Abstract: The invention relates to a bending and balancing device for axially shiftable work rolls (10, 10?) of a rolling mill, especially of a four-high rolling mill, guide blocks (2) being provided at both sides in the window of every mill housing (1) on the level of the work roll inserts (3, 3?) and the force of bending and balancing cylinders (5) being transmissible onto the work roll inserts that are guided in the axial direction and so as to be shiftable in the vertical direction. The guide blocks are subdivided into respective upper and lower guide blocks (2, 2?), the upper guide blocks (2) are mounted in the mill housing window so as to be vertically shiftable, the lower guide blocks (2?) are mounted in the mill housing window so as to be fixed or so as to be vertically shiftable, and a bending and balancing cylinder (5) is arranged in every of the associated upper and lower guide blocks and is guided by the same and engages with the upper and the lower work roll insert.

Abstract: If a mandrel for extruding metal pipes, having two axially offset pressing surfaces with different radial embossing and having a transition region between these two pressing surfaces has a support surface in the transition region then the negative effect of narrowing, which arises owing to the mandrel shifting from a first pressing position, in which the first of the two pressing surfaces interacts with a die, to a second pressing position, in which the second pressing surface interacts with the die, can be minimized.

Abstract: In order to improve the quality of pipe-like work pieces, a rolling mill has at least two successive consecutive rolling stages that have mandrel rods. A threading line for the mandrel rod of the second rolling stage can lie on an extraction line for the mandrel rod of the first rolling stage. The same advantage can be achieved in a rolling method for the production of pipe-like work pieces, comprising at least two successive consecutive rolling stages, wherein the two rolling stages perform the rolling with the use of mandrel rods. The work piece is brought from the mandrel rod of the first rolling stage onto the mandrel rod of the second rolling stage, without entirely emptying an interior of the work piece and/or without changing the direction of movement of the work piece or braking the work piece in the meantime and accelerating it once again.

Abstract: In a multi-roll table ring-rolling mill and method, a mandrel roll can be switched from a rolling state into a free-running state, when a predetermined ring diameter is reached, even if the roll gap minimum has not yet been reached, in order to improve the size accuracy of the rolled rings. A mandrel roll table rotating about a mandrel table axle is used, along with at least one main roll rotating about a main roll axle and first and second mandrel rolls that are mounted in the mandrel roll table, and a relief device to relieve at least the first mandrel roll of rolling forces. The main roll axle and the mandrel roll table axle are mounted in unchangeable manner and eccentric to one another, at least during the rolling process. The relief device acts independent of the main roll axle and the mandrel roll table axle are eccentric to one another.

Abstract: Sensitive hollow blocks or tubes are elongated in a hot-forming elongator while maintaining, if possible, the internal structure that is present or that forms immediately after casting, and thereby, in the case of suitable method management, even thin-walled tubes or tubes rolled from centrifugally cast hollow blocks can be made available to a sufficiently operationally reliable extent. As a result, for the first time, it is possible for rolled centrifugally cast composite material tubes to be made available and for composite material hollow. blocks produced using centrifugal casting to be utilized for the production of a seamless tube.

Abstract: In the context of a method for producing heavy plate (4) from a steel alloy, comprising the continuous casting of a steel melt and primary forming of an obtained casting strand to produce a slab, and then forming or hot rolling the slab from the casting heat in multiple forming steps to produce a desired heavy plate dimension, followed immediately by a heat treatment of the heavy plate (4), effecting a targeted cooling of the obtained heavy plate (4), wherein the heavy plate (4) is cut to a desired individual plate length before or after its heat treatment as seen in the production direction (3), a solution is provided for producing heavy plate that permits the flexible production of heavy plate of variable qualities. This is achieved by carrying out the heat treatment in the temperature range of 150° C.-1100° C.

Abstract: A plate stretcher includes two clamping heads that are directed at one another and can be displaced relative to one another, to apply a clamping force directed along a stretching direction, by way of a pressure element that absorbs the clamping force, and at least one transverse straightener that acts perpendicularly to the clamping force. A method for stretching a plate in a plate stretcher transversely straightens the plate during stretching of the plate.

