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:
Jan. 07, 2003
Filed:
Nov. 07, 2000
Hans Pircher, Mülheim/Ruhr, DE;
Rudolf Kawalla, Niederbobritzsch, DE;
Manfred Espenhahn, Essen, DE;
Brigitte Hammer, Voerde, DE;
Klaus Peters, Velbert, DE;
Jürgen Schneider, Bochum, DE;
Carl-Dieter Wuppermann, Krefeld, DE;
Thyssen Krupp Stahl AG, Dusseldorf, DE;
Abstract
The invention relates to a method to produce non-grain-oriented magnetic steel sheet made of thin-slab or slab casting with low specific total loss and high polarisation and favourable mechanical properties. It is a characteristic of the invention that the steel slabs are hot rolled either directly from the casting heat or after a reheating to T≧900 ° C. and two or more metal forming passes are performed in the two-phase region austenite/ferrite in the course of finishing rolling.