Abstract: A cooling attachment can be releasably fastened to a work machine, which has a shaft in which a rod-like tool is guided with a rotary or hammering action and exits the shaft at a free end. The cooling attachment has a housing that encloses the work machine and in particular the shaft thereof and the tool that exits it, the latter only partially. Formed within the housing is a first cooling channel for conducting a coolant from an inlet opening to the tool exiting the free end of the housing shaft. In order to improve the cooling of the tool without cooling the workpiece to be machined, at least one connecting hole is provided, at the free end of the housing shaft, between the first cooling channel and a second cooling channel, in order to divert the coolant from the first cooling channel into the second cooling channel.

Abstract: A system for the continuous casting and subsequent flat rolling of a steel strip with an austenitic and/or ferritic microstructure and a thickness of less than 1.0 mm comprises a casting device with which a raw steel strip with a thickness in the range of 1.50 to 4.0 mm can be continuously cast. At least one hot rolling stand is coupled to the casting device, with which the raw steel strip can be roughed into the steel strip immediately after the casting process while still in the austenitic and/or ferritic microstructure range. At least one rolling module is arranged immediately after the hot rolling stand coupled to the casting device. The rolling module includes, in this order, a cooling device, a heating device and a hot rolling stand with which the roughed steel strip can be hot-rolled in the austenitic and/or ferritic microstructure range to specifications into the steel strip.

Abstract: A system (1) and a method for thermomechanically rolling long steel semi-finished products (2) includes: a first rolling unit (5); a first thermomechanical sizing block (8) arranged downwards in the transport direction of the first rolling unit (5); a first cooling device (6) arranged between the first rolling unit (5) and the first thermomechanical sizing block (8); a separating device (14) arranged downstream of the first thermomechanical sizing block (8) in the transport direction; a second cooling device (11) arranged between the first thermomechanical sizing block (8) and the separating device (14); and a coil winding device (13) arranged downstream of the separating device (14) in the transport direction.

Abstract: An oil film bearing includes a journal bush and accommodates a conical roll journal of a backup roll in a rolling mill stand. In order to form a sufficiently large lubricant film gap between the inner side of the journal bush and the outer surface of the roll journal during rolling operation when passing through the angular range with maximum pressure load, and at the same time to prevent the axial forces acting on a fastening ring holding the journal bush on the roll journal in the axial direction from becoming too great, the journal bush to be designed in accordance with the following formula: 0.35<3.6/a (D?B)+kD<0.5, where D refers to the outer running diameter of the journal bush, a refers to the projected cone length of the conical longitudinal portion, k refers to a sliding coefficient, and B refers to the large cone diameter.

Abstract: The present application relates to a burner for a shaft melting furnace, in particular for a copper shaft melting furnace, comprising a first chamber with an inlet opening, via which an oxygen-containing gas can be supplied to the burner, and an outlet opening, which is arranged at a distal end of a conically tapering sub-portion of the first chamber; a second chamber, which is connected to the conical sub-portion of the first chamber and which has a burner nozzle; a combustion gas line, which opens into the first chamber and via which a combustion gas can be supplied to the burner; and a mixing nozzle, which is arranged in the outlet opening of the first chamber and which has a mixing chamber via which the oxygen-containing gas and the combustion gas can be mixed to form a combustion gas mixture.

Abstract: A method for rolling a ring-shaped rolling product (5) having an open cylindrical cross section in a ring rolling machine (1) with inductive heating of the rolling product (5) during the rolling process uses at least one inductor (12) which is held at a predefined coupling distance relative to the rolling product (5) and is tracked or carried along during the shaping process in accordance with the change in dimensions of the rolling product (5). An alternating magnetic field, preferably with a frequency of between 4 and 10 kHz, is coupled directly into the rolling product (5) using the inductor (12).

