EP2808873A1 - Fil conducteur électrique et son procédé de fabrication - Google Patents

Fil conducteur électrique et son procédé de fabrication Download PDF

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Publication number
EP2808873A1
EP2808873A1 EP13305693.7A EP13305693A EP2808873A1 EP 2808873 A1 EP2808873 A1 EP 2808873A1 EP 13305693 A EP13305693 A EP 13305693A EP 2808873 A1 EP2808873 A1 EP 2808873A1
Authority
EP
European Patent Office
Prior art keywords
wire
core
copper
layer
copper alloy
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.)
Ceased
Application number
EP13305693.7A
Other languages
German (de)
English (en)
Other versions
EP2808873A8 (fr
Inventor
Henning Tepe
Wolfgang Placke
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Priority to EP13305693.7A priority Critical patent/EP2808873A1/fr
Priority to US14/286,229 priority patent/US20140353002A1/en
Priority to CN201410220140.XA priority patent/CN104217784A/zh
Priority to KR1020140063777A priority patent/KR20140139981A/ko
Publication of EP2808873A1 publication Critical patent/EP2808873A1/fr
Publication of EP2808873A8 publication Critical patent/EP2808873A8/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
    • 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
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/20—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of essentially unlimited length
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment

Definitions

  • the invention relates to a built-up on the basis of copper, electrically conductive wire and a method for its preparation.
  • Such a wire is used for example for electrical conductors in different forms.
  • Such a wire containing copper conductors have long been known for a variety of applications. They are used, for example, in electrical connection lines, in communications cables and in high-voltage or high-voltage cables.
  • copper conductors can have different cross sections. They can be designed as a solid conductor or as a stranded conductor, in which a larger number of copper wires is stranded together.
  • the material used for the copper conductors may also have different properties depending on the application, on the one hand, for example, a good electrical conductivity and on the other hand, for example, a high mechanical strength to be achieved.
  • electrically conductive copper conductors can also be combined with aluminum and copper conductors with high mechanical strength are connected to steel elements, for example. In all cases, the copper conductor is specifically designed according to the requirements of the respective application.
  • the invention has for its object to provide a copper-containing, electrically conductive wire and a manufacturing method for the same, which can be easily adapted to different properties.
  • a wire which has a core and a metallically connected thereto and the same surrounding layer, in which the core has a proportion between 20% and 50% of the cross section of the wire, while the layer has a corresponding, between 80% and 50% of the wire cross section, the core on the one hand and the layer surrounding it on the other hand being made of different materials based on copper.
  • either the core of unalloyed copper and the same surrounding layer may consist of a copper alloy or vice versa.
  • the term "unalloyed copper" as a material for the wire in the context of the invention basically describes a copper material as defined in the standard DIN EN 1977: 2013-04 (Tables 1 and 2).
  • either the core may consist of a first copper alloy and the same surrounding layer of a second copper alloy with respect to the first copper alloy other alloy material or vice versa.
  • the wire according to the invention thus consists either of unalloyed copper and a copper alloy or of two different copper alloys. It is thus constructed in both cases of two different copper materials, wherein it can be carried out by varying the proportions of different copper materials with different properties. Only the two different copper-based materials are used for this purpose, which alone, with their variable proportions on the overall cross-section of the wire and their exchangeable arrangement in the core or in the same surrounding layer, enable the different properties of the wire. Different properties are the electrical conductivity on the one hand and the mechanical properties on the other hand. A larger proportion of copper leads to improved electrical conductivity, while an increased proportion of a copper alloy affects the mechanical properties of the wire.
  • a core is first prefabricated, which consists of either unalloyed copper or a copper alloy.
  • the core is then pulled through a bath containing the material intended for the outer layer in a molten state in which a layer is applied all around, for example, in a core of unalloyed copper from a Copper alloy and a core of a copper alloy consists of unalloyed copper.
  • a layer is applied all around, for example, in a core of unalloyed copper from a Copper alloy and a core of a copper alloy consists of unalloyed copper.
  • the existing of the core and the same layer surrounding wire can be supplied after leaving the bath to reduce its diameter of a roller unit.
  • the diameter of the wire can be reduced to an advantage in an additional pulling device substantially to an extent with which it is suitable for the production of an existing of a plurality of wires electrical stranded conductor.
  • Targeted annealing also allows the core surrounding layer of the wire to be annealed while the core remains hard, for example. However, it is also possible to soften the core while leaving the material of the outer layer hard.
  • Fig. 1 is a cross section of an electrically conductive wire D is shown, which has a core 1 and a surrounding the same layer 2.
  • Core 1 and layer 2 are metallically bonded together. They consist of different materials based on copper.
  • the core 1 consists of unalloyed copper, while the layer 2 consists of a copper alloy.
  • This embodiment of the wire D can be varied by replacing the two materials specified.
  • the core 1 then consists of a copper alloy while the layer 2 consists of unalloyed copper.
  • alloy materials for the copper alloy can be used with advantage silver or tin or magnesium. These alloy materials cause compared to the use of only unalloyed copper improved mechanical properties of the wire D, in particular based on its tensile strength, breaking strength and / or its alternating bending strength.
  • core 1 and layer 2 consist of two different copper alloys, for which the alloying materials specified in the foregoing can be used and which, analogously to the first embodiment of the wire D, can be inserted either in the core 1 or in the layer 2.
  • the core 1 may consist of a copper-tin alloy and the layer 2 may consist of a copper-silver alloy or vice versa.
  • the tensile strength of the wire D increases, while its electrical conductivity is not significantly affected.
  • a contrast increased tensile strength of the wire D results, for example, when using tin in the copper alloy, but with reduced electrical conductivity.
  • the addition of magnesium to the copper alloy increases, for example, the alternating bending property of the wire D, at an electrical conductivity corresponding to the copper alloy with tin as alloy material.
  • core 1 and layer 2 may be different for the same dimensions of the wire D.
  • the core 1 has a proportion between 20% and 50% of the total cross section of the wire D.
  • the proportion of the layer 2 is then between 80% and 50%.
  • the wire D can accordingly Fig. 2
  • Fig. 2 For example, be prepared as follows:
  • a prefabricated, wire-shaped core 1 made of unalloyed copper, for example, withdrawn in the direction of arrow P from a coil not shown with and a bath 3, in which contain a copper alloy in a molten state is.
  • the core 1 is pulled through the bath 3, whereby the layer 2 is applied all around it. It combines metallically with the core 1.
  • the thickness of the layer 2 is set by the speed at which the core 1 is pulled through the bath 3. This means that the slower the core 1 is drawn through the bath 3, the thicker the layer 2 is.
  • This method applies analogously to a core 1 made of the copper alloy and a unalloyed copper in the molten state containing bath 3 to produce the layer 2. It applies analogously to the second embodiment of the wire 2 with two different copper alloys.
  • the finished after leaving the bath 3 wire D could be wound up after sufficient cooling of the layer 2 on a spool. However, it can be pulled with advantage initially by a roller unit 4, in which the diameter of the wire D is reduced and at the same time the metallic composite between the core 1 and layer 2 are solidified.
  • the wire D can additionally also by a in Fig. 2 drawn dashed drawing device 5 are drawn in which its diameter is significantly reduced.
  • a wire for example, with a diameter of 0.1 mm can be advantageously processed with a larger number of equal sized wires, for example, to a stranded electrical conductor.
  • the properties of the wire D can be further adjusted by targeted annealing, for example, to obtain a "semi-hard" wire.
  • the core 1 remain hard, while the layer 2 is annealed to influence its expansion or flexibility properties. But it is also possible to glow softly the core 1 and the layer 2 of it unaffected, that is hard to leave.
  • the core 1 made of unalloyed copper or a copper alloy has a diameter of 4.89 mm. Its cross-sectional area is thus 18.81 mm 2 .
  • the proportion of the core 1 in the total cross section of the wire D is therefore 37%.
  • the existing of a copper alloy or unalloyed copper layer 2 has a thickness of 1.55 mm. It has a cross-sectional area of 31.45 mm and a proportion of 63% of the total cross section of the wire D.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Non-Insulated Conductors (AREA)
  • Conductive Materials (AREA)
EP13305693.7A 2013-05-28 2013-05-28 Fil conducteur électrique et son procédé de fabrication Ceased EP2808873A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13305693.7A EP2808873A1 (fr) 2013-05-28 2013-05-28 Fil conducteur électrique et son procédé de fabrication
US14/286,229 US20140353002A1 (en) 2013-05-28 2014-05-23 Electrically conductive wire and method of its production
CN201410220140.XA CN104217784A (zh) 2013-05-28 2014-05-23 电导线及其制造方法
KR1020140063777A KR20140139981A (ko) 2013-05-28 2014-05-27 전도성 와이어 및 그 제조 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13305693.7A EP2808873A1 (fr) 2013-05-28 2013-05-28 Fil conducteur électrique et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP2808873A1 true EP2808873A1 (fr) 2014-12-03
EP2808873A8 EP2808873A8 (fr) 2015-01-07

