US20070234542A1 - Method for Producing Metallic Flat Wires or Strips with a Cube Texture - Google Patents

Method for Producing Metallic Flat Wires or Strips with a Cube Texture Download PDF

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Publication number
US20070234542A1
US20070234542A1 US10/569,484 US56948404A US2007234542A1 US 20070234542 A1 US20070234542 A1 US 20070234542A1 US 56948404 A US56948404 A US 56948404A US 2007234542 A1 US2007234542 A1 US 2007234542A1
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US
United States
Prior art keywords
wire
forming
cold
strips
implemented
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.)
Abandoned
Application number
US10/569,484
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English (en)
Inventor
Joerg Eickemeyer
Dietmar Selbmann
Ralph Opitz
Bernhard Holzapfel
Horst Wendrock
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.)
Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
Original Assignee
Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
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 Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV filed Critical Leibniz Institut fuer Festkorper und Werkstofforschung Dresden eV
Assigned to LEIBNIZ-INSTITUT FUER FESTKOERPER-UND WERKSTOFFFORSCHUNG DRESDEN E.V. reassignment LEIBNIZ-INSTITUT FUER FESTKOERPER-UND WERKSTOFFFORSCHUNG DRESDEN E.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOLZAPFEL, BERNHARD, SELBMANN, DIETMAR, WENDROCK, HORST, EICKEMEYER, JOERG, OPITZ, RALPH
Publication of US20070234542A1 publication Critical patent/US20070234542A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N60/00—Superconducting devices
    • H10N60/01—Manufacture or treatment
    • H10N60/0268—Manufacture or treatment of devices comprising copper oxide
    • H10N60/0296—Processes for depositing or forming copper oxide superconductor layers
    • H10N60/0576—Processes for depositing or forming copper oxide superconductor layers characterised by the substrate
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5187—Wire working

