EP0542382B1 - Procédé pour la fabrication de produits laminés en cuivre exempt d'oxygène - Google Patents

Procédé pour la fabrication de produits laminés en cuivre exempt d'oxygène Download PDF

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Publication number
EP0542382B1
EP0542382B1 EP92250020A EP92250020A EP0542382B1 EP 0542382 B1 EP0542382 B1 EP 0542382B1 EP 92250020 A EP92250020 A EP 92250020A EP 92250020 A EP92250020 A EP 92250020A EP 0542382 B1 EP0542382 B1 EP 0542382B1
Authority
EP
European Patent Office
Prior art keywords
casting
deformation
plant
oxygen
strip
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.)
Expired - Lifetime
Application number
EP92250020A
Other languages
German (de)
English (en)
Other versions
EP0542382A1 (fr
Inventor
Lev Petrovich Freedman
Yermek B. Khafizov
Elmar Buch
Kurt Siebel
Herbert Berendes
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0542382A1 publication Critical patent/EP0542382A1/fr
Application granted granted Critical
Publication of EP0542382B1 publication Critical patent/EP0542382B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0697—Accessories therefor for casting in a protected atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/003—Rolling non-ferrous metals immediately subsequent to continuous casting, i.e. in-line rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/005—Copper or its alloys

Definitions

  • the invention relates to a method and a device for carrying out the method for producing rolling stock from oxygen-free copper, in particular wire in a casting and rolling plant, consisting of a melting plant, a casting plant and a downstream continuous rolling mill.
  • a method and a device corresponding to this type can be found in US-A-4290823.
  • the aim of the present invention is to provide a method and a device for carrying out the method, with which it is possible to produce oxygen-free copper wire in-line in a casting and rolling plant of the generic type.
  • the basis of the invention is the knowledge that the phenomenon of hydrogen disease known in the art is not relevant to oxygen-free copper.
  • the present invention proposes that, starting from the method according to the preamble of claim 1, the ingot leaving the casting plant in a straight line the horizontal is bent after it has been reduced in at least one deformation stitch, the deformation stitch of the ingot and the melting and casting process taking place in a protective gas atmosphere.
  • the invention therefore consists in reducing the grain sizes of the copper by deforming the copper ingot immediately behind the mold and thereby preventing larger hydrogen bubbles from forming at the grain boundaries.
  • the fine structure largely prevents the deep penetration of the hydrogen and thus represents an effective remedy against the crack and fracture sensitivity of the copper bar.
  • the first deformation stitch is preferably carried out close behind the casting installation.
  • the bending of the copper ingot after the first or, if necessary, several reduction stitches in a protective gas atmosphere is harmless due to the reduced grain size and no longer leads to the cracks that could not previously be prevented.
  • a casting and rolling plant for carrying out the method according to the invention is characterized by the combination of features according to claim 4.
  • the deformation unit arranged close to the casting machine is thus arranged at the same inclination as the casting system, it being possible, if appropriate, to provide further devices for preparing the ingot (edge milling device, driver, etc.) between the casting system and the first deformation framework.
  • the single drawing figure shows a schematic representation of a casting and rolling plant according to the invention. It consists of the melting furnace 1, the holding furnace 2, the pouring channel 3, the tundish 4, the pouring spout 5 of which protrudes into the area of the strip casting mold 6, the driver 7, the edge processing device 8 and the deformation frame 9.
  • the melt in the melting furnace 1 and also in the holding furnace 2 is covered with charcoal to avoid oxygen absorption.
  • the invention also provides for the melting furnace 1, the holding furnace 2, the casting trough 3 and the casting trough 4 to be housed and these units to be operated in a protective gas atmosphere.
  • the housing is marked with H. All facilities are as tight as possible and - contrary to the usual gas heating - are inductively heated.
  • the Nitrogen is preferably blown in the direction of the material flow and flows towards the tundish, where it emerges together with the molten copper.
  • the nitrogen flowing out of the tundish 4 protects the inlet area of the belt casting mold 6 against oxygen absorption due to its specific weight against air.
  • mudguard structures on the side can cause the nitrogen to have a longer dwell time in this area and thus offer protection from oxygen.
  • the housings continue behind the belt casting mold 6; they include driver 7, edge processing device 8 and deformation stand 9 and possibly also the bending area 10. Following the deformation stand 9, the ingot in the turning area 10 is diverted from the casting direction into the horizontal, as is in accordance with the teaching of the invention.
  • the system works as follows: The copper melt located in the melting furnace 1 is temporarily stored in the holding furnace 2 and passed through the trough 3 into the tundish 4. All units are sealed in a housing H, a protective gas atmosphere is created inside the housing H. From the tundish 4, through which nitrogen flows, the copper melt reaches the strip casting mold, in which a copper ingot is poured between the strip-shaped mold sides, which leaves the strip casting mold 6 in the casting direction after solidification.
  • the copper bar which has a temperature of 980 to 1000 ° C., is driven into the Edge processing device 8, a milling machine, introduced where the edges of the billet are chamfered.
  • the copper bar prepared in this way is then introduced into the forming frame.
  • the construction of the deformation stand must have features which are unusual in the case of roughing stands in copper wire systems.
  • the tip of the copper bar, on which the starting piece is still located, must be able to pass through the deformation frame 9 without deformation. Therefore, the rollers of the deformation stand 9 are first opened. When the desired strand speed is reached, the rolls are automatically closed until the preselected reduction is reached. For this purpose it is necessary that the speed of the rollers is determined and regulated depending on the respective deformation. This can be achieved by measuring the speed and current consumption of the driver 7.
  • a reduction in the stitch of approx. 35% takes place in the deformation stand 9.
  • the reduced copper ingot in the bending area 10 of the system is moved horizontally on a roller table and reduced to wire in further rolling stands of the continuous rolling mill 11. This copper wire produced in this way is bundled at the end (not shown) of the casting and rolling system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (4)

