EP0048641A1 - Vorrichtung zum Schützen geschmolzenen Metalls in Schieberverschlüssen - Google Patents

Vorrichtung zum Schützen geschmolzenen Metalls in Schieberverschlüssen Download PDF

Info

Publication number
EP0048641A1
EP0048641A1 EP81401315A EP81401315A EP0048641A1 EP 0048641 A1 EP0048641 A1 EP 0048641A1 EP 81401315 A EP81401315 A EP 81401315A EP 81401315 A EP81401315 A EP 81401315A EP 0048641 A1 EP0048641 A1 EP 0048641A1
Authority
EP
European Patent Office
Prior art keywords
gas
metal
nozzle
inert gas
aforementioned
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.)
Granted
Application number
EP81401315A
Other languages
English (en)
French (fr)
Other versions
EP0048641B1 (de
EP0048641B2 (de
Inventor
Albert-Gilbert Goursat
Thierry Hersant
Jacques Nicolas
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9245923&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0048641(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to AT81401315T priority Critical patent/ATE10915T1/de
Publication of EP0048641A1 publication Critical patent/EP0048641A1/de
Publication of EP0048641B1 publication Critical patent/EP0048641B1/de
Application granted granted Critical
Publication of EP0048641B2 publication Critical patent/EP0048641B2/de
Expired legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to the protection of the pouring jet of a molten metal contained in a container and passing through a plate shutter device comprising a fixed plate and a movable plate provided with at least one nozzle.
  • shutter devices control the opening and closing of the taphole of the container, pocket or distributor, the nozzle being able to come into communication with said taphole. They therefore make it possible to pour the molten metal, for example steel, into an ingot mold or the like.
  • the molten metal can be poured directly from the ladle into the ingot mold or, in the case of continuous casting, from the ladle into a distributor and then into the mold.
  • the two plates are made of a material resistant to high temperatures such as ceramic or impregnated or tarred alumina.
  • the movable plate can be sliding or rotary and be provided with a single nozzle or with several nozzles of different internal diameters. In the latter case, it is possible, by changing the nozzle, to modify the casting speed as a function, for example, of the height of the metal in the container.
  • the two plates can be applied against each other by means of a spring system provided with a cooling circuit.
  • the currently known shutter devices have numerous passage points for atmospheric air which is truly sucked in as a result of the depression caused by the flow of molten metal. These shutters increase the risk of occlusion of air bubbles in the metal during casting and therefore the risk of oxidation.
  • the places through which air penetrates to the metal are: the gap between the two opposite faces of the fixed and movable plates due to the play necessary for their relative movement; the connection zone between the nozzle (s) and the movable plate, in particular when the said nozzle (s) are mounted removably on said plate; the outlet end of the nozzle; the connection between the fixed plate and the container as well as, in the case of nozzles permanently mounted on the movable plate, the connection between said nozzle and said plate, these connections being made by masonry using a cement grout inherently not gas tight and which becomes more and more porous due to the cracks which appear with use.
  • the present invention aims to eliminate the aforementioned drawbacks and proposes for this purpose a method which consists in introducing into the shutter device, a gas practically inert with respect to the metal and having a pressure slightly higher than atmospheric pressure and to distribute this gas around the metal as it passes through said device so as to isolate it from ambient air by a continuous gaseous protection barrier.
  • this gas barrier being constituted by a gas that is practically inert with respect to the treated metal, that is to say devoid of chemical action on this metal, or at least of which the chemical action, if it exists , can be neglected, does not entail any risk of harming the quality of the final product.
  • the inert gas is introduced between the aforementioned plates and it is distributed around the metal by means of a groove hollowed out in one of the plates around a passage orifice passing through said plate.
  • the inert gas is introduced into the junction zone between the nozzle and the movable plate.
  • the invention also provides a plate shutter device comprising gas supply and distribution members connected to a source of gas that is practically inert with respect to the metal, these members forming a continuous envelope around the metal flowing in said metal. device, so as to create, between the metal and the ambient air, a gaseous protective barrier.
  • the abovementioned supply and distribution members may comprise at least one recess formed in at least one of the aforementioned plates and communicating with the gap between the faces in mutual contact of said plates.
  • the device 10 essentially comprises a fixed plate 11 and a movable plate 12 applied one against the other along their face 11a and 12a respectively by a spring system not shown, the movable plate 12 being rotatably mounted around an axis XX 'and carrying two nozzles 13, these nozzles being made, like the plates 11 and 12, of a material refractory, for example an impregnated alumina.
  • the plate 11 is crossed by an orifice 110, placed in alignment with the taphole 6, while the movable plate 12 is crossed by two passages such as 120 (only one is shown.
  • Each nozzle 13, crossed by an internal channel 130 (only one is shown), is provided with a metallic external breastplate 131 and permanently mounted on the plate 12 by means of the said leather 131 and a metallic support 121 secured to the said plate, so that its channel 130 is in alignment with the passage 120.
  • the plate 11 is provided with a recess constituted by a circular groove 111 hollowed out on its face 11a, concentric with the orifice 110, and consequently communicating with the gap 11a-12a between the two plates.
  • Two perpendicular conduits communicating with each other, 112 and 113, are drilled in the mass of the plate 11.
  • the conduit 113 opens directly into the groove 111 while the conduit 112 is connected, via a tube 14, to a pressurized inert gas source 20, provided with a pressure reducer 21.
  • the inert gas can be nitrogen, argon, a nitrogen-argon mixture or in the case of aluminum metallurgy for example , of C0 2 .
  • the groove 111 as well as the conduits 112 and 113 therefore constitute organs for supplying and distributing the gas delivered by the