Definitions

  • the invention relates to the field of materials science and to a method for producing metallic flat wires or strips with a cube texture that can be used, for example, as a base for physical-chemical coatings having a high-grade microstructural orientation.
  • the texture is hereby used as the basis for crystallographically oriented growth of the deposited layers on the substrate.
  • bases are suitable, for example, as substrates for metallic or ceramic coatings as used in the field of high-temperature superconductivity.
  • Such substrate strips for coated superconductors may be used in superconducting magnets, transformers, motors, tomography instruments, or superconducting current paths, i.e., cables.
  • Such textured metal strips may also be used as magnetic materials, such as highly permeable nickel-iron alloys, for example.
  • textured metal strips in particular nickel and silver strips, are currently used as a base for metallic coatings, ceramic buffer layers, and ceramic superconductor layers (A. Goyal et al.: U.S. Pat. No. 5,741,377, Apr. 21, 1998).
  • the suitability of such metal strips as substrate materials depends primarily on the achievable degree of texturing, and the quality thereof directly on the surface.
  • the formation of the recrystallization cube texture is above all linked to specific mechanical requirements for forming techniques.
  • a high minimum degree of forming is indispensable in cold rolling, a fine-grained starting structure of the shaped article being advantageous.
  • the minimum degree of forming for copper is 82% (O. Dahl, F. Pawlek: Z. Metallkde. 28 (1936) 266-271).
  • significantly higher degrees of forming are employed which sometimes involve greater than 99% reduction in thickness.
  • This manufacturing technology requiring very complex forming techniques is currently put up with, since alternative techniques have not been seen in decades. Therefore, in actual practice forming processes other than rolling currently do not play a role in the production of metal strips with a cube texture.
  • the object of the invention is to provide a method for producing metallic flat wires or strips with a cube texture, by means of which the products have a high-grade cube texture after the last forming step and the final annealing treatment.
  • a material based on nickel, copper, gold, or silver is processed into a wire having an essentially circular cross section by means of a cold drawing method with high-grade forming over multiple drawing stages, achieving a total cross-sectional reduction ⁇ g ⁇ 75% or a logarithmic deformation ⁇ g ⁇ 1.4.
  • the wire is then further processed by means of further forming and annealing methods into a metallic flat wire or a strip with a cube texture and having a width that can be adjusted in a defined manner, the defined width being determined and adjusted by means of the wire cross section and the degrees of forming of the further forming steps for the wire.
  • the cold drawing method advantageously is implemented with a total cross-sectional reduction of ⁇ g ⁇ 90% or a logarithmic deformation of ⁇ g ⁇ 2.3.
  • the method according to the invention uses metallic base materials which tend to form the cube texture after cold forming and subsequent recrystallization.
  • metallic base materials which tend to form the cube texture after cold forming and subsequent recrystallization.
  • These include metallic materials with cube face-centered lattices, such as nickel, copper, gold, and, under certain conditions, silver, as well as some of the alloys thereof.
  • these metallic base materials are processed by a high-grade cold drawing to produce a wire material having an essentially circular cross section.
  • These wires are further processed by the methods, known per se, of roll drawing using feely rotatable rollers, or drawing through drawing jaws arranged in parallel, or rolling to produce a metallic flat wire or a metallic strip, the cube texture being formed during the subsequent final recrystallization annealing known per se.
  • metallic flat wires are understood to mean articles produced from wires by means of cold forming, the width and thickness being primarily determined by the starting wire diameter and the degree of forming employed.
  • Metallic strips are understood to mean articles produced from precursor products by cold forming, the strip width being obtained by longitudinal division of wider products.
  • the high-grade cold drawing is carried out first by drawing the starting materials through drawing dies as commonly used in wire manufacturing.
  • the subsequent forming may be performed by rolling to produce strips, or by drawing of strips by use of rolling tools or drawing jaws.
  • Cold drawing as slip drawing through drawing dies is advantageously performed by use of drawing dies having drawing angles between 2° and 20°, and particularly advantageously with drawing angles ⁇ 12°, Cold drawing of the wire may thereby be carried out in the same direction (unidirectionally), or advantageously with respectively alternating drawing directions (reversibly).
  • the method according to the invention requires no intermediate treatments of the wire after drawing of the wire and before the further forming into metallic flat wires and metallic strips, which offers technological benefits.
  • the method according to the invention using cold drawing to produce a wire and further forming into a flat wire or strip and final annealing, for comparable reductions in thickness achieves at least the relative degree of texture of the cube layer as that resulting from the use of the cold rolling used heretofore, as well as from the cold drawing using rolling tools or drawing jaws.
  • the intensive wire drawing results in a structural state that is particularly favorable for forming the subsequent recrystallization cube texture.
  • the primary advantage of the novel method is that, as a result of the adjustment of defined wire diameters and the adjustment of the overall degree of forming in the subsequent forming steps for the wire, the width of the finished metallic flat wires or metallic strips becomes adjustable without the longitudinal division of wide strips which otherwise would be necessary.
  • there is no complex edge processing so that the equipment for both longitudinal division and edge processing may be omitted in the assembly line.
  • the method operates without material losses, which necessarily occur as the result of cutting edge strips, and without metal-cutting products, which are unavoidable in edge processing. Technological steps are thereby omitted which also tend to consistently impair the surface quality of the sensitive strips.
  • wire drawing method is a well-known forming method, its influence on the forming and annealing textures in metallic flat wires or metallic bands produced from wires has not been investigated heretofore.
  • melt metallurgical production of the metals and alloys to be textured is preferably carried out by casting into a copper mold.
  • powder metallurgical production using hot and cold isostatic pressing may also be appropriate for the starting material.
  • the metallurgically produced cast or pressed bodies may acquire an advantageous starting structure by homogenization annealing, and the grain size may be adjusted in a controlled manner for the final intensive cold forming.
  • the degree of heat forming as well as the temperature and duration of annealing may be easily optimized in the subsequent process by one skilled in the art.
  • the annealing atmosphere for the recrystallization advantageously is reducing or inert.
  • the annealing temperatures and times tend towards changed values with increasing alloy content, and likewise may be easily adjusted by one skilled in the art.
  • a wire having an essentially circular cross section may also be used as starting product for the flat wire or strip production without resulting disadvantageous effects on the cube texture in the flat wire or strip to be ultimately produced.
  • the drawing and annealing textures in wires are fiber textures, and consequently are characterized by a single preferred direction, the wire axis. It was therefore surprising that a high-grade drawn wire having a fiber texture could be prepared by means of comparatively minor subsequent flat forming to form a biaxial recrystallization cube texture.
  • the wire is then cold rolled, without intermediate treatment, into a flat wire having final dimensions of 1.9 mm width and 60 ⁇ m thickness.
  • the flat wire is finally subjected to a heat treatment at 1100° C. over a period of 1 hour, forming a sharply defined cube texture as used for bases for coating with epitactically grown layers.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Wire Processing (AREA)
  • Continuous Casting (AREA)
US10/569,484 2003-08-25 2004-08-20 Method for Producing Metallic Flat Wires or Strips with a Cube Texture Abandoned US20070234542A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10339867.8 2003-08-25
DE10339867A DE10339867B4 (de) 2003-08-25 2003-08-25 Verfahren zur Herstellung von metallischen Flachdrähten oder Bändern mit Würfeltextur
PCT/EP2004/051853 WO2005023445A1 (fr) 2003-08-25 2004-08-20 Procede de fabrication de fils plats ou de bandes metalliques presentant une texture cubique

