초록 ▼

The invention concerns the centering, the guiding and the correction of shape of liquid streams of different metals. A series of various and different electrical conductors A, B, C, D, even in number, are disposed along generatrices of a prism whose axis X coincides with the axis to be imposed on st

The invention concerns the centering, the guiding and the correction of shape of liquid streams of different metals. A series of various and different electrical conductors A, B, C, D, even in number, are disposed along generatrices of a prism whose axis X coincides with the axis to be imposed on stream V. High frequency alternating currents opposite in direction are passed along two successive conductors. Application to different types of casting in particular.

대표청구항 ▼

A device for centering, guiding and/or imparting a circular section to an unconfined liquid metal stream by subjecting said stream to at least one high frequency multipolar rotating field for creating induced current only in the skin of said stream, the geometry of this field within said stream bein

A device for centering, guiding and/or imparting a circular section to an unconfined liquid metal stream by subjecting said stream to at least one high frequency multipolar rotating field for creating induced current only in the skin of said stream, the geometry of this field within said stream being such that its amplitude increases greatly from a line or zone toward said skin where it is minimal, so that the longitudinal axis of said stream aligns itself along with said line or zone controlling said stream without using physical walls comprising; a series of at least four electrical field generating means even in number, disposed generally equally along generatrices of a prism or cylinder whose axis, rectilinear or curvilinear, coincides with the longitudinal axis to be imposed on said liquid metal stream, and means for passing, at least during certain periods of time, high frequency alternating currents opposite in direction along two successive field generating means, following the periphery of said prism or cylinder.