Abstract: A horizontal strip storage unit, particularly for sheet steel, includes a looping carriage which is movable on a frame at a variable distance relative to a stationary strip guide roller. The looping carriage has at least one guide roller for a strip storage loop whose length is variable. Several support carriages with support rollers are arranged between the strip guide roller and the looping carriage. A flexible endless drive element guided around guide rollers is connected to the looping carriage. The drive element is guided so as to interact with a drive wheel of each support carriage, wherein the travel mechanism of each support carriage relative to the travel path of the looping carriage is derived from the flexible drive element.

Abstract: A production plant for producing hot-rolled flat products includes a rolling train composed of a plurality of roll stands, a run-out table with devices for cooling the hot strip, and with subsequently arranged coiling machines for coiling the strip. At least the first roll stand of the rolling train is a reversing stand. At least one reeling furnace each is arranged in front of and following the reversing stand. A controllable cooling unit is provided between the reversing stand and the reeling furnace in front of the reversing stand.

Abstract: An arrangement for working or machining rolls which are mounted through chocks in roll housings. The arrangement includes a unit with abrasives for each roll, wherein the unit is mounted so as to be rotatable relative to the roll and so as to be adjustable relative to the roll. The adjustable unit includes a roller mounted in the chock of the roll to be subjected to grinding, wherein the roller is adjustable through bearings thereof relative to the roll to be subjected to grinding.

Abstract: An upsetting tool of a pair of upsetting tools for the deformation of continuously cast slabs in a slab upsetting press is composed of two connecting rods which are driven through two eccentric shafts and which support the upsetting tool and guide the upsetting tool in parallel direction. Hinged to the connecting rods is a piston/cylinder unit for producing a movement of the upsetting tool synchronously with the slab movement on a roller table. The upsetting tool has upsetting surfaces for acting on one of the two longitudinal sides of the slab. The upsetting surfaces extend parallel or inclined relative to the direction of movement of the slab. The upsetting surfaces are located next to one another so as to form edges extending transversely of the direction of movement of the slab, wherein upsetting surfaces inclined away from the longitudinal side surfaces of the slab are arranged following or possibly in front of an upsetting surface extending parallel to the travel direction of the slab.

Abstract: A supporting frame of a slab upsetting press includes a supporting frame for receiving a pair of upsetting slides and tool slides connected to the pair of upsetting slides. The supporting frame includes two housing beams supporting the pair of upsetting slides and, arranged spaced above the housing beams supporting the pair of upsetting slides, two additional housing beams, and connecting beams which connect the respective ends of the housing beams and receive the bearings of the screw-down spindles or the balancing pistons. The individual housing beams form independent structural elements, wherein the housing beams arranged one above the other form a pair of housing beams whose ends have plane side surfaces which can be placed on corresponding plane side surfaces of crossheads which are also constructed as independent structural components and receive the bearings of the screw-down spindles and can be connected by screws to the crossheads.

Abstract: A separating plant for separating metals from an electrolyte which contains metal, particularly for coating steel strip, includes successively arranged vertical coating cells in which the strip to be coated is guided from an upper deflection roller and/or current-carrying roller to a lower deflection roller and from there to another upper deflection roller and/or current-carrying roller. The upwardly or downwardly travelling strip portion passes through a gap between vertically arranged anodes and an electrolyte flow which is circulated by means of pumps is fed into the gap, preferably in a direction opposite the strip travel direction. Two oppositely arranged walls of each coating cell are constructed as anode plates and adjacent anode plates of successive coating cells form a separating chamber.

Abstract: A device for automatically positioning a roll stand with grooved rolls and rest bars and roll fittings arranged in front of the roll stand relative to roll center includes a stationary guide frame for receiving the supports of the roll fitting. The roll stand is mounted on the guide frame so as to be displaceable relative to this support and so as to be fastenable relative to the support. The supports of the roll fittings are hinged to the guide frame so as to be pivotable about an axis extending parallel to the roll axes and transversely to the rolling direction.

