Computer-aided method for determining desired values for controlling elements of profile and surface evenness
AssigneeSiemens Aktiengesellschaft
InventorsJohannes Reinschke, Friedemann Schmid, Marco Miele
Life of this patent
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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.
Claims24
A computer-aided method for determining desired values for controlling elements of profile and surface evenness of a rolling stand having work rollers for rolling metal strip that extends in a direction of the strip width, the method comprising:
- feeding input variables that describe the metal strip before and after passing through the rolling stand, to a material flow model;
- determining at least one rolling force progression in the direction of the strip width by the material flow model;
- feeding the at least one rolling force progression to a rolling deformation model;
- determining rolling deformations using the rolling force progression by the rolling deformation model;
- feeding the rolling deformations to a desired value calculator;
- and
- determining the desired values for the controlling elements of profile and surface evenness using the determined rolling deformations and a runout contour progression by the desired value calculator.
A rolling train, comprising:
- a rolling stand;
- and
- a control computer adapted for performing a method for determining desired values for controlling elements of profile and surface evenness of a rolling stand having work rollers for rolling metal strip that extends in a direction of the strip width, the method comprising:
- feeding input variables that describe the metal strip before and after passing through the rolling stand, to a material flow model;
- determining at least one rolling force progression in the direction of the strip width by the material flow model;
- feeding the at least one rolling force progression to a rolling deformation model;
- determining rolling deformations using the rolling force progression by the rolling deformation model;
- feeding the rolling deformations to a desired value calculator;
- and
- determining the desired values for the controlling elements of profile and surface evenness using the determined rolling deformations and a runout contour progression by the desired value calculator.
Dependencies are inferred from the claim text.