EP0387229A1 - Prallplatte für eine Giesspfanne - Google Patents

Prallplatte für eine Giesspfanne Download PDF

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Publication number
EP0387229A1
EP0387229A1 EP90870031A EP90870031A EP0387229A1 EP 0387229 A1 EP0387229 A1 EP 0387229A1 EP 90870031 A EP90870031 A EP 90870031A EP 90870031 A EP90870031 A EP 90870031A EP 0387229 A1 EP0387229 A1 EP 0387229A1
Authority
EP
European Patent Office
Prior art keywords
slab
impact
refractory
pocket
ladle
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.)
Withdrawn
Application number
EP90870031A
Other languages
English (en)
French (fr)
Inventor
René Desaar
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.)
Recherches Et Developpements Desaar SA
Original Assignee
Recherches Et Developpements Desaar 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 Recherches Et Developpements Desaar SA filed Critical Recherches Et Developpements Desaar SA
Publication of EP0387229A1 publication Critical patent/EP0387229A1/de
Withdrawn legal-status Critical Current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
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/062—Stools for ingot moulds
    • 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
    • B22D41/003—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with impact pads

Definitions

  • the present invention relates to ladles for molten metal. It relates in particular to the impact slab which is built in the refractory lining lining the bottom of a ladle and which is intended to undergo the impact of the jet of molten metal when it is poured into the poached.
  • This refractory material slab is designed to offer good resistance to erosion under the effect of the jet of molten metal.
  • the subject of the invention is an improvement to the impact slab of a ladle with the aim of reducing wear both of the impact slab and of the refractory bricks in the vicinity of the impact slab and of thus increasing the service life of refractory elements.
  • an impact tile is proposed for a ladle, which impact tile is remarkable in that, on at least one of its sides, it has a protruding back on the surface of the slab, said return being intended to be built into the lateral refractory lining of the ladle.
  • This structure of the impact slab which makes it possible to accommodate the return of the slab in the refractory lining of the wall of the pocket, saves the life of the refractory wall of the pocket which can in general be twice the life pocket sole.
  • the face intended to undergo the impact of the jet of molten metal poured into the pocket has a network of grooves.
  • metal scrap calibrated so as to form a protection of the slab with respect to the jet of metal during its impact on the slab.
  • the impact slab according to the invention can be housed in the wear part and in the safety part of the refractory sole of the pocket.
  • the slab can also itself include a wear part and a safety part.
  • an impact slab in which is enclosed a metal wire extending in a predetermined plane, the ends of the aforementioned metal wire being accessible outside the pocket.
  • This particular arrangement of the impact slab allows effective and easy control of the wear of this slab.
  • a supervisor can check the state of wear of the refractory element. Indeed, when the wire is protected by refractory material over its entire extent, its resistance is relatively low. On the other hand, when the refractory material is attacked by wear down to the wire, the latter melts and the resistance measured becomes very high. Thanks to this means, it is therefore possible to easily detect the moment when the wear refractory reaches a predetermined wear state and when it is necessary to provide for its replacement.
  • FIG. 1 there is shown schematically in vertical section an exemplary metal pouring ladle.
  • the tap hole provided in the bottom of the pocket is not visible in this figure because it is located behind the cutting plane.
  • the bottom of the pocket 1 and its side wall are coated internally with refractory bricks.
  • This refractory lining comprises a wear layer 2 and a safety layer 4 forming the bottom of the pocket and a wear layer 3 and a safety layer 5 lining the side wall of the pocket.
  • an impact plate 6 positioned so as to undergo the impact of the jet of liquid metal poured into the pocket.
  • the trajectory of a jet of liquid metal is symbolized in Figure 1 by the arrows marked M.
  • the impact plate 6 is advantageously formed with a return 13 intended to be built into the refractory lining 3 of the side wall of the pocket.
  • This structure of the impact slab 6 which makes it possible to accommodate the return of slab 13 in the wear coating 3 of the wall of the pocket, protects the lifetime of this refractory wall of the pocket in the vicinity of the slab of 'impact.
  • the damping effect of the jet can be reinforced by depositing on the crest surface 11 of the impact slab elements, for example calibrated metal grapeshot, which form a protection of the slab 6 with respect to the metal jet upon impact on the slab.
  • Figures 2 to 4 illustrate an exemplary embodiment in which the face 11 of the impact plate 6 has a network of grooves 12 extending in two orthogonal directions. These grooves 12 have the effect of damping the flow of liquid metal which spreads in the grooves 12 and is channeled by them, thus avoiding the formation of swirls of liquid metal which otherwise attack the refractory bricks 5 around.
  • the impact slab according to the invention advantageously comprises two parts of different qualities: a wear part and a safety part.
  • the wear part 14 is flush with the same level as the wear part 2 of the bottom of the pocket with a return 13 which is housed in the masonry of the refractory lining 3 of the wall of the pocket.
  • the security part 15 is housed in the security layer of the sole.
  • a second aspect of the invention relates to a means of controlling the wear of a refractory element.
  • This means consists of a metal wire 16, for example a steel wire, housed in the mass of the refractory slab and whose ends 17, 18 are accessible outside of the pocket 1.
  • the wire 16 extends along a sinuous path as shown in FIG. 5 and forms a ply occupying a predetermined horizontal plane in the wear part of the impact pad.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP90870031A 1989-02-28 1990-02-26 Prallplatte für eine Giesspfanne Withdrawn EP0387229A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8900200A BE1002866A5 (fr) 1989-02-28 1989-02-28 Dalle d'impact pour poche de coulee.
BE8900200 1989-02-28

