Abstract: A roll for a roll stand including a roll shaft with at least one roll ring mounted on the roll shaft, wherein the roll shaft is axially displaceable. The roll stand for rolling a metal strip may be, for example, a two-high stand, a four-high stand or six-high stand. The surfaces of at least two of the inner roll components enclosed by an outer roll ring have contours which are curved in the axial direction, wherein the curved contours are turned relative to each other by 180°.

Abstract: For a directly driven coiler for winding rolled strip into coils, a piston/cylinder unit is proposed which can be supplied with pressure medium through rotary feeds arranged on a shaft extension or on a coiler shaft.

Abstract: A rolling train with a hot-rolling group, furnaces arranged upstream of the hot-rolling group and at least two continuous casting machines as well as cutting shears in front of and possibly behind the furnaces, wherein a furnace having a great length is provided for each continuous casting machine, the furnaces are constructed so as to be transversely displaceable, and the furnaces can be moved from the continuous casting lines into a common rolling line which deviates with respect to its location from the continuous casting lines, wherein the furnaces are divided in the longitudinal direction thereof into segments, and wherein the segments can be moved transversely individually and independently of each other.

Abstract: A method for producing coated hot-rolled or cold-rolled products, particularly steel strip, and an apparatus for carrying out the method, wherein thin strip is cast especially by a travelling mold and the cast strip is guided on-line as a master strip into an inversion casting plant for strip coating, the surface of the coated strip is smoothed with rolls, and if necessary, the thickness of the coated and smoothed strip is reduced in a rolling process.

Abstract: A method and an apparatus for monitoring and controlling the quality of the galvannealed coating of steel strip immediately following the galvannealing step, wherein the hot galvanized coating of the steel strip produced by hot dipping is converted into FeZn phases by diffusion reactions through a thermal treatment in an annealing furnace at temperatures above the melting point of zinc. The measurement value used for the quality of the galvannealed coating of the steel strip is the visual appearance of the galvannealed coating recorded by a visual recording device in the form of measurement signals as the quality measurement value, wherein the measurement signals are processed by measurement technology and the resulting measurement values are used after conversion into control variables for the direct control of the annealing furnace.

Abstract: A roll stand arrangement for rolling wire with a finishing block arranged following the last stand of the intermediate group of a wire rolling mill and composed of fixedly connected roll stands with grooved rolls, and a skin pass block arranged following and having the same configuration as the finishing block, wherein the roll stands of the skin pass block have an oval/oval groove sequence and a subsequent round groove sequence. The sequence of grooves in the roll stands of the skin pass block is composed of two, three, four or more oval/oval successive grooves and, directly following these oval/oval successive grooves, one or two round successive grooves.

Abstract: A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand at the exit side and an intermediate edging stand arranged between the universal stands, and a roughing group arranged in front of the compact rolling group and composed of vertical roll stands and horizontal roll stands and/or universal stands. A rectangular preliminary section or a preliminary section having the approximate final dimensions is preshaped in the roll stands of the roughing rolling group in a number of shape changing passes and/or shape reduction passes, possibly reversing with or without the use of selectable grooves. Subsequently, the section is further shaped in the compact rolling group in several shape changing passes or shape reduction passes in the universal stand on the entry side.

Abstract: A method and a plant for reducing iron ore to pig iron in a blast furnace with the use of carbon, wherein a partial quantity of the carbon is admixed to the iron ore in the form of coke which ensures that the bulk material column is loosened and supported and that the gas can penetrate through the bulk material column in the blast furnace, and wherein the remaining partial carbon quantity is injected as a substitute reducing agent into the blast furnace. Prior to being injected into the blast furnace, the entire partial carbon quantity forming the substitute reducing agent is converted into a low-nitrogen reducing gas by gasification in a gasification reactor arranged spatially separate from the blast furnace.

Abstract: A tension control method for a rolling stock section located between a front roll stand and a rear roll stand of a rolling train, wherein a tensioning element with an actual adjusting force is adjusted relative to the rolling stock section, so that the rolling stock section is deflected by the tensioning element by an actual deflection; the actual adjusting force and the actual deflection are determined; and a tension existing between the front roll stand and the rear roll stand in the rolling stock section is adjusted such that the actual adjusting force approaches a desired adjusting force and/or the actual deflection approaches a desired deflection.

Abstract: A method and an installation for producing slabs in a continuous casting plant which includes a strand guiding unit arranged following the casting mold and divided into segments. Each segment is composed of a two-part segment frame whose frame parts are braced together by hydraulic cylinders. Rollers for supporting and conveying the solidifying cast strand are mounted in pairs opposite each other, wherein at least one of these rollers, i.e., the drive roller, is pressed with a defined adjusting force against the cast strand for transmitting the strand conveying forces.

Abstract: A device and a method for cutting a continuously travelling wire which emerges in the form of windings from a winding layer, wherein a cutting device arranged immediately following the winding layer. The cutting device includes a catching device for the targeted grasping of a winding arch and a device for cutting this winding arch. A device for controlling the sequence of movement of the catching and cutting devices are provided. The control takes place, for example, in dependence on the wire properties, such as, the wire diameter in the case of dimensional inaccuracies. In addition, the catching and cutting devices can be controlled in dependence on the position of operation of the winding layer.

