The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2008
Filed:
Jan. 14, 2005
Peter Lixfeld, Hilchenbach, DE;
Ulrich Skoda-dopp, Duisburg, DE;
Harald Wehage, Ilsenburg, DE;
Wolfgang Grimm, Ilsenburg, DE;
Alexander Borowikow, Grüntal, DE;
Holger Blei, Berlin, DE;
Peter Lixfeld, Hilchenbach, DE;
Ulrich Skoda-Dopp, Duisburg, DE;
Harald Wehage, Ilsenburg, DE;
Wolfgang Grimm, Ilsenburg, DE;
Alexander Borowikow, Grüntal, DE;
Holger Blei, Berlin, DE;
SMS Demag AG, Düsseldorf, DE;
Abstract
The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel of nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (R) into account when calculating the set rolling force (F) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (k) and the set rolling force (F) at small degrees of deformation (f) or small reductions, during which the high temperature limit of elasticity (R) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (k) for determining the set rolling force (F) via the relation (2) R=a+e.phip, in which: Rrepresents the high temperature; phip represents the deformation speed, and; a, b, c represent coefficients.