Abstract: A component for a hot dip coating system, which comes into direct contact with an immersion bath of liquid metal during operation of the hot dip coating system, having a metallic base body, wherein at least one portion of a surface of the base body is provided with a three-layered coating, which includes a corrosion-resistant bonding layer arranged directly on the surface portion, a barrier layer arranged on the bonding layer, and a ceramic surface layer arranged on the barrier layer.

Abstract: A method for operating a coating device for coating a metal strip. The corresponding coating device has an electromagnetic strip-stabilizing device having a plurality of electromagnetic actuators or coils for applying forces to the metal strip. In order to ensure that the strip-stabilizing device is operated only within the operating limits thereof, the magnitudes of the set currents for the actuators or the coils are compared with a specified current threshold value or the forces applied to the metal strip by the actuators are compared with a specified force threshold value and the correction roller is moved into such an adjustment position that the magnitudes of the set currents are below the current threshold value or the magnitudes of the forces are below the force threshold value.

Abstract: A method of annealing and descaling hot-rolled austenitic stainless steel strip wherein. The steel strip is descaled in a connected plasma descaling installation after annealing and subsequent cooling. The plasma descaling is carried out under vacuum in a plurality of stages, and the steel strip is subjected to a controlled cooling between these stages and after the final stage by means of cooling rolls so that the steel strip has a temperature below 100° C. when exiting the plasma descaling installation. An apparatus to practice the method is also disclosed.

Abstract: The invention relates to a sealing gate (1) for strips for sealing a first chamber (2) in relation to a second chamber (3), a strip (4), in particular a metal strip, passing through both chambers (2, 3) and at least one sealing element (5) being provided for sealing the chambers (2, 3). The aim of the invention is to achieve an effective sealing action. To achieve this, the sealing element (5) has at least two gate elements (6, 7, 8, 9) that can be displaced in relation to one another and that have at least one sealing surface (10, 11, 12, 13), which is adapted to the edge contour of the strip (4) to be sealed.

Abstract: A rolling system has a rolling mill a rod workpiece, a wire block comprised of at least two roll stands downstream of the rolling mill, and a calibrating block comprised of three roll stands spaced apart in the direction downstream of the wire block. The workpiece is passed in the direction downstream in the direction from the rolling mill through the wire block and thereafter through the calibrating block with thickness reduction in each block. The gaps of the stands of the calibrating block are set at a fixed spacing and not varied during a rolling operation. A sensor measures the thickness of the workpiece upstream of the calibrating block, and gaps of the roll stands of the rolling mill or wire block are adjusted in accordance with the measured thickness such that the workpiece has a predetermined thickness on entering the calibrating block.

Abstract: A rolling-mill cooling unit has a cooling-unit conveyor transporting fanned-out loops of wire in a transport direction toward a coiler spaced downstream from the cooling-unit conveyor and serving to organize the fanned-out loops of wire into coils or bundles. A feeder conveyor extending in the direction has an upstream end juxtaposed with the cooling unit and a downstream end juxtaposed with the coiler and is operable to advance the loops of wire from the unit to the coiler. The entire feeder conveyor can be shifted relative to the coiler and to the cooling unit in the direction so as to displace the upstream and downstream ends relative to the cooling unit and coiler.

Abstract: A rolling system has a rolling mill a rod workpiece, a wire block comprised of at least two roll stands downstream of the rolling mill, and a calibrating block comprised of three roll stands spaced apart in the direction downstream of the wire block. The workpiece is passed in the direction downstream in the direction from the rolling mill through the wire block and thereafter through the calibrating block with thickness reduction in each block. The gaps of the stands of the calibrating block are set at a fixed spacing and not varied during a rolling operation. A sensor measures the thickness of the workpiece upstream of the calibrating block, and gaps of the roll stands of the rolling mill or wire block are adjusted in accordance with the measured thickness such that the workpiece has a predetermined thickness on entering the calibrating block.

Abstract: A rolling-mill cooling unit has a cooling-unit conveyor transporting fanned-out loops of wire in a transport direction toward a coiler spaced downstream from the cooling-unit conveyor and serving to organize the fanned-out loops of wire into coils or bundles. A feeder conveyor extending in the direction has an upstream end juxtaposed with the cooling unit and a downstream end juxtaposed with the coiler and is operable to advance the loops of wire from the unit to the coiler. The entire feeder conveyor can be shifted relative to the coiler and to the cooling unit in the direction so as to displace the upstream and downstream ends relative to the cooling unit and coiler.

Abstract: In a wire rod mill, the last rolling block or unit, either a finishing unit or a postfinishing rolling unit, with common drive is not used for traction control, but traction control upstream thereof is provided to regulate the cross section of the wire rod strand before entry into the last stage. The product is a wire rod strand of low cross sectional tolerance and high uniformity over the length of the rod.

Abstract: A method of straightening rolled sectional steel includes clamping and subsequently cooling at least a sectional steel whose maximum local cross-sectional temperature is below Ar1 and whose minimum local cross-sectional temperature is above a lower limit temperature, wherein already the lower limit temperature produces as a result of clamping a thermal elongation in all fibers of the sectional steel which is greater than the elongation which would be required for a plastification of the fibers which would be subjected to the greatest internal compressive stresses if the sectional steel were exclusively air cooled without clamping.

Abstract: A method of cooling section steel, particularly sectional steel girders, from rolling heat, wherein, prior to a final air cooling, a water cooling process is carried out in such a way that section steel portions with material concentrations are cooled at outwardly projecting portions of the steel sections over a width of application and a duration of application which are variable and subject to a predetermined cooling strategy supported by a process computer to a value which is at least still slightly above the transformation temperature Ar1.