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WO2004052576A1 - Cadre metallique pour buse de coulee, ensemble de cadre metallique dote d'une buse de coulee et dispositif d'insertion et/ou de retrait d'une buse de coulee - Google Patents

Cadre metallique pour buse de coulee, ensemble de cadre metallique dote d'une buse de coulee et dispositif d'insertion et/ou de retrait d'une buse de coulee Download PDF

Info

Publication number
WO2004052576A1
WO2004052576A1 PCT/BE2003/000212 BE0300212W WO2004052576A1 WO 2004052576 A1 WO2004052576 A1 WO 2004052576A1 BE 0300212 W BE0300212 W BE 0300212W WO 2004052576 A1 WO2004052576 A1 WO 2004052576A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
frame
casting
removal
metallic frame
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.)
Ceased
Application number
PCT/BE2003/000212
Other languages
English (en)
Inventor
Mariano Collura
Vincent Boisdequin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vesuvius Group SA
Original Assignee
Vesuvius Group SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vesuvius Group SA filed Critical Vesuvius Group SA
Priority to AU2003289763A priority Critical patent/AU2003289763A1/en
Publication of WO2004052576A1 publication Critical patent/WO2004052576A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • Metallic frame for a pouring nozzle assembly of a metallic frame with a pouring nozzle and device for the insertion and/or removal of a pouring nozzle.
  • the present invention relates to a metallic frame used to girdle a pouring nozzle used in a device for the insertion and/or removal of a pouring nozzle of a molten metal casting installation.
  • the invention also concerns an assembly of such a metallic frame with a pouring nozzle.
  • the invention concerns a device for the insertion and/or removal of a pouring nozzle of a molten metal casting installation which is particularly adapted for using the metallic frame of the invention.
  • the casting of a molten metal is generally carried out in an installation comprising several refractory elements forming a casting channel between two successive metallurgic containers. These elements fulfill different functions which are the transfer of the molten metal, the shrouding of the molten metal against the cooling and the chemical attacks of the surrounding atmosphere and, optionally, the casting flow control of the molten metal.
  • the molten metal contained in a casting ladle is discharged through a discharge orifice arranged in the bottom wall of the ladle and extended by a nozzle extending through the bottom wall.
  • a molten metal stream flow control device constituted from refractory plates provided each with a pouring orifice which can be aligned or shifted one with respect to the other by 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.
  • a pouring nozzle intended for shrouding the stream discharged from the collector nozzle during its way to a tundish is provided. Conventionally, this pouring nozzle is fitted on the downstream end of the collector nozzle.
  • 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 of the tundish and downstreamly with an end formed as a planar surface and a subentry nozzle ending upstreamly with a planar surface matching the planar surface of the inner nozzle.
  • an appropriate device such as described for example in the patent EP-A1- 192,019
  • 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 molten metal can not or not any longer freely flow through the inner nozzle.
  • such an event can occur at the opening.
  • the casting sand used to prevent the molten metal from entering the casting channel before the casting has formed a sintered cupola which is too thick to break out at the opening of the ladle.
  • the pouring orifice or the inner nozzle become clogged by inclusional deposits (for example an alumina deposit in the case of the casting of an aluminium killed steel).
  • the manipulator it is also necessary to spend some type to couple (at least temporarily) the manipulator to the actuating device of the nozzle (or, more generally, to the ladle) to permit a pushing device to insert the nozzle on the guide-rails without stepping back.
  • the new nozzle insertion after the plug removal operation can take from 30 seconds to more than one minute. This time is largely superior to the upper limit above discussed and has, so far, presented an insuperable obstacle preventing the use on a ladle of such a tube forming a unit with the collector nozzle. It would however be desirable to use such a nozzle that would permit, among other, to start the pouring of the ladle with the discharge opening of the nozzle immersed in the molten metal bath. Reference is made about this to the International patent application WO-A1 -9920420 which describes the advantages associated with this nozzle.
  • One of the object of the present invention is thus the reduction of the time necessary for the insertion of the new nozzle so as to reduce or even eliminate the freezing risk of the molten metal in the casting channel, in particular in the case of a ladle.
  • this problem is solved thanks to device for the insertion and/or removal of a pouring nozzle of a molten metal casting installation, the nozzle, comprising a first upstream end able to form a joint with a matching surface of an adjacent element of the casting installation, device wherein the nozzle is brought by linear displacement from an insertion position towards a casting position where the surface of the nozzle first end is pushed against the matching surface of the adjacent element of the casting installation, by pulling the nozzle.
  • the nozzle is thereby coupled to the pulling means of the device, operation taking a very short time, it is no longer necessary to couple a pushing device or even to align the nozzle. [0013] Nevertheless, it is necessary to provide the tube with coupling means to these pulling means. Therefore, according to the present invention, the nozzle is girdled, at the level of the first end by a metallic frame provided with coupling means for pulling means of the device for the insertion and/or removal of the pouring nozzle.
  • the metallic frame is provided with coupling means for a manipulator, located on the frame on the side opposite to the firing direction in the device for the insertion and/or removal so as to permit a quick insertion of a new nozzle into the device for the insertion and/or removal.
