Danieli & C. Officine Meccaniche S.p.a.

Michele Minen

Fabio Guastini

Fabio Vecchiet

Andrea Codutti

A transverse flux induction heating apparatus (), defining a first longitudinal axis (X, R), for heating a metallic strip (), the apparatus comprises at least two induction coils () arranged on respective planes parallel to each other and parallel to said first longitudinal axis, and mutually arranged at a distance such to allow the passage of the strip between said at least two induction coils along a second longitudinal axis (Y, S) perpendicular to said first longitudinal axis; at least two compensation poles (), each compensation pole being constrained to a respective induction coil; wherein each compensation pole comprises a winding (), having at least one turn (), and a first auxiliary magnetic flux concentrator () surrounded by the at least one turn; wherein at least one of said at least two compensator poles is adapted to move along the first longitudinal axis.

Transverse flux induction heating apparatus

An electromagnetic device () for stabilizing and minimizing the deformation of a strip () made of ferromagnetic material during its feeding in a system for coating the same strip with molten metal, by applying a distribution of force which is continuous in the direction transversal to the strip regardless of the width thereof. The device comprises first electromagnets and second electromagnets mirroring the tirst electromagnets with respect to said theoretical pass-line () of said strip (). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element () made of ferromagnetic material which connects the cores of the first electromagnets ('&#x2033;) and a connection element (&#x2032;) made of ferromagnetic material which connects the cores of the second electromagnets (&#x2032;&#x2033;). The connection elements (&#x2032;) mirror the theoretical pass-line () of the strip ().

Electromagnetic device for stabilizing and reducing the deformation of a strip made of ferromagnetic material, and related process

An electromagnetic device () for stabilizing and minimizing the deformation of a strip () made of ferromagnetic material during its feeding in a system for coating the same strip with molten metal, by applying a distribution of force which is continuous in the direction transversal to the strip regardless of the width thereof. The device comprises first electromagnets and second electromagnets mirroring the first electromagnets with respect to said theoretical pass-line () of said strip (). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element () made of ferromagnetic material which connects the cores of the first electromagnets () and a connection element (') made of ferromagnetic material which connects the cores of the second electromagnets (). The connection elements (&#x2032;) mirror the theoretical pass-line () of the strip ().

An electromagnetic stabilizer includes a first and a second plurality of electromagnets aligned along a transversal direction orthogonal to a feeding direction of the strip. The first and second plurality of electromagnets are mutually arranged in a position mirroring the theoretical feeding plane. Each of the electromagnets includes: a core provided with at least a first and a second pole; a first and a second coil wound about the first and second poles, respectively; two power sources to supply the coils, respectively, so as to generate a first and a second magnetic field, respectively; and at least one concentrator made of ferromagnetic material connected to the core and arranged so as to make the first and the second coil magnetically independent of each other.

Electromagnetic stabilizer

The present invention relates to a process for controlling the distribution of liquid metal flows of in a crystallizer for the continuous casting of thin slabs. In particular, the process applies to a crystallizer comprising perimetral walls which define a containment volume for a liquid metal bath insertable through a discharger placed in the middle of the bath. The process includes arranging a plurality of electromagnetic brakes, each for generating a braking zone within said bath, and activating these electromagnetic brakes either independently or in groups according to characteristic parameters of the fluid-dynamic conditions of the liquid metal within the bath.

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Udine, Italy

Michele Minen