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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.:

US 11492678 B1

PDFFull Text
Date of Patent:
Nov. 08, 2022

Filed:

May. 17, 2018

Non-oriented electrical steel sheet and method for preparing same

Applicant:

Posco, Pohang-si, KR;

Inventors:

Jae-Hoon Kim, Pohang-si, KR;

Yong-Soo Kim, Pohang-si, KR;

Jung-Woo Kim, Pohang-si, KR;

Su-Yong Shin, Pohang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Jenny R Wu

Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/34 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C22C 38/002 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/34 (2013.01);
Abstract

A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes, by weight %, Si: 2.5 to 6.0%, Al: 0.2 to 3.5%, Mn: 0.2 to 4.5%, Cr: 0.01 to 0.2%, P: 0.005 to 0.08%, Mg: 0.0005 to 0.05%, and a remainder including Fe and inevitable impurities, while satisfying Equation 1 below, and formed with an inner oxidation layer of a 0.2 to 5 μm thickness inside a base steel sheet.−2.5≤[P]/[Cr]−[Mg]×100≤6.5  [Equation 1](In Equation 1, [P], [Cr], and [Mg] respectively represent a content (by wt %) of P, Cr, and Mg).

Find Patent Forward Citations

Kim, Jae-Hoon. (2022). Non-oriented electrical steel sheet and method for preparing same (U.S. Patent No. 11492678). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11492678

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