Patent ID: 6382303
Filing Date: 2002-05-07
Classification: B22D

Abstract:
A continuous casting method with rollers for plane product by means of a device comprising counter-rotating rollers (11) partly immersed in a receptacle (14) containing molten metal (15), said receptacle (14) including a bottom (114) and sidewalls (214), said rollers (11) being arranged parallel and adjacent to define a transit gap (12) through which the plane product to be produced is extracted, comprising the steps of:positioning electromagnetic holding and lateral containment means (19) in cooperation with each of the ends of said two rollers (11), said electromagnetic holding and lateral containment means (19) being arranged in such a manner as to surround, without contact, at least partly the surface of said rollers (11) immersed in said molten metal (15), said electromagnetic holding and lateral containment means (19) being arranged in an intermediate position between said surface of the rollers (11) and said side wall (214) of receptacle (14), wherein said electromagnetic holding and lateral containment means are movable parallel to the axis of said casting rollers, feeding an alternating current to at least a coil (29) made of conductor material arranged inside said electromagnetic holding and lateral containment means (19), said coil (29) including at least a surface (29a) facing towards said surface of said rollers (11) and a surface (29b) facing towards said molten metal (15), said alternating current causing the formation of electromagnetic forces (39) directed from said coil (29) to said molten metal (15) and suitable to laterally confine said molten metal (15) in the space between the inner edges of said holding means (19).