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:
Aug. 24, 2021
Filed:
Oct. 12, 2016
Applicant:
Voestalpine Krems Gmbh, Krems, AT;
Inventors:
Alfred Seyr, Statzendorf, AT;
Christian Rouet, Gedersdorf, AT;
Assignee:
VOESTALPINE KREMS GMBH, Krems, AT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 9/00 (2006.01); B21D 5/00 (2006.01); B21D 5/08 (2006.01); C21D 7/13 (2006.01); C21D 8/02 (2006.01); C21D 9/52 (2006.01); C21D 8/00 (2006.01); B32B 15/01 (2006.01);
U.S. Cl.
CPC ...
C21D 9/0068 (2013.01); B21D 5/008 (2013.01); B21D 5/08 (2013.01); C21D 7/13 (2013.01); C21D 8/00 (2013.01); C21D 8/0226 (2013.01); C21D 9/52 (2013.01); B32B 15/013 (2013.01); C21D 8/005 (2013.01); C21D 2211/001 (2013.01); C21D 2221/00 (2013.01);
Abstract
The invention relates to a method for continuously roller-forming and hardening sheet steel in which a sheet steel strip is continuously roller-formed into a profile in a roller-profiling unit, characterized in that the roller-formed profile strand is preheated to a temperature below the austenite starting temperature (Ac) and the roller-formed profile strand is then heated across subregions of its cross-section and/or subregions of its length to a temperature above AC, with the roller-formed profile strand being acted on with tension at least during the heating of subregions to a temperature >AC.