F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
307/13
F27B 9/16 (2006.01) B22D 11/12 (2006.01)
Patent
CA 1105535
A B S T R A C T Disclosed is a device for electro-magnetic agitation of the core of a continuous metal casting as it cools, by means of an inductor adapted to be connected to an alternating-current mains, for the purpose of producing a travelling electro-magnetic field in the continuous-casting. The inductor has field-producing windings fitted to self-supporting teeth pointing towards the continuous-casting. A stack of inductor sheets are mounted in a continuous- casting guide-roll frame near the metal being cast, two adjacent teeth of the stack of sheets enclosing one guide-roll for the casting, and each comprising a longitudinal extension running in the direction of the axis of rotation of the guide-rolls. The guide-rolls adjacent the teeth are made of a non-magnetic, electrically-conducting material. Known devices of this kind fail to produce all of the results expected from them. In spite of relatively small leakage fields, the efficiency is below the limit of expectation. In order to improve the efficiency of the known arrangements, it is proposed, according to the present invention, to design the device in such a manner that the guide-rolls for the casting, located adjacent the teeth of the stack of inductor sheets, are arranged, with the inclusion of an electrically-insulated section, in such a manner that electric-current flow-paths, connected through the rolls and including at least one tooth, are electrically interrupted.
326433
Gerbig Hans-Erwin
Sardemann Jurgen
Schrewe Hans
von Starck Axel
Fetherstonhaugh & Co.
Mannesmann Aktiengesellschaft
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