Publications (1)

Publication Number Publication Date
EP0387229A1 true EP0387229A1 (de) 1990-09-12

Family

ID=3884038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90870031A Withdrawn EP0387229A1 (de) 1989-02-28 1990-02-26 Prallplatte für eine Giesspfanne

Country Status (2)

Country Link
EP (1) EP0387229A1 (de)
BE (1) BE1002866A5 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021461A1 (en) * 1991-06-03 1992-12-10 Usx Engineers And Consultants, Inc. Tundish turbulence suppressor pad
NL1006304C2 (nl) * 1997-06-13 1998-12-15 Hoogovens Staal Bv Gietpijp.
CN112317705A (zh) * 2021-01-04 2021-02-05 北京科技大学 锭模、冶炼系统和大锭型合金铸锭的生产方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1081253A (fr) * 1953-04-29 1954-12-17 Lingotière et moules similaires perfectionnés et éléments entrant dans leur construction
DE1182679B (de) * 1962-02-07 1964-12-03 Silika Und Schamottefabriken M Ausmauerung fuer Roheisenpfannen mit torpedofoermigem Laengsschnitt
FR2290975A1 (fr) * 1974-06-12 1976-06-11 Nippon Crucible Co Procede et dispositif pour fixer une piece rapportee a la plaque de base d'une lingotiere
DE2643009A1 (de) * 1976-09-24 1978-03-30 Odermath Gmbh Heinrich Einlegekoerper zum schutz der aufprallflaeche eines giesstrahls in einem metallurgischen gefaess
SU954152A1 (ru) * 1980-09-24 1982-08-30 Предприятие П/Я А-3681 Вкладыш дл поддона изложницы
GB2164281A (en) * 1984-09-18 1986-03-19 Dresser Ind Tundish with gas injection tile
EP0184634A1 (de) * 1984-11-28 1986-06-18 Lichtenberg Feuerfest Gmbh Pfanne zum Aufnehmen und ggf. Nachbehandeln und/oder Transportieren von heissen, flüssigen Metallen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1081253A (fr) * 1953-04-29 1954-12-17 Lingotière et moules similaires perfectionnés et éléments entrant dans leur construction
DE1182679B (de) * 1962-02-07 1964-12-03 Silika Und Schamottefabriken M Ausmauerung fuer Roheisenpfannen mit torpedofoermigem Laengsschnitt
FR2290975A1 (fr) * 1974-06-12 1976-06-11 Nippon Crucible Co Procede et dispositif pour fixer une piece rapportee a la plaque de base d'une lingotiere
DE2643009A1 (de) * 1976-09-24 1978-03-30 Odermath Gmbh Heinrich Einlegekoerper zum schutz der aufprallflaeche eines giesstrahls in einem metallurgischen gefaess
SU954152A1 (ru) * 1980-09-24 1982-08-30 Предприятие П/Я А-3681 Вкладыш дл поддона изложницы
GB2164281A (en) * 1984-09-18 1986-03-19 Dresser Ind Tundish with gas injection tile
EP0184634A1 (de) * 1984-11-28 1986-06-18 Lichtenberg Feuerfest Gmbh Pfanne zum Aufnehmen und ggf. Nachbehandeln und/oder Transportieren von heissen, flüssigen Metallen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, section M, semaine K27, no. 83-704459/27, 17 août 1983, Derwent Publications Ltd, Londres, GB; & SU-A-954 152 (S.I. ZHILEV) 30-08-1982 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021461A1 (en) * 1991-06-03 1992-12-10 Usx Engineers And Consultants, Inc. Tundish turbulence suppressor pad
TR26210A (tr) * 1991-06-03 1995-02-15 Uss Eng & Consult YüKLEME HUNISI ICINE BOSALTILACAK OLAN BIR ERIMIS METAL AKIMININ CARPMASINI KARSILAYABILMEK ICIN BIR YüKLEME HUNISININ ICINE MONTE EDILECEK SEKILDE YAPILMIS BIR BOSALTMA YATAGI.
NL1006304C2 (nl) * 1997-06-13 1998-12-15 Hoogovens Staal Bv Gietpijp.
WO1998056524A1 (en) * 1997-06-13 1998-12-17 Hoogovens Staal B.V. Casting nozzle
CN112317705A (zh) * 2021-01-04 2021-02-05 北京科技大学 锭模、冶炼系统和大锭型合金铸锭的生产方法

Also Published As

Publication number Publication date
BE1002866A5 (fr) 1991-07-09

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