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

Andrea De Luca

Alfredo Poloni

Giuseppe Bordignon

Ivan Paiaro

Nuredin Kapaj

Marco Ansoldi

Luca Entesano

Matteo Nobile

Brian W Botham

Stefano Del Tedesco

Massimiliano Isera

Daniele Andreatta

Gianluca Bazzaro

Gianni Zomero

Andrea Tonoli

Miroslav Zerajic

Edi Faggiani

Fabio Flumian

Nicola Amati

Milorad Pavlicevic

Rolando Paolone

Luciano Vignolo

Romano Sellan

Fausto De Marco

Stefano Terlicher

Dario Lestani

Nikolas Salvador

Andrea Bonera

Antonio Sgro′

Antonio Sgro'

Carlo Persello

Federico Tortul

Luca Pecoraro

Carlo Vergano

Carmine Pristera'

Carmine Pristera′

Giuseppe Romeo

Claudio David

Guido Carnelutti

Andrii Popov

Francesco Adami

Continuous casting apparatus, comprising a mold and a crystallizer for the continuous casting of a metal product. The mold is provided with primary cooling means using a cooling fluid and associated with the walls of the crystallizer. A plurality of cooling members is installed downstream of the mold to perform a secondary cooling of the product, said cooling members comprising a plurality of delivery nozzles configured to deliver a liquid for cooling the product.

Crystallizer for the continuous casting of a metal product, and corresponding casting method

Method to obtain a continuous casting apparatus to cast, through the casting cavity of a crystallizer of a mold, a cast product with a polygonal cross section.

Method to obtain a continuous casting apparatus and continuous casting apparatus thus obtained

Crystallizer for the continuous high-speed casting of a metal product (P), which has a casting cavity () defined by walls () connected to each other in correspondence with edges () and provided with cooling means ().

A continuous casting and rolling plant for the continuous production of steel bars or profiles, the plant comprising in sequence, along a processing line, a continuous casting machine adapted to cast a billet; a first cutting device; a second cutting device; a rolling train adapted to roll the billet; wherein the continuous casting machine comprises a crystallizer, and is adapted to cast the billet at least at a first casting speed vand at a second casting speed vgreater than the first casting speed v; wherein the first cutting device is arranged at a first distance from the crystallizer expressed in meters, along the processing line, calculated according to a specific mathematical relation.

Continuous casting and rolling plant for the production of metallurgical products

Method for the continuous casting of a product (P), chosen from billets or blooms, along a curved casting line (), the method providing to cast a liquid metal (M) in a crystallizer () having a tubular cavity () with an octagonal cross section.

Continuous casting method and corresponding apparatus

Method for the continuous casting of a product (P) along a curved casting line (), provided with a crystallizer () having a tubular cavity () with a polygonal cross section defined by a determinate number of sides (n). The product (P) exiting from the crystallizer () is curved along the casting line () by support and curving rollers () and without the aid of lateral containing sectors of the cross section of the product (P).

The active vibration damping system of a rolling mill comprises a rolling stand and an adjustment system for the bending of the rolling rolls (') having hydraulic actuators (iv) acting on the chock () of the rolling rolls () and hydraulic feeding circuits () and injectors (iv), preferably piezoelectric injectors, directly inserted into the chambers (iv) of the hydraulic actuators (iv) with the advantage of exploiting the dampening effect resulting from the high- pressure oil injection.

Active vibration damping system of a rolling mill

A control device () for a stopper () comprises: &#x2014;an outer casing (), &#x2014;a control rod () sliding through the casing (), rigidly attachable to the stopper (), &#x2014;a hydraulic circuit () including a double-acting hydraulic cylinder () and a reversible hydraulic pump (), the hydraulic cylinder () having a first and a second chamber () between which a piston () slides, the hydraulic pump () being connected directly to the first and second chamber () by means of a first branch and a second branch () of said hydraulic circuit (, respectively, the piston being rigidly attached to the control rod (), the hydraulic circuit () being entirely housed in the outer casing (), &#x2014;a control circuit () connected to the hydraulic circuit () to control the position of the piston ().

