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:
Oct. 05, 2010
Filed:
Dec. 22, 2004
Joachim Kroos, Meine, DE;
Karl-heinz Spitzer, Clausthal-Zellerfeld, DE;
Georg Frommeyer, Erkrath, DE;
Volker Flaxa, Salzgitter, DE;
Udo Brüx, Meerbusch, DE;
Klaus Brockmeier, Duisburg, DE;
Joachim Kroos, Meine, DE;
Karl-Heinz Spitzer, Clausthal-Zellerfeld, DE;
Georg Frommeyer, Erkrath, DE;
Volker Flaxa, Salzgitter, DE;
Udo Brüx, Meerbusch, DE;
Klaus Brockmeier, Duisburg, DE;
Salzgitter Flachstahl GmbH, Salzgitter, DE;
Max-Planck-Institut Für Eisenforschung GmbH, Düsseldorf, DE;
Abstract
In a method for making hot strips, a workable lightweight construction steel is used which in particular can easily be deep-drawn cold and includes the main elements Si, Al and Mn, with high tensile strength and good TRIP and/or TWIP characteristics. The mass % are as follows for C 0.04 to <1.0, Al 0.05 to <4.0, SI 0.05 to ≦6.0; Mn 9.0 to ≦30.0, the remainder being iron with the common incidental steel elements. The melt is cast in a horizontal strip casting unit, close to the final dimensions at calm flow and without bending to form a pre-strip in the range between 6 and 15 mm, and subsequently is fed for further processing.