Abstract: A planarity measuring roller is constructed as a loop lifter which is adjustable relative to a rolled strip. The loop lifter includes a plurality of measuring zones located next to one another over the width of the rolled strip. Each measuring zone includes a rotatably mounted individual measuring roller which is pivotable in a clockwise direction and interacts with a force measuring device. Each measuring roller is mounted in a pivotable housing-like lever frame. The pivot point of each lever frame, the point of rotation of the corresponding measuring roller and a force introduction point of the force measuring device arranged underneath of the pivot point of the lever frame form an approximately isosceles triangle.

Abstract: A mold for the continuous casting of metal includes a pouring portion with cooled long side walls and short side walls, wherein the pouring portion becomes narrower in the shape of a funnel in the casting direction until it reaches the size of the cast strand. In the funnel portion, the inner contours of the long side walls have in the casting direction from the top toward the bottom at least two points which have the property that they determine a straight line along which the inner contours of the long side walls are formed with at least one concave section and with at least one convex section in any selected sequence.

Abstract: An apparatus for positioning a smoothing roll which is mounted so as to be displaceable by a cantilever arm against the reeling mandrel of a strip coiler and to be adjustable particularly with a roll changing head against the reeling mandrel with the use of a force application unit. The roll change head includes a swivel arm which can be swivelled in a joint and is drivable to carry out a swivelling motion, wherein a steel roll is mounted at the free end of the swivel arm in a bearing, and an adjusting arm supporting the smoothing roll is mounted at the free end of the swivel arm, wherein the adjusting arm includes a force-controllable adjusting system for adjusting the smoothing roll against the strip coiler or the outer tube surface thereof, and wherein the force application unit for displacing the cantilever arm is a distance-controllable adjusting unit.

Abstract: An apparatus for the controlled cooling of hot-rolled sections, particularly beams, directly from rolling heat includes cooling sections or zones, wherein, seen with respect to the section to be cooled, a cooling section each is arranged above the section and on both sides of the section and below the section, and the cooling sections can be used individually or in combination, wherein each cooling section is composed of at least one nozzle or a group of interconnected nozzles, and wherein the nozzles can be controlled individually or together.

Abstract: A device with a stepped adjustment for adapting the vertical position of the rolls of a roll stand to the rolling line, wherein the rolls are supported on both sides in chocks and arranged so as to be raisable and lowerable in roll housings, particularly in a four-high skin pass stand or sizing stand operated with low rolling force. The chocks of one of the rolls have on their sides facing the roll housings a toothed segment and complementary toothed rails are arranged in the roll housings opposite the toothed segments and are movable toward and away from the toothed segments.

Abstract: A method and an arrangement for operating a rotating starting shear operating in a start-stop operation on rolling stock travelling at different speeds in wire mills, light-section mills, medium plate mills and billet mills, wherein the shear, whose gear system is connected through a coupling to a drive motor, is accelerated from the position of rest to approximately rolling speed and, after the cut has been carried out, is stopped again. A gear mechanism is arranged between the gear unit of the shear and the drive motor, wherein torsion-proof couplings are arranged between the gear unit of the shear and the gear mechanism and between the gear mechanism and the drive motor.

Abstract: A method and apparatus forproducing coated slabs of metal, particularly strips of steel, in which a metal slab is guided through the bottom of a vessel filled with molten metal having the same or different composition as the metal slab, wherein the dwell time of the metal slab is selected in dependence on the melting bath level, the casting speed, the metal slab thickness and the preheating temperature of the metal slab in such a way that the molten metal deposited on the metal slab has a desired thickness of a multiple of the initial thickness of the metal slab, and wherein the metal slab with the layer crystallized onto the metal slab is subjected to a smoothing pass after emerging from the melting bath. The smoothing pass is carried out when the surface temperature of the crystallized slab is smaller than the solidus temperature of the melting bath and, thus, at least the surface of the crystallized layer is solidified.

Abstract: A method and a device for placing wire windings onto a conveyor belt, particularly onto a Stelmor conveyor belt, wherein the wire windings are placed on the conveyor belt in an actual position relative to the belt middle. The wire windings are placed on the conveyor belt in a position-controlled manner relative to the belt middle. The device for carrying out the method includes a sensor for determining the actual position of the wire windings on the conveyor belt and a control unit, - wherein an actual position and a nominal position are supplied to the control unit and the control unit determines from the difference between the actual position and the nominal position a control signal for the control element and supplies this signal to the control element.

Abstract: A finishing section of a single-strand wire rolling train with two finishing blocks, wherein, for selectively rolling smaller and larger wire diameters, one of the finishing blocks is arranged in a first rolling line extending in the rolling line of the intermediate rolling section of the train and the other finishing block is arranged in a second rolling line extending parallel to the first rolling line, wherein the wire strand arriving from the intermediate rolling section is selectively supplied to one of the finishing blocks through a distributing guide unit arranged following the intermediate rolling section and the wire strand is conducted after rolling possibly over an additional distributing guide unit to a wire collecting unit arranged following the additional distributing guide unit. A finishing block intended for rolling only small wire diameters is arranged in one of the rolling lines and a finishing block intended for rolling only large wire diameters is arranged in the other rolling line.