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Title:
MOLTEN STEEL FEEDER FOR CONTINUOUS CASTING, AND METHOD FOR CONTINUOUS CASTING USING THE MOLTEN STEEL FEEDER
Document Type and Number:
WIPO Patent Application WO/2002/051570
Kind Code:
A1
Abstract:
A molten steel feeder for continuous casting and a method for continuous casting using the molten steel feeder; the molten steel feeder, comprising a tundish (1) having an upper nozzle (2) installed at the bottom part thereof, a flow control mechanism (3) installed at the lower part of the upper nozzle (2), an immersed nozzle (4) formed of a refractory having an electric conductivity, one electrode (5) facing the internal space of the tundish (1), the other electrode (6) installed in the immersed nozzle (4), and a power supply part (7) connected to both electrodes (5) and (6); the method for continuous casting, comprising the step of, by using the molten steel feeder, feeding molten steel to a mold while feeding an electric power between the internal surface of the immersed nozzle (4) and the molten steel (8) passing the inside of the nozzle, whereby the oxide of Al in the molten steel can be prevented from adhering to the internal surface of the immersed nozzle, and thus a product defect can be prevented from occurring.

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Inventors:
KATO TORU (JP)
NISHIDA NORIHIRO (JP)
HARA MASASHI (JP)
KAWAMOTO MASAYUKI (JP)
MURAKAMI TOSHIHIKO (JP)
Application Number:
PCT/JP2001/011409
Publication Date:
July 04, 2002
Filing Date:
December 25, 2001
Export Citation:
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Assignee:
SUMITOMO METAL IND (JP)
KATO TORU (JP)
NISHIDA NORIHIRO (JP)
HARA MASASHI (JP)
KAWAMOTO MASAYUKI (JP)
MURAKAMI TOSHIHIKO (JP)
International Classes:
B22D11/10; B22D41/50; B22D41/60; (IPC1-7): B22D11/10
Foreign References:
JPS5618168U1981-02-17
JPH04319055A1992-11-10
JPH06182513A1994-07-05
JPH04322870A1992-11-12
JPS5159022A1976-05-22
Other References:
See also references of EP 1348503A4
Attorney, Agent or Firm:
Mori, Michio (Higashinaniwa-cho 5-chome Amagasaki-shi, Hyogo, JP)
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