  • the coupling means for the manipulator are also used for the coupling to the nozzle actuation means (see for example JP-Kokai-09-108865 and JP- Kokai-07-164117) and which requires thus a very large lateral hindrance
  • the frame according to the invention permits the insertion of the nozzle in a few seconds without requiring an excessive hindrance.
  • the metal frame is provided with chamfers inducing thus metallic frame to self-align horizontally and vertically in the pulling device during the transfer of the nozzle towards the casting position. It is also advantageous that this frame be provided with two opposite sides parallel to themselves and to the firing direction of then nozzle to also works as guiding surface in the device for the insertion and/or removal of a pouring nozzle.
  • the coupling means to the puling means of the device for the insertion and/or removal of a pouring nozzle which are provided on the metallic frame can be located all around the periphery of said frame as far as they permit the pulling thereof.
  • the coupling means for the pulling means of the device for the insertion and/or removal of the casting nozzle are located on each side of the frame, perpendicularly to the firing direction in of the device for the insertion and/or removal to permit the operation of the pulling means which cannot end up in front and under the discharge opening of the inner nozzle.
  • the coupling means can be variously constituted.
  • This embodiment presents the advantage of only using metallic element having a high mechanical strength. Thereby, it is even possible to have a kind of cam or slope permitting the guiding of said lugs towards the groove intended to receive them.
  • the metallic frame is so conformed.
  • the frame can be provided with an indentation intended to receive a nozzle whose the first end is circular and provided of a shoulder matching the indentation.
  • the invention relates also to such a casting nozzle having a first circular end and provided with a shoulder matching the indentation of the metallic frame as well as to an assembly of such a nozzle with a metallic frame according to the invention.
  • the tube can be surrounded at is upper end with a metallic envelope, generally embossed and/or welded so as to distribute the stress to which it is submitted. It is however possible to have a nozzle having a bare end.
  • there can be a blocking device for the nozzle in the metallic frame so as to be able to manipulate it according to different orientations without the risk for the nozzle to fall down.
  • the metallic frame is adapted to be recycled.
  • it can open in two parts pivoting around an axis.
  • the nozzle is of the type having an outer diameter of the lower end larger than the outer diameter at the level of the upper end (such as disclosed in the International patent application WO- A1 -9920420), it is impossible to introduce such a tube directly into a metallic frame and this embodiment is therefore particularly advantageous.
  • FIG. 1 shows the refractory nozzle 2 girdled into the metallic frame 1 at the level of its upper upstream end 3. It is preferable that the surface of the nozzle intended to be pushed against the downstream surface of the adjacent refractory element of the installation protrudes beyond the frame so as to avoid any interference with the downstream surface of the adjacent refractory element.
  • the coupling means to the pulling means of the device for the insertion and/or removal of the pouring nozzle are constituted of two grooves 5 located on each side of the frame, perpendicularly to the firing direction in of the device for the insertion and/or removal.
  • the pulling means can be constituted of two lugs drive entering into the grooves. On both sides, there can be a slope permitting the guiding of the lugs towards the grooves.
  • the metallic frame is provided with an indentation 9 intended to receive a nozzle 2 whose the first end is circular and provided with a shoulder 10 matching the indentation 9.
  • These coupling means can be constituted for example by two rods 6 provided with a hole (in this case, the pulling means can be constituted by another rod also provided with a hole which is introduced between the two rods of the metallic frame, the assembly being unified by a key) or by a T-shaped pin 7 (in this case, the pulling means can be constituted by a couple of hooks).
  • the figure 4 shows another embodiment according to which the actuating means are constituted by two lugs 8 located each on an opposite side of the frame, perpendicularly to the firing direction in of the device for the insertion and/or removal.
  • the pulling means are constituted by two grooves where said lugs can enter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un cadre métallique utilisé pour ceindre une buse de coulée utilisée dans un dispositif d'insertion et/de retrait d'une buse de coulée dans une installation de coulée de métal en fusion. L'invention porte également sur l'assemblage dudit cadre métallique et de la buse de coulée. Selon d'autres aspects, l'invention concerne un dispositif d'insertion et/ou de retrait d'une buse de coulée d'une installation de coulée de métal en fusion, particulièrement conçu pour utiliser le cadre métallique de l'invention. Ledit cadre est doté d'un moyen de couplage au moyen de traction du dispositif d'insertion et/ou de retrait de buse de coulée et d'un moyen de couplage (1) à un manipulateur. Ainsi, le temps requis pour insérer une nouvelle buse est réduit, si bien que le risque de durcissement du métal en fusion dans le conduit de coulée est réduit, voire supprimé, notamment en cas d'ouverture intempestive d'une poche.
PCT/BE2003/000212 2002-12-10 2003-12-08 Cadre metallique pour buse de coulee, ensemble de cadre metallique dote d'une buse de coulee et dispositif d'insertion et/ou de retrait d'une buse de coulee Ceased WO2004052576A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003289763A AU2003289763A1 (en) 2002-12-10 2003-12-08 Metallic frame for a pouring nozzle, assembly of a metallic frame with a pouring nozzle and device for the insertion and/or removal of a pouring nozzle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02447252 2002-12-10
EP02447252.4 2002-12-10

