EP 1815925 A1 20070808 - Method and apparatus for the continuous casting of double-T-bleam blanks
Title (en)
Method and apparatus for the continuous casting of double-T-bleam blanks
Title (de)
Verfahren und Vorrichtung zum Stranggiessen Doppel-T-Vorprofilen
Title (fr)
Procédé et dispositif pour la coulée continue des blooms profilés à double T
Publication
Application
Priority
EP 05028469 A 20051224
Abstract (en)
The continuous casting of preliminary double-T steel sections, comprises introducing liquid steel substantially vertically into an open-ended die (1) and supplying partially hardened preliminary section to a strand guide with secondary cooling equipments. The cross section of the cavity of the open-ended die is made up of two flange parts (2,3) and a web part (4) and applied on a liquid strand in the preliminary section over magnet poles of magnetic fields. A 3-phase alternating current is supplied to agitating coils (19) of an agitator over a pole wiring. The continuous casting of preliminary double-T steel sections, comprises introducing liquid steel substantially vertically into an open-ended die (1) and supplying partially hardened preliminary section to a strand guide with secondary cooling equipments. The cross section of the cavity of the open-ended die is made up of two flange parts (2,3) and a web part (4) and applied on a liquid strand in the preliminary section over magnet poles of magnetic fields. A 3-phase alternating current is supplied to agitating coils (19) of an agitator over a pole wiring in dependence of a thickness of the web part, a steel quality and a symmetrical or asymmetrical steel supply with one or two sprue (passage) in such a manner that electromagnetic travelling waves are applied in the liquid strand of the preliminary section with horizontal direction components. The travelling waves are generated in the flange parts with direction components rotating in same- or opposite direction and/or in the web part with linear direction components and/or in the area of the open-ended die and/or in different and adjustable heights in the preliminary section and/or in transition area or area of the web part with direction components rotating in same- or opposite direction. The liquid steel is supplied on the sprue intended symmetrically or asymmetrically in the web part and the distribution of the liquid steel is supported over the cross section of the cavity depending upon casting parameters and/or product parameters by the rotary and/or linear travelling waves. An independent claim is included for a device for continuous casting of preliminary double-T steel sections.
Abstract (de)
Bei einem Verfahren zum Stranggiessen von Stahl-Vorprofilen, insbesondere Doppel-T-Vorprofilen, wird der flüssige Stahl im Wesentlichen vertikal in eine Durchlaufkokille (1) eingeführt. Der Formhohlraumquerschnitt dieser Durchlaufkokille (1) ist aus zwei Flanschteilen (2, 3) und einem Stegteil (4) zusammengesetzt. Der flüssige Kern des Vorprofilstranges wird unter Einsatz von elektromagnetisch induzierten Kräften im Bereich der Flanschteile (2, 3) und/oder des Stegteiles (4) in Rührbewegungen quer zur Stranggiessrichtung versetzt. Durch die Rührbewegungen wird der flüssige Stahl im Sumpf des Vorprofilstranges zwischen den Flanschteilen (2, 3) und dem Stegteil (4) ausgetauscht. Damit können die Strömungs- und Temperaturverhältnisse im Flüssigstahlsumpf innerhalb der Vorprofil-Strangschale gezielt aktiv beeinflusst werden und hierbei eine Stabilisierung des Giessspiegelbereiches, günstige und zudem steuerbare Strömungsverhältnisse herbeigeführt werden.
IPC 8 full level
B22D 11/04 (2006.01); B22D 11/115 (2006.01); B22D 11/12 (2006.01)
CPC (source: EP KR US)
B22D 11/04 (2013.01 - KR); B22D 11/0406 (2013.01 - EP US); B22D 11/115 (2013.01 - EP KR US); B22D 11/12 (2013.01 - KR); B22D 11/122 (2013.01 - EP US)
Citation (applicant)
EP 1419021 B1 20050629 - PROFILARBED SA [LU]
Citation (search report)
- [DA] EP 1419021 A1 20040519 - PROFILARBED SA [LU]
- [Y] US 4867786 A 19890919 - SAEKI MITSURU [JP], et al
- [XY] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31)
- [Y] PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)
- [Y] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
WO 2007073863 A1 20070705; AR 056855 A1 20071024; AT E517706 T1 20110815; BR PI0620623 A2 20111116; CA 2633026 A1 20070705; CA 2633026 C 20140311; CN 101346200 A 20090114; CN 101346200 B 20110907; EP 1815925 A1 20070808; EP 1815925 B1 20110727; ES 2371168 T3 20111228; JP 2009521330 A 20090604; JP 5308826 B2 20131009; KR 101332209 B1 20131125; KR 20080081158 A 20080908; MY 163903 A 20171115; RU 2008130521 A 20100127; RU 2419509 C2 20110527; TW 200810859 A 20080301; TW I406720 B 20130901; UA 91104 C2 20100625; US 2008251231 A1 20081016; US 8109320 B2 20120207; ZA 200803923 B 20090325
DOCDB simple family (application)
EP 2006011972 W 20061213; AR P060105742 A 20061221; AT 05028469 T 20051224; BR PI0620623 A 20061213; CA 2633026 A 20061213; CN 200680048980 A 20061213; EP 05028469 A 20051224; ES 05028469 T 20051224; JP 2008546200 A 20061213; KR 20087015544 A 20061213; MY PI20081908 A 20061213; RU 2008130521 A 20061213; TW 95147520 A 20061218; UA A200809668 A 20061213; US 14013508 A 20080616; ZA 200803923 A 20080508