EP1079947B1 - Bouchon pour fermer des cuves contenant des metaux en fusion - Google Patents

Bouchon pour fermer des cuves contenant des metaux en fusion Download PDF

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Publication number
EP1079947B1
EP1079947B1 EP99923554A EP99923554A EP1079947B1 EP 1079947 B1 EP1079947 B1 EP 1079947B1 EP 99923554 A EP99923554 A EP 99923554A EP 99923554 A EP99923554 A EP 99923554A EP 1079947 B1 EP1079947 B1 EP 1079947B1
Authority
EP
European Patent Office
Prior art keywords
stopper
fixing rod
stopper body
locking projections
locking
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.)
Expired - Lifetime
Application number
EP99923554A
Other languages
German (de)
English (en)
Other versions
EP1079947A1 (fr
Inventor
Ian Old Kilpatrick Proudfoot
Stephen John Lee
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Priority to EP01123636A priority Critical patent/EP1177845B1/fr
Publication of EP1079947A1 publication Critical patent/EP1079947A1/fr
Application granted granted Critical
Publication of EP1079947B1 publication Critical patent/EP1079947B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods 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
    • B22D41/14—Closures
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods therefor
    • B22D41/186—Stopper-rods therefor with means for injecting a fluid into the melt

Definitions

  • the invention relates to a stopper for the closure of molten metal receiving containers, according to the preamble of the claim 1.
  • DE-A 4 028 793 describes a device for holding a refractory, ceramic Plugging in a metallurgical vessel on one with a thread provided carrier tube known in an installation space of the plug protrudes. Between the stopper and the support tube are in the area of the installation space Sealing surfaces provided. To achieve that the stopper is not Thread is required, a locking nut is screwed onto the thread of the support tube, which has noses on its outer circumference. The stopper points in the area of the installation space also recesses as stops for the lugs. The sealing surface of the carrier tube comes in when screwing in the carrier tube the locking nut on the sealing surface of the plug.
  • a plug which is a metal Insert sleeve at a distance from the top end of the rod-shaped Plug body pressed and burned with it and a threaded hole must have coaxial to the bore of the plug body, in which a screwed metal holding rod provided with an external thread. Regarding Manufacturing and assembly is therefore this plug in several ways complex and expensive.
  • From DE-U-9 109 532 is a stopper as a control valve for spouts in metallurgical Melting vessels known in which the through hole of the Plug body has an annular step at the gas inlet side upper end. A seal made of temperature-resistant material lies on the step. A metal plug rod protrudes from above into the through hole and lies on the seal with an enlarged section. A cylindrical one Fireproof ceramic sleeve is with an external thread in the top extended section of the through hole in a corresponding internal thread screwed into the plug body and press-fit against the retaining ring the stopper rod. The plug rod protrudes with its upper one free end of the plug body and is with its below the retaining ring running free end over a section into the through hole of the Plug body introduced. This version requires a threaded connection between the ceramic sleeve and the plug body, which the Assembly difficult.
  • the object of the present invention is a stopper of the type mentioned kind of propose which is simple in construction, easy to assemble and durable can be fixed relative to the lifting mechanism.
  • the support rod needs for assembly and disassembly in relation to the plug body to be rotated only by a small angle of, for example, 90 ° in order to the locking projections in the locking recesses, which are open at the bottom on the front to be able to intervene.
  • a complex screwing the both parts with a temperature and dirt-prone threaded connection is also avoided.
  • the support rod in Locking position relative to the insert sleeve of the plug body axially braced.
  • the handrail can be an external thread for receiving have a clamping nut, which is suitable, if necessary, under Intermediate layer of a washer, which has a larger cross section than the tightening nut can have on an upper, preferably flat Support the end face of the plug body. This way, through Tighten the locking nut with its Locking projections into the locking recesses as far as the stop drawn. If the upper end of the plug body has an upper end face has, the clamping nut or the washer over the entire surface support.
  • the Handrail one reaching into the free space of the plug body Longitudinal bore on and on the free space closes a longitudinal bore of the Plug body for the supply of gas in the molten metal.
  • the Longitudinal bores connected to the flow are preferred axially aligned with each other.
  • Locking projections formed like a pin and shaped and / or non-positive, but detachable, can be accommodated in the locking recesses. On this way, a pre-fixation of the handrail in the Locking position against the plug body can be ensured, so that an axial bracing of the support rod relative to the plug body may be unnecessary.
  • the plug for the closure of molten metal receiving containers a rod-shaped in this case Plug body 1 made of refractory material.
  • the plug body 1 has one frontal possibly enlarged bore 3, which is essentially coaxial in a longitudinal bore 16 continues, which for this gas supply to the molten metal extends to the free end of the plug body 1.
  • the bore 3 serves the releasable Engagement of a z. B. metal support rod 4 for attachment to a (not shown) lifting mechanism so that the plug as a valve member Closure at the bottom of the molten metal receiving container can.
  • the support rod 4 has two diametrically at its lower fastening end 5 opposite each other, radially from the circumference of the support rod 4 externally projecting locking projections 6.
  • the locking projections 6 can by 180 ° accordingly mutually offset longitudinal slots 7 of the plug body 1 into an axial Position are transferred in which the locking projections 6 in one provided below a lower end face 9 of the plug body 1 Allow space 10 to rotate with the holding rod 4, in particular to a position in which they are with the lower end face 9 of the insert sleeve 2 open locking recesses 8 are aligned and by pulling the Enter support rod 4 axially upwards into these locking recesses 8 and can snap into place if necessary. In this way, twisting the Stopper body 1 prevented relative to the support rod 4. Also take Plug body 1 and support rod 4 a defined axial position to each other on.
  • both parts can be braced axially against each other.
  • the support rod 4 carries an external thread 11 for receiving a clamping nut 12 in any case in an area which from the Plug body 1 protrudes.
  • the clamping nut 12 is suitable for itself with the interposition of a washer 13 on the upper end face 14 of the Support plug body 1,
  • the respective Bores 3, 6, 17 are in flow connection via the free space 10 to each other and are aligned axially to each other.
  • locking projections 6 are also the same Angular distance distributed over the circumference of the support rod 4, that is For example, three locking projections 6 at a distance of 120 °. That corresponds then also the number and arrangement of the longitudinal slots 7 of the plug body 1 and each offset by half the angular distance of the longitudinal slots 7 Arrangement of the locking recesses 8, in which the locking projections 6 intervene positively and / or non-positively.
  • Temperature-resistant sealing rings can be used to seal the gas supply to the outside 19, e.g. B. in the form of a ceramic compressible fiber seal, be provided between the washer 13 and the plug body 1.
  • the required Tightness is particularly evident when the holding rod 4 is axially clamped achieved on the plug body 1 by means of the clamping nut 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Claims (8)