  1. Procédé pour la réalisation de produits laminés en cuivre exempt d'oxygène, en particulier du fil métallique, dans une installation de laminage de coulée continue constituée d'une installation de fusion (1), d'une coquille de coulée continue (6), ainsi que d'une unité de laminage continue (11) montée en aval,
    caractérisé en ce que le lingot quittant l'installation de coulée continue (3,4,6) sous forme rectiligne est cintré dans l'horizontale, après avoir été réduit dans au moins une passe de déformation, la passe de déformation du lingot et le processus de fusion et de coulée continue étant effectués dans une atmosphère à gaz inerte.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la première passe de déformation est réalisée tout près de l'installation de coulée continue (3,4,6) derrière celle-ci.
  3. Procédé selon l'une des revendications 1 ou 2,
    caractérisé en ce que la réduction représente lors de la première passe de déformation entre 10 et 50 %, de préférence 35 %.
  4. Installation de laminage de coulée continue pour la réalisation de produits laminés en cuivre exempt d'oxygène, en particulier du fil métallique, constituée d'une installation de fusion (1), d'une coquille de coulée continue (6), ainsi que d'une unité de laminage continue (11) montée en aval,
    caractérisée par l'agencement d'au moins un bâti de déformation (9) derrière la coquille de coulée continue en bande (6), l'axe de laminage du bâti de déformation (9) étant de même axe que l'axe longitudinal central de la coquille de coulée continue en bande (6) et la zone entre le four de fusion (1) et la coquille de coulée continue en bande (6), ainsi qu'entre la coquille de coulée continue en bande (6) et le ou les premier(s) bâti(s) de déformation (9) étant agencée sous un boîtier (H) muni de moyens pour engendrer une atmosphère à gaz inerte à l'intérieur de celui-ci.
EP92250020A 1991-10-30 1992-01-27 Procédé pour la fabrication de produits laminés en cuivre exempt d'oxygène Expired - Lifetime EP0542382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4136085 1991-10-30
DE4136085A DE4136085C2 (de) 1991-10-30 1991-10-30 Verfahren zum herstellen von sauerstoffreiem kupferdraht

Publications (2)

Publication Number Publication Date
EP0542382A1 EP0542382A1 (fr) 1993-05-19
EP0542382B1 true EP0542382B1 (fr) 1994-11-02

Family

ID=6443923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250020A Expired - Lifetime EP0542382B1 (fr) 1991-10-30 1992-01-27 Procédé pour la fabrication de produits laminés en cuivre exempt d'oxygène

Country Status (6)