Abstract: In a powder press, a spacer that is effective between a die plate and an opposite yoke is integrated into the die plate, particularly if the die plate is provided in an adapter, thus increasing the reliability of set-up processes.

Abstract: A method for operating a casting/rolling system and to a corresponding system for casting and rolling an endless strand material. The casting/rolling system comprises a strand casting machine and a rolling train arranged downstream of the strand casting machine. The method has the following step: controlling the drive for the rollers of the first roller frame of the rolling train by means of a drive control in response to a target value specification of the pass sequence model. Furthermore, the drive of the at least one strand guiding roller is controlled by a strand guiding roller drive control in response to a target value specification of the strand casting machine drive model.

Abstract: Disclosed is a rolling mill, in particular a rolling mill having more than one mill stand, comprising at least two rolls (30) which are mounted in a roll bearing in a mill stand to absorb rolling forces, further comprising means (40) for moving at least one roll relative to the mill stand as well as means (50) for determining the roll pass, the determining means having a pass reference (54) and a spatial reference (56) as well as means (58) for measuring the relative position between the pass reference and the spatial reference. In order to create a rolling mill that provides as accurate information as possible about the roll pass, the pass reference and/or the spatial reference is/are arranged peripherally in relation to the power flow occurring between the roll and the mill stand.

Abstract: A press for producing a molded part from pourable material has an apparatus for driving a die that includes a cylinder unit having a cylinder housing and having a cylinder piston. The cylinder housing is the actuator of the cylinder unit and the cylinder piston is the stator of the cylinder unit.

Abstract: The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2). In order provide an improved method for recovering especially copper from slags, the invention provides that the metal-containing slag is heated in a first furnace (1) constructed as an AC electric furnace or a DC electric furnace, and the melt is introduced from the first furnace (1) into a second furnace (2) which is constructed as a DC electric furnace. Further, the invention is directed to an arrangement for extracting a metal from a slag containing said metal.

Abstract: In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.

Abstract: In order to shorten set-up times, a press for producing a molded part from pourable material, having an apparatus for driving a die comprising a cylinder unit having a cylinder housing and having a cylinder piston is proposed, wherein the cylinder housing is the actuator of the cylinder unit and the cylinder piston is the stator of the cylinder unit.

Abstract: A method for producing a metal product, wherein in a strand casting system, liquid metal is output as a slab from a mold vertically downward in a conveying direction, is guided along a strand guide, and is deflected into the horizontal, wherein the slab is heated in a furnace or inductively downstream of the stand casting system.

Abstract: A method for rolling rolling stock, wherein a water-based cooling lubricant is applied to the rolling stock and/or to at least one roller which forms a roll gap, at least one water-soluble and tribologically active additive being added to the water-based cooling lubricant prior to application to the rolling stock and/or to the at least one roller.

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: The invention relates to a drawing die arrangement having a drawing tool that acts on an elongated workpiece, and having a drawing tool support on which the drawing tool is mounted, counteracting the drawing tool, in which support a measurement device that measures the mass distribution of the workpiece material is disposed on the drawing tool, wherein a coupling medium circulated between the measurement device and the drawing tool is provided. Furthermore, the invention relates to a workpiece guide and to a drawing system.

Abstract: The invention concerns a hot-rolling mill comprising a finishing train (1) for finishing rolling stock, in particular a strip, the finishing train (1) comprising a number of rolling stands (2, 3, 4) which follow one another in a conveying direction (F) of the rolling stock. According to the invention, in order to improve the rolling force level during finishing, there is disposed at least between two rolling stands (2, 3, 4), following one another in the conveying direction (F), at least one heat-insulating element (5) by means of which the rolling stock can be protected from heat losses.

Abstract: The invention concerns a 4-high/6-high/18 HS cassette-type roll stand in which bending force is transmitted to bending journals (6) of roll inserts (7) by piston-cylinder units that are connected with Mae West blocks (3). Here, the piston at the piston rod (1) is fixedly connected with the Mae West block (3) and the cylinders (4) fit around the bending journals (6) at the inserts (7) of the rolls, so that thereby bending force can be transmitted directly to the bending journals (6) of the roll inserts (7).