Publications (1)

Publication Number Publication Date
US20070234542A1 true US20070234542A1 (en) 2007-10-11

Family

ID=34258275

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/569,484 Abandoned US20070234542A1 (en) 2003-08-25 2004-08-20 Method for Producing Metallic Flat Wires or Strips with a Cube Texture

Country Status (8)

Country Link
US (1) US20070234542A1 (fr)
EP (1) EP1660250B1 (fr)
JP (1) JP4664915B2 (fr)
KR (1) KR101115625B1 (fr)
CN (1) CN1842380A (fr)
AT (1) ATE368533T1 (fr)
DE (2) DE10339867B4 (fr)
WO (1) WO2005023445A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090191424A1 (en) * 2008-01-28 2009-07-30 Lee Jun-Der Manufacturing method for a composite metal wire used as a packaging wire and products thereof
DE102008001005A1 (de) 2008-04-04 2009-10-22 Forschungszentrum Karlsruhe Gmbh Verfahren zur Herstellung eines Schichtverbundes mit epitaktisch gewachsenen Schichten aus einem magnetischen Formgedächtnis-Material und Schichtverbund mit epitaktischen Schichten aus einem magnetischen Formgedächtnis-Material sowie deren Verwendung
CN102251201A (zh) * 2011-07-07 2011-11-23 广东省钢铁研究所 一种高纯镍丝的制备方法
US9492856B2 (en) 2007-03-02 2016-11-15 Yazaki Corporation Element wire, electric wire and process for producing element wire
IT202000016903A1 (it) * 2020-07-13 2022-01-13 Company Trafil Production Srl Conduttori elettrici per trasformatori di potenza ad elevata conducibilità elettrica e termica.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010031058A1 (de) 2010-07-07 2012-01-12 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Metallischer Profildraht mit Rekristallisationswürfeltextur und Verfahren zu dessen Herstellung
CN108220800A (zh) * 2017-12-28 2018-06-29 东莞科力线材技术有限公司 一种打蛋器用表面银亮弧边扁线的制备方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280857A (en) * 1979-11-05 1981-07-28 Aluminum Company Of America Continuous draw anneal system
US4495691A (en) * 1981-03-31 1985-01-29 Tsuyoshi Masumoto Process for the production of fine amorphous metallic wires
US5106825A (en) * 1987-07-31 1992-04-21 Olin Corporation Fabrication of superconducting wire and product
US5739086A (en) * 1995-04-10 1998-04-14 Lockheed Martin Energy Systems, Inc. Structures having enhanced biaxial texture and method of fabricating same
US6024080A (en) * 1997-07-07 2000-02-15 Laser Technology West Limited Apparatus and method for slicing a workpiece utilizing a diamond impregnated wire
US6449997B1 (en) * 1998-07-27 2002-09-17 I.F.I.Co.M. S.R.L. Immobiliare Finanziaria Process for metal wire drawing and a tool for actuating the process
US6458223B1 (en) * 1997-10-01 2002-10-01 American Superconductor Corporation Alloy materials
US20040003768A1 (en) * 2002-07-03 2004-01-08 Amit Goyal Textured substrate tape and devices thereof
US6715331B1 (en) * 2002-12-18 2004-04-06 The Goodyear Tire & Rubber Company Drawing of steel wire
US20040238085A1 (en) * 2001-08-30 2004-12-02 Joerg Eickemeyer Method for producing metallic strips

