Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Primetals Technologies Germany Gmbh

Friedemann Schmid

Gerald Hohenbichler

Otto Gramckow

Marco Miele

Johannes Reinschke

Matthias Kurz

Hannes Schulze Horn

Johannes Dagner

Guenter Soergel

Christopher Gusek

Gunter Sorgel

Alexander Thekale

Martin Vogt

Peter Protzel

Robert Andrew Shore

Lars Kindermann

Werner Kuttner

Thomas Berger

Immo Domnig

Joachim Höhne

Kurt Hohendahl

Jens Frenzel

Andreas Jungbauer

Joachim H&ouml;hne

Prior to the rolling of a flat rolling material () on a rolling line that includes a number of roll stands (), a control system () receives actual variables (I) and target variables (Z) of the material (). The control system () determines desired values (S*) for the roll stands (), based on the actual (I) and target variables (Z) in combination with a model () of the rolling line, such that expected variables (E) of the material () after its rolling are aligned as far as possible with the target variables (Z) and transfers the desired values (S*) to the roll stands () such that the material () is rolled according to the desired values (S*). The target variables (Z) comprise at least one freely selectable, discrete characteristic variable (Kto K, K' to K&#x2032;, K&#x2033; to K&#x2033;) defining the contour (K) of the flat rolling material ().

Targeted adjusting of the contour using corresponding specifications

Input variables, which describe a metal strip prior to and after the passage of a rolling stand, are fed to a material flow model. The material flow model determines online a rolling force progression in the direction of the width of the strip and fees said progression to a roller deformation model. The latter determines roller deformations from said progression and feeds them to a desired value calculator, which calculates the desired values for the controlling elements of profile and surface evenness using the calculated roller deformations and a contour progression on the runout side.

Computer-aided method for determining desired values for controlling elements of profile and surface evenness

Method and apparatus for presetting process variables in at least one actuating element of a rolling train for rolling metal strips, in which guarantee values are predefined. The guarantee values specified, which cover the intended stipulations and the associated tolerance bands for the quality features of the metal strip, are, for example, strip flatness and/or strip contour and/or strip profile. The tolerance bands of the intended stipulations over a predefinable number of metal strips are taken into account in such a way that an optimum set point calculation of at least one process variable is carried out over the predefined number of metal strips.

Method and apparatus for presetting process variables for a rolling train for rolling metal strips

Method for determining an intermediary profile of a metal strip between an upstream and a downstream roll stand in a mill train having at least two roll stands is described intermediary profile (p ) and the final profile (p ) of the metal strip downstream from the downstream roll stand are determined using an analytical model with parameters. The final profile is determined using a final profile model. At least one parameter is modified so that the difference between the final profile, determined using an analytical model, and the final profile, determined using the final profile model, is reduced.

Method and device for determining an intermediary profile of a metal strip

Continuous casting and rolling system including control system

Process and device for influencing the profile of a rolled strip in a roll stand by affecting the camber of the rolls, i.e., the surface geometry of the rolls in the longitudinal direction of the rolls. The camber of the rolls is affected by influencing the temperature profile of the rolls or their surface in the longitudinal direction of the rolls. In one embodiment, the temperature profile of the surfaces of the rolls is controlled by cooling the surfaces of the rolls.

Process and device for influencing a profile of a rolled strip

Regulation system in the manufacture of hot rolled strips by means of a

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Erlangen, Germany

Friedemann Schmid