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

Danieli Automation S.p.a.

Rotelec Sa

Andrea Codutti

Fabio Guastini

Alfredo Poloni

Milorad Pavlicevic

Nuredin Kapaj

Angelico Della Negra

Fabio Vecchiet

Stefano Morsut

Michele Minen

Anatoly Kolesnichenko

Nicola Gagliardi

Antonello Mordeglia

Bernard Villemin

Romano Sellan

Paolo Burin

Damiano Patrizio

Marco Petronio

Maurizio Picciotto

Ferdinando Forno

Victoria Buryak

Anastasia Kolesnichenko

A method for electromagnetic stirring of liquid metal in a continuous charge electric arc furnace, in which there are positioned a first electromagnetic field along a first axis of electromagnetic stirring and a second electromagnetic field along a second axis of electromagnetic stirring.

Method of stirring liquid metal in an electric arc furnace

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.

Heating device and corresponding apparatus and method

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

Apparatus for heating and transferring metal materials for a melting plant, and method for melting metal materials

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

Plant and method for melting metal materials

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.

Process and apparatus for controlling the flows of liquid metal in a crystallizer for the continuous casting of thin flat slabs

Device and corresponding method for the continuous casting of molten materials, comprising a vertical duct having the shape of a funnel made of refractory material for receiving molten material, and a second duct where the molten material is cooled off, the two ducts being set one on top of the other and being axially aligned. The molten material is injected into the channel, around a stretch of which electromagnetic means are set for generating magnetic forces on the molten material, the said means consisting of a plurality of windings of electrically conductive material and of a ferromagnetic core and may be electrically supplied to produce a magnetic flux along the direction of the channel, thus producing a set of forces acting on the molten material which are directed orthogonally with respect to the direction of the said magnetic flux so as to maintain detachment of the outer surface of the molten material from the walls of the channel.

Method and device for continuous casting of molten materials

Continuous casting device and method with rollers for plane products such as strip ( ) or sheet, comprising counter-rotating rollers ( ) immersed in a receptacle ( ) containing molten metal ( ), said receptacle ( ) including a bottom ( ) and side walls ( ), said rollers ( ) being arranged parallel and adjacent to define a transit gap ( ) through which the strip ( ) to be produced is extracted, the device comprising holding elements ( ) of the electromagnetic type arranged in cooperation with each of the ends of said rollers ( ), said holding elements ( ) having an inner edge, an outer edge and a curved shape suitable to surround, without contact, at least partly the surface of said rollers ( ) immersed in said molten metal ( ), said holding elements ( ) comprising at least a coil ( ) suitable to be passed through by an alternating current to generate a magnetic field in said molten metal ( ) and generating currents induced therein in order to obtain the lateral confinement of said molten metal ( ) in the space (&ldquo;1&rdquo;) between the relative facing inner edges of said holding elements ( ).

Continuous casting method with rollers and relative device

Device for the continuous casting of billets, blooms, slabs and round bars, the device being associated with a crystalliser (10) containing the cast metal, the crystalliser (10) having sidewalls (11) which cooperate with cooling channels (16-24) defined by outer walls (15), the device comprising a plurality of devices located outside the sidewalls (11) of the crystalliser, the electromagnetic devices (18a, 18b, 18c) cooperating directly with the sidewalls (11) and being spaced apart longitudinally along the direction of sliding of the cast product, and fed in an independent, separate and differentiated manner from each other, the feeding being a function of the generation of a pulsating electromagnetic field in a direction substantially perpendicular to the axis of the crystalliser (10) and migrating substantially along the whole longitudinal extent of the crystalliser (10), the current pulses achieving a value of up to 100 kA. In the method, the solidified skin of the cast metal inside the crystalliser (10) undergoes the action of a pulsating magnetic field in a direction substantially perpendicular to the axis of the crystalliser (10) and migrating lengthwise substantially along the whole extent of the crystalliser (10), the magnetic field being generated by a plurality of electromagnetic devices (18a, 18b, 18c) spaced apart longitudinally along the extent of the crystalliser (10) and fed in an independent and differentiated manner from each other, with current pulses which achieve a value of up to 100 kA.

Continuous casting method and relative device

Method to obtain transverse vibrations of the walls (111) of the crystalliser (11) in an ingot mould (10), by a pulsation in the cooling liquid, the ingot mould (10) possibly having one or more peripheral areas (13a, 13b), disposed lengthwise, wherein the cooling liquid circulates around the sidewalls (111) of the crystalliser (11), the cooling circuit comprising a transit channel (16) directly in contact with one or more sidewalls (111) and at least a pump, a delivery pipe and a discharge pipe connected with a discharge side (21), the cooling fluid being made to circulate the pump around the sidewalls (111) of the crystalliser (11), in cooperation with at least one portion of the sidewall (111), the pressure of the cooling liquid in transit being of the pulsation type, the pulsation in the pressure being functional to the desired elastic transverse vibration induced on the portion of the sidewall (111).

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Frazione Brazzacco, Italy

Andrea Codutti