Sms Demag Ag

Sms Siemag Aktiengesellschaft

Sms Schloemann-Siemag Aktiengesellschaft

Sms Group Gmbh

Sms Demag, Inc.

Wolfgang Denker

Hans-Peter Richter

Johannes Alken

Hans Georg Hartung

Klaus Klamma

Michael Hanisch

Dieter Daub

Andreas Berendes

Kerstin Spill

Armin Klapdor

Helmut Kuhn

Winfried Leisten

Michael Schäfer

Bernhard Klein

Joachim Schmelzer

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.

Strip deflector and roll assembly

The invention relates to a method for adjusting the rolls () of a roll stand (), wherein the roll stand () comprises at least two interacting working rolls (), wherein one of the working rolls () is arranged in the roll stand () in a displaceable manner for adjusting a roll gap, and wherein the other working roll () can be rotated in the roll stand () 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. In order to increase the rolling accuracy, the invention proposes the following steps: a) determining the position (S) of the working roll () arranged in a fixed manner in the roll stand (); b) comparing the determined value (S) of the position to a target value (S); c) adjusting the working roll () fixedly arranged in the roll stand () depending on the comparison value determined in step b) using at least one adjusting element () such that the position (S) of the working roll () fixedly arranged in the roll stand () at least largely reaches the target value (S). The invention further relates to a roll stand comprising at least two interacting working rolls.

Method for adjusting the rolls of a roll stand and roll stand

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 () 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 (), 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 (), 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.

Method for rolling strip-shaped rolling stock, in particular metal strip

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

Expansion reel mandrel

The invention relates to a method for manufacturing a metal strip (), in which the metal strip () is guided over a number of rolls () under such a strip stress (S), and is moved in a conveying direction (F), that it is largely flat at least between two rolls (). 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 () which is largely flat under tensile stress between the at least two rolls (), 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 (). Furthermore, the invention relates to an apparatus for manufacturing a metal strip.

Method of and apparatus for manufacturing a metal strip

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 (') in a region between parallel, spaced from each other, rolling mill stands (&#x2032;), which are displaceable along a horizontal slideway relative to the stands (&#x2032;) by toggle lever adjusting means. To this end, the wedges (&#x2032;) 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 () is provided of which one lever () is supported on one wedge () with at least one articulated joint () and another lever () is supported on an opposite stand (&#x2032;) also with at least one articulated joint, and both levers () are connected with each other by a longitudinally adjustable toggle joint ().

Device for adapting working rolls to a rolling line

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).

Apparatus for rotationally locking a roller-mill roll in a bearing mount in a mount window of a rolling-mill frame

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 () is blown off with at least one nozzle () arranged above the upper side () of the strip, and a rolling oil/emulsion stuck on the strip () is aspirated from their edges (&#x2033;) by a suction device (), and wherein on the upper side () and a lower side () of the strip (), a chamber () in which overpressure prevails, is formed and to a corresponding device.

Method of and apparatus for strip blow-off

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.

Device for recirculating oil in rolling bearings

The invention relates to a method of rolling a strip-shaped in-process stock, in particular a metal strip, with which, a metal strip () is unwound from a coil () held on an unwinding reel (), is fed into a reversing rolling mill (), is rolled, and is wound-up onto a winding-up reel () to form a coil (), wherein the metal strip () is reversibly conveyed from the unwinding reel () to the winding-up reel () until a set thickness is reached and, with each passing of the reversing rolling mill (), is subjected to a reduction of thickness, and wherein an end of the metal strip () of a first coil is welded to a beginning of the metal strip () of the second coil, and the metal strip () of the first coil is temporarily stored in a strip store during a welding process, and finally, the in-process stock consisting of two lengths is reversibly rolled to a final dimension, and an additional length is welded to the end of the in-process stock before the last pass. The invention also relates to an installation for effecting the method and in which the unwinding reel () is used as a strip store for the reverse pass.

Method of and installation for rolling in-process stock

A rolling mill frame for the rolling of different rolled stock which requires different rolling forces and which has working rolls, back-up rolls, optionally a roll being device for the working rolls and optionally a device for adjusting and balancing the back-up rolls. The mill has pairs of adjusting cylinders between the roll stand and the chocks of the rolls which avoid large friction losses. The adjusting cylinders are each comprised of a telescoping cylinder in which a first cylinder with a large diameter for high rolling forces and a concentric cylinder with smaller diameter for smaller rolling forces are provided.

Rolling mill stand for the rolling of different rolled stocks which require different rolling forces

The invention relates to a gripper for residual windings (), which may be wound from residual strip (), running from strip plants at the roll end, where said gripper can be pivoted or displaced about a strip plant and which can be embodied for a more rational operation mode, whereby the gripper (), in addition to the function there of as drawing device (), is embodied as winding device ().

Gripper for residual windings which may be wound from residual strip running from strip plants at the roll end

An auxiliary adjusting device for a rolling mill stand includes a adjusting shaft, a cylindrical member forming an adjusting spindle and having a first outer thread cooperating with the inner thread of a support sleeve fixedly connected to the cross-beam, and a central recess provided with longitudinal teeth, a carrier secured to a bottom of the cross-beam, projecting into the central recess of the cylindrical member, and carrying, at its end side, a tooth gear that functions as a planet gear that cooperates, on one hand, with a tooth gear secured at an end of the adjusting shaft which extends through the carrier, and serving as a sun gear, and, on another hand, with the longitudinal teeth of the central recess of the cylindrical member, and an adjusting pressure sleeve connected with the support sleeve for longitudinal displacement relative thereto but without a possibility of rotation relative thereto.

Auxiliary adjusting device for rolling mill stand

In a method for drying and keeping dry rolled strip in a delivery area of strip-rolling plants, a partition is arranged in the delivery area for separating a damp area of the rolling mill from a dry area. The partition extends from the base plate to the stand platform. The strip is subjected to pressurized gas by the ends of the partition facing the strip at a right angle to the strip surface from above and below. Across the strip width a cushion of a compressed gas is generated and seals a gap between the ends of the partition facing the strip and the upper and lower strip surfaces. The compressed gas is guided away above and below the strip parallel to the strip surface as a split flow toward the rolling mill or the damp area and as a split flow in the opposite direction toward the dry area.

Method and device for drying and keeping dry especially cold-rolled strip in the delivery area of cold-rolling and strip-rolling plants

A roll, particularly a back-up roll, for rolling flat material is composed of a rotating roll shell and a unit arranged within the roll shell for influencing the bending stiffness of the roll shell. The unit for influencing the bending stiffness of the roll shell is a friction bearing in the form of a body of rotation. The body of rotation can be adjusted by rotating the body. The body of rotation is shaped in such a way that the load application surface thereof corresponding to the zone of the roll shell to which load is applied is part of the circumferential surface of a rotation-symmetrical body and the edge of this circumferential surface is shaped in such a way that along the circumference of the body of rotation the width and/or position of the load application surface vary.

Growing community of inventors

Freudenberg, Germany

Wolfgang Denker