Abstract: The invention relates to a method for producing flat products of steel from continuously cast slabs having a large or medium thickness or from thin bars, which are compressed and subsequently run through a blooming train and a finishing train. The invention is characterized in that the flat products are descaled on their strip edges prior to compression. The method is carried out in a rolling train which comprises at least a first compression device (1), a blooming train and a finishing train. The rolling train is characterized in that a first descaling device (2) for descaling the strip edges of the flat products is arranged upstream of the first compression device (1).

Abstract: The invention relates to a method for calibrating a rolling stand (3), wherein in order to determine the relative pivot position of the roller set for setting a symmetrical roll gap and/or for determining the extension of the rolling stand (3) before the actual rolling process, the roller set is pressed against each other under a radial preset force and the resulting deformation of the rolling stand is preferably measured on the piston-cylinder unit (6, 7). The pivot position of the roller set and/or the frame module (M) determined based thereon are mathematically used during the subsequent rolling of a rolling stock between the working rollers (1, 2) for adjusting the roller set.

Abstract: The invention relates to a device for actively tracking specific data on systems or the components of a metallurgical system, characterized in that at least one readable and writable memory medium for the specific data is fixedly connected to each component, and the specific data are modifiable periodically and/or on the basis of input. In addition, the invention relates to a metallurgical system, in particular an integrated foundry or a mini-mill, comprising at least one device according to the invention. Finally, the invention relates to the use of at least one device according to the invention in an electric steel mill or a converter steel mill and/or in systems of secondary metallurgy and/or in casting plants, in particular continuous casting machines, and/or in molten steel transport units and/or in furnace systerms and/or in hot and cold rolling mills and/or in rolled stock treatment systems, in particular strip treatment systems.

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 rotary union for supplying and/or discharging a medium under pressure into or out of an axial cavity of a rotating machine part, comprising a union part (12), which does not rotate and is fixed relative to the device, a rotary union part (15) and with bearing means as well as sealing components, which act in a radial sealing plane between the rotary union part (15) and the union part (12) fixed relative to the device. The rotary union is characterized in that the bearing means comprise individual step bearings (13, 14), which fix the radial distance between the union part (12) fixed relative to the device and the rotary union part (15).

Abstract: The aim of the invention is to produce stainless steel for all stainless steel products both in the austenitic and the ferritic range, based on liquid pig-iron and FeCr solids, without using a supply of electrical energy. According to the invention, the liquid pig-iron, after being pre-treated in a blast furnace, is subjected to a DDD treatment (dephosphorisation, desiliconisation and desulphuration), is heated, finished or alloyed and deoxidated. The quantity of slag-free liquid pig-iron that has been pre-treated in the blast furnace and a DDD device is separated and introduced into two classic “twin” AOD-L converters, where the required chemical process steps (of the heating, decarburisation and alloying stages) take place in parallel contrary processes using autogenous chemical energy, the heating stage being carried out first in the first twin AOD-L converter and the decarburisation being carried out first in the second twin AOD-L converter.

Abstract: A method for producing steel products (1) with optimum surface quality wherein the molten steel (1b) is produced in a process route (10, 100; 12; 13) that is selected according to a desired final microstructure (9), by melting in a furnace (2b) with an electrode system (31), and in a vacuum degassing system; or by melting in a furnace installation (35) or an individual furnace vessel (30), in a ladle furnace (25), and in a differential-pressure vacuum degassing system (43); or by melting in a furnace (2b) with additions of alloying materials (26), a partial-quantity degassing in the ladle furnace (25), or a vacuum degassing system (27) and a ladle degassing (27).

Abstract: A method for adjusting a roll segment of a strand guide of a slab-casting installation against a strand, wherein the roll segment has an upper and a lower roll support that each have an adjusting element for adjusting the two roll supports relative to each other. The method includes individual control of the individual adjusting elements, wherein the actual profile of the strand, including the heights of the right and left lateral edges of the strand, is detected and compared with a set profile that includes a predetermined set height, which is the same for the right and left lateral edges, and the individual adjusting elements of the roll segment are individually controlled based on the control deviation that results from the comparison so that the actual profile is adapted to the set profile, including equalization of the heights of the right and left lateral edges of the strand.

Abstract: The invention relates to a roller device (1) comprising a stand with support posts (2, 12, 33), wherein at least one roller (3, 13) of the roller stand is arranged in the space between the support posts and at least one adjuster device (5, 10, 30) is provided for adjusting the rollers (3), wherein the at least one adjuster device (5, 10, 30) is arranged between the rollers (3, 13) and the support posts (2, 2a, 2b, 2c, 2d, 12, 33) and comprises a pressure medium adjuster body (14, 23, 34).

