US2026070119A1PendingUtilityA1
Continuous casting tundish, method for continuously casting steel, and weir
Est. expirySep 9, 2042(~16.1 yrs left)· nominal 20-yr term from priority
B22D 41/00B22D 11/16B22D 11/001B22D 41/12B22D 11/10B22D 11/117B22D 1/005B22D 1/002B22D 11/118B22D 41/003
52
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Claims
Abstract
A continuous casting tundish including: a reservoir that stores supplied molten steel, wherein the reservoir comprises: one or more molten steel outlets that allow the molten steel to exit therethrough, and a weir having a hollow cylindrical shape located at an upstream side of the molten steel from the one or more molten steel outlets, the weir including: a bottom; a wall rising from the bottom; an eave provided at an end of the wall, the eave covering a periphery of the wall and facing the bottom; and a gas supply unit that supplies an inert gas to an interior space enclosed by the wall and the bottom.
Claims
exact text as granted — not AI-modified1 - 12 . (canceled)
13 . A continuous casting tundish comprising:
a reservoir that stores supplied molten steel, wherein the reservoir comprises:
one or more molten steel outlets that allow the molten steel to exit therethrough, and
a weir having a hollow cylindrical shape located at an upstream side of the molten steel from the one or more molten steel outlets, the weir comprising:
a bottom;
a wall rising from the bottom;
an eave provided at an end of the wall, the eave covering a periphery of the wall and facing the bottom; and
a gas supply unit that supplies an inert gas to an interior space enclosed by the wall and the bottom, the gas supply unit comprising:
a porous body that includes pores in an entirety of the porous body;
a support that supports the porous body, the support being provided on the wall; and
a pipe that allows the inert gas to be delivered therethrough, the pipe being provided in the wall between the support and the bottom.
14 . The continuous casting tundish according to claim 13 , wherein
the weir further comprises a reception chamber that is enclosed by the porous body, the support, the wall, and the bottom, and the pipe is provided in the wall.
15 . The continuous casting tundish according to claim 13 , wherein the gas supply unit further comprises an adjustment valve that adjusts a flow rate of the inert gas that is supplied from the pipe.
16 . The continuous casting tundish according to claim 14 , wherein the gas supply unit further comprises an adjustment valve that adjusts a flow rate of the inert gas that is supplied from the pipe.
17 . The continuous casting tundish according to claim 13 , wherein the pipe is disposed along a reservoir wall of the reservoir and covered with a covering material that is refractory.
18 . The continuous casting tundish according to claim 14 , wherein the pipe is disposed along a reservoir wall of the reservoir and covered with a covering material that is refractory.
19 . The continuous casting tundish according to claim 15 , wherein the pipe is disposed along a reservoir wall of the reservoir and covered with a covering material that is refractory.
20 . The continuous casting tundish according to claim 16 , wherein the pipe is disposed along a reservoir wall of the reservoir and covered with a covering material that is refractory.
21 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 13 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
22 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 14 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
23 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 15 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
24 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 16 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
25 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 17 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
26 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 18 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
27 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 19 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
28 . A method for continuously casting steel comprising:
utilizing the continuous casting tundish according to claim 20 ; and injecting the inert gas at a flow rate that satisfies inequality (1), shown below:
0.
0
2
≤
R
≤
1.
(
1
)
where R is the flow rate [NL/(s×m 2 )] of the inert gas per unit area of the porous body.
29 . A weir that is configured to be provided in a continuous casting tundish and the weir having a hollow cylindrical shape, the weir comprising:
a bottom; a wall rising from the bottom; an eave provided at an end of the wall, the eave covering a periphery of the wall and facing the bottom; and a gas supply unit that supplies an inert gas to an interior space enclosed by the wall and the bottom, the gas supply unit comprising:
a porous body that includes pores in an entirety of the porous body;
a support that supports the porous body, the support being provided on the wall; and
a pipe that allows the inert gas to be delivered therethrough, the pipe being provided in the wall between the support and the bottom.
30 . The weir according to claim 29 , further comprising:
a reception chamber that is enclosed by the porous body, the support, the wall, and the bottom, wherein the pipe is provided in the wall.
31 . The weir according to claim 29 , wherein the gas supply unit further comprises an adjustment valve that adjusts a flow rate of the inert gas that is supplied from the pipe.
32 . The weir according to claim 30 , wherein the gas supply unit further comprises an adjustment valve that adjusts a flow rate of the inert gas that is supplied from the pipe.Join the waitlist — get patent alerts
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