US20060118268A1 - Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device - Google Patents

Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device Download PDF

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Publication number
US20060118268A1
US20060118268A1 US10/538,187 US53818705A US2006118268A1 US 20060118268 A1 US20060118268 A1 US 20060118268A1 US 53818705 A US53818705 A US 53818705A US 2006118268 A1 US2006118268 A1 US 2006118268A1
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US
United States
Prior art keywords
casting
refractory
orifice
nozzle
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/538,187
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English (en)
Inventor
Mariano Collura
Vincent Boisdequin
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Individual
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Individual
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Filing date
Publication date
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Publication of US20060118268A1 publication Critical patent/US20060118268A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to a refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device.
  • the casting of a melt is generally carried out with an installation comprising several refractory elements forming a casting channel between two consecutive metallurgical containers. These elements fulfill different functions which are the transfer of the melt, the protection of the melt against cooling and the chemical attacks of the surrounding atmosphere and, optionally, the control of the melt casting flow.
  • the melt contained in a casting ladle is poured through a discharge orifice arranged in the bottom wall of the ladle and prolonged by a nozzle extending through the bottom wall.
  • a device for the flow-control of the liquid metal stream Under the bottom wall, there is generally a device for the flow-control of the liquid metal stream, the device being constituted from refractory plates provided each with a casting orifice which can be aligned or shifted one with respect to the other by the relative displacement of the plates so as to modify the cross-sectional flow area defined by the superposition of the pouring orifices.
  • the melt exits from the flow-control device into a nozzle, having generally a small length and called collector nozzle.
  • collector nozzle having generally a small length and called collector nozzle.
  • a casting tube intended for shrouding the stream discharged from the collector nozzle during its way to a tundish is provided. Conventionally, this shroud is fitted on the downstream end of the collector nozzle.
  • the metal poured through the shrouding tube into the tundish is then directed towards one or more pouring orifices arranged in the bottom wall of the tundish.
  • This orifice is prolonged by a nozzle which can run directly into the ingot-mold.
  • the flow-control of the melt poured from the tundish is performed with a stopper system which can close the pouring orifice arranged in the bottom wall.
  • the nozzle can be formed of several adjacent elements, in particular, an inner nozzle ending upstreamly with the pouring orifice arranged in the bottom wall and downstreamly with an end formed as a plane surface and a subentry nozzle ending upstreamly with a plane surface matching the plane surface of the inner nozzle.
  • Such an installation allows the replacement with an appropriate device (such as described for example in the patent EP-A1-192,019) of the subentry nozzle without having to interrupt the casting.
  • the flow-control of the melt poured from the tundish Is performed with a stopper system which can close the pouring orifice arranged in the bottom wall.
  • a flow-control device with plates working according to the same principle as the flow-control device above described in the context of the casting ladle is inserted between the inner nozzle and the subentry nozzle is also known.
  • the patent EP-B1-441,927 discloses such a kind of installation.
  • the present invention relates more particularly to an installation comprising a device for the insertion and/or removal of a nozzle for a casting Installation combined with a sliding plate flow-control device.
  • the lower plate of the sliding plates flow-control device is also the stationary plate of the device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device against which the nozzle is brought from an insertion position towards a casting position by the device for the insertion and/or removal.
  • the plate is not enough supported into its housing, the plate is indeed not homogeneously supported.
  • the pressure is not uniformly distributed around the pouring orifice of the plate and an incident called “finning” consisting in the formation of a thin strip of frozen metal between the stationary plate and the mobile plate, can take place. If this incident occurs repeatedly, the frozen metal strip acts as a wedge and push apart the two plates. It can even end with an infiltration of molten metal which cause the immediate termination of the casting operations.
  • the guiding surface is not sufficient to permit a correct guiding of the nozzle from the introduction position towards the casting position, the risk to have this casting nozzle in an incorrect position is important with all the adverse consequences that one can imagine.
  • the refractory plates have as low as possible dimensions, in, in particular as to its thickness.
  • the casting channel extending through the lower pate of the sliding plate flow-control device is subjected to a very strong erosion due to the turbulent and asymmetrical molten metal stream passing through it.
  • the inventors have thus seek to solve these problems and have come to the idea of providing the plate in question with a protuberance. Even so, its shape still had to be optimized so as to solve the above mentioned problems.
  • FIGS. 1 and 1 a top views of two different refractory plates according to the invention have been depicted on FIGS. 1 and 1 a .
  • FIGS. 2 and 2 a show to cross-sectional views according to the line A-A respectively of FIGS. 1 and 1 a .
  • FIG. 3 shows a cross-sectional view according to the line B-B of FIG. 1 .
  • FIGS. 4 and 4 a show perspective views from the lower face of the plates respectively of FIGS. 1 and 1 a.
  • the refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device comprises the following elements:
  • the preferred shape for the protuberance is a tip shape, the tip ( 8 ) being directed towards the introduction position of the refractory tube.
  • the initial efforts required to move the tube from its introduction position are quite low and increase progressively as the tube moves closer to its casting position.
  • this particular shape allows an adjustment of the tube during its progression in the device.
  • Particularly suitable shape are the oval, triangle, or egg shapes.
  • the egg shape (see on the FIGS. 1, 1 a , 4 and 4 a ) permitting to avoid sharp angles and maximizing the above described effect is particularly preferred.
  • this can be a collector nozzle which would be parked in a waiting position on the other side of the device.
  • the plate according to the invention can or not be provided with a metallic envelope.
  • an inert gas shrouding channel circumscribing the orifice to protect.
  • an inert gas line ( 9 ) feeding a circular groove ( 10 ) circumscribing the exit orifice ( 7 ) in the third surface ( 6 ) as depicted on the FIGS. 1 to 4 .
  • a groove similar of or any other kind can be present around the orifice ( 2 ).
  • a second passage ( 12 ) extending through the plate from an orifice ( 11 ) of the third surface ( 6 ) towards an orifice ( 13 ) of the first surface ( 1 ) is provided.
  • this second passage ( 12 ) will have smaller dimension than the casting channel ( 3 ) and will be localized far from the casting channel ( 3 ), for example close to the end of the tip ( 8 ).
  • This embodiment is depicted on FIGS. 1 a , 2 a and 4 a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Mold Materials And Core Materials (AREA)
US10/538,187 2002-12-10 2003-12-08 Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device Abandoned US20060118268A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02447251 2002-12-10
EP02447251.6 2002-12-10
PCT/BE2003/000211 WO2004052575A1 (en) 2002-12-10 2003-12-08 Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device

