EP2849903A1 - Procédé et guidage de barre pour influencer la solidification du c ur encore partiellement liquide pendant une coulée continue - Google Patents

Procédé et guidage de barre pour influencer la solidification du c ur encore partiellement liquide pendant une coulée continue

Info

Publication number
EP2849903A1
EP2849903A1 EP13720764.3A EP13720764A EP2849903A1 EP 2849903 A1 EP2849903 A1 EP 2849903A1 EP 13720764 A EP13720764 A EP 13720764A EP 2849903 A1 EP2849903 A1 EP 2849903A1
Authority
EP
European Patent Office
Prior art keywords
strand
continuous casting
liquid core
force
solidification
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
EP13720764.3A
Other languages
German (de)
English (en)
Other versions
EP2849903B1 (fr
Inventor
Horst Von Wyl
Holger Beyer-Steinhauer
Esra Erdem HORNAUER
Peter Müller
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.)
SMS Group GmbH
Original Assignee
SMS Siemag 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 SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2849903A1 publication Critical patent/EP2849903A1/fr
Application granted granted Critical
Publication of EP2849903B1 publication Critical patent/EP2849903B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B22D11/16—Controlling or regulating processes or operations

Definitions

  • the invention relates to a method for influencing the solidification of the still partially liquid core of slabs and billets of steel during the continuous casting, and a strand guide for carrying out the method.
  • segments are known whose upper frame during casting in
  • a disadvantage of the first-mentioned devices or methods is the considerable additional expenditure on equipment and the considerable metallurgical effect.
  • the second-mentioned devices or methods only applications are known that have a static effect on the cast strand or whose dynamic effect on the cast strand serves metrological tasks and is designed only for such.
  • the object of the invention is the structure during the continuous casting
  • This object is achieved according to the invention with a method for influencing the solidification of the partially still liquid core of slabs and billets of steel during the continuous casting, which is characterized
  • Embodiments result from the dependent claims 2-7, as well as on the
  • V gain factor ratio of the effective areas or lengths
  • bfi cross-sectional width of the liquid strand content can be given a oscillation frequency of e.g. 2 Hz, the required oscillation amplitude can be determined to be at least 0.24 mm.
  • the ratio of the effective surfaces is less favorable, because a generally shorter segment length faces a significantly greater height of the flow cross section. It follows in this area that in order to achieve the same effect stroke amplitude, frequency or their product must be about 10 times larger than in the area of the sump tip.
  • volume change described results in a corresponding periodic change of the casting level.
  • Their negative effects can be compensated for by always oscillating two (or more) segments in push-pull mode and thus restricting the flow to (one) region (e) within the strand guide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un procédé destiné à influencer la solidification du cœur encore partiellement liquide de brames et blooms en acier pendant la coulée continue. Selon l'invention, une force ou un mouvement est appliqué(e) de façon périodique sur les côtés larges de la barre.
EP13720764.3A 2012-05-15 2013-04-10 Procédé et guidage de barre pour influencer la solidification du coeur encore partiellement liquide pendant une coulée continue Active EP2849903B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012009870A DE102012009870A1 (de) 2012-05-15 2012-05-15 Verfahren und Strangführung zur Beeinflussung der Erstarrung des teilweise noch flüssigen Kernes während des Stranggießens
PCT/DE2013/000208 WO2013170844A1 (fr) 2012-05-15 2013-04-10 Procédé et guidage de barre pour influencer la solidification du cœur encore partiellement liquide pendant une coulée continue

Publications (2)

Publication Number Publication Date
EP2849903A1 true EP2849903A1 (fr) 2015-03-25
EP2849903B1 EP2849903B1 (fr) 2019-03-20

Family

ID=48325335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13720764.3A Active EP2849903B1 (fr) 2012-05-15 2013-04-10 Procédé et guidage de barre pour influencer la solidification du coeur encore partiellement liquide pendant une coulée continue

Country Status (3)

Country Link
EP (1) EP2849903B1 (fr)
DE (1) DE102012009870A1 (fr)
WO (1) WO2013170844A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019206199A1 (de) 2019-04-30 2020-11-05 Thyssenkrupp Steel Europe Ag Stranggießeinrichtung zur Beeinflussung eines erstarrenden Strangs, insbesondere einer erstarrenden Bramme, und Verfahren zur Beeinflussung eines erstarrenden Strangs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720768C1 (de) * 1997-05-07 1999-01-14 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl
US6523601B1 (en) * 2001-08-31 2003-02-25 Shlomo Hury Method and apparatus for improving internal quality of continuously cast steel sections
DE102006016375B4 (de) * 2006-04-05 2023-02-16 Sms Group Gmbh Verfahren und Einrichtung zum Bestimmen der Kernerstarrung und/oder der Sumpfspitze beim Stranggießen von Metallen, insbesondere von Stahlwerkstoffen
ES2688943T3 (es) 2007-08-08 2018-11-07 Nippon Steel & Sumitomo Metal Corporation Vibrador de martilleo en colada continua
JP5188862B2 (ja) 2008-04-04 2013-04-24 株式会社Ｉｈｉ 鋳片連続鋳造用の連続打撃装置

Also Published As

Publication number Publication date
DE102012009870A8 (de) 2014-01-30
WO2013170844A1 (fr) 2013-11-21
EP2849903B1 (fr) 2019-03-20
DE102012009870A1 (de) 2013-11-21

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