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:
Mar. 04, 1986
Filed:
Mar. 15, 1983
Minoru Kitamura, Nishinomiya, JP;
Kenta Yoshii, Kakogawa, JP;
Shozo Kawasaki, Kobe, JP;
Katsuyoshi Matsuo, Kakogawa, JP;
Mitsuo Tomonaga, Himeji, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
A method for electromagnetically stirring molten steel in continuous casting wherein in producing cast slabs or blooms, an electromagnetic stirring force is applied to the unsolidified molten steel in the cast slab or bloom being drawn. An electromagnetic stirrer is installed between drawing positions where the unsolidified thickness is 45% and 15%, respectively, of the thickness as viewed in the direction of the thickness of the cast slab or bloom, and stirring in the casting direction is applied to the unsolidified molten steel in such a manner that the product of the magnetic flux density (gauss) at the interface between the unsolidified and solidified portions and the stirring time in minutes (which is defined as the ratio of the stirring effective length (mm) of the electromagnetic stirrer to the casting speed (m/min)) is 1,600 gauss-min or more per m.sup.3 of the total volume (m.sup.3) of unsolidified molten steel present in a region extending to the drawing side from the position where the electromagnetic stirrer is located.