  1. Bouchon pour fermer des cuves contenant des métaux en fusion, avec un corps de bouchon (1) en matériau réfractaire, par exemple en forme de tige, muni d'un alésage (3) pour l'insertion amovible d'une tige de maintien (4), par exemple métallique, destinée à être appliquée sur un mécanisme de levage, la tige de maintien (4) comportant à son extrémité de fixation (5) au moins deux saillies de verrouillage (6), diamétralement opposées, en saillie vers l'extérieur dans le sens radial par rapport au pourtour de la tige de maintien (4), les saillies de verrouillage pouvant être déplacées dans des mortaises longitudinales (7) du corps de bouchon (1) décalées angulairement de façon correspondante et jouxtant l'alésage (3), jusqu'à une position axiale dans laquelle la tige de maintien (4) avec les saillies de verrouillage (6) peut tourner par rapport au corps du bouchon (1), les mortaises longitudinales (7) s'étendant de l'extrémité supérieure du corps de bouchon (1) jusqu'à une cavité (10) pour laisser tourner la tige de maintien (4) avec les saillies de verrouillage (6), caractérisé en ce que les saillies de verrouillage (6) sont fixées à même la tige de maintien (4) et peuvent pénétrer, par un mouvement axial en direction de l'extrémité supérieure du corps de bouchon (1), dans des cavités d'arrêt (8) du corps de bouchon (1) décalées angulairement de façon correspondante et s'ouvrant vers une surface frontale (9) du corps de bouchon (1).
  2. Bouchon selon la revendication 1, caractérisé en ce que la surface frontale (9) avec les cavités d'arrêt (8) est formée par un insert (2).
  3. Bouchon selon la revendication 1 ou 2, caractérisé en ce que la tige de maintien (4), en position de verrouillage, peut être mise axialement sous tension par rapport à l'insert (2) du corps de bouchon (1).
  4. Bouchon selon l'une des revendications précédentes, caractérisé en ce que la tige de maintien (4) est pourvue d'un filetage extérieur (11) pour recevoir un écrou tendeur (12) adapté, le cas échéant en interposant une bague (13), à prendre appui contre une surface frontale supérieure (14), de préférence plane, du corps de bouchon (1).
  5. Bouchon selon l'une des revendications précédentes, caractérisé en ce que la tige de maintien (4) est pourvue d'un alésage longitudinal (17) qui s'étend jusqu'à la cavité (10) du corps de bouchon (1) et qui rejoint dans la cavité (10) un alésage longitudinal (16) du corps de bouchon (1) pour l'admission d'un gaz dans les métaux en fusion.
  6. Bouchon selon l'une des revendications précédentes, caractérisé en ce que les saillies de verrouillage (6) ont la forme de clavettes et peuvent être reçues dans les cavités d'arrêt (8) par emboítement ou par adhérence.
  7. Bouchon selon l'une des revendications précédentes, caractérisé en ce que, lorsqu'il y a plus que deux saillies de verrouillage (6), celles-ci sont disposées à égale distance angulaire sur la périphérie de la tige de maintien (4).
  8. Bouchon selon l'une des revendications précédentes, caractérisé en ce que la tige de maintien (4) est rendue étanche par rapport au corps de bouchon (1) sur sa périphérie, en particulier au moyen d'une bague d'étanchéité réfractaire (19), par exemple en forme d'un joint en fibre céramique, entre la bague (13) et le corps de bouchon (1).
EP99923554A 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion Expired - Lifetime EP1079947B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01123636A EP1177845B1 (fr) 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19823988A DE19823988C2 (de) 1998-05-29 1998-05-29 Stopfen für den Verschluß von Metallschmelze aufnehmenden Behältnissen
DE19823988 1998-05-29
PCT/EP1999/003145 WO1999062659A1 (fr) 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP01123636.1 Division-Into 2001-10-02

Publications (2)

Publication Number Publication Date
EP1079947A1 EP1079947A1 (fr) 2001-03-07
EP1079947B1 true EP1079947B1 (fr) 2002-07-24

Family

ID=7869251

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99923554A Expired - Lifetime EP1079947B1 (fr) 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion
EP01123636A Expired - Lifetime EP1177845B1 (fr) 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01123636A Expired - Lifetime EP1177845B1 (fr) 1998-05-29 1999-05-07 Bouchon pour fermer des cuves contenant des metaux en fusion

Country Status (6)

Country Link
EP (2) EP1079947B1 (fr)
AU (1) AU4038999A (fr)
DE (3) DE19823988C2 (fr)
ES (2) ES2183556T3 (fr)
TW (1) TW407080B (fr)
WO (1) WO1999062659A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106284A1 (fr) * 1999-12-11 2001-06-13 TYK Europe GmbH Système d'étanchéité pour quenouille
US6540009B1 (en) 2000-08-25 2003-04-01 Akechi Ceramics Kabushiki Kaisha Holding structure for continuous casting long stopper
CA2319290A1 (fr) * 2000-09-14 2002-03-14 Akechi Ceramics Kabushiki Kaisha Structure de support pour long bouchon de moulage continu
ES2268551T3 (es) * 2004-07-29 2007-03-16 REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG Dispositivo de tapon alargado.
AT524495A1 (de) * 2020-10-09 2022-06-15 Sheffield Hi Tech Refractories Germany Gmbh Stopfen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005311A (en) * 1934-07-06 1935-06-18 American Sheet & Tin Plate Stopper rod for ladles
US4791978A (en) * 1987-11-25 1988-12-20 Vesuvius Crucible Company Gas permeable stopper rod
US4946083A (en) * 1988-12-29 1990-08-07 Vesuvius Crucible Company One-piece stopper rod
GB2228222A (en) * 1989-01-26 1990-08-22 Thor Ceramics Ltd Rotor for molten material discharge control valve
GB2247637B (en) * 1990-08-11 1994-08-10 Thor Ceramics Ltd Stoppers for use in molten metal handling
DE4028793A1 (de) * 1990-09-11 1992-03-12 Didier Werke Ag Einrichtung zum halten eines stopfens bei einem metallurgischen gefaess sowie stopfen fuer eine solche einrichtung
DE4040388A1 (de) * 1990-12-17 1992-07-02 Didier Werke Ag Einrichtung zum halten eines stopfens fuer ein metallurgisches gefaess und stopfen hierfuer
DE9109532U1 (de) * 1991-08-01 1991-10-10 Radex-Heraklith Industriebeteiligungs AG, Wien Gasblasender Stopfen
DE4212450A1 (de) * 1991-11-26 1993-05-27 Didier Werke Ag Einrichtung zum halten eines stopfens und stopfen
DE4324768C1 (de) * 1993-07-23 1994-08-25 Labod Burkhard Anordnung zur Verbindung einer Stopfenstange für ein metallurgisches Gefäß mit ihrer Hebevorrichtung und für die Anordnung geeignete Stopfenstange sowie Verfahren zur Herstellung der Anordnung
DE4444617A1 (de) * 1994-12-15 1996-06-27 Burkhard Labod Anordnung zur Verbindung einer Stopfenstange für ein metallurgisches Gefäß mit ihrer Hebevorrichtung
GB9613810D0 (en) * 1996-07-02 1996-09-04 Foseco Int Stopper rod

Also Published As

Publication number Publication date
ES2203571T3 (es) 2004-04-16
EP1177845B1 (fr) 2003-07-30
WO1999062659A1 (fr) 1999-12-09
DE19823988A1 (de) 1999-12-09
AU4038999A (en) 1999-12-20
DE19823988C2 (de) 2000-07-20
ES2183556T3 (es) 2003-03-16
TW407080B (en) 2000-10-01
EP1177845A1 (fr) 2002-02-06
DE59906467D1 (de) 2003-09-04
DE59902127D1 (de) 2002-08-29
EP1079947A1 (fr) 2001-03-07

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