Abstract: The invention is directed to a device for straightening a stream of a cooling medium for cooling a roll or a metal strip. This device comprise a hollow body, extending over at least part of the width of the roll or the metal strip, and a tube, arranged in the hollow body and extending in the direction of the width of the roll or the metal strip, wherein the hollow body is divided in the direction of the width of the roll or the metal strip into a number of chambers, and the tube comprises openings for introducing cooling medium into the chambers of the hollow body, and the chambers respectively comprise an opening for the flowing out of cooling medium from the hollow body.

Abstract: The invention relates to a method for to-be-cooled surface of cast material, rolled material (1) or a roll. Provided for the method is a nozzle, which comprises an inlet (3) and an outlet (5) lying opposite the surface to be cooled. Also provided is a preferably single-phase volume flow (V) of a cooling fluid, which is fed to the nozzle (2) via the inlet (3) and leaves the nozzle (2) through the outlet (5). According to the invention, the nozzle outlet (5) is mounted at a variable distance (d) from the surface to be cooled, wherein the volume flow (V) of the cooling fluid fed to the inlet (3) of the nozzle (2) is set in such a way that, in accordance with the Bernoulli principle, the nozzle (2) is sucked firmly against the surface (1) to be cooled. In addition, the invention is directed to a cooling device (10) for carrying out the method according to the invention and to a rolling device comprising this cooling device (10).

Abstract: The invention relates to a sealing device for installation in a roll arrangement between the roll journals of a roll and chock. The sealing device has an annular main body having sealing rims that extend radially outwards. Furthermore, the sealing device has an annular reinforcement element having a strip-like section which coaxially surrounds the main body on the outer side thereof. In order to ensure the dimensional stability and thus also the function of the sealing device even after the installation thereof in the roll arrangement, that is to say after said sealing device has been pushed onto the frustroconical roll journals, the reinforcement element according to the invention has, in addition to the coaxial strip-like section, at least one flange which is connected thereto and is connected to the sealing rim. Furthermore, the invention relates to said roll arrangement.

Abstract: A roller for a rolling mill with a casing, a left half pivot, and a right half pivot. The half pivots in the region surrounded by the casing are constructed as a truncated cone and form a left surface on the left half pivot and a right surface on the right half pivot. The left half pivot and the right half pivot have boreholes and corresponding grooves formed on the surfaces. The half pivots are inserted in the casing and are braced with one another by at least one tie rod. An hydraulic oil in boreholes and grooves is passed into or onto the left half pivot and the right half pivot. The hydraulic oil exerts a pressure on the casing to expand the casing. With the casing expanded, the stop surfaces and the face surfaces of the casing are pressed onto one another by the tie rod.

Abstract: The invention relates to a method, a computer program and a rolling mill train for cold rolling a metal strip (200). In order to achieve a shortening of undesired off-gauge lengths, the method according to the invention provides that the head (210) of the metal strip (200) already undergoes a thickness reduction at the first active rolling stand (n) in the rolling mill train, and then is transported on to the next rolling stand, in order to undergo a further thickness reduction there. The method according to the invention also provides for further reducing the initial pass thickness at the n-th rolling stand in accordance with the tensile stress that has built up in the meantime between the n+1-th and the n-th rolling stand.

Abstract: A method for drying a strip (3) or sheet metal that runs through a rolling mill is characterized in that the strip (3) or the sheet metal is cooled to a lower temperature in a cooling section by means of a coolant, in particular a cooling liquid, down-stream of a hot strip mill (1) or, in case of sheet metal, after passing through at least one roll stand (2), and in that the coolant, in particular the cooling liquid, and subsequently the moisture remaining on the strip (3) or the sheet metal is removed from the strip (3) or sheet metal by means of a drying apparatus (10).

Abstract: The invention relates to a method and a device for depositing a metal coil (200) on two stationary support points (110-1; 110-2). In order to be able to deposit even metal coils that have high internal residual stress in a stable manner on the two support points, according to the invention, a third support point (140) is pivoted against the outer circumference of the metal coil (200) if needed).

Abstract: The invention relates to a roll arrangement for use in metallurgical technology, comprising a roll that has a roll barrel and two roll necks, and at least one neck bushing for accommodating at least one of the roll necks in a rotationally fixed manner. A carrier element that functions as a form-locking rotationally fixed connection is arranged between the roll neck and the neck bushing. In order to increase the load-bearing capacity of the roll bearing without increasing the size of or the mounting space for the roll bearing and at the same time ensure easy assembly, the roll neck is mounted in the neck bushing with some radial play such that a circumferential cavity is formed between the neck bushing and the roll neck in the unloaded stated as a result of the radial play. In order to increase the size of the cavity, the roll neck or the inner surface of the neck bushing additionally has a concave contour or profile.

Abstract: A device and a method for measuring thickness in horizontal strip casting installations for casting strip or sections. A measuring device measures the thickness of the liquid or pasty melt in the mold. The measuring device operates without contact by a laser and an optical sensor that are arranged so that the surface of the liquid or pasty melt is monitored, whereby the thickness distribution over an entire width of the melt is measured. A measuring signal is generated, and a control signal is generated based on the measuring signal in order to control a device for distributing the melt.

