Sms Schloemann-Siemag Aktiengesellschaft

Sms Demag Ag

Sms Group Gmbh

Sms Siemag Aktiengesellschaft

Hans-Georg Hartung

Jochen Munker

Hans-Peter Richter

Wolfgang Roloff

Karl Keller

Holger Behrens

Meinert Meyer

Walter Trakowski

Rolf Brisberger

Michael Zielenbach

Lutz Kümmel

Friedrich Wilhelm Hollmann

Peter De Kock

Klaus Frommann

Paul-Josef Mauk

Alexandre Lhoest

Andreas Gramer

Ulrich Sommers

Ralf-Hartmut Sohl

R&uuml;diger Grimmel

Rolf Stodt

Bodo Falkenhahn

Bernhard Tenckhoff

Pascal Fontaine

Karl-Heinz Balve

Matthias Kretschmer

Klaus Hoffmann

Georg Kleinefeldt

Rüdiger Zerbe

Matthias Baerwald

Heinz-Jurgen Oudehinken

Matthias BÄRWALD

Jan Christoph Häusler

Fritz Luckmann

The invention relates to a device for controlling and/or regulating an annealing or heat treatment furnace () of a production line () processing metal material, which comprises the annealing or heat treatment furnace () and at least one measuring instrument (), which detects at least one material property of a strip material () located in the production line (), wherein the annealing or heat treatment furnace () and the at least one measuring instrument () interact in a regulating and/or control circuit of an automated process control, which regulates and/or controls the annealing or heat treatment furnace () in connection with a furnace control, wherein according to the invention, a solution is created wherein an improvement of the process control over the previously known prior art can be achieved. This is achieved in that the at least one measuring instrument () is arranged behind the annealing or heat treatment furnace () in the strap material processing direction () and detects online a measured value reproducing and/or depicting a mechanical material property of the strap material () and transmits said measured value to a regulating and/or control unit () as a data transfer signal.

Device and method for controlling and/or regulating an annealing or heat treatment furnace of a production line processing metal material

The invention relates to a roll stand comprising at least one roll () having a rotation axis (a), said roll being supported in two installed parts () disposed in the axial end regions of the roll () and each having a center plane (M), wherein the roll () can be positioned in the direction perpendicular to the transport direction (F) of the product to be rolled by means of at least one positioning element (). In order to be able to introduce a bending moment acting counter to the roll bending moment into the roller in a simple manner and without additional elements, according to the invention, each installed part () is connected to a bending lever () and the positioning element () is disposed such that the positioning force thereof is introduced into the bending lever () at a location (G) removed from the center plane (M) of the installed part (), and thereby into the installed part ().

Roll stand

The invention relates to a method for straightening a metal strip () which is guided in the direction of transportation (R) through a straightening machine () and is straightened. In the straightening device (), the metal strip () is impinged upon by a straightening force (F) which is applied by a plurality of straightening rollers () in the direction (N) which is perpendicular to the surface of the metal strip (). According to the invention, prior to the metal strip () entering into the straightening machine (), the thickness (d) of the metal strip () is determined and the position (a) of the straightening rollers () in the direction (N) which is perpendicular to the surface of the metal strip () is taken into account according to the determined thickness (d).

Method for straightening a metal strip and straightening machine

The invention relates to a device for hot dip coating a metal bar (), especially a steel strip, in which the metal bar () is directed vertically through a container () accommodating the molten coating metal () and through a guide channel () mounted upstream thereof. The inventive device comprises at least two inductors () which are arranged on both sides of the metal bar () in the area of the guide channel () and generate an electromagnetic field for retaining the coating metal () inside the container (). In order to relax the coating bath, the distance (d) between the walls () that delimit the guide channel () is not kept constant in a direction (N) extending perpendicular to the surface of the metal strip () in the zone (H) of the vertical extension of the guide channel (), which is located between the bottom side () thereof and the bottom area () of the container ().

Device for hot dip coating a metal strip

The invention relates to a device for coating metal bars (), particularly steel strips, by hot dipping. At least some sections of the metal bar () are vertically guided through a container receiving the molten coating metal (), said metal bar () being guided by at least one roller () which runs on bearings. In order to increase the service life of the roller bearings, the roller, or at least the axis () thereof, penetrates the side walls () of the container () and is mounted outside the container ().

