EP0461340B1 - Busette de coulée pour obturateur coulissant - Google Patents

Busette de coulée pour obturateur coulissant Download PDF

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Publication number
EP0461340B1
EP0461340B1 EP91101400A EP91101400A EP0461340B1 EP 0461340 B1 EP0461340 B1 EP 0461340B1 EP 91101400 A EP91101400 A EP 91101400A EP 91101400 A EP91101400 A EP 91101400A EP 0461340 B1 EP0461340 B1 EP 0461340B1
Authority
EP
European Patent Office
Prior art keywords
plate
casting
metal casing
accordance
pins
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
EP91101400A
Other languages
German (de)
English (en)
Other versions
EP0461340A1 (fr
EP0461340B2 (fr
Inventor
Heinz Wertz
Winfried Kliewer
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Individual
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0461340A1 publication Critical patent/EP0461340A1/fr
Publication of EP0461340B1 publication Critical patent/EP0461340B1/fr
Application granted granted Critical
Publication of EP0461340B2 publication Critical patent/EP0461340B2/fr
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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
    • 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

Definitions

  • the invention relates to a pouring device for slide systems, which are used, for example, in steel ladles, with a substantially cylindrical sheet metal jacket which has a refractory lining on the inside, and a fastening device with which the pouring device is fastened to a slide plate.
  • Such pouring devices for slide systems which have an essentially cylindrical tube made of sheet steel, which has a collar at its end facing a steel ladle. An annular support ring is pushed over the tube in such a way that the support ring lies against the collar surface and engages with cams arranged on the support ring in a link arranged on the slide plate.
  • the inside of the tube is lined with refractory material.
  • the disadvantage of this pouring device is that an increase in the casting diameter is only possible in connection with a larger slide plate or by accepting a reduction in the wall thickness of the refractory lining.
  • the use of a larger slide plate has the disadvantage that the slide plate made of refractory material is very expensive.
  • the wall thickness of the refractory lining can only be reduced to a very limited extent for safety reasons. Firstly, by reducing the thickness of the lining reduces the thermal insulation very much and on the other hand there is an increased risk of steel breakthrough due to this reduction in the wall thickness.
  • a pouring device with a thin-walled refractory lining can only be reused a few times, since the steel flowing through creates a high level of wear on the lining.
  • a slide system in the pouring area of a steel ladle is disclosed in FR-A 2 565 859.
  • the pouring device of the system described in FR-A 2 565 859 comprises a completely unclad tubular pouring element made of refractory material.
  • This element which is not provided with a metal jacket, has a cam ring or at least annularly arranged cams in the region of the lower third.
  • the slide system has an upper spring-loaded plate on which a sleeve section is arranged.
  • the element is inserted into this sleeve section and held in this position with an intermediate sleeve, the intermediate sleeve being screwed to the upper sleeve section and having a ring on the opposite, lower end face, which serves as an abutment for the cam ring or the annularly arranged cams of the element . Since the element consists exclusively of refractory material, no forces can be transmitted via the cam ring or cams.
  • the so-called key is screwed onto the intermediate sleeve, which leads a counter-bearing mouthpiece to the element, which is then clamped between the upper slide plate and the counter-bearing mouthpiece and is thus fixed as a pouring system.
  • the object of the invention is to avoid the aforementioned disadvantages by creating a pouring device which can be fastened quickly and easily to a slide plate and which has a high level of security against steel breakthrough even after repeated use.
  • the technical solution provides that the essentially cylindrical sheet metal jacket and the fastening device are integrally connected to one another and that the sheet metal jacket and the refractory lining have a constant wall thickness in the area of the fastening device.
  • a simple fastening is achieved in that the fastening device has a plurality of cams which are essentially rectangular and are fastened to the sheet metal jacket.
  • a particularly simple attachment can be achieved in that the cams have a collar which bears against the sheet metal jacket and is connected to it.
  • the sheet metal jacket has openings into which the cams are inserted from the inside and rest with the collar on the inner wall of the sheet metal jacket.
  • the assembly of the cams is very simple, since the cams are only inserted into the previously punched-out openings in the sheet metal jacket and are then connected to the sheet metal jacket. Due to the shape of the cams and the openings and the collar arranged on the cams, mechanical production of the pouring device is also possible.
