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EP0545510A1 - Procédé pour la production des produits long d'acier - Google Patents

Procédé pour la production des produits long d'acier Download PDF

Info

Publication number
EP0545510A1
EP0545510A1 EP92250347A EP92250347A EP0545510A1 EP 0545510 A1 EP0545510 A1 EP 0545510A1 EP 92250347 A EP92250347 A EP 92250347A EP 92250347 A EP92250347 A EP 92250347A EP 0545510 A1 EP0545510 A1 EP 0545510A1
Authority
EP
European Patent Office
Prior art keywords
strand
cross
deformation
sectional shape
shape
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
Application number
EP92250347A
Other languages
German (de)
English (en)
Other versions
EP0545510B1 (fr
Inventor
Fritz-Peter Pleschiutschnigg
Winfried Binder
Lothar Parschat
Klaus BRÜCKNER
Dieter Stalleicken
Ingo Von Hagen
Werner Rahmfeld
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 EP0545510A1 publication Critical patent/EP0545510A1/fr
Application granted granted Critical
Publication of EP0545510B1 publication Critical patent/EP0545510B1/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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands

Definitions

  • the invention relates to a method for producing long products from steel by continuous casting in a continuous casting mold.
  • the invention is therefore based on the problem of eliminating the disadvantages described and of influencing the strand in its solidification in the continuous casting of steel in such a way that centering is suppressed or practically avoided.
  • the method steps according to the invention achieve a refinement of the crystal structure and a higher degree of casting close to the final dimensions, since the casting cross section can also be used to switch from Bloom dimensions to billet dimensions.
  • the invention opens another in-line production line for long products.
  • the product leaving the continuous caster is said to be a billet of square cross-section with an edge length of 100 mm.
  • a round strand 2 with a diameter of 127.4 mm is poured into a continuous casting mold 1 of conventional design.
  • the diameter of 127.4 mm corresponds to a strand circumference of 400 mm and a cross-sectional area of 12,741 mm2.
  • Below the mold the strand is guided by rollers 3 on an arc.
  • the radius 4 of the arc is approximately 7000 mm in accordance with the arcuate mold 1. With a strand withdrawal speed of 5 m / min, the metallurgical length is approximately 15000 mm.
  • the strand 2 is deformed from the round cross-sectional shape into a rectangular by two smooth-cylindrical pairs of rollers 5, 6, which are arranged in pairs in one plane opposite one another.
  • the deformation can take place in one or more stages, with crack-sensitive grades preferably being used up to four deformation stages 7, 8, 9, 10.
  • the size of the deformation in the individual stages must be selected so that the internal deformation at the boundary is firm - liquid not above the yield strength of the material. Taking this into account, the size of the deformation can also be chosen to be the same in all stages.
  • the diameter of the round strand is reduced by 127 mm from 127 mm, so that in the deformation stage 10 there is a square billet with an edge length of 100 mm with the same circumference as the round strand, but with a reduced cross-sectional area compared to the round strand .
  • the reshaping is carried out in a region of the 2-phase area below the lowest point of the melt overheating, as a result of which a high structural proportion with a small grain size corresponds in the finished product a rolling structure is already achieved in the cast strand.
  • the deformation is therefore carried out within a section of the strand in which more than 20% of the strand cross section and up to 70% of the strand cross section are still liquid. Care must be taken to ensure that, in the case of steel qualities that are sensitive to cracking, the deformation caused by the reduction in cross-section is not superimposed on other deformations, for example by straightening steps in oval arch systems.
  • the straightening levels in the present case two, are designated 11 and 12 and are located within the strand area with a liquid component.
  • the deformation stages 7, 8, 9, 10 and the straightening stages 11, 12 are arranged such that one of the straightening stages lies between two successive deformation stages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Laminated Bodies (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Steel (AREA)
EP92250347A 1991-11-26 1992-11-25 Procédé pour la production des produits long d'acier Expired - Lifetime EP0545510B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4139242A DE4139242C3 (de) 1991-11-26 1991-11-26 Verfahren zur Erzeugung von Langprodukten aus Stahl
DE4139242 1991-11-26

