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:
Jun. 22, 1999
Filed:
Dec. 11, 1997
Applicant:
Inventors:
Assignees:
Pohang Iron & Steel Co., Ltd., Pohang, KR;
Research Institute of Industrial Science & Technology, Pohang, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
148111 ; 148112 ; 164459 ; 164476 ; 164477 ;
Abstract
A method for manufacturing a soft magnetic steel sheet is disclosed. The silicon steel sheet is made to undergo a finish treatment so that it can be put to the practical use. The finish treatment method for an Fe-Si silicon steel sheet manufactured by a direct casting method by directly contacting a molten pool to a cooling roll according to the present invention includes the step of pickling the manufactured Fe-Si silicon steel sheet, and carrying out a cold rolling. Then the silicon steel sheet thus cold-rolled is heat-treated at a temperature above 0.5 Tm (Tm: melting temperature of the steel sheet).