EP0545510B1 - Verfahren zur Erzeugung von Langprodukten aus Stahl - Google Patents

Verfahren zur Erzeugung von Langprodukten aus Stahl Download PDF

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Publication number
EP0545510B1
EP0545510B1 EP92250347A EP92250347A EP0545510B1 EP 0545510 B1 EP0545510 B1 EP 0545510B1 EP 92250347 A EP92250347 A EP 92250347A EP 92250347 A EP92250347 A EP 92250347A EP 0545510 B1 EP0545510 B1 EP 0545510B1
Authority
EP
European Patent Office
Prior art keywords
cross
billet
strand
shaping
mould
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
EP92250347A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0545510A1 (de
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/de
Application granted granted Critical
Publication of EP0545510B1 publication Critical patent/EP0545510B1/de
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 when continuously casting 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 mm 2 .
  • 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.
  • the metallurgical length is approximately 15000 mm.
  • the strand 2 is deformed from the round cross-sectional shape into a rectangular one by two smooth-cylindrical roller pairs 5, 6, which are arranged in pairs in one plane.
  • the deformation can take place in one or more stages, with up to four deformation stages 7, 8, 9, 10 preferably being used for crack-sensitive grades.
  • the size of the deformation in the individual stages should 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 be chosen to be the same in all stages.
  • the diameter of the round strand is reduced from 127.4 mm by 6.8 mm each, so that in the deformation stage 10 a square billet with an edge length of 100 mm with the same circumference as the round strand, but with a reduced diameter compared to the round strand Cross-sectional area exists.
  • the shaping is carried out in an area of the 2-phase area below the lowest point of the melt overheating, as a result of which a corresponding high content of microstructure with a small grain size 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 grades 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 stages in the present case two, are designated 11 and 12 and are located within the strand area with a liquid component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Laminated Bodies (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Metal Extraction Processes (AREA)
EP92250347A 1991-11-26 1992-11-25 Verfahren zur Erzeugung von Langprodukten aus Stahl Expired - Lifetime EP0545510B1 (de)

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 EP0545510A1 (de) 1993-06-09
EP0545510B1 true EP0545510B1 (de) 1997-05-14

Family

ID=6445825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250347A Expired - Lifetime EP0545510B1 (de) 1991-11-26 1992-11-25 Verfahren zur Erzeugung von Langprodukten aus Stahl

Country Status (12)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472041A (en) * 1989-12-01 1995-12-05 Cf&I Steel, L.P. Railroad rail and method and system of rolling the same by conventional or continuous rolling process
JP2989737B2 (ja) * 1993-11-25 1999-12-13 勝彦 山田 鋼材の連続鋳造法および連続鋳造・圧延法
DE19633620C2 (de) * 1996-05-10 2001-10-25 Sms Demag Ag Stranggießanlage für Knüppel
EP0906163B1 (de) * 1996-05-10 2001-12-12 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
PL2543454T3 (pl) * 2011-07-08 2020-02-28 Primetals Technologies Germany Gmbh Sposób i urządzenie do wytwarzania długich wyrobów stalowych w odlewaniu ciągłym
DE102011112559B4 (de) 2011-09-08 2014-05-08 Techmag Ag Anlage zur Herstellung stranggepreßter Bauteile und Halbzeuge aus Leichtmetall oder Leichtmetalllegierungen
ES2650847T3 (es) * 2013-06-20 2018-01-22 Nippon Steel & Sumitomo Metal Corporation Método para colar en continuo un desbaste plano
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004802A1 (en) * 1991-09-12 1993-03-18 Giovanni Arvedi A process and apparatus for the manufacture of billets and blooms from a continuously last steel showing high or excellent quality

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT251213B (de) * 1964-07-03 1966-12-27 Boehler & Co Ag Geb Verfahren zur Herstellung von Quadrat- oder Rundsträngen
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
DE1583620A1 (de) * 1967-12-15 1970-08-27 Demag Ag Verfahren und Vorrichtung zum Behandeln von Giessstraengen durch Walzen
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
AU3860689A (en) 1988-06-16 1990-01-12 Davy (Distington) Limited The manufacture of thin metal slab
FR2647377B1 (fr) * 1989-04-06 1993-04-30 Techmetal Promotion Procede et installation de coulee de produits metalliques minces a reduction d'epaisseur sous la lingotiere
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004802A1 (en) * 1991-09-12 1993-03-18 Giovanni Arvedi A process and apparatus for the manufacture of billets and blooms from a continuously last steel showing high or excellent quality

Also Published As

Publication number Publication date
DE4139242C2 (enrdf_load_stackoverflow) 1993-09-02
DE59208491D1 (de) 1997-06-19
EP0545510A1 (de) 1993-06-09
MX9206775A (es) 1993-05-01
DE4139242C3 (de) 1999-08-19
KR930009673A (ko) 1993-06-21
US5832984A (en) 1998-11-10
JP3281660B2 (ja) 2002-05-13
CN1036640C (zh) 1997-12-10
JPH05237616A (ja) 1993-09-17
CN1073899A (zh) 1993-07-07
RU2104821C1 (ru) 1998-02-20
CA2083770C (en) 2002-07-16
CA2083770A1 (en) 1993-05-27
KR100295954B1 (ko) 2001-10-24
ES2101028T3 (es) 1997-07-01
DE4139242A1 (de) 1993-06-03
ATE152941T1 (de) 1997-05-15
BR9204568A (pt) 1993-06-01

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