Abstract: A strip deflector has a base body formed with a tip, a compressed-air chamber, and a nozzle for emitting compressed air. A compressed-air source in flow communication with the compressed-air chamber feeds compressed air to the compressed-air chamber and the nozzle. This nozzle has a first nozzle subpassage in flow communication with the compressed-air chamber and a second nozzle subpassage downstream of the first nozzle subpassage in a flow direction. The first nozzle subpassage is formed by a flank closer to the tip of the base body and an opposite flank remote from the tip of the base body, and, at a transition from the first nozzle subpassage to the second nozzle subpassage, the flank closer to the tip of the base body is bent away toward the tip of the base body so as to form a first separation edge.

Abstract: The invention relates to a strip deflector for deflecting a rolling medium from the surface of a metal strip. The invention further relates to a roll assembly, comprising a roll, adjacent to which the strip deflector is placed at a distance, and comprising the strip deflector according to the invention. The strip deflector consists substantially of a main body, in which a compressed-air chamber and a nozzle (116) connected to the compressed-air chamber in a flow-conducting manner are formed. The nozzle (116) comprises a first nozzle channel segment (116-I) connected to the compressed-air chamber (114) and a second nozzle channel segment (116-II) connected downstream.

Abstract: The invention relates to a method for adjusting the rolls (1, 2, 3, 4) of a roll stand (5), wherein the roll stand (5) comprises at least two interacting working rolls (1, 2), wherein one of the working rolls (1) is arranged in the roll stand (5) in a displaceable manner for adjusting a roll gap, and wherein the other working roll (2) can be rotated in the roll stand (5) in a working position, but for defining a passline (p) in the direction normal to the surface of the roll material is fixed in a non-displaceable manner.

Abstract: A system for use in a rolling train includes a roll stand (11) for rolling a metal stock movable along a rolling train line, rails (12) extending inside the roll stand transversely to the rolling train line, and a device for cleaning and drying at least end surfaces of spaced opposite chokes of the roll stand and movable on the rails inside the roll stand. The device has a plurality of jet nozzles, which can be directed towards the roll stand (11), for a liquid cleaning medium (16) and blow nozzles (22, 22a, 22b, 22c) for a drying medium.

Abstract: A roll stand having at least two interacting working rolls. One of the working rolls is arranged in the roll stand in a displaceable manner for adjusting a roll gap, and the other working roll can be rotated in the roll stand in a working position, but for defining a passline in the direction normal to the surface of the roll material is non-displaceably fixed. To increase rolling accuracy: a) the position of the working roll arranged in a fixed manner in the roll stand is determined; b) the determined value of the position is compared to a target value; c) the working roll fixedly arranged in the roll stand is adjusted depending on the comparison value determined in step b) using at least one adjusting element such that the position of the working roll fixedly arranged in the roll stand at least largely reaches the target value.

Abstract: The invention relates to a method for rolling strip-shaped rolling stock, in particular metal strip. This method is characterized substantially by the following procedure: the metal strip A exiting the pickling line passes through the two roll stands (3, 4) of the reversing roll stand, wherein the start of a subsequent metal strip B has already been welded to the strip end of the metal strip A before entering the pickling line (5), said start of the metal strip B is then rolled as well, specifically over a length corresponding to the wind-on length until tension is built up on the reel and likewise rims on the reversing reel (1), during the subsequent reversing the metal strip B is separated from the metal strip A such that the already rolled start of the metal strip B remains on the still unrolled remaining metal strip B, then the complete metal strip A is reverse-rolled.

Abstract: Equipment (10) for cleaning and drying roll stands, particularly roll stands in a rolling train, wherein a roll change device movable into the roll stand on rails transversely to the rolling line is provided for changing the rolls, wherein the device (10) is movable, similarly to the roll change device, on the rails (12) thereof and comprises a plurality of jet nozzles, which can be directed towards the roll stand (11), for a liquid cleaning medium (16) and blow nozzles (22, 22a, 22b, 22c) for a drying medium (24).

Abstract: The invention relates to a method for rolling strip-shaped rolling stock, in particular metal strip. This method is characterised substantially by the following procedure: the metal strip A exiting the pickling line passes through the two roll stands (3, 4) of the reversing roll stand, wherein the start of a subsequent metal strip B has already been welded to the strip end of the metal strip A before entering the pickling line (5), said start of the metal strip B is then rolled as well, specifically over a length corresponding to the wind-on length until tension is built up on the reel and likewise rims on the reversing reel (1), during the subsequent reversing the metal strip B is separated from the metal strip A such that the already rolled start of the metal strip B remains on the still unrolled remaining metal strip B, then the complete metal strip A is reverse-rolled.

Abstract: The invention relates to a method for adjusting the rolls (1, 2, 3, ) of a roll stand (5), wherein the roll stand (5) comprises at least two interacting working rolls (1,2), wherein one of the working rolls (1) is arranged in the roll stand (5) in a displaceable manner for adjusting a roll gap, and wherein the other working roll (2) can be rotated in the roll stand (5) in a working position, but for defining a passline (p) in the direction normal to the surface of the roll material is fixed in a non-displaceable manner.