Publications (1)

Publication Number Publication Date
US20060118268A1 true US20060118268A1 (en) 2006-06-08

Family

ID=32479870

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/538,187 Abandoned US20060118268A1 (en) 2002-12-10 2003-12-08 Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device

Country Status (14)

Country Link
US (1) US20060118268A1 (ru)
EP (1) EP1572400A1 (ru)
JP (1) JP2006508804A (ru)
KR (1) KR20050113171A (ru)
CN (1) CN1747803A (ru)
AR (1) AR042352A1 (ru)
AU (1) AU2003285227A1 (ru)
BR (1) BR0316856A (ru)
CA (1) CA2507989A1 (ru)
MX (1) MXPA05006149A (ru)
PL (1) PL377469A1 (ru)
RU (1) RU2005117969A (ru)
WO (1) WO2004052575A1 (ru)
ZA (1) ZA200503917B (ru)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021165299A1 (en) 2020-02-18 2021-08-26 Vesuvius Group, S.A. Robotized ladle turret system
WO2021198305A1 (en) 2020-03-31 2021-10-07 Vesuvius Group, S.A. Robotized ladle transportation device system with embedded manipulator
US11389863B2 (en) 2018-02-22 2022-07-19 Hyundai Steel Company Collector nozzle for continuous casting
US11565311B2 (en) 2016-01-25 2023-01-31 Vesuvius Group, S.A. Sliding gate valve plate

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012166256A (ja) * 2011-02-16 2012-09-06 Kurosaki Harima Corp 下ノズル接合部構造とその下ノズル接合部構造におけるガスシール方法及びガスシールシステム並びに異常検知システム
CN110238376A (zh) * 2019-06-28 2019-09-17 维苏威高级陶瓷(中国)有限公司 一种中包滑板控流机构的下板结构及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179046A (en) * 1977-04-29 1979-12-18 Didier-Werke A.G. Refractory plate for slide closures of metallurgical vessels
US4669528A (en) * 1985-01-24 1987-06-02 International Industrial Engineering Sprl Device for introducing and exchanging a casting tube
US5074442A (en) * 1988-01-15 1991-12-24 Stoping Ag Refractory plate unit with annular centering surface and sliding closure unit assembly incorporating the same
US5170915A (en) * 1989-08-30 1992-12-15 International Industrial Engineering S.A. Sealable casting device for metallurgical container
US5695674A (en) * 1992-06-16 1997-12-09 International Industrial Engineering, S.A. Casting flow control device
US5958279A (en) * 1992-05-29 1999-09-28 Toshiba Ceramics Co., Ltd Refractory slide-gate plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179046A (en) * 1977-04-29 1979-12-18 Didier-Werke A.G. Refractory plate for slide closures of metallurgical vessels
US4669528A (en) * 1985-01-24 1987-06-02 International Industrial Engineering Sprl Device for introducing and exchanging a casting tube
US5074442A (en) * 1988-01-15 1991-12-24 Stoping Ag Refractory plate unit with annular centering surface and sliding closure unit assembly incorporating the same
US5170915A (en) * 1989-08-30 1992-12-15 International Industrial Engineering S.A. Sealable casting device for metallurgical container
US5958279A (en) * 1992-05-29 1999-09-28 Toshiba Ceramics Co., Ltd Refractory slide-gate plate
US5695674A (en) * 1992-06-16 1997-12-09 International Industrial Engineering, S.A. Casting flow control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11565311B2 (en) 2016-01-25 2023-01-31 Vesuvius Group, S.A. Sliding gate valve plate
US11389863B2 (en) 2018-02-22 2022-07-19 Hyundai Steel Company Collector nozzle for continuous casting
WO2021165299A1 (en) 2020-02-18 2021-08-26 Vesuvius Group, S.A. Robotized ladle turret system
US20230145288A1 (en) * 2020-02-18 2023-05-11 Vesuvius Group, S.A. Robotized ladle turret system
US11951541B2 (en) * 2020-02-18 2024-04-09 Vesuvius Group, S.A. Robotized ladle turret system
WO2021198305A1 (en) 2020-03-31 2021-10-07 Vesuvius Group, S.A. Robotized ladle transportation device system with embedded manipulator

Also Published As

Publication number Publication date
KR20050113171A (ko) 2005-12-01
AR042352A1 (es) 2005-06-15
EP1572400A1 (en) 2005-09-14
MXPA05006149A (es) 2005-08-26
JP2006508804A (ja) 2006-03-16
WO2004052575A1 (en) 2004-06-24
RU2005117969A (ru) 2006-01-20
BR0316856A (pt) 2005-10-25
AU2003285227A1 (en) 2004-06-30
CN1747803A (zh) 2006-03-15
PL377469A1 (pl) 2006-02-06
CA2507989A1 (en) 2004-06-24
ZA200503917B (en) 2006-08-30

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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION