Abstract: A soft reduction device (1) of a round-section metal product, having liquid or partially liquid core, for reducing the thickness of said metal product coming from a continuous casting machine, the device comprising at least two soft reduction units (2, 3); in which said at least two soft reduction units (2, 3) are arranged in series; in which each soft reduction unit (2, 3) is provided with a group of only three rolls arranged at 120° from one another; and wherein the group of three rolls (7, 8, 9) of one soft reduction unit is offset by a predetermined angle with respect to the group of three rolls (10, 11, 12) of an adjacent soft reduction unit.

Abstract: Rolling stand for oblong metal products comprising a plurality of rolling rolls (11) each installed on a respective rotation shaft (12). Between at least one rotation shaft (12) and the respective rolling roll (11), a coupling member (15) is provided and is configured to couple the rolling roll (11) and the rotation shaft (12) to each other. The coupling member (15) comprises a tubular body (16) interposed between the rolling roll (11) and the rotation shaft (12) and provided with a chamber (17) in which a deformer element (18) is inserted mobile.

Abstract: A soft reduction device (1) of a round-section metal product, having liquid or partially liquid core, for reducing the thickness of said metal product coming from a continuous casting machine, the device comprising at least two soft reduction units (2, 3); in which said at least two soft reduction units (2, 3) are arranged in series; in which each soft reduction unit (2, 3) is provided with a group of only three rolls arranged at 120° from one another; and wherein the group of three rolls (7, 8, 9) of one soft reduction unit is offset by a predetermined angle with respect to the group of three rolls (10, 11, 12) of an adjacent soft reduction unit.

Abstract: A steel plant for the production of long metal products includes a continuous casting machine and a rolling mill disposed contiguous and in direct succession downstream of the continuous casting machine. The continuous casting machine is provided with at least two casting lines and the rolling mill is provided with at least two rolling lines. The plant includes a single feed apparatus for feeding molten metal, and the at least two casting lines are configured to receive molten metal from the single feed apparatus.

Abstract: A steel plant for the production of long metal products comprises a continuous casting machine, a rolling mill disposed downstream of the continuous casting machine, and one or more transfer paths for the semifinished cast products, configured to connect the continuous casting machine and the rolling mill. The steel plant also comprises at least one maintenance and/or heating furnace, a discharge plate for the semifinished cast products, and an aerial transfer device.

Abstract: A suspension device (8) for a converter, comprising a central structure (8?), adapted to be fixed to a container (2) of the converter (1), a first lateral structure (29), arranged at a first side of the central structure and adapted to be fixed to a first surface (10, 11) of a supporting ring (3) of the container, a second lateral structure (28), arranged at a second side of said central structure and adapted to be fixed to the surface (10, 11), wherein two wedge-shaped elements (15, 15?) are provided, each element being provided between the central structure and a respective lateral structure and configured so as to slide on sliding surfaces (23, 24, 24?) connected respectively to the central structure and to the respective lateral structure, wherein each wedge-shaped element is crossed by at least one tie-rod (16, 16?) connected thereto, and wherein elastic means (17) are provided, which are associated to or intrinsic with said one tie-rod and configured to maintain a wedging of the wedge-shaped element.

Abstract: The descaling device (100) of the interior of a tube (1) comprises a supporting structure (9), a conveyor (2) for conveying the tube (1) with an inclinable stretch to arrange the tube in an inclined position by an angle with respect to the horizontal plane, a lance (3) with nozzles (4) to spray a fluid inside the tube (1) to carry out the operation of descaling the inner surface. The lance (3) is fixed to guides (7) above the conveyor (2) in an inclined position with respect to the horizontal plane, and may axially slide within the tube (1) during the descaling operation by spraying water into the tube.

Abstract: An oscillating descaler (1) for semi-finished metallurgical products comprises:—a passageway (2) delimited by two opposite input and output sections (3, 4) crossable by a semi-finished product (10) to be descaled according to a rectilinear crossing direction (X) oriented from the input section (3) to the output section (4),—a manifold (20) for a pressurized fluid extended according to a longitudinal direction (Y) defined between first and second longitudinally opposite ends (21, 22), arranged so that the longitudinal direction (Y) is not parallel to the crossing direction (X),—at least one nozzle (30) for spraying a jet (31) according to a spray direction (Z) which is coaxial to a hole (30a) of the nozzle (30) and inclined towards the input section (3) and towards one of the ends (21, 22) of the manifold (20, 20b),—motor means (M) for generating a rectilinear oscillating motion of the jet (31) along the longitudinal direction (Y).

Abstract: Rolling stand for oblong metal products comprising a plurality of rolling rolls (11) each installed on a respective rotation shaft (12), between at least one rotation shaft (12) and the respective rolling roll (11). A coupling member (15) is provided and is configured to couple the rolling roll (11) and the rotation shaft (12) to each other. The coupling member (15) comprises a tubular body (16) interposed between the rolling roll (11) and the rotation shaft (12) and provided with a chamber (17) in which a deformer element (18) is inserted mobile.

Abstract: An apparatus to feed and pre-heat a metal charge to a melting furnace of a steelworks comprises a feeding and pre-heating tower separate from the melting furnace provided with at least one compartment to temporarily contain said metal charge, transfer means to transfer said metal charge to said melting furnace and conveying means to convey the fumes exiting from the melting furnace to said compartment. The apparatus also comprises a post-combustion chamber, disposed adjacent to and below said compartment, and connected on one side to said compartment and on another side to said conveying means, the post-combustion chamber being configured to determine the expansion of the fumes introduced by the conveying means and to direct said expanded fumes toward said compartment along a path such as to determine a desired residence time of said fumes suitable to obtain at least the substantial complete combustion of the unburned gases present in said fumes.

