EP1973677B1 - Conducteur electrique composite et procede pour sa fabrication - Google Patents

Conducteur electrique composite et procede pour sa fabrication Download PDF

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Publication number
EP1973677B1
EP1973677B1 EP06841009A EP06841009A EP1973677B1 EP 1973677 B1 EP1973677 B1 EP 1973677B1 EP 06841009 A EP06841009 A EP 06841009A EP 06841009 A EP06841009 A EP 06841009A EP 1973677 B1 EP1973677 B1 EP 1973677B1
Authority
EP
European Patent Office
Prior art keywords
wire
alloy
composite conductor
core
content
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.)
Not-in-force
Application number
EP06841009A
Other languages
German (de)
English (en)
Other versions
EP1973677A1 (fr
Inventor
Frank Pupke
Kurt Beyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NKT Cables GmbH and Co KG
Original Assignee
NKT Cables GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NKT Cables GmbH and Co KG filed Critical NKT Cables GmbH and Co KG
Priority to PL06841009T priority Critical patent/PL1973677T3/pl
Priority to SI200630364T priority patent/SI1973677T1/sl
Publication of EP1973677A1 publication Critical patent/EP1973677A1/fr
Application granted granted Critical
Publication of EP1973677B1 publication Critical patent/EP1973677B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 proposed composite conductor 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 consists of an alloy of CuMg with an Mg content of 0.1 to 0.7%.
  • 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 alloy present on the core side 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.
  • 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 strand-pressing 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 hardenability, and good wear characteristics 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 addition to its better electrical conductivity, is not susceptible to corrosion and also capable of being recycled.
  • 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 other forms, 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 (low or reduced ripple after rolling off the cable reel) is likely to affect that when using a relatively high degree of cold work after the Holton-Conform process, the solidification of the CuAg shell already in the saturation (thermodynamic Equilibrium) and the overall strength of the jacket is significantly lower than that 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. In the case of core wires with an extraneous-free, activated surface, it is ensured that a good material connection to the cladding material can be produced. Surface cleaning is important so that the tight material connection between core wire and sheathing is maintained during the further forming process.
  • 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.
  • 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 kernerahtget 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 contact 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 be produced, which still have a nearly round core wire.
  • the area fraction of the core wire in the cross section of the composite conductor can vary within wide limits (10 to 80%).
  • the area ratio 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.

Claims (9)

  1. Conducteur électrique composite formé d'un alliage de base en CuAg contenant une proportion d'Ag comprise entre 0,08 et 0,12%, dans lequel le bord (14) ou l'âme (20, 22) du conducteur composite (10, 11, 12) est formé(e) d'un alliage en CuMg contenant une proportion de Mg comprise entre 0,1 et 0,7%.
  2. Conducteur composite selon la revendication 1, caractérisé par le fait qu'une proportion de l'âme du conducteur (20, 22) dans l'aire de section transversale du conducteur composite (10, 11, 12) est comprise entre 10 et 80%.
  3. Conducteur composite selon la revendication 1 ou 2, caractérisé par le fait que l'âme (20, 22) est formée d'au moins un brin (20).
  4. Conducteur composite selon l'une des revendications précédentes, caractérisé par le fait que plusieurs brins de fil (22) sont disposés dans l'âme et les brins de fil (22) ont à peu près la même section transversale.
  5. Conducteur composite selon l'une des revendications précédentes, caractérisé par le fait que le conducteur composite (12) a une section transversale ronde.
  6. Conducteur composite selon l'une des revendications 1 à 4, caractérisé par le fait que le conducteur composite est exécuté en tant que fil rainuré (10, 11), notamment en tant que fil de contact.
  7. Conducteur composite selon l'une des revendications précédentes, caractérisé par le fait qu'aucun brin de fil n'est présent dans une zone périphérique correspondant à peu près à 10% du diamètre.
  8. Procédé de fabrication d'un conducteur composite comprenant un couple d'alliages selon la revendication 1, caractérisé par les étapes suivantes:
    - au moins un brin de fil (22) est fabriqué dans un premier alliage,
    - au moins un brin de fil (22) est introduit dans une installation d'extrudeuse et pourvu d'un enrobage (14) formé d'un deuxième alliage,
    - le conducteur composite (10, 11, 12) fabriqué est étiré au moins une fois à travers une filière, ce qui lui confère sa forme profilée définitive,
    le premier alliage étant un alliage en CuAg contenant une proportion d'Ag comprise entre 0,08 et 0,12% et le deuxième alliage étant un alliage en CuMg contenant une proportion de Mg comprise entre 0,1 et 0,7% ; ou bien le premier alliage étant un alliage en CuMg contenant une proportion de Mg comprise entre 0,1 et 0,7% et le deuxième alliage étant un alliage en CuAg contenant une proportion d'Ag comprise entre 0,08 et 0,12%.
  9. Procédé de fabrication d'un conducteur composite selon la revendication 10, caractérisé par le fait que la surface du ou des brin(s) de fil (22) est débarrassée d'une couche de matière étrangère avant l'enrobage.
EP06841009A 2005-12-20 2006-12-18 Conducteur electrique composite et procede pour sa fabrication Not-in-force EP1973677B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL06841009T PL1973677T3 (pl) 2005-12-20 2006-12-18 Przewód elektryczny i sposób jego wytwarzania
SI200630364T SI1973677T1 (sl) 2005-12-20 2006-12-18 Sestavljen elektriäśni prevodnik in postopek za njegovo proizvodnjo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005060809A DE102005060809B3 (de) 2005-12-20 2005-12-20 Elektrischer Verbundleiter
PCT/EP2006/012177 WO2007071355A1 (fr) 2005-12-20 2006-12-18 Conducteur electrique composite et procede pour sa fabrication

