logo

For the Inventor, By the Inventor

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 10023932 B1

PDFFull Text
Date of Patent:
Jul. 17, 2018

Filed:

Dec. 26, 2013

Grain-oriented electrical steel sheet, and method for manufacturing the same

Applicant:

Posco, Pohang-si, Gyeongsangbuk-do, KR;

Inventors:

Min Soo Han, Pohang-si, KR;

Min Serk Kwon, Pohang-si, KR;

Soon-Bok Park, Pohang-si, KR;

Chan-Hee Han, Pohang-si, KR;

Assignee:

POSCO, Pohang-si, Gyeongsangbuk-do, KR;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Kiley Stoner

Int. Cl.
CPC ...
H01F 1/04 (2006.01); C21D 9/46 (2006.01); C21D 8/12 (2006.01); C21D 9/56 (2006.01); C23C 8/02 (2006.01); C23C 8/26 (2006.01); C23C 8/80 (2006.01); C21D 3/04 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); C23F 11/02 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 3/04 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0257 (2013.01); C21D 8/0263 (2013.01); C21D 8/0273 (2013.01); C21D 8/12 (2013.01); C21D 8/1283 (2013.01); C21D 9/56 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/60 (2013.01); C23C 8/02 (2013.01); C23C 8/26 (2013.01); C23C 8/80 (2013.01); C23F 11/02 (2013.01); C21D 8/1255 (2013.01);
Abstract

An oriented electrical steel sheet and a method of manufacturing the same are provided, and in a method of manufacturing an oriented electrical steel sheet including processes of producing a hot rolled plate by hot rolling a steel slab, performing or omitting hot rolled plate annealing, performing cold rolling, performing decarburization and nitride annealing, and performing final high temperature annealing, the decarburization and nitride annealing process is performed in a dew point range of 35-55° C., and in the final annealing process, a glassless additive including MgO is applied.

Find Patent Forward Citations

Loading…