Abstract: A method of compensating forces of force components resulting from horizontal movements of the rolls in roll stands for hot-rolling and cold-rolling of flat products, wherein the roll stands are equipped with work rolls and with one or more back-up rolls, with hydraulic adjusting units and with force measuring devices on the opposite side of the roll gap and with hydraulic devices for the horizontal displacement of the work rolls. The pressures in the two adjusting cylinders are utilized for determining the rolling forces on one side of the roll gap and the forces indicated by the force measuring devices are utilized for determining the rolling forces on the opposite side of the roll gap, and all axial forces in the stand are computed during the rolling operation by including the axial forces of the work rolls which can be determined through the pressures in the displacement cylinders of the work rolls.

Abstract: A method and an arrangement for the controlled formation of loops of rolling stock between two roll stands, particularly in the finishing or intermediate trains of small and medium iron trains. In the method, the rolling stock emerging from the roll stand is allowed to drop as a result of gravity, the front end of the rolling stock is then deflected in the direction of the subsequent roll stand and the rolling stock is temporarily supported during the deflection phase until the front end of the rolling stock has entered the subsequent stand and the loop control unit stabilizes the loop. The arrangement for carrying out the above-described method includes a support and guide member for at least the rear roll stand of two roll stands. The support and guide member is inclined downwardly and extends toward the front roll stand.

Abstract: A billet guiding unit of a continuous casting plant for thin slabs includes guide rolls supported on oppositely located frames, wherein the frames are tensioned relative to each other against stop surfaces by means of tension rods. Hydraulic cylinders for extending or stretching the tension rods are mounted between corresponding stop surfaces of the frames. The distance between oppositely located rows of rolls of the frames are corrected by determining a lower deviation side of the slab by carrying out a continuous measurement of the thickness of the slab sides, by determining from the difference of the dimensions the required extension of the tension rods on the lower deviation side and by applying to the hydraulic cylinders the pressure required for the extension of the tension rods.

Abstract: A method and an arrangement for rolling strip with axially displaceable rolls, particularly wear-resistant rolls. Rolls with increased diameter end portions are used. The rolls are axially displaced relative to each other in such a way that the rolled strip is in contact over the width thereof with the portions of the rolls having the smaller diameter. With increasing temperature of the rolls and, thus, thermal cambering of the rolls, the rolls are displaced in opposite direction relative to each other until areas of the increased diameter end portions are moved over edge areas of the rolled strip.

Abstract: The invention is directed to a hot-rolling process and a hot-rolling mill for metal strips (5) having one or more roll stands with work rolls (1, 2). In order to prevent surface defects on the work rolls (1, 2), a coolant liquid is sprayed on the entry side in a narrow region extending immediately in front of the roll gap exclusively by a series of flat jet nozzles in such a way that their core jets primarily strike the surface of the work rolls or are directed into the roll gap for direct cooling and in that the entering metal strip is acted upon at the same time by the same coolant liquid for protecting the surfaces of the rolls from the radiated heat of the metal strip. The spraying of the coolant liquid is regulated in such a way that the metal strip is cooled only in a very narrow outer zone. In so doing, the temperature at the surface of the work rolls (1, 2) is adjusted in such a way that it lies below the boiling point of the coolant liquid at least immediately in front of the roll gap.

Abstract: A method and a plant for regenerating zinc sulfate electrolyte in steel strip electrogalvanizing processes by precipitating dissolved iron from electrolyte circulating through a coating cell. A partial quantity of the circulating electrolyte to be regenerated is removed from the coating cell and the dissolved iron is oxidized to Fe.sup.3+ by a redox-controlled addition of oxidizing agents. Subsequently, by raising the pH value to the precipitation limit of Fe.sup.3+ by a controlled addition of a ZnO/water suspension or a ZnCO.sub.3 /water suspension, the dissolved iron is precipitated as sludge. Any excess ZnO or ZnCO.sub.3 is then dissolved by adding fresh electrolyte. The precipitated iron sludge is conducted through a suitable filter such as a filter press, a filter belt, a decanter, etc., and the precipitated iron is filtered out in this manner. Subsequently, the purified partial quantity of the electrolyte is returned to the coating cell.