Abstract: Device for the removal of scale from the surface of a metal product (11) by delivering water under pressure, said device comprising a box-like structure (20) defining an internal space (22) for the passage of the water under pressure, connected to an exit fissure having a gap (23) with a gap value of less than a millimeter, the gap extending continuously for at least the entire width of the metal product (11).

Abstract: A tilting converter comprising a container (2), defining a first longitudinal axis X, having a bottom (2?); a support ring (3), coaxial to the container (2) and distanced from said container, provided with two diametrically opposite supporting pins (6), defining a second axis Y orthogonal to the first axis X, adapted to allow a rotation of the converter about said second axis Y; a suspension system, connecting said container (2) to said support ring (3), comprising groups (12) of first suspension devices (7), said groups (12) being arranged substantially equidistant to each other along a cylindrical side surface coaxial to the first axis X, in a position between the support ring (3) and the bottom (2?); each of said first suspension devices (7) being provided with a plurality of longitudinal elastic elements, each longitudinal elastic element being arranged alongside the next so as to define a laying plane, and a gap (15, 15?) is provided between one longitudinal elastic element and the next.

Abstract: A converter comprising a container (2) defining a first axis X; a support ring (3), coaxial to the container and spaced therefrom, provided with two diametrically opposed supporting pins (6), defining a second axis Y orthogonal to the first axis X, adapted to allow a rotation of the converter about the axis Y; suspension elements, connecting said container to said support ring, clamped at a first end to the container and at a second end to the support ring so as to not require any maintenance as compared to traditional systems which use spherical joints and pins which are subject to wear, thus saving hours of maintenance and plant standstill.

Abstract: A handling machine for rails, arranged in line and immediately downstream of a rolling plant, which allows both to easily handle the rail for transferring it from the roller table to the thermal treatment zone, and to ensure an optimal gripping of the rail along its longitudinal extension, thus effectively contrasting its bending and variations while allowing a longitudinal movement of the rail caused by thermal shrinkage, thus avoiding damages both to the external surface of the rail and to the handlers. A rail handling process is also described, which optimizes moving, positioning along a roller table and maintaining the rail substantially rectilinear during the thermal treatment to which it is subjected.

Abstract: A template (1) for centering rollers at the foot of an ingot mold, the ingot mold being provided with a round section crystallizer into which the template can be inserted passing therethrough from a first end to a second end, the template comprising a round section tubular frame (5), defining a longitudinal axis (X) and having a plurality of longitudinal slots (6) arranged at an equal angular distance from one another; a plurality of longitudinal plates (7) configured so that each longitudinal plate is inserted into a respective longitudinal slot (6) and can move in radial direction through said respective longitudinal slot; at least one inflatable chamber (8, 8?), housed into the tubular frame (5) and at least partially covering the longitudinal extension of a frame stretch adapted to remain inside the crystallizer when the template is inserted into said crystallizer, said at least one inflatable chamber being adapted to expand so as to move said longitudinal plates outwards in radial direction to adhere the

Abstract: A steel plant for the production of long metal products comprises a continuous casting machine, a rolling mill disposed downstream of the continuous casting machine, and one or more transfer paths for the semifinished cast products, configured to connect the continuous casting machine and the rolling mill. The steel plant also comprises at least one maintenance and/or heating furnace, a discharge plate for the semifinished cast products, and an aerial transfer device.

Abstract: A steel plant for the production of long metal products comprises a continuous casting machine and a rolling mill disposed contiguous and in direct succession downstream of the continuous casting machine. The continuous casting machine is provided with at least two casting lines and the rolling mill is provided with at least two rolling lines. The plant comprises a single feed apparatus for feeding molten metal, and the at least two casting lines are configured to receive molten metal from the single feed apparatus.

Abstract: The descaling device (100) of the interior of a tube (1) comprises a supporting structure (9), a conveyor (2) for conveying the tube (1) with an inclinable stretch to arrange the tube in an inclined position by an angle with respect to the horizontal plane, a lance (3) with nozzles (4) to spray a fluid inside the tube (1) to carry out the operation of descaling the inner surface. The lance (3) is fixed to guides (7) above the conveyor (2) in an inclined position with respect to the horizontal plane, and may axially slide within the tube (1) during the descaling operation by spraying water into the tube.

Abstract: Bottom electrode or anode for continuous direct current arc furnaces, provided with a cooling system which allows to improve the effectiveness of the cooling action of the bottom electrode, made in the shape of bimetallic billet, for the purpose of ensuring a sufficient height of the portion of said electrode which remains solid during the operation of the furnace, also when there is a very high electric load.

Abstract: An apparatus (1) for cooling a bar (10) comprising: —an outer casing (3), —a passageway (2) defining a crossing direction (X) for the bar (10), —at least one drum (4) comprising a plurality of cooling lines (6) each having at least one respective through cavity (9) parallel to the crossing direction (X) and a respective cover (15) which can move between an open position and a closed position, the drum (4) being accommodated in the casing (3) and rotational about a rotation axis (Y) to move the cooling lines (6) between an operating position (11), in which the cavity (9) is aligned with the passageway (2), and at least one resting position (12), in which the cavity (9) is separated from the passageway (2), the casing (3) being shaped so as to touch and hold the respective cover (15) in the closed position when the cooling line (6) is in the resting position (12).