Abstract: A heating device and/or method to heat a slab, and in particular its edges, by electromagnetic induction, including an electric coil and a magnetic concentrator associated with the electric coil.

Abstract: Apparatus for heating metal products, able to heat by electromagnetic induction at least one metal product positioned in a heating chamber and mobile in a direction of feed, in which said heating apparatus comprises one or more heating coils positioned in a ring around said heating chamber and said metal product to be heated; said one or more heating coils are positioned substantially transversely to the direction of feed of the metal product and are able to generate a magnetic field having a direction substantially parallel or coincident to the direction of feed of the product to be heated and directed in the same direction as said direction of feed of the product to be heated; said heating apparatus also comprises at least one heat shield positioned between said one or more heating coils and the metal product to be heated; said heat shield comprises walls provided with blocks of thermal and electric insulating material and positioned around the metal product to be heated and also comprises cooling pipes pos

Abstract: A method for containing a slab during continuous casting, including casting a slab along a casting axis, said slab having a predefined width, wherein the method provides a containment of the slab with a plurality of rolls, said rolls being disposed in pairs facing to each other, and defining a passage along the casting axis for the cast slab, wherein the plurality of rolls includes electromagnetic rolls provided with an electromagnetic stirrer which stirs the liquid contained in the slab.

Abstract: A transverse flux induction heating apparatus (1, 100), defining a first longitudinal axis (X, R), for heating a metallic strip (11), the apparatus comprises at least two induction coils (2, 4; 102, 104) 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 (20, 22, 24, 26; 120, 124), each compensation pole being constrained to a respective induction coil; wherein each compensation pole comprises a winding (28, 128), having at least one turn (29, 129), and a first auxiliary magnetic flux concentrator (30, 130) 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.

Abstract: Apparatus to heat and transfer mainly metal materials to a melting furnace (12), the apparatus comprising a transporter device (13) configured to move the materials continuously to the melting furnace (12), and at least an induction heating unit (28) associated with the transporter device (13) and configured to heat by electromagnetic induction the materials moved in the transporter device (13), keeping them in a solid state.

Abstract: Plant for melting metal materials comprising at least a heating unit (11) provided with a container (13) to contain the mainly metal materials and with at least an induction heating device (22) configured to heat the mainly metal materials contained in the container (13). The plant also comprises a transfer unit (25) disposed downstream of the heating unit (11) and configured to move, substantially continuously, the mainly metal solid materials exiting from the heating unit (11) to a melting furnace (12). The container (13) is provided with an aperture (16) through which the mainly metal material, heated and in a solid state, is discharged onto the transfer unit (25), and opening/closing members (17) are associated with the aperture (16), commanded by an actuator (19) and configured to open, close and choke the aperture (16) in order to regulate the delivery of the metal materials that is discharged onto the transfer unit (25).

Abstract: A transverse flux induction heating apparatus (1, 100), defining a first longitudinal axis (X, R), for heating a metallic strip (11), the apparatus comprises at least two induction coils (2, 4; 102, 104) 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 (20, 22, 24, 26; 120, 124), each compensation pole being constrained to a respective induction coil; wherein each compensation pole comprises a winding (28, 128), having at least one turn (29, 129), and a first auxiliary magnetic flux concentrator (30, 130) 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.

Abstract: An electromagnetic device (1) for stabilizing and minimizing the deformation of a strip (4) 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 (50) of said strip (4). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element (26) made of ferromagnetic material which connects the cores of the first electromagnets (15, 15?, 15?, 15??) and a connection element (26?) made of ferromagnetic material which connects the cores of the second electromagnets (16, 16?, 16?, 16??). The connection elements (26, 26?) mirror the theoretical pass-line (50) of the strip (4).

Abstract: An electromagnetic device (1) for stabilizing and minimizing the deformation of a strip (4) 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 (50) of said strip (4). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element (26) made of ferromagnetic material which connects the cores of the first electromagnets (15, 15?, 15?, 15??) and a connection element (26?) made of ferromagnetic material which connects the cores of the second electromagnets (16, 16?, 16?, 16??). The connection elements (26, 26?) mirror the theoretical pass-line (50) of the strip (4).

Abstract: Plant for melting metal materials comprising at least a heating unit (11) provided with a container (13) to contain the mainly metal materials and with at least an induction heating device (22) configured to heat the mainly metal materials contained in the container (13). The plant also comprises a transfer unit (25) disposed downstream of the heating unit (11) and configured to move, substantially continuously, the mainly metal solid materials exiting from the heating unit (11) to a melting furnace (12). The container (13) is provided with an aperture (16) through which the mainly metal material, heated and in a solid state, is discharged onto the transfer unit (25), and opening/closing members (17) are associated with the aperture (16), commanded by an actuator (19) and configured to open, close and choke the aperture (16) in order to regulate the delivery of the metal materials that is discharged onto the transfer unit (25).

Abstract: Apparatus to heat and transfer mainly metal materials to a melting furnace (12), the apparatus comprising a transporter device (13) configured to move the materials continuously to the melting furnace (12), and at least an induction heating unit (28) associated with the transporter device (13) and configured to heat by electromagnetic induction the materials moved in the transporter device (13), keeping them in a solid state.

Abstract: An electromagnetic device (1) for stabilizing and minimizing the deformation of a strip (4) 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 (50) of said strip (4). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element (26) made of ferromagnetic material which connects the cores of the first electromagnets (15, 15?, 15?, 15??) and a connection element (26?) made of ferromagnetic material which connects the cores of the second electromagnets (16, 16?, 16?, 16??). The connection elements (26, 26?) mirror the theoretical pass-line (50) of the strip (4).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An electromagnetic stabilizer comprises:—a first and a second plurality of electromagnets (15, 16) aligned along a transversal direction (100?) orthogonal to a feeding direction (100) of the strip (M), the first and second plurality of electromagnets (15, 16) being mutually arranged in a position mirroring the theoretical feeding plane (50); each of said electromagnets (15, 16) comprises:—a core (17) provided with at least a first and a second pole (18?, 18?);—a first and a second coil (3?, 3?) wound about the first and second poles (18?, 18?), respectively;—two power sources (4? 4?) to supply the coils (3?, 3?), respectively, so as to generate a first and a second magnetic field (T, 7?), respectively,—at least one concentrator made of ferromagnetic material connected to the core and arranged so as to make the first and the second coil (3?, 3?) magnetically independent of each other.

Abstract: An electromagnetic device (1) for stabilizing and minimizing the deformation of a strip (4) 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 (50) of said strip (4). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element (26) made of ferromagnetic material which connects the cores of the first electromagnets (15, 15?, 15?, 15??) and a connection element (26?) made of ferromagnetic material which connects the cores of the second electromagnets (16, 16?, 16?, 16?). The connection elements (26, 26?) mirror the theoretical pass-line (50) of the strip (4).

Abstract: 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 electro-magnetic brakes either independently or in groups according to characteristic parameters of the fluid-dynamic conditions of the liquid metal within the bath.

Abstract: An apparatus and process for the dry removal of the scale from the surface of a metal product comprising at least one heating area that does not reduce the specific surface of the material to be treated and does not cause oxidation, at least one reducing area for performing the reaction between a specific reducing gas (normally hydrogen) and at least the scale, at least one cooling area for cooling the metal product, means for heating the metal product, means for heating the reducing gas, means for controlling the fluid dynamics of the boundary layer produced by the flow of said reducing gas over the surface of the metal product, means for removing the reaction products front the reducing gas after the reaction, means for cooling the metal product, and means for removing the reaction products from the treated surface of the metal product.