Abstract: A method for adjusting a roll segment of a strand guide of a slab-casting installation against a strand, wherein the roll segment has an upper and a lower roll support that each have an adjusting element for adjusting the two roll supports relative to each other. The method includes individual control of the individual adjusting elements, wherein the actual profile of the strand, including the heights of the right and left lateral edges of the strand, is detected and compared with a set profile that includes a predetermined set height, which is the same for the right and left lateral edges, and the individual adjusting elements of the roll segment are individually controlled based on the control deviation that results from the comparison so that the actual profile is adapted to the set profile, including equalization of the heights of the right and left lateral edges of the strand.

Abstract: A production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefore, the melt is cast into a copper strip in a vertical and/or horizontal continuous strip casting process, and the hot copper strip is cleaned by milling the top and bottom face thereof, is subjected to a cold rolling process, and is prepared for shipping, or is subjected to an inspection and then prepared for shipping after being annealed, pickled, washed, dried, and optionally temper rolled.

Abstract: The invention relates to a device (100) for the connecting of strips to an endless strip with a clamping arrangement (110, 120) with a clamping device (110-r, 120-r) on the inlet side and a clamping device (110-l, 120-l) on the outlet side, a cutting arrangement (155) with an upper cutter (150) and a lower cutter (130) and with a joining arrangement, in which at least the clamping device (110-r, 120-r) on the inlet side and/or the clamping device (110-l, 120-l) on the outlet side is constructed as a premountable unit.

Abstract: The invention relates to a hot-rolling mill for cooling a leader or band (4) of a metal strand in a working roll (6, 7), in which a coolant is sprayed on the leader or the band (4), is characterized in that the leader or band (4) is shielded from contact by the coolant in the area of the band edges. Shielding devices (14, 15) are used for said purpose. A shielding device (20) can also be disposed in the area of a loop lifter, or in a cooler device between the pretreater and the final line.

Abstract: A method for casting a cast strand (4) in a continuous casting installation equipped with a process computer and having at least one casting machine, the process computer comprising a first software (2), which computes in real time and regulates the casting process, is characterized in that a second additional fast-computing software (1) in the process computer controls the casting process during the initial phase of a newly starting casting process or when there is a change in parameters of the cast strand to be cast during the ongoing process, in that the second software (1) processes currently gained data from the ongoing casting process and/or processes stored data from a database (8) and generates correction factors, with the help of which the second software (1) generates corrected target data for the casting process, until the time when the casting process is represented completely using the data calculated in real time, and the first software (2) regulates the casting process using only these data.

Abstract: The invention relates to a method for lubricating and cooling rollers (3,4,5,6) and metal strips (2) on rolling in particular, on cold rolling of metal strips (2), wherein, on the inlet side (7a) a minimal amount of pure lubricant (9) without a high water content is continuously supplied in an online controlled manner with a controlled viscosity and lubricity depending on a number of process data measurements (23) by means of a physical computer model (22) and the equivalent process data measurements (23) from the outlet side (8a) are also used online by the physical computer model (22).

Abstract: A gas supply system for a side blowing and/or bottom blowing metallurgical furnace with at least one tuyere which is mounted in the side wall and/or in the bottom of the furnace, wherein gas is conveyed through a line of the gas supply system to the tuyere and through the tuyere to the interior of the metallurgical furnace and emerges there in the form of bubbles. The gas supply system has an inflow restrictor which is assigned to the tuyere or is positioned upstream of the tuyere and reduces or interrupts the gas supply to the interior of the furnace at equal intervals of time.

Abstract: Disclosed are a method and an installation for producing steel products (1) having an optimum surface quality, especially extremely low carbon contents (UCL steel or IF steel), nitrogen contents, total oxygen contents, high-strength or stainless steel qualities.

Abstract: Disclosed is a support roll for a rolling mill, such as a plate rolling mill, flat rolling mill, or similar, comprising a jacket and a roll shaft which is embodied in several parts. The invention also relates to a method for producing a support roll.

Abstract: A method and a device for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least one plasma descaling unit in which it is subjected to a plasma descaling. The metal strip is subjected to an automatically controlled cooling process in a cooling unit following the plasma descaling in the one or more plasma descaling units in such a way that it has a well-defined temperature downstream of the cooling unit.

Abstract: A method and a device for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least one plasma descaling unit in which it is subjected to a plasma descaling. The metal strip is subjected to an automatically controlled cooling process in a cooling unit following the plasma descaling in the one or more plasma descaling units in such a way that it has a well-defined temperature downstream of the cooling unit.