patent/DE502006003916D1/en active Active
- 2006-12-18 CA CA002633469A patent/CA2633469A1/en not_active Abandoned
- 2006-12-18 US US12/158,406 patent/US7786387B2/en not_active Expired - Fee Related
- 2006-12-18 ES ES06841009T patent/ES2326552T3/en active Active
- 2006-12-18 SI SI200630364T patent/SI1973677T1/en unknown
- 2006-12-18 AT AT06841009T patent/ATE432780T1/en not_active IP Right Cessation
- 2006-12-18 PL PL06841009T patent/PL1973677T3/en unknown
- 2006-12-18 KR KR1020087014903A patent/KR20080090398A/en not_active Application Discontinuation
- 2006-12-18 DK DK06841009T patent/DK1973677T3/en active
- 2006-12-18 EP EP06841009A patent/EP1973677B1/en not_active Not-in-force
- 2006-12-18 PT PT06841009T patent/PT1973677E/en unknown
- 2006-12-18 RU RU2008129369/02A patent/RU2008129369A/en not_active Application Discontinuation
- 2006-12-18 WO PCT/EP2006/012177 patent/WO2007071355A1/en active Application Filing
- 2006-12-18 AU AU2006329004A patent/AU2006329004A1/en not_active Abandoned
- 2006-12-18 JP JP2008546214A patent/JP2009520332A/en active Pending
-
2008
- 2008-06-17 ZA ZA200805250A patent/ZA200805250B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2007071355A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK1973677T3 (en) | 2009-09-07 |
ATE432780T1 (en) | 2009-06-15 |
RU2008129369A (en) | 2010-01-27 |
US7786387B2 (en) | 2010-08-31 |
AU2006329004A1 (en) | 2007-06-28 |
PT1973677E (en) | 2009-07-29 |
CA2633469A1 (en) | 2007-06-28 |
PL1973677T3 (en) | 2009-11-30 |
CN101340987B (en) | 2012-07-25 |
DE102005060809B3 (en) | 2007-09-20 |
DE502006003916D1 (en) | 2009-07-16 |
WO2007071355A1 (en) | 2007-06-28 |
CN101340987A (en) | 2009-01-07 |
SI1973677T1 (en) | 2009-12-31 |
ZA200805250B (en) | 2009-11-25 |
ES2326552T3 (en) | 2009-10-14 |
US20090075117A1 (en) | 2009-03-19 |
JP2009520332A (en) | 2009-05-21 |
KR20080090398A (en) | 2008-10-08 |
EP1973677B1 (en) | 2009-06-03 |
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