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Title:
DIFFERENTIAL PRESSURE TYPE LADLE AND ITS MOLTEN METAL DISCHARGING METHOD
Document Type and Number:
Japanese Patent JP2003211265
Kind Code:
A
Abstract:

To smoothly perform shifting of molten metal by dipping the tip end part of a pipe for shifting the molten metal into a molten metal vessel being a shift destination and preventing the development of an unintended siphon phenomenon.

The shift of molten metal is started by dipping the tip end part of a pipe 5 for shifting the molten metal into the surface of a molten metal 18 being the shift destination in the storing vessel 3 of the shift destination. When the pressurization in a molten metal ladle 2 is stopped after reaching an optional shifting amount of the molten metal, the siphon phenomenon caused by a head difference (the difference of the heights of the molten metal surfaces) between the molten metal 4 in the molten metal ladle 2 and the molten metal 18 of the shift destination in the storing vessel 3 of the shift destination is stopped by supplying air into the pipe 5 for shifting the molten metal through a porous refractory serving as a lining of this pipe 5 from an opening part 8 arranged at the pipe wall of the pipe 5. The spouting of the molten metal from the opening part 8 is prevented by supplying air into the pipe 5 through the porous refractory.


Inventors:
Inoue, Yuji
Hayakawa, Fumitoshi
Kato, Yoshietsu
Shiroi, Kazuyuki
Application Number:
JP2002000012892
Publication Date:
July 29, 2003
Filing Date:
January 22, 2002
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
NICHIAS CORP
International Classes:
B22D35/00; B22D45/00; F27D3/14; (IPC1-7): B22D35/00; B22D45/00; F27D3/14
Attorney, Agent or Firm:
萼 経夫 (外3名)