Publications (2)

Publication Number Publication Date
EP0545510A1 true EP0545510A1 (fr) 1993-06-09
EP0545510B1 EP0545510B1 (fr) 1997-05-14

Family

ID=6445825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250347A Expired - Lifetime EP0545510B1 (fr) 1991-11-26 1992-11-25 Procédé pour la production des produits long d'acier

Country Status (12)

Country Link
US (1) US5832984A (fr)
EP (1) EP0545510B1 (fr)
JP (1) JP3281660B2 (fr)
KR (1) KR100295954B1 (fr)
CN (1) CN1036640C (fr)
AT (1) ATE152941T1 (fr)
BR (1) BR9204568A (fr)
CA (1) CA2083770C (fr)
DE (2) DE4139242C3 (fr)
ES (1) ES2101028T3 (fr)
MX (1) MX9206775A (fr)
RU (1) RU2104821C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655288A1 (fr) * 1993-11-25 1995-05-31 Katsuhiko Yamada Procédé de coulée continue et procédé de coulée continue/laminage d'acier
EP0746433A1 (fr) * 1993-06-18 1996-12-11 CF&I Steel, L.P. Rail de chemin de fer et son procede et systeme de laminage par un processus traditionnel ou continu de laminage
WO1997043065A1 (fr) * 1996-05-10 1997-11-20 Mannesmann Ag Installation de coulee continue pour billettes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19633620C2 (de) * 1996-05-10 2001-10-25 Sms Demag Ag Stranggießanlage für Knüppel
DE19639297C2 (de) 1996-09-25 2000-02-03 Schloemann Siemag Ag Verfahren und Vorrichtung für Hochgeschwindigkeits-Stranggießanlagen mit einer Strangdickenreduktion während der Erstarrung
DE19639299C2 (de) * 1996-09-25 2001-02-22 Sms Demag Ag Vorrichtung zur Herstellung eines Vielkant- oder Profil-Formats in einer Stranggießanlage
AT408323B (de) * 1999-12-01 2001-10-25 Voest Alpine Ind Anlagen Verfahren zum stahl-stranggiessen
EP2543454B1 (fr) * 2011-07-08 2019-09-04 Primetals Technologies Germany GmbH Procédé et appareil pour la fabrication de produits longs en acier par coulée continue
DE102011112559B4 (de) 2011-09-08 2014-05-08 Techmag Ag Anlage zur Herstellung stranggepreßter Bauteile und Halbzeuge aus Leichtmetall oder Leichtmetalllegierungen
BR112015030150B1 (pt) * 2013-06-20 2020-10-20 Nippon Steel Corporation método para lingotamento contínuo de uma placa
IT201800011025A1 (it) * 2018-12-12 2020-06-12 Danieli Off Mecc Metodo di realizzazione di un apparato di colata continua ed apparato di colata continua cosi’ ottenuto

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478809A (en) * 1964-07-03 1969-11-18 Bruno Tarmann Process of producing continuous castings of square or circular cross-section
DE1583620A1 (de) * 1967-12-15 1970-08-27 Demag Ag Verfahren und Vorrichtung zum Behandeln von Giessstraengen durch Walzen
WO1989012517A1 (fr) * 1988-06-16 1989-12-28 Davy (Distington) Limited Fabrication de mince plaque de metal
EP0391824A1 (fr) * 1989-04-06 1990-10-10 Techmetal Promotion Procédé et installation de coulée de produits métalliques minces à réduction d'épaisseur sous la lingotière