Abstract: The present application relates to a heat treatment unit, in particular a cooling hood, including a chamber with an inlet opening through which a gaseous cooling medium can be fed to the chamber, and a slot-shaped outlet opening through which the gaseous cooling medium can be discharged faster. The chamber includes a central chamber segment and a first and a second outer chamber segment extending from the central chamber segment, and both outer chamber segments have a cross-section tapering proportionally towards their distal ends, and a device for the heat treatment of hot-rolled long steel products.

Abstract: A device (1) for drying and/or preheating metallic and/or non-metallic materials, preferably scrap, comprises a receiving container (3) and a scrap basket (7) which is arranged in the receiving container (3) and has a gas-permeable bottom area (9). The receiving container (3) has at least one process gas inlet line (6) in its wall (4), via which a process gas with a temperature in the range from 200 to 1600° C. can be introduced into the receiving container (3), and at least an injector nozzle (19) arranged coaxially within the at least one process gas inlet line (6) via which a cooling gas can be introduced into the process gas.

Abstract: A system for the thermomechanical rolling of long semi-finished steel products includes a first rolling unit; a second rolling unit, arranged downstream of the first rolling unit; a first thermomechanical sizing block, arranged downstream of the second rolling unit; a second cooling device, arranged between the second rolling unit and the first thermomechanical sizing block; a cooling-bed, ring-laying and/or coil-winding device, arranged downstream of the first thermomechanical sizing block; a third cooling device, arranged between the first thermomechanical sizing block and the cooling-bed, ring-laying and/or coil-winding device; and a structure-sensor device, which is arranged between the first thermomechanical sizing block and the cooling-bed, ring-laying and/or coil-winding device, and can be used for determining directly in the ongoing process a martensitic structure, in particular a proportion of martensite in percent by area, in the thermomechanically rolled long semi-finished steel product or in the s

Abstract: A flatness measuring apparatus for measuring the flatness of a metallic strip, including a measuring roller which has a roller axis and which makes contact with the strip for the measuring the flatness. The measuring roller is connected to a cooling system, using which the measuring roller can be cooled. To ensure that a high degree of measuring accuracy can be maintained even at high temperatures, the cooling system has a nozzle bar that extends parallel to the roller axis. At least one spray nozzle is arranged on the nozzle bar, using which cooling medium can be sprayed on the surface of the measuring roller in a spraying direction. The spraying direction meets a surface section of the measuring roller, and the angle between the spraying direction and the tangent on the measuring roller at the location of the surface section is less than 30°.

Abstract: An electroplating method and a system for electrolytically coating a steel strip, in particular for the automotive sector, with a coating based on zinc and/or a zinc alloy utilizes pulse technology.

Abstract: The invention relates to a cleaning device (10) for liquids, in particular for oil based liquids, and comprises a housing (12), which contains liquid or through which liquid flows, and at least one cleaning body (16), which is accommodated within the housing (12) and to which the liquid can be supplied, and the material of the cleaning body (16) is designed such that impurities contained in the liquid can be introduced and absorbed therein. The cleaning body (16) is attached in a cover (13) of the housing (12).

Abstract: A device for the contactless determination of at least one property of a metal product during the metallurgical production of the metal product comprises a housing and at least one measuring device comprising a transmitting unit and a receiving unit. An electromagnetic field is generated by the transmitting unit and directed onto the metal product, thereby inducing a physical interaction in the material of the metal product, and a remaining and/or resulting part of this physical interaction is subsequently received by the receiving unit. At least one component of the measuring device comprising the transmitting unit and/or the receiving unit can be moved relative to the housing or the metal product moving therein, in order to thereby set or selectively change a predetermined distance to the metal product for the transmitting unit and/or the receiving unit.

Abstract: A camera module (10) for use with a burner (1) for a shaft melting furnace, in particular a copper shaft melting furnace, is arranged on the burner (1) or on an observation device (9) of the burner (1). The camera module (10) includes a housing (101) having a first opening (104) and a second opening (105), which is arranged axially opposite the first opening (104) and is closed off by an inspection glass (106) a beam splitter (108) arranged in an optical viewing axis (109) extending axially through the housing (101) between the two openings (104, 105); and a camera (112), the lens (113) of which is arranged perpendicularly to the viewing axis (109) and is aligned with the beam splitter (108), and a burner (1).

