Title:
TUNDISH FOR CONTINUOUS CASTING, CONTINUOUS CASTING METHOD FOR STEEL, AND WEIR
Document Type and Number:
WIPO Patent Application WO/2024/053290
Kind Code:
A1
Abstract:
Provided is a tundish for continuous casting that enables the purity of molten steel to be increased. This tundish for continuous casting comprises an accommodation section that retains molten steel that has been supplied. The accommodation section comprises: one or more molten steel outflow ports out of which the molten steel is allowed to flow; and a weir that is disposed more to the upstream side of the molten steel than the one or more molten steel outflow ports and that is formed in a hollow cylindrical shape. The weir includes: a base section; a wall section erected from the base section; an eave section disposed so as to cover the peripheral ridge at one end of the wall section and to oppose the base section of the weir; and a gas supply section that supplies an inert gas into an internal space surrounded by the wall section and the base section. The gas supply section includes: a porous section, in the entirety of which a plurality of pores are formed; a support section that supports the porous section and is disposed in the wall section of the weir; and piping that is disposed in the wall section of the weir, between the support section and the base section of the weir, and that discharges the inert gas.
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Inventors:
FURUMAI KOHEI (JP)
ARAMAKI NORICHIKA (JP)
ARAMAKI NORICHIKA (JP)
Application Number:
PCT/JP2023/028182
Publication Date:
March 14, 2024
Filing Date:
August 01, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B22D11/10; B22D11/11
Domestic Patent References:
| WO2013190799A1 | 2013-12-27 |
Foreign References:
| US20210053111A1 | 2021-02-25 | |||
| JPH09164455A | 1997-06-24 | |||
| CN203109191U | 2013-08-07 | |||
| CN113564309A | 2021-10-29 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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