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087154A (en) * 1964-07-27 1967-10-11 British Iron Steel Research Improvements in and relating to the production of metal strip
DE1483602A1 (de) * 1965-03-17 1970-01-08 Mannesmann Ag Transportwalzen fuer Stranggiessanlagen
US3393727A (en) * 1965-10-22 1968-07-23 Koppers Co Inc Continuous casting machine having billet shape maintaining rollers
DE1508837C3 (de) * 1966-10-20 1975-10-02 Demag Ag, 4100 Duisburg Vorrichtung zum Pressen des Strangmaterials beim Bogenstranggleßen
AT298712B (de) * 1970-01-09 1972-05-25 Voest Ag Stranggießanlage zum kontinuierlichen Gießen von schmelzflüssigen Metallen
JPS5137031A (ja) * 1974-09-18 1976-03-29 Mitsubishi Heavy Ind Ltd Renzokuchuzoatsuenhoho
US4683938A (en) * 1978-07-28 1987-08-04 Kennecott Corporation Method and apparatus for the continuous production of strip using oscillating mold assembly
US4815520A (en) * 1980-10-27 1989-03-28 Wuetig Fred H Method and apparatus for continuously casting metal
DE3606507A1 (de) * 1986-02-28 1987-09-10 Mannesmann Ag Verfahren zum erzeugen von walzvormaterial durch stranggiessen fuer langprodukte aus metall, insbesondere aus stahl
JPH0818116B2 (ja) * 1987-03-02 1996-02-28 大同特殊鋼株式会社 連続鋳造鋳片の製造方法
JPH01162551A (ja) * 1987-12-21 1989-06-27 Kawasaki Steel Corp 丸形ビレットの連続鋳造方法
JPH03198964A (ja) * 1989-12-26 1991-08-30 Daido Steel Co Ltd 連続鋳造のストランド圧下方法および装置
CA2117083A1 (fr) * 1991-09-12 1993-03-18 Giovanni Gosio Procede et dispositif pour l'obtention de lingots et de blooms de grande qualite par coulee continue

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478809A (en) * 1964-07-03 1969-11-18 Bruno Tarmann Process of producing continuous castings of square or circular cross-section
DE1583620A1 (de) * 1967-12-15 1970-08-27 Demag Ag Verfahren und Vorrichtung zum Behandeln von Giessstraengen durch Walzen
WO1989012517A1 (fr) * 1988-06-16 1989-12-28 Davy (Distington) Limited Fabrication de mince plaque de metal
EP0391824A1 (fr) * 1989-04-06 1990-10-10 Techmetal Promotion Procédé et installation de coulée de produits métalliques minces à réduction d'épaisseur sous la lingotière

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 437 (M-765)(3284) 17. November 1988 & JP-A-63 171 255 ( SUMITOMO METAL IND LTD ) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0746433A1 (fr) * 1993-06-18 1996-12-11 CF&I Steel, L.P. Rail de chemin de fer et son procede et systeme de laminage par un processus traditionnel ou continu de laminage
EP0746433A4 (fr) * 1993-06-18 1998-02-04 Cf & I Steel Lp Rail de chemin de fer et son procede et systeme de laminage par un processus traditionnel ou continu de laminage
EP0655288A1 (fr) * 1993-11-25 1995-05-31 Katsuhiko Yamada Procédé de coulée continue et procédé de coulée continue/laminage d'acier
WO1997043065A1 (fr) * 1996-05-10 1997-11-20 Mannesmann Ag Installation de coulee continue pour billettes

Also Published As

Publication number Publication date
CN1036640C (zh) 1997-12-10
ES2101028T3 (es) 1997-07-01
DE4139242C2 (fr) 1993-09-02
BR9204568A (pt) 1993-06-01
CA2083770C (fr) 2002-07-16
US5832984A (en) 1998-11-10
JP3281660B2 (ja) 2002-05-13
DE59208491D1 (de) 1997-06-19
KR930009673A (ko) 1993-06-21
MX9206775A (es) 1993-05-01
CN1073899A (zh) 1993-07-07
KR100295954B1 (ko) 2001-10-24
RU2104821C1 (ru) 1998-02-20
JPH05237616A (ja) 1993-09-17
ATE152941T1 (de) 1997-05-15
DE4139242A1 (de) 1993-06-03
CA2083770A1 (fr) 1993-05-27
DE4139242C3 (de) 1999-08-19
EP0545510B1 (fr) 1997-05-14

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