Abstract: An apparatus for manufacturing a metal strip (1) includes a number of rolls (2, 3, 4, 5) over which the metal strip (1) is guided in a transporting direction under a strip tension that insures that the strip is flat to a large extent at least between two rolls (2, 3) and a light source (6) operable for illuminating an area of the metal strip (1) as it moves in the transporting direction. Two cameras (7, 8), which are located in a region of the light source (6) at a distance from each other, are operable for photographing the area of the metal strip (1) illuminated by the light source from two different directions.

Abstract: The invention relates to a reel mandrel (1) comprising radially mobile expansion segments (2) and/or closing strips (4, 13) arranged on the periphery thereof. According to the invention, the reel mandrel (1) is provided with axially arranged guiding grooves (12) on the periphery thereof, and the expansion segments (2) are provided with ribs (6). The invention further relates to a method for fixing and/or maintaining an expansion segment (2) and/or a closing strip (3, 13) on a reel mandrel (1).

Abstract: The invention relates to a method for manufacturing a metal strip (1), in which the metal strip (1) is guided over a number of rolls (2, 3, 4, 5) under such a strip stress (S), and is moved in a conveying direction (F), that it is largely flat at least between two rolls (2, 3). In order for it to be possible to inspect the strip in a simple and space-saving way, the invention provides for the inner tensile stresses which act in the metal strip (1) which is largely flat under tensile stress between the at least two rolls (2, 3), to be made optically visible and for the tensile stresses or tensile stress differences which are determined in this way to be utilized during the manufacture of the metal strip (1). Furthermore, the invention relates to an apparatus for manufacturing a metal strip.

Abstract: The invention relates to a device for adapting working rolls, in particular of four-high stands, to a rolling line with at least one pair of wedges (1, 1?) in a region between parallel, spaced from each other, rolling mill stands (2, 2?), which are displaceable along a horizontal slideway relative to the stands (2, 2?) by toggle lever adjusting means. To this end, the wedges (1, 1?) of the wedge pair are connected with each other at a fixed distance from each other, and for their displacement an arrangement of two toggle levers (4, 5) is provided of which one lever (4) is supported on one wedge (1) with at least one articulated joint (6) and another lever (5) is supported on an opposite stand (2?) also with at least one articulated joint, and both levers (4, 5) are connected with each other by a longitudinally adjustable toggle joint (7).

Abstract: An apparatus for rotationally locking a rolling-mill roll in the bearing mount LS in a rolling-mill frame has an axially shiftable housing fitted to the stub (WZ) of the roll, having a planar flange (FA) that in one position of the housing bears on an abutment face of an abutment element fixed in the bearing mount (LS).

Abstract: The invention relates to a method of strip blow-off at an exit of rolling mills for producing a spotless and clean rolled strip, according to which the strip (5) is blown off with at least one nozzle (16) arranged above the upper side (14) of the strip, and a rolling oil/emulsion stuck on the strip (5) is aspirated from their edges (18?, 18?) by a suction device (20), and wherein on the upper side (14) and a lower side (15) of the strip (5), a chamber (21, 22) in which overpressure prevails, is formed and to a corresponding device.

Abstract: A device for bending the rolls in a rolling stand having several rolls with the use of bending blocks, which are mounted at the run-in end and the run-out end between the roll chocks and the housing windows and can be acted upon by control elements. A piston-cylinder is assigned to the bending blocks of one of the mill housings, and a vertical positioning mechanism is assigned to the bending blocks of the opposite mill housing.

Abstract: An apparatus for rotationally locking a rolling-mill roll in the bearing mount LS in a rolling-mill frame has an axially shiftable housing fitted to the stub (WZ) of the roll, having a planar flange (FA) that in one position of the housing bears on an abutment face of an abutment element fixed in the bearing mount (LS).

Abstract: A device for recirculating oil from the end face of the barrel and the peripheral surface of the roll neck of rolling mill rolls. A sealing race arranged between the bearing elements and the end face of the barrel is mounted on the roll neck. A first conical ring body has a conical outer surface and a cylindrical inner surface that is seated on the outer surface of the sealing race and is sealed from the race, whereby inclination of the conical outer surface towards the end face runs towards the roll axis. A second conical ring body is rigidly mounted in the bearing housing and has a conical inner surface, which conical inner surface is arranged some distance opposite the conical surface of the first conical ring body, such that the two conical surfaces form a hydraulic pump gap that conveys oil away from the end face.

Abstract: The invention relates to a device for adapting working rolls, in particular of four-high stands, to a rolling line with at least one pair of wedges (1, 1?) in a region between parallel, spaced from each other, rolling mill stands (2, 2?), which are displaceable along a horizontal slideway relative to the stands (2, 2?) by toggle lever adjusting means. To this end, the wedges (1, 1?) of the wedge pair are connected with each other at a fixed distance from each other, and for their displacement an arrangement of two toggle levers (4, 5) is provided of which one lever (4) is supported on one wedge (1) with at least one articulated joint (6) and another lever (5) is supported on an opposite stand (2?) also with at least one articulated joint, and both levers (4, 5) are connected with each other by a longitudinally adjustable toggle joint (7).

Abstract: The invention relates to a reel mandrel (1) comprising radially mobile expansion segments (2) and/or closing strips (4, 13) arranged on the periphery thereof. According to the invention, the reel mandrel (1) is provided with axially arranged guiding grooves (12) on the periphery thereof, and the expansion segments (2) are provided with ribs (6). The invention further relates to a method for fixing and/or maintaining an expansion segment (2) and/or a closing strip (3, 13) on a reel mandrel (1).