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:
Aug. 02, 2022
Filed:
Jun. 07, 2019
Nippon Steel Corporation, Tokyo, JP;
Hiroshi Harada, Tokyo, JP;
Kanoko Yamamoto, Tokyo, JP;
Takuya Takayama, Tokyo, JP;
Keita Ikeda, Tokyo, JP;
Yui Ito, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A continuous casting facility used for thin slab casting has a mold for casting molten steel, an immersion nozzle that supplies the molten steel into the mold, and an electromagnetic stirring device capable of providing a swirl flow at a molten steel surface in the mold, and a thickness D(mm) of a copper plate of a long side wall, a thickness T (mm) of a steel piece, a frequency f (Hz) of the electromagnetic stirring device, electric conductivity σ (S/m) of the molten steel, and electric conductivity σ(S/m) of the copper plate of the long side wall are adjusted to satisfy the following formulae (1)-a and (1)-b:<√(2/σωμ)  (1)-a√(1/2σωμ)<  (1)-b,