Stopper control device

A conveying device () for conveying rolled bar segments, continuously exiting from a cutting shear (), comprising at least two conveying channels () for conveying the bar segments; at least one separation wall () separating a first conveying channel () from a second conveying channel (); and at least one fixed partition (), provided below the wall () and which separates the first channel () from the second channel (); the fixed partition () is configured so that, at speed, when a rolled bar is deviated to pass from a direction towards the first channel to a direction towards the second channel, the tail of a first bar segment () advances in the first channel () by passing below the fixed partition (), while the head of a second bar segment () after the first segment () advances in the second channel by passing above the fixed partition.

Conveying device of rolled bars exiting from a cutting shear, cutting machine and cutting process thereof

Vibration device for a conveying apparatus () to convey a metal charge in a longitudinal direction (X) comprising at least two vibration mechanisms () each disposed on opposite sides of the conveying apparatus () so as to feed the metal charge. The vibration mechanisms () comprise at least a first plurality of eccentric masses () having their mass barycenters (B) oriented in parallel directions to each other, and a second plurality of eccentric masses () having their mass barycenters (B) disposed angularly offset with respect to the disposition of the barycenters of the first plurality of eccentric masses ().

Vibration device for an apparatus for conveying a metal charge to a melting plant

A control device () for an oscillating table (), comprising: &#x2014;a closed and pressurized hydraulic circuit (), &#x2014;a hydraulic actuator () connected to said hydraulic circuit () and adapted to be connected to the mobile part of the oscillating table () to adjust the position thereof, in which said hydraulic actuator () is a double-acting cylinder having a first chamber () and a second chamber () delimited from each other by a sliding piston () rigidly connected to a first rod () which is rigidly restrainable to said mobile part, in which said hydraulic circuit () comprises at least one reversible hydraulic pump () directly connected to at least one of said first chamber () and second chamber ().

Control device for oscillating table

An oscillating descaler () for semi-finished metallurgical products comprises:&#x2014;a passageway () delimited by two opposite input and output sections () crossable by a semi-finished product () to be descaled according to a rectilinear crossing direction (X) oriented from the input section () to the output section (),&#x2014;a manifold () for a pressurized fluid extended according to a longitudinal direction (Y) defined between first and second longitudinally opposite ends (), arranged so that the longitudinal direction (Y) is not parallel to the crossing direction (X),&#x2014;at least one nozzle () for spraying a jet () according to a spray direction (Z) which is coaxial to a hole () of the nozzle () and inclined towards the input section () and towards one of the ends () of the manifold (),&#x2014;motor means (M) for generating a rectilinear oscillating motion of the jet () along the longitudinal direction (Y).

Oscillating descaler and method for descaling a semi-finished metallurgical product

A vibration damping system by means of a hydraulic actuation system, in particular for rolling mills, comprising at least one hydraulic actuator () having a movable part () and a corresponding hydraulic feeding circuit (), and hydraulic damping means () for a vibrating force acting on the movable part () of the hydraulic actuator (); the damping means () being connected to the hydraulic circuit () to actuate a damping of the vibrating force, wherein that the damping means () comprise a double chamber cylinder () having a first chamber () hydraulically connected to the hydraulic circuit (), and a movable part () connected to an electric damping part (), with the first chamber () hydraulically connected to and communicating with the second chamber () of the double chamber cylinder () by means of a calibrated pipe ().

Vibration damping system by means of a hydraulic actuation system

A template () 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 (), defining a longitudinal axis (X) and having a plurality of longitudinal slots () arranged at an equal angular distance from one another; a plurality of longitudinal plates () configured so that each longitudinal plate is inserted into a respective longitudinal slot () and can move in radial direction through said respective longitudinal slot; at least one inflatable chamber ('), housed into the tubular frame () 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 them to the inner wall of the crystallizer.

Template for centering rollers at the foot of an ingot mold

A coil laying head comprising a rotor () having two or more conduits ('), a selector tube () coaxially arranged with respect to the rotor () to guide a rolled product into one of the conduits (&#x2032;), a main control, connecting means between the main control and the rotor () for setting in rotation the rotor (), a phase shifter system ((), including two nonmoving components ((,),(,)), an input component () connected to the main control, an output component () connected to the selector tube (), a first group of side pinions (&#x2032;) meshed on the input component and on one of the nonmoving components and a second group of side pinions () meshing on the output component and on the other nonmoving components, connection means () connecting the first group of side pinions with the second group of side pinions to drive this latter in rotation according to the axis (X), angular phase shift adjustment device (,) between the first and the second nonmoving component.

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Remanzacco, Italy

Andrea De Luca