Abstract: A belt-type filter apparatus for removing foreign particles from liquid baths includes a basin containing the liquid, a filter belt which is constructed as an endless perforated circulating support belt and/or a filter belt fleece which can be wound from a roller and may be placed on the circulating support belt, a low pressure chamber with intake openings arranged in the basin and connected to devices for producing negative pressure, and guide rollers which act on the support belt and/or filter belt fleece in such a way that the support belt and/or filter belt fleece are introduced from the top into the basin, are conducted over the intake openings of the low pressure chamber and are then conveyed toward the top out of the basin. The low pressure chamber is composed of a cylindrical drum which is mounted in the basin so as to be rotatable about a horizontal axis. The interior of the cylindrical drum forms the low pressure chamber and the cylindrical wall of the drum has the intake openings.

Abstract: A shearing machine for trimming flat material, particularly sheets and strips of metal, includes a rotary blade shear with rotary blade shafts which support the rotary blades and are mounted in an upper blade housing and a lower blade housing. For adjusting the blade gap and the blade overlap in dependence on the material thickness and the material strength, a transverse eccentric is mounted between the upper and lower shear housings so as to connect these housings. The shearing machine further includes a center cut shear with rotary blade shafts which support the rotary blades and are mounted in an upper blade housing and lower blade housing, a frame supporting the center cut shear, and a blade gap adjusting device with a reversible transverse eccentric, wherein the blade gap adjusting device is mounted between the frame and the upper rotary blade of the center cut shear and acts with its transverse eccentric on the end of the movably constructed upper blade housing at the side of the blade.

Abstract: In a light section rolling mill, particularly wire rolling mill, for optimizing the product quality and/or output of the finishing train, at least one standard two-stand roughing block or group is arranged in front of and/or following the finishing train. Standard two-stand roughing blocks can be combined into roughing block units having four stands, six stands, eight stands or ten stands, and these units can be arranged in front of and/or following the finishing train.

Abstract: A method and a rolling stand arrangement for rolling in a reversing operation a finished section from a preliminary section produced in a continuous casting plant, wherein the preliminary section has a web-like portion corresponding to a web of the finished section and flange-like increased thickness portions corresponding to flanges of the finished section. The rolling stand arrangement includes a rolling unit in a first rolling line with a free runout and a vertical stand for acting on the flange-like increased thickness portions of the preliminary section in order to upset the web-like portion of the preliminary section. A compact rolling stand group arranged in a second rolling line includes a first universal stand on an entry side, a second universal stand on an exit side, and an edging stand arranged between the first and second universal stands. The first rolling line and the second rolling line extend parallel to one another.

Abstract: In a method for the production of hot-rolled wide strip in a production plant which includes a continuous casting plant for thin slabs having a thickness of between 40 and 70 mm, an equalizing furnace and a rolling mill, wherein the temperature of the thin slab when exiting the continuous casting plant is above 950.degree. C., the surface temperature of the slab is lowered between the continuous casting machine and the equalizing furnace over a sufficient depth of the slab, so that a conversion of the structure from austenite to ferrite/perlite takes place.

Abstract: A method and an arrangement for severing and controlled cooling of individual rods from a rolled section, particularly from a section of preferably high-grade steel which emerges hot from rolling at final speed from the rolling line of a finishing train, wherein the section is divided during its passage through parting shears into cut lengths and wherein a cut length each is conveyed after severing to an annealing strip or an annealing furnace. The rolled section is supplied to parting shears whose knives rotate on both sides of the section in a horizontal plane and which, when severing the section, displace the resulting section ends in the horizontal plane laterally relative to each other by a certain distance.

Abstract: A straightening machine for rolled beams, particularly hyper-beams, includes two straightening disks which are mounted on a straightening shaft and rest against the flanges of the beams from the inside, wherein at least one of the two straightening disks is axially displaceable. A support ring is arranged between the straightening disks. The support ring has distributed over the circumference thereof a plurality of hydraulic cylinders. The adjusting pistons of the hydraulic cylinders are connected to the axially displaceable straightening disk.