EP 2249983 B1 20160629 - METHOD AND ASSOCIATED ELECTROMAGNETIC APPARATUS FOR ROTATING MOLTEN METAL IN A SLAB CONTINUOUS-CASTING INGOT MOULD
Title (en)
METHOD AND ASSOCIATED ELECTROMAGNETIC APPARATUS FOR ROTATING MOLTEN METAL IN A SLAB CONTINUOUS-CASTING INGOT MOULD
Title (de)
VERFAHREN UND ZUGEHÖRIGE ELEKTROMAGNETISCHE VORRICHTUNG ZUM DREHEN VON METALLSCHMELZE IN EINER KOKILLE ZUM STRANGGIESSEN VON BRAMMEN
Title (fr)
PROCÉDÉ ET ÉQUIPEMENT ÉLECTROMAGNÉTIQUE ASSOCIÉ POUR LA MISE EN ROTATION D'UN MÉTAL EN FUSION AU SEIN D'UNE LINGOTIÈRE DE COULÉE CONTINUE DE BRAMES.
Publication
Application
Priority
FR 2007002104 W 20071217
Abstract (en)
[origin: WO2009077661A1] According to the invention, four separate multiple-phase inductors (10a, 10b, 10c, 10d) with sliding magnetic fields are mounted on the large surfaces (12, 12') of the ingot mould with two inductors per large surface, wherein the inductors (10a, 10b) arranged side by side on a same large surface of the ingot mould generate driving forces that urge the molten metal along the width of the ingot mould together in a same direction, and in a direction opposite to that of the driving forces generated by the two opposite inductors on the other large surface (12'). The intensity of the driving forces are adjusted in a differentiated manner so that, in the vicinity of a large surface, if the metal flow there is stronger towards the inside than towards the outside, higher intensities are applied to the two forces driving the metal towards the outside and, conversely, if the metal flow is weaker towards the inside than towards the outside, higher intensities are applied to the two forces driving the metal towards the inside. The invention thus implemented generates an axial rotation movement of the metal at the meniscus that is well developed and homogeneous during the entire length of the casting, regardless of the natural flow mode of the metal smelt in the ingot mould.
IPC 8 full level
B22D 11/115 (2006.01)
CPC (source: EP US)
B22D 11/115 (2013.01 - EP US)
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 MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009077661 A1 20090625; BR PI0722296 A2 20140422; BR PI0722296 B1 20161004; CA 2702639 A1 20090625; CN 101827670 A 20100908; CN 101827670 B 20120801; EP 2249983 A1 20101117; EP 2249983 B1 20160629; JP 2011506103 A 20110303; JP 5181032 B2 20130410; KR 101520883 B1 20150515; KR 20100093524 A 20100825; RU 2010129926 A 20120127; RU 2448802 C2 20120427; TW 200936274 A 20090901; TW I402115 B 20130721; US 2010263822 A1 20101021; US 8167024 B2 20120501
DOCDB simple family (application)
FR 2007002104 W 20071217; BR PI0722296 A 20071217; CA 2702639 A 20071217; CN 200780101117 A 20071217; EP 07872391 A 20071217; JP 2010538822 A 20071217; KR 20107010408 A 20071217; RU 2010129926 A 20071217; TW 97138525 A 20081007; US 80831310 A 20100615