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:
Apr. 03, 2007
Filed:
Dec. 17, 2001
Applicants:
Stefano Cicale′, Rome, IT;
Stefano Fortunati, Rome, IT;
Giuseppe Abbruzzese, Rome, IT;
Inventors:
Assignee:
Thyssenkrupp Acciai Speciali Terni S.p.A., Terni, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/147 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the production of electrical steel strips, in which a strip is directly cast from molten steel and contains alloy elements apt to generate a precipitation of sulphides and/or nitrides apt to inhibit the grain growth. The strip is hot rolled in-line with the casting operation at a temperature between 1250 and 1000° C., and in which the strip is coiled after hot rolling at a temperature of less than 780° C. if sulphides are utilized, or at a temperature of less than 600° C. if nitrides, or nitrides plus sulphides, are utilized.