Device for coating metal bars by hot dipping

A method and an apparatus for minimizing the coil height of wire coils formed in a coil forming chamber, wherein individual wire windings are conveyed on a horizontal conveyor, the wire windings are allowed to drop at the end of the conveyor in an approximately vertically dropping movement, and the wire windings drop into the coil forming chamber so as to form the coil. The method includes the steps of placing the wire windings N from their drop line eccentrically relative to the axis of symmetry of the coil forming chamber, and adjusting an angle offset &Dgr;&phgr; between two successive windings in accordance with the number of wire windings which are placed per 360&deg; in the coil forming chamber, wherein the adjustment is constant or variable, and wherein &Dgr;&phgr;&equals;360&deg;/N .

Method and apparatus for minimizing the coil height of wire in a coil forming chamber

A roll stand arrangement for rolling wire with a finishing block arranged following the last stand of the intermediate group of a wire rolling mill and composed of fixedly connected roll stands with grooved rolls, and a skin pass block arranged following and having the same configuration as the finishing block, wherein the roll stands of the skin pass block have an oval/oval groove sequence and a subsequent round groove sequence. The sequence of grooves in the roll stands of the skin pass block is composed of two, three, four or more oval/oval successive grooves and, directly following these oval/oval successive grooves, one or two round successive grooves.

Roll stand arrangement for rolling wire

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.

Method of cooling sectional girders

A roll stand with work rolls supported by a back-up roll either directly or through an intermediate roll, particularly work rolls which are axially displaceable in opposite directions, wherein at least one of the rolls of the roll stand is constructed with varying resilience over the length thereof, particularly with a greater flattening behavior in at least a portion thereof. For this purpose, at least one of the rolls has in the area between the roll neck and the outer surface of the roll at least one notch extending concentrically about the axis.

Roll stand for strip rolling

A continuously cast strand is cut into elongated billets having ends and the billets are run through a rolling stand. after cutting the strand into billets and before rolling the billets one of the billets is engaged in the rolling stand and a trailing end of the one billet and a leading end of another billet are enclosed in a mold with the ends longitudinally spaced. This space between the ends is filled with molten metal in contact with the ends of the billets and the molten metal is hardened to interconnect the billet ends. Then the mold is removed from around the billet ends. The molten metal is of substantially the same composition as the billets. Furthermore the one billet is advanced in a travel direction by means of the stand and the mold and the other billet are advanced synchronously with the one billet after enclosing the billet ends in the mold. The mold is removed from the billet ends before the hardened metal between the billet ends enters the rolling stand.

Method and apparatus for connecting billets

A method of coiling or placing bar steel or wire in coils, wherein the rolling stock is reeled from rolling heat in a basket or is placed by a coiler in the form of coils onto a conveyor and is collected at the end of the conveyor over a mandrel into a coil, wherein the rolling stock is cooled during coiling and the rolling stock is further cooled after the coiling process or the formation of coils. Cooling of the rolling stock from rolling heat prior to coiling into the transformation range characterized by the Ar.sub.3 line or Ar.sub.1 line of the transformation time-temperature diagram corresponding to the type of steel to be cooled is extended, such that, depending on the type of steel, the rolling stock is transformed immediately after cooling prior to, during or after coiling, uniformly over the entire length and entire cross-section thereof essentially isothermally from the austenite phase into the ferrite phase or pearlite phase and, as required, into the bainite phase.

Ferritic coiling of wire or bar steel

A method and an apparatus for an anticipatory thickness control in foil rolling by using characteristic lines stored in a process control computer of the individual manipulated variables (for example, strip tensions, rolling speeds) for various operating points (conditions of operation) or by using an on-line operating physical computing model, also in combination with a monitor control. The method includes the steps of determining the thickness deviations of the foil at the entry side of the roll stand and of compensating the thickness deviations by an anticipatory thickness control. The apparatus includes a thickness measuring device between the running-off reel and the rolling mill or the roll gap of the roll stand. The thickness measuring device is connected to a superordinated process control computer. Following the thickness measuring device is arranged a tensioning unit which serves to change the travel path of the foil strip between the running-off reel and the roll gap. For example, the tensioning unit elongates the travel path.

Method and apparatus for an anticipatory thickness control in foil

Growing community of inventors

Pulheim, Germany

Hans-Georg Hartung