  • An easy assembly of the pouring device in the gate arranged on the slide plate is achieved in that the substantially rectangular cams have an inclined surface on their underside which slides on a corresponding slide track when the pouring device is mounted on the slide plate.
  • the cams are preferably attached to the sheet metal jacket at regular intervals.
  • a particularly advantageous embodiment results when three cams are each attached to the sheet metal jacket offset by 120 °. This makes it possible to produce the pouring device in a cost-effective manner, which ensures sufficient stability of the pouring device on the slide plate and, furthermore, can be guided in the setting with sufficient stability.
  • the sheet metal jacket has a plurality of cams which are designed to be point or axisymmetric and are fastened in openings in the sheet metal jacket which are below the openings for the cams Attachment of the pouring device are arranged.
  • a tool is attached to this second cam, with the aid of which the pouring device can be screwed into or out of the link arranged on the slide plate.
  • This tool can be, for example, manually or electrohydraulically driven pliers.
  • the cams for the attachment of a tool are circular.
  • the cams are preferably attached to the sheet metal jacket by means of spot welding. This ensures that the cams are connected to the sheet metal jacket with sufficient strength and that the welding process does not cause any major distortion of the sheet, which in some cases is very thin-walled.
  • the sheet metal jacket has an annular groove at its end facing the slide plate.
  • This annular groove which is designed, for example, as an inner bead, serves to stiffen the sheet metal jacket and enables a lining of refractory material applied uniformly to the inner surface of the sheet metal body.
  • the sheet metal jacket has at least one bulge around the sheet metal jacket, preferably an outer bead, at its lower end. With this bulge, the heat transfer between the sheet metal jacket and the connector arranged in this area when pouring the liquid steel is interrupted.
  • An essentially cylindrical sheet metal jacket 1 has an annular groove 14 at its end 5 facing a slide plate (not shown). At the opposite end 15 of the sheet metal jacket 1, which is conical, two outer beads 16 are arranged.
  • the sheet metal jacket 1 has a fireproof lining 2 on its inside.
  • openings 3 are punched at regular intervals, which are substantially rectangular, the end 5 facing edge 6 of the opening 3 is arranged at a sharp angle to the central axis 7.
  • the three remaining edges of the opening 3 are arranged either parallel or at right angles to the central axis 7.
  • a round opening 8 is punched into the sheet metal jacket 1 below each opening 3. Overall, three essentially rectangular openings 3 and three round openings 8 are punched into the sheet metal jacket 1, each of which is arranged offset by 120 ° in the sheet metal jacket 1.
  • a cam 4 is inserted, which has a shape corresponding to the opening and has a circumferential collar 11.
  • the collar 11 bears against the inner wall 9 of the sheet metal jacket 1 after the assembly of the cam 4.
  • the collar 11 is welded to the metal jacket 1. The welding process is carried out by means of spot welding.
  • cams 10 are also inserted, which also have a collar 11 and are fixed by means of spot welding to the inner wall 9 of the sheet metal jacket 1.
  • the pouring device for steel ladles according to the invention is produced in the following manner: In the essentially cylindrical sheet metal jacket 1, the three essentially rectangular openings 3, each offset by 120 °, and the three, each arranged under the rectangular openings 3, are punched at round openings 8. Then the cams 4, 10, which are deep-drawn from a sheet, are inserted into the corresponding openings 3, 8 from the inside, so that the collar 11 arranged on the cams 4, 10 bears against the inner wall 9 of the sheet metal jacket 1. The cams 4, 10 are then attached to the sheet metal jacket by means of spot welding processes.
  • the cams 4, 10 are poured out with refractory material. Finally, the refractory lining 2 is poured into the sheet metal jacket 1.
  • the pouring device After dam hardening the refractory lining 2 in the sheet metal jacket 1, the pouring device is inserted into the slide guide arranged on a slide plate in such a way that the cams 4 rest with the inclined surface 12 arranged on the cam underside 13 in the slide slide backdrop.
  • the pouring device By means of a tool, not shown in the figures, in which the cams 10 engage, the pouring device is rotated until the pouring device is seated firmly in the slide plate.
  • the pouring device can be removed from the slide plate in a corresponding manner. Due to its design, it is possible to use the pouring device several times.
  • the invention is not restricted to the exemplary embodiment shown. Several changes and modifications are possible without departing from the Rahman invention.
  • the cams 4 and 10 can have a different shape than that shown in the figures. It is also possible for Fernar to arrange more than three cams 4, each offset by 120 °, on the sheet metal jacket 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Barrages (AREA)

Claims (12)