Country Link
US (1) US5366001A (fr)
EP (1) EP0542382B1 (fr)
JP (1) JP3244546B2 (fr)
AU (1) AU663528B2 (fr)
DE (2) DE4136085C2 (fr)
ES (1) ES2063564T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240494A (en) * 1991-04-25 1993-08-31 Asarco Incorporated Method for melting copper
US6531039B2 (en) 2001-02-21 2003-03-11 Nikko Materials Usa, Inc. Anode for plating a semiconductor wafer
DE10112621A1 (de) * 2001-03-14 2002-09-19 Km Europa Metal Ag Anordnung zum Abgießen einer aus einer Kupferlegierung bestehenden Gießschmelze
US20070227688A1 (en) * 2004-06-15 2007-10-04 Tosoh Smd, Inc. Continuous Casting of Copper to Form Sputter Targets
US20060124271A1 (en) * 2004-12-13 2006-06-15 Mark Schlichting Method of controlling the formation of crocodile skin surface roughness on thin cast strip
US7891407B2 (en) * 2004-12-13 2011-02-22 Nucor Corporation Method and apparatus for localized control of heat flux in thin cast strip
CN100491001C (zh) * 2005-09-09 2009-05-27 江苏兴荣高新科技股份有限公司 一种制造铜及铜合金带材的铸轧加工方法
CN1307015C (zh) * 2005-10-08 2007-03-28 刘瑞 一种无氧铜带坯生产装置
JP4934438B2 (ja) * 2007-01-17 2012-05-16 古河電気工業株式会社 無酸素銅線または銅合金線の製造方法およびその装置
CN101224544B (zh) * 2008-01-30 2010-06-02 江阴华电新材料有限公司 高强、高导引线框架铜合金带材的生产方法
CN102500615B (zh) * 2011-10-21 2014-08-13 厦门虹鹭钨钼工业有限公司 一种制造钨铜合金棒丝材的方法
CN103921071B (zh) * 2014-04-16 2016-04-20 黄学志 无氧铜排生产工艺
CN114570900B (zh) * 2022-03-03 2024-02-02 大连交通大学 一种铜及铜合金连续铸挤成形的装置及方法
KR102589057B1 (ko) * 2022-05-10 2023-10-12 엘에스전선 주식회사 무산소동 또는 무산소동 합금의 제조 방법 및 장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264289A (en) * 1939-08-22 1941-12-02 American Smelting Refining Process and apparatus for casting metal
US3089209A (en) * 1960-01-06 1963-05-14 American Smelting Refining Method for continuous casting of metal
US3257835A (en) * 1964-11-12 1966-06-28 Southwire Co Method of hot forming metal
LU56492A1 (fr) * 1968-07-15 1970-01-15
BE806327A (fr) * 1973-10-22 1974-04-22 Metallurgie Hoboken Procede de fabrication de fil machine de cuivre
CA1106633A (fr) * 1977-10-05 1981-08-11 Clovis Labrecque Dispositif de blocage pour enjoliveur de roue
DE3036595A1 (de) * 1980-09-27 1982-05-13 Willi-Friedrich 3384 Liebenburg Oppermann Verfahren zur gemeinsamen fertigung von baendern, profilen und draehten aus metallen in einer linie
JPS58360A (ja) * 1981-04-20 1983-01-05 ヘイズレツト・ストリツプ・キヤステイング・コ−ポレ−シヨン 陽極製造用二重ベルト鋳造機より退去した後の新しく鋳造された銅製品の酸化を防止する方法および装置
JPS63171255A (ja) * 1987-01-09 1988-07-15 Sumitomo Metal Ind Ltd 未凝固圧延方法
US4754803A (en) * 1987-02-02 1988-07-05 Phelps Dodge Industries, Inc. Manufacturing copper rod by casting, hot rolling and chemically shaving and pickling

Also Published As

Publication number Publication date
JP3244546B2 (ja) 2002-01-07
AU2738792A (en) 1993-05-06
AU663528B2 (en) 1995-10-12
DE4136085A1 (de) 1993-05-06
JPH06106205A (ja) 1994-04-19
ES2063564T3 (es) 1995-01-01
US5366001A (en) 1994-11-22
DE59200731D1 (de) 1994-12-08
EP0542382A1 (fr) 1993-05-19
DE4136085C2 (de) 1993-11-04

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