Abstract: Prior to the rolling of a flat rolling material (2) on a rolling line that includes a number of roll stands (1), a control system (3) receives actual variables (I) and target variables (Z) of the material (2). The control system (3) determines desired values (S*) for the roll stands (1), based on the actual (I) and target variables (Z) in combination with a model (10) of the rolling line, such that expected variables (E1) of the material (2) after its rolling are aligned as far as possible with the target variables (Z) and transfers the desired values (S*) to the roll stands (1) such that the material (2) is rolled according to the desired values (S*). The target variables (Z) comprise at least one freely selectable, discrete characteristic variable (K1 to K5, K2? to K4?, K2? to K4?) defining the contour (K) of the flat rolling material (2).

Abstract: A rolling line for rolling a flat rolling material (2) includes a number of roll stands (1). Prior to the rolling, a control system (3) receives actual variables (I) of the material (2) before the rolling and target variables (Z) after the rolling. The control system (3) determines desired control variables (S*) for the roll stands (1), based on the actual (I) and target variables (Z), in combination with a description (B) of the rolling line, using a model (10) of the rolling line. The control system (3) determines the desired values (S*) such that expected variables (E1) for the material (2) after its rolling are aligned as far as possible with the target variables (Z). The control system (3) transfers the desired values (S*) to the roll stands (1) such that the material (2) is rolled according to the transferred desired values (S*).

Abstract: 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.

Abstract: Input variables, which describe a metal strip prior to and after the passage of a rolling frame, 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.

Abstract: 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.

Abstract: The invention relates to a foundry rolling unit, comprising a first production line, with at least one casting machine, the thin slabs of which may be introduced into at least one tunnel furnace, whereby said tunnel furnace opens out into at least one finishing train, with at least one mill stand. After leaving the finishing train the rolled hot strips may be introduced into at least one cooling run and may be rolled on at least one coiler. The foundry rolling unit furthermore comprises a second production line arranged in an at least partly parallel manner in terms of production, with at least one slab introducing device, through which the slabs may be introduced into at least one reheating oven and at least one cogging stand arranged thereafter.

Abstract: 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 (pout) and the final profile (pout) 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.

Abstract: 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.

Abstract: A continuous casting and rolling system for steel strips includes a vertically working two-roll casting device, a first device for adding molten steel to the casting device, a second device for guiding a cast strip produced by the casting device into a horizontal position, a horizontally working rolling mill for working the cast strip, and a reel device receiving the strip worked in the horizontally working rolling mill. Each of the casting device, the first device, the second device, the horizontally working rolling mill and the reel device are controlled by respective individual closed-loop control systems. The system also includes a central control system connected to the first device, the casting device, the second device, the rolling mill and the reel device for an integrated adjustment of the respective individual closed-loop control systems as a function of mathematical models.

Abstract: 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.

Abstract: The invention relates to control in the manufacture of hot strip by means of a multi-stand hot-strip rolling mill, especially a wide-strip rolling mill, which has a higher-order process control system with a sampling plan with the initial and final dimensions, with material data, rolling temperatures, etc., and a guidance system for setpoint control of lower-order decoupled individual regulators for the variable functional parameters of the individual roll stands, e.g. roll adjustment, rotational speed, torque, etc., with the setpoints of the individual regulators being determined by means of a computation process using model equations with convergent parameter adjustment to the actual parameters, in such fashion that a working point control that can be determined in advance is provided and section control and regulation are accomplished by changing the load distribution on the individual stands in such fashion that the working points lie in the previously determined tolerance range of a shape control line.