EP 2178661 A1 20100428 - METHOD AND DEVICE FOR THE ELECTROMAGNETIC STIRRING OF ELECTRICALLY CONDUCTIVE FLUIDS
Title (en)
METHOD AND DEVICE FOR THE ELECTROMAGNETIC STIRRING OF ELECTRICALLY CONDUCTIVE FLUIDS
Title (de)
VERFAHREN UND EINTRICHTUNG ZUM ELEKTROMAGNETISCHEN RÜHREN VON ELEKTRISCH LEITENDEN FLÜSSIGKEITEN
Title (fr)
PROCÉDÉ ET MODULE D'AGITATION ÉLECTROMAGNÉTIQUE DE LIQUIDES ÉLECTRIQUEMENT CONDUCTEURS
Publication
Application
Priority
- DE 2008001261 W 20080801
- DE 102007038281 A 20070803
Abstract (en)
[origin: WO2009018810A1] The invention relates to a method and to a device for the electromagnetic stirring of electrically conductive fluids (2), using a magnetic field RMF (34) rotating in the horizontal plane and a magnetic field WMF (47) migrating in the vertical direction relative thereto. The aim is to avoid non-symmetrical flow structures in receptacles filled with melts, particularly at the onset and during the course of solidification. In addition, effective mixing of the fluid and/or controlled solidification of metal alloys are to be achieved, while avoiding the formation of segregation zones in the solidifying structure. The solution is that both the rotating magnetic field RMF (34) and the migrating magnetic field WMF (47) are discontinuously connected in the form of temporally limited and adjustable period durations (TP,RMF,TP,WMF) and alternately, consecutively in time, via associated induction coils (31, 32, 33; 41, 42, 43, 44, 45, 46).
IPC 8 full level
B01F 13/08 (2006.01); B22D 11/115 (2006.01); B22D 27/02 (2006.01)
CPC (source: EP US)
B01F 33/451 (2022.01 - EP US); B22D 11/115 (2013.01 - EP US); B22D 27/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2009018810A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009018810 A1 20090212; DE 102007038281 A1 20090219; DE 102007038281 B4 20090618; EP 2178661 A1 20100428; JP 2010535106 A 20101118; US 2010163207 A1 20100701
DOCDB simple family (application)
DE 2008001261 W 20080801; DE 102007038281 A 20070803; EP 08801099 A 20080801; JP 2010518495 A 20080801; US 67204608 A 20080801