Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2002-10-23
2010-02-09
Sheehan, John P. (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C148S111000, C148S120000, C148S306000, C148S307000
Reexamination Certificate
active
07658807
ABSTRACT:
The present invention relates to a hot-rolled steel strip for further processing to form non-grain oriented electrical sheet with the following composition (in % by weight) C: <0.02%, Mn: ≦1.2%, Si: 0.1-4.4%, Al 0.1-4.4%, wherein the sum formed from the Si content and twice the Al content is <5%, P: <0.15%, Sn: ≦0.20%, Sb: ≦0.20%, the remainder iron and unavoidable impurities, with a strip thickness which is at most 1.8 mm, and with a partially softened structure which is characterised by a high intensity for the α fibre (fibre representation of orientation distribution functions) in the region of 0° to 60°, wherein the ratio I112/I001formed from the intensity I112of the position (112) <110> to the intensity I001of the position (001) <110> is >0.4 and the ratio I111/I001formed from the intensity I111of the position (111) <110> to the intensity I001of the position (001) <110> is >0.2.
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English language translation of Friedrich et al. (Friedrich '691, German Document No. 100 15 691 C1, cited in the IDS submitted Apr. 24, 2004).
Hendricks C. et al.: “Commissioning and First Results of the Casting Rolling Plant of Thyssen Krupp Stahl AG”, Feb. 15, 2000, pp. 61-68, Stahl Und Eisen, Verlag Stahleisen GmbH, Düsseldorf, DE.
Friedrich Karl Ernst
Kawalla Rudolf
Rasim Wolfgang
Schneider Joergen
Wuppermann Carl-Dieter
Proskauer Rose LLP
Sheehan John P.
ThyssenKrupp Steel AG
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