Family

ID=48628586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13305693.7A Ceased EP2808873A1 (fr) 2013-05-28 2013-05-28 Fil conducteur électrique et son procédé de fabrication

Country Status (4)

Country Link
US (1) US20140353002A1 (fr)
EP (1) EP2808873A1 (fr)
KR (1) KR20140139981A (fr)
CN (1) CN104217784A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112599297B (zh) * 2016-03-31 2022-11-22 株式会社自动网络技术研究所 通信用电线
JP6075490B1 (ja) 2016-03-31 2017-02-08 株式会社オートネットワーク技術研究所 通信用シールド電線
CN111448651A (zh) * 2017-12-11 2020-07-24 宋文燮 接合线制造方法及其制造装置
DE102021111558B4 (de) 2021-05-04 2022-12-01 Te Connectivity Germany Gmbh Verfahren zur Bearbeitung eines Halbzeugs für ein elektrisches Kontaktelement, Halbzeug für ein elektrisches Kontaktelement

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GB508330A (en) * 1937-04-02 1939-06-29 Philips Nv Improvements in or relating to wire-shaped bodies of high tensile strength and smallspecific resistance
EP1717020A1 (fr) * 2005-04-25 2006-11-02 Nexans Société Anonyme Câble avec conducteur central en aluminium
US20070202349A1 (en) * 2006-02-24 2007-08-30 Hon Hai Precision Industry Co., Ltd. Copper-silver alloy wire and method for manufacturing the same
DE202006016454U1 (de) * 2006-10-27 2007-01-04 Nexans Koaxiale elektrische Leitung mit kleinen Querschnittsabmessungen
EP2285180A1 (fr) * 2009-08-13 2011-02-16 Nexans Conducteur thermique électrique
DE202011108573U1 (de) * 2011-12-02 2012-01-16 Elektrisola Feindraht Ag Draht zum Leiten eines elektrischen Stroms

Also Published As

Publication number Publication date
KR20140139981A (ko) 2014-12-08
CN104217784A (zh) 2014-12-17
US20140353002A1 (en) 2014-12-04
EP2808873A8 (fr) 2015-01-07

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