Publications (1)

Publication Number Publication Date
WO2004052576A1 true WO2004052576A1 (fr) 2004-06-24

Family

ID=32479871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE2003/000212 Ceased WO2004052576A1 (fr) 2002-12-10 2003-12-08 Cadre metallique pour buse de coulee, ensemble de cadre metallique dote d'une buse de coulee et dispositif d'insertion et/ou de retrait d'une buse de coulee

Country Status (3)

Country Link
AR (1) AR042353A1 (fr)
AU (1) AU2003289763A1 (fr)
WO (1) WO2004052576A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057639A1 (fr) * 2008-11-20 2010-05-27 Vesuvius Group S.A. Tube de poche pour installation de coulee de metal liquide
RU2470736C1 (ru) * 2009-03-24 2012-12-27 Кросакихарима Корпорейшн Устройство и способ для поддержки разливочного стакана для непрерывной разливки, система скользящего разливочного стакана и разливочный стакан для непрерывной разливки
WO2015124567A1 (fr) * 2014-02-19 2015-08-27 Vesuvius Group Couverture de poche destinée à couler du métal, kit de pièces pour un ensemble d'accouplement destiné à coupler ladite couverture de poche à une poche, installation de coulée de métal et processus d'accouplement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892235A (en) * 1988-06-23 1990-01-09 Flo-Con Systems, Inc. Joint and shroud support for pour tube and collector nozzle
FR2694711A1 (fr) * 1992-08-14 1994-02-18 Daussan & Co Dispositif de positionnement pour tube de coulée.
JPH07164117A (ja) * 1993-12-16 1995-06-27 Kurosaki Refract Co Ltd 溶融金属流出用耐火物の支持金物
JPH09108825A (ja) * 1995-10-20 1997-04-28 Toshiba Ceramics Co Ltd 浸漬ノズルのハンドリング装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892235A (en) * 1988-06-23 1990-01-09 Flo-Con Systems, Inc. Joint and shroud support for pour tube and collector nozzle
FR2694711A1 (fr) * 1992-08-14 1994-02-18 Daussan & Co Dispositif de positionnement pour tube de coulée.
JPH07164117A (ja) * 1993-12-16 1995-06-27 Kurosaki Refract Co Ltd 溶融金属流出用耐火物の支持金物
JPH09108825A (ja) * 1995-10-20 1997-04-28 Toshiba Ceramics Co Ltd 浸漬ノズルのハンドリング装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 08 29 August 1997 (1997-08-29) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057639A1 (fr) * 2008-11-20 2010-05-27 Vesuvius Group S.A. Tube de poche pour installation de coulee de metal liquide
US20110248055A1 (en) * 2008-11-20 2011-10-13 Vesuvius Crucible Company Ladle shroud for liquid metal casting installation
CN102281969B (zh) * 2008-11-20 2014-05-07 维苏威集团有限公司 液态金属浇注机构用钢包长水口
RU2516020C2 (ru) * 2008-11-20 2014-05-20 Везувиус Груп С.А. Труба ковша для разливки жидкого металла
AU2009317592B2 (en) * 2008-11-20 2014-05-22 Vesuvius Group S.A. Ladle pipe for liquid metal casting plant
US9174277B2 (en) 2008-11-20 2015-11-03 Vesuvius Group S.A. Ladle shroud for liquid metal casting installation
RU2470736C1 (ru) * 2009-03-24 2012-12-27 Кросакихарима Корпорейшн Устройство и способ для поддержки разливочного стакана для непрерывной разливки, система скользящего разливочного стакана и разливочный стакан для непрерывной разливки
WO2015124567A1 (fr) * 2014-02-19 2015-08-27 Vesuvius Group Couverture de poche destinée à couler du métal, kit de pièces pour un ensemble d'accouplement destiné à coupler ladite couverture de poche à une poche, installation de coulée de métal et processus d'accouplement
US10052687B2 (en) 2014-02-19 2018-08-21 Vesuvius Group, S.A. Ladle shroud for casting metal, kit of parts for coupling assembly for coupling said ladle shroud to a ladle, metal casting installation and coupling process

Also Published As

Publication number Publication date
AU2003289763A1 (en) 2004-06-30
AR042353A1 (es) 2005-06-15

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