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:
Jul. 03, 2012
Filed:
Dec. 03, 2007
Takehiko Toh, Tokyo, JP;
Masahiro Tani, Tokyo, JP;
Kazuhisa Tanaka, Tokyo, JP;
Shinichi Fukunaga, Tokyo, JP;
Takehiko Toh, Tokyo, JP;
Masahiro Tani, Tokyo, JP;
Kazuhisa Tanaka, Tokyo, JP;
Shinichi Fukunaga, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A continuous casting method of molten metal using electromagnetic force to improve the cast slab surface properties and reduce the nonmetallic inclusions and bubbles trapped inside the cast slab is provided. An alternating current is run through an electromagnetic coil arranged around a casting mold so as to surround a casting space to control the meniscus shape to improve the cast slab surface properties. The discharge ports of a submerged entry nozzle are oriented upward and the direction of the discharge flow from the discharge ports is above the intersection of the casting mold short side and meniscus.