Abstract: A roll stand (1) with at least one upper and one lower roll (2, 3) supported by respective backing rolls (4, 5) mounted on a common roll frame (8) and in bearings that are vertically displaceable with respect to each other for setting different roll gaps, with at least one axial shifter for one of rolls (2, 3) and with at least one bender comprising a bending cylinder (16) for bending the upper roll (3) is characterized in that the bender comprises horizontal traverses (12) and bending arms (13) at each ends of the upper roll (3), whereby for setting the roll gap height between rolls (2, 3) the roll (3) is guided by bending arms (13).

Abstract: The invention relates to a device and a method for handling a metal strip. The device comprises a coiling device (110) with a coiling mandrel (112) for winding the metal strip to form a coil (200) on the coiling mandrel and a coil stripper car (120) with supports (124) for receiving the coil (200) from the coiling mandrel and removing the coil from the coiling device (110). In order to additionally secure the metal strip in the coiling device during the transfer from the coiling mandrel onto the coil stripper care and during a transport by means of the coil stripper car, a first hold-down arm (130) is provided for exerting a first hold-down force (F1) onto the outer circumference of the coil (200) in order to press the coil onto the supports of the coil stripper car.

Abstract: The invention relates to a device for lateral guidance of a rolled strip transported on a roller bed, particularly a hot rolled strip in front of a winding device (3), having parallel first and second side guides provided on both sides of the rolled strip, said side guides being movable toward or away from one another by adjusting means that are adjustable independently of one another; the invention is characterized in that a control device (14, 15, 16), to which operating forces and/or positions of the side guides and/or of the rolled strip can be fed as output values in the guidance of the rolled strip, is provided for damping the periodic deviation of the rolled strip, and in that the control device (14, 15, 16) controls the positions of the side guides and/or forces that the side guides exert on the rolled strip based on the measured output values.

Abstract: The invention relates to a rolling system for rolling strip-shaped rolling stock, comprising at least one first (1, 5) and one second reel (20), and at least one reversing frame (8, 13) between the two reels (1, 5, 20) and comprising associated coil transport means (22, 23, 28) for feeding or removing coils of the rolling stock to and from the respective coil transfer stations (24, 29), if present, and comprising transverse transport means (27) for the coil transport between the coil transfer stations (24, 29, 30). The invention is characterized in that a single common coil transport means (25), by which the coils can be transported from or to the transverse transport means (27), is disposed downstream of the coil transfer stations (24, 29).

Abstract: A method for lubricating rolls, especially work rolls (2, 3) of a rolling stand, and rolling stock (6) passed between the rolls during the rolling operation, in which a lubricant-gas mixture, a lubricant-water-gas mixture, a lubricant-water mixture and/or a grease-medium mixture is applied to the rolls (2, 3) or the rolling stock (6) on the run-in side of the rolling stand, is characterized by the fact that the mixture is prepared with at least one mixing device (14, 17, 27, 29, 31, 35) in the area upstream of the rolling stand.

Abstract: The invention relates to a method of producing a metal strip (1) in a plant, comprising a continuous casting plant (2), a first furnace (3), a second furnace (4) and an adjoining rolling mill (5).

Abstract: In a method for winding hot-rolled strip (1), comprising —a decoiler mandrel (4), —at least one first pressing device (7), —at least one second pressing device (8), wherein the hot-rolled strip (1) is pressed from the first pressing device (7) and the second pressing device (8) toward the decoiler mandrel (4), the hot-rolled strip (1) is pushed or pulled away from the decoiler mandrel (4) between the first pressing device (7) and the second pressing device (8), thereby subjecting the hot-rolled strip (1) to a prebending step. The invention further relates to a device for winding hot-rolled strip (1).

Abstract: The invention relates to a rolling mill drive (1) having an axially displaceable toothed articulated spindle (3) extending between a toothed articulated element (50 arranged between an interlocking chamber (20) on the roller side and a toothed articulated element (52) arranged in an interlocking chamber (40) on the transmission side, wherein at least one of the interlocking chambers (20, 40) is filled with a lubricating medium, wherein the lubricating medium biases the toothed articulated spindle (3) with an axial force (Fws) directed towards the roll side (WS).

Abstract: An articulated spindle (3) which is arranged in particular in a drive of a rolling mill, comprises a coupling sleeve for establishing a connection to an articulated head, or an articulated head (4) for establishing a connection to a coupling sleeve (2), wherein the tongue (1) of the coupling sleeve (2) engages with a cylindrical opening (5) of the articulated head (4) that is located transverse to the rotational axis. A sliding block (19) is arranged between the articulated head and the tongue (1), said block being formed by two sliding bodies (21, 22), which have rotational body contours (23, 24) in two portions, said sliding bodies being arranged rotatably in a rotational body-shaped recess (25, 31) adjusted to the shape of the sliding bodies (21, 22) such that they can perform a pivoting motion in the articulated head (4).

Abstract: A casting/rolling installation for producing hot-rolled strip. In order to save investment costs for the roll changing device in a corresponding installation with two parallel casting lines, without a roll change taking place in the process in a less operationally reliable and more complicated manner, the roll changing device is configured in the form of a rotary table and arranged in the intermediate space between the two casting lines.

Abstract: An injector cooling block for holding at least one injector for introducing a medium into a metallurgical vessel. The injector cooling block is arranged in or on a wall of the metallurgical vessel. The injector block has at least one plate in which a cooling channel or a cooling bore through which cooling medium can flow is arranged. The cooling channel or cooling bore separate a hot zone from a cold zone. At least one measuring element for measuring temperature and/or mechanical elongation is arranged in the hot zone. The measuring element has at least one optical waveguide which is integrated into the hot zone or fastened to the hot zone.