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152314A (en) * 1981-03-18 1982-09-20 Furukawa Electric Co Ltd:The Manufacture of flat square wire
JPS6092011A (ja) * 1983-10-21 1985-05-23 Sumitomo Electric Ind Ltd 超極細線導体の製造方法
DE3634242C1 (en) * 1986-10-08 1988-02-18 Heraeus Gmbh W C Process for manufacturing a metallic semi-finished product
JPH06320214A (ja) * 1993-05-11 1994-11-22 Saikawa:Kk 連続伸線圧延方法及びその装置
DK1208244T3 (da) * 1999-04-03 2004-09-20 Leibniz Inst Fuer Festkoerper Metallisk materiale på nikkelbasis og fremgangsmåde til fremstilling deraf
DE20117301U1 (de) * 2001-09-25 2002-01-31 Karl Fuhr Gmbh & Co Kg Vorrichtung für die Herstellung metallener Flachbandleiter

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280857A (en) * 1979-11-05 1981-07-28 Aluminum Company Of America Continuous draw anneal system
US4495691A (en) * 1981-03-31 1985-01-29 Tsuyoshi Masumoto Process for the production of fine amorphous metallic wires
US5106825A (en) * 1987-07-31 1992-04-21 Olin Corporation Fabrication of superconducting wire and product
US5968877A (en) * 1995-04-10 1999-10-19 Lockheed Martin Energy Research Corp High Tc YBCO superconductor deposited on biaxially textured Ni substrate
US5741377A (en) * 1995-04-10 1998-04-21 Martin Marietta Energy Systems, Inc. Structures having enhanced biaxial texture and method of fabricating same
US5898020A (en) * 1995-04-10 1999-04-27 Goyal; Amit Structures having enhanced biaxial texture and method of fabricating same
US5739086A (en) * 1995-04-10 1998-04-14 Lockheed Martin Energy Systems, Inc. Structures having enhanced biaxial texture and method of fabricating same
US6024080A (en) * 1997-07-07 2000-02-15 Laser Technology West Limited Apparatus and method for slicing a workpiece utilizing a diamond impregnated wire
US6458223B1 (en) * 1997-10-01 2002-10-01 American Superconductor Corporation Alloy materials
US6449997B1 (en) * 1998-07-27 2002-09-17 I.F.I.Co.M. S.R.L. Immobiliare Finanziaria Process for metal wire drawing and a tool for actuating the process
US20040238085A1 (en) * 2001-08-30 2004-12-02 Joerg Eickemeyer Method for producing metallic strips
US20040003768A1 (en) * 2002-07-03 2004-01-08 Amit Goyal Textured substrate tape and devices thereof
US6715331B1 (en) * 2002-12-18 2004-04-06 The Goodyear Tire & Rubber Company Drawing of steel wire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9492856B2 (en) 2007-03-02 2016-11-15 Yazaki Corporation Element wire, electric wire and process for producing element wire
US20090191424A1 (en) * 2008-01-28 2009-07-30 Lee Jun-Der Manufacturing method for a composite metal wire used as a packaging wire and products thereof
DE102008001005A1 (de) 2008-04-04 2009-10-22 Forschungszentrum Karlsruhe Gmbh Verfahren zur Herstellung eines Schichtverbundes mit epitaktisch gewachsenen Schichten aus einem magnetischen Formgedächtnis-Material und Schichtverbund mit epitaktischen Schichten aus einem magnetischen Formgedächtnis-Material sowie deren Verwendung
CN102251201A (zh) * 2011-07-07 2011-11-23 广东省钢铁研究所 一种高纯镍丝的制备方法
IT202000016903A1 (it) * 2020-07-13 2022-01-13 Company Trafil Production Srl Conduttori elettrici per trasformatori di potenza ad elevata conducibilità elettrica e termica.
WO2022013138A1 (fr) * 2020-07-13 2022-01-20 Company Trafil Production Srl Conducteurs électriques pour transformateurs de puissance à haute conductivité électrique et thermique

Also Published As

Publication number Publication date
JP2007503314A (ja) 2007-02-22
DE10339867B4 (de) 2007-12-27
WO2005023445A1 (fr) 2005-03-17
EP1660250A1 (fr) 2006-05-31
DE502004004525D1 (de) 2007-09-13
CN1842380A (zh) 2006-10-04
DE10339867A1 (de) 2005-04-07
JP4664915B2 (ja) 2011-04-06
KR101115625B1 (ko) 2012-02-17
KR20060119885A (ko) 2006-11-24
EP1660250B1 (fr) 2007-08-01
ATE368533T1 (de) 2007-08-15

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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EICKEMEYER, JOERG;SELBMANN, DIETMAR;OPITZ, RALPH;AND OTHERS;REEL/FRAME:017611/0185;SIGNING DATES FROM 20060222 TO 20060315

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