Publications (2)

Publication Number Publication Date
EP1973677A1 EP1973677A1 (fr) 2008-10-01
EP1973677B1 true EP1973677B1 (fr) 2009-06-03

Family

ID=37907125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841009A Not-in-force EP1973677B1 (fr) 2005-12-20 2006-12-18 Conducteur electrique composite et procede pour sa fabrication

Country Status (17)

Country Link
US (1) US7786387B2 (fr)
EP (1) EP1973677B1 (fr)
JP (1) JP2009520332A (fr)
KR (1) KR20080090398A (fr)
CN (1) CN101340987B (fr)
AT (1) ATE432780T1 (fr)
AU (1) AU2006329004A1 (fr)
CA (1) CA2633469A1 (fr)
DE (2) DE102005060809B3 (fr)
DK (1) DK1973677T3 (fr)
ES (1) ES2326552T3 (fr)
PL (1) PL1973677T3 (fr)
PT (1) PT1973677E (fr)
RU (1) RU2008129369A (fr)
SI (1) SI1973677T1 (fr)
WO (1) WO2007071355A1 (fr)
ZA (1) ZA200805250B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2808873A1 (fr) * 2013-05-28 2014-12-03 Nexans Fil conducteur électrique et son procédé de fabrication
RU2703564C1 (ru) * 2018-09-18 2019-10-21 Общество с ограниченной ответственностью "Научно-производственное предприятие "НАНОЭЛЕКТРО" Композитный контактный провод
CN110660499A (zh) * 2019-10-09 2020-01-07 中铁建电气化局集团康远新材料有限公司 大长度熔融渗透式铜钢复合线材及其电压对称接线方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216890C (fr)
GB8309875D0 (en) * 1983-04-12 1983-05-18 Babcock Wire Equipment Continuous extrusion apparatus
JPH01175535A (ja) * 1987-12-28 1989-07-12 Fujikura Ltd 銅被覆複合トロリ線
JPH0644412B2 (ja) 1989-04-10 1994-06-08 株式会社フジクラ 極細線用銅複合線材
GB9100317D0 (en) 1991-01-08 1991-02-20 Holton Machinery Ltd Co-axial cable
JPH06187851A (ja) 1992-12-18 1994-07-08 Hitachi Cable Ltd 架空送電線用繊維強化複合素線の製造方法及び製造装置
CN1032824C (zh) * 1993-09-06 1996-09-18 铁道部科学研究院机车车辆研究所 铜合金接触线
DE19539174C1 (de) * 1995-10-20 1997-02-27 Siemens Ag Oberleitungsfahrdraht einer elektrischen Hochgeschwindigkeitsbahnstrecke und Verfahren zu dessen Herstellung
JP4456696B2 (ja) * 1999-07-06 2010-04-28 住友電気工業株式会社 同軸ケーブル素線、同軸ケーブル、及び同軸ケーブルバンドル
JP2001148205A (ja) * 1999-11-19 2001-05-29 Hitachi Cable Ltd 超極細銅合金線材及びその製造方法
US7131308B2 (en) * 2004-02-13 2006-11-07 3M Innovative Properties Company Method for making metal cladded metal matrix composite wire
JP5306591B2 (ja) * 2005-12-07 2013-10-02 古河電気工業株式会社 配線用電線導体、配線用電線、及びそれらの製造方法

Also Published As

Publication number Publication date
SI1973677T1 (sl) 2009-12-31
AU2006329004A1 (en) 2007-06-28
JP2009520332A (ja) 2009-05-21
DK1973677T3 (da) 2009-09-07
CA2633469A1 (fr) 2007-06-28
RU2008129369A (ru) 2010-01-27
ES2326552T3 (es) 2009-10-14
PL1973677T3 (pl) 2009-11-30
ATE432780T1 (de) 2009-06-15
ZA200805250B (en) 2009-11-25
PT1973677E (pt) 2009-07-29
WO2007071355A1 (fr) 2007-06-28
KR20080090398A (ko) 2008-10-08
DE502006003916D1 (de) 2009-07-16
US20090075117A1 (en) 2009-03-19
EP1973677A1 (fr) 2008-10-01
CN101340987B (zh) 2012-07-25
CN101340987A (zh) 2009-01-07
DE102005060809B3 (de) 2007-09-20
US7786387B2 (en) 2010-08-31

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