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. 29, 2003
Filed:
Aug. 13, 2002
Toru Kato, Kashima, JP;
Norihiro Nishida, Shimodate, JP;
Masashi Hara, Tonosho-machi, JP;
Masayuki Kawamoto, Wakayama, JP;
Toshihiko Murakami, Kashima, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
An apparatus for supplying molten steel and a continuous casting method therewith are described. The apparatus is equipped with a tundish having an upper nozzle at the bottom, a flow control mechanism disposed below the upper nozzle an immersion nozzle formed by a refractory material having a good electrical conductivity, one electrode disposed in the inner space of the tundish the other electrode disposed in the immersion nozzle and a power supply connected to the electrodes and In the method, the molten steel is supplied into a mold in the state of supplying an electric current between the inner surface of the immersion nozzle and the molten steel passing through the inside thereof by utilizing the apparatus for supplying molten steel. The deposition of the Al oxide or the like in the molten steel onto the inner surface of the immersion nozzle and others can be prevented, and thereby the generation of the surface defects in the products can also be prevented.