Abstract: A device for determining orientation of an object, including a measurement body, which reflects electromagnetic radiation and can be brought into physical contact with a surface of the object to determine the orientation. The device includes: a measurement carriage movable along the object during the determination of the orientation and which has a sliding surface that can be brought into physical contact with the object; a retaining unit which retains the measurement body and is connected to the measurement carriage so as to be pivotable between a maximal position, in which the measurement body protrudes beyond the sliding surface on the object side, and a minimal position, in which the measurement body does not protrude beyond the sliding surface on the object side; and a restoring device that applies a force to the retaining unit toward the maximal position.

Abstract: A method and a device can be used for optically measuring a thread on an end of a metal pipe by at least one measuring head which is fastened to a manipulator. The measuring head is preferably freely positionable in relation to the metal pipe and has at least one optical measuring path for measuring the thread and at least one position detector. The method includes at least the following method steps: A) providing the metal pipe in a measurement position; B) determining the spatial position of a longitudinal axis of the metal pipe by means of the at least one position detector before and/or while the measuring head is positioned in a measurement position; C) aligning the measuring head parallel to the longitudinal axis of the metal pipe before and/or while the measuring head is positioned in the measurement position; and D) carrying out the optical thread measurement.

Abstract: In a method for the online determination of at least one rolling parameter when rolling a rolling material rolled along a rolling line in a rolling mill including at least two rolls on a roll stand, the rolling material is guided past or through at least one measuring device during the rolling, which interacts with a rolling material variable of the rolling material, the rolling material variable being changeable along the length of the rolling material, and outputs a measurement signal, wherein: (i) the measurement signal is transferred into the frequency space, and the rolling parameter is determined from the measurement signal transferred into the frequency space, and/or (ii) a frequency inherent in the change of the rolling material variable is determined from the measurement signal, and the rolling parameter is determined on the basis of the determined frequency.

Abstract: A method and a device for guiding and centering a metallic rolling stock in a rolling mill having at least one assembly that is arranged in a rolling line and at least one rolling mill stand for shaping the rolling stock are disclosed. The method includes the use of lateral guide means, which exert a lateral force onto the moving rolling stock at different locations of the rolling line, wherein the method further includes the process of centering the inflow of the rolling stock ahead of a first assembly and/or ahead of a first rolling mill stand of the rolling mill using first lateral guide means and the process of aligning rolling stock downstream transversely to the rolling line using second lateral guide means, wherein the process of centering the inflow includes a funnel-shaped, flat guiding of the rolling stock and a point-shaped guiding of the rolling stock.

Abstract: In order to provide an adjustment of the roll gap under load with high positioning accuracy and regulation accuracy, a cross-rolling unit for adjusting rolls operating under load with, disposed on a force-absorbing roll stand, a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting, wherein the mechanical setting unit includes two mutually displaceable mechanical subassemblies having a common axis of symmetry and the hydraulic setting unit includes at least two mutually displaceable hydraulic subassemblies having respectively one central axis, has the mechanical setting unit and the hydraulic setting unit disposed in the force-absorbing roll stand as a common subassembly. The axis of symmetry of at least one of the mutually displaceable mechanical subassemblies and the central axes of each of the mutually displaceable hydraulic subassemblies are the same.

Abstract: An extrusion press for extrusion of a material to be pressed through a die has a recipient that holds the material to be pressed, and a module that can be displaced relative to the die. The module can be acted on, during extrusion, by an electric motor drive, with the force required for extrusion. The electric motor drive is connected to the module that is displaceable relative to the die, by a bearing unit that has play perpendicular to the force; and/or during extrusion, drives contraction devices for contraction of a region of a tension element that stands under tension, which element counters the force required for extrusion by tension, and/or is a linear drive, which displaces a module that is fixed in place relative to the die during extrusion and the module that is displaceable relative to the die during extrusion, relative to one another, during extrusion.