  1. Dispositif de coulée pour des systèmes à tiroir mis en oeuvre par exemple dans des poches de coulée d'acier, comprenant une enveloppe en tôle (1) sensiblement cylindrique dont la face intérieure est garnie d'un revêtement réfractaire (2), et comprenant un dispositif de fixation permettant de fixer le dispositif de coulée à une plaque de tiroir, caractérisé en ce que l'enveloppe en tôle (1) et le dispositif de fixation sont reliés l'un à l'autre d'une seule pièce, et en ce que l'enveloppe en tôle (1) et le revêtement réfractaire (2) présentent une épaisseur de paroi constante dans la zone du dispositif de fixation.
  2. Dispositif de coulée selon la revendication 1, caractérisé en ce que le dispositif de fixation comporte plusieurs mentonnets (4) qui sont de forme sensiblement rectangulaire et qui sont fixés à l'enveloppe en tôle (1).
  3. Dispositif de coulée selon la revendication 2, caractérisé en ce que les mentonnets (4) comportent un collet (11).
  4. Dispositif de coulée selon la revendication 2 ou 3, caractérisé en ce que l'enveloppe en tôle (1) comporte des ouvertures (3), dans lesquelles les mentonnets (4) sont introduits par l'intérieur et sont appliqués contre la paroi intérieure (9) de l'enveloppe en tôle (1) par l'intermédiaire du collet (11).
  5. Dispositif de coulée selon l'une des revendications 2 à 4, caractérisé en ce que les mentonnets (4) comportent, sur leur dessous (13), une surface inclinée (12).
  6. Dispositif de coulée selon l'une des revendications 2 à 5, caractérisé en ce que les mentonnets (4) sont fixés à intervalles réguliers sur l'enveloppe en tôle (1).
  7. Dispositif de coulée selon la revendication 6, caractérisé en ce que trois mentonnets (4) sont fixés sur l'enveloppe en tôle (1) avec un intervalle de 120° entre chacun d'eux.
  8. Dispositif de coulée selon l'une des revendications 1 à 7, caractérisé en ce que l'enveloppe en tôle (1) comporte plusieurs mentonnets (10) qui sont conçus selon une symétrie ponctuelle ou une symétrie par rapport à un axe et qui sont fixés dans des ouvertures (8) de l'enveloppe en tôle (1) situées en dessous des ouvertures (3) destinées aux mentonnets (4) de fixation du dispositif de coulée.
  9. Dispositif de coulée selon la revendication 8, caractérisé en ce que les mentonnets (10) sont de forme circulaire.
  10. Dispositif de coulée selon l'une des revendications 2 à 9, caractérisé en ce que les mentonnets (4, 10) sont fixés à l'enveloppe en tôle (1) par soudage par points.
  11. Dispositif de coulée selon l'une des revendications 1 à 10, caractérisé en ce que, à son extrémité (5) tournée vers la plaque de tiroir, l'enveloppe en tôle (1) comporte une gorge annulaire (14).
  12. Dispositif de coulée selon l'une des revendications 1 à 11, caractérisé en ce que l'enveloppe en tôle (1) comporte à son extrémité inférieure (15) au moins une partie bombée, de préférence une moulure extérieure (16), qui en fait le tour.
EP91101400A 1990-06-02 1991-02-02 Busette de coulée pour obturateur coulissant Expired - Lifetime EP0461340B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9006264U 1990-06-02
DE9006264U DE9006264U1 (fr) 1990-06-02 1990-06-02

Publications (3)

Publication Number Publication Date
EP0461340A1 EP0461340A1 (fr) 1991-12-18
EP0461340B1 true EP0461340B1 (fr) 1996-04-03
EP0461340B2 EP0461340B2 (fr) 2001-11-21

Family

ID=6854359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101400A Expired - Lifetime EP0461340B2 (fr) 1990-06-02 1991-02-02 Busette de coulée pour obturateur coulissant

Country Status (4)

Country Link
EP (1) EP0461340B2 (fr)
DE (2) DE9006264U1 (fr)
ES (1) ES2086425T5 (fr)
GR (1) GR3019558T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9006264U1 (fr) * 1990-06-02 1990-08-09 Wertz, Heinz, 4000 Duesseldorf, De
FI20060649L (fi) * 2006-07-04 2008-01-05 Indref Oy Metallisulan valutussuojaputki

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1379236A (en) * 1972-07-27 1975-01-02 Singer A R E Nozzles for molten metals
US3845943A (en) * 1973-10-26 1974-11-05 J Shapland Refractory pouring tube
ATE23022T1 (de) * 1981-11-25 1986-11-15 Stein Refractories Feuerfestbestandteile.
IT1142623B (it) * 1981-12-22 1986-10-08 Flocon Italiana Procedimento per rigenerare una piastra mobile di un cassetto di colata di una siviera
US4561573A (en) † 1982-08-20 1985-12-31 Flo-Con Systems, Inc. Valve and replaceable collector nozzle
US4582232A (en) * 1984-06-19 1986-04-15 Flo-Con Systems, Inc. Valve, clamp, refractory and method
GB8507277D0 (en) * 1985-03-20 1985-04-24 British Steel Corp Refractory component
GB2220875A (en) * 1988-01-27 1990-01-24 Vesuvius France Sa Integral slide-valve member and casting tube member
DE9006264U1 (fr) * 1990-06-02 1990-08-09 Wertz, Heinz, 4000 Duesseldorf, De

Also Published As

Publication number Publication date
DE59107640D1 (de) 1996-05-09
ES2086425T5 (es) 2002-05-16
DE9006264U1 (fr) 1990-08-09
ES2086425T3 (es) 1996-07-01
EP0461340A1 (fr) 1991-12-18
GR3019558T3 (en) 1996-07-31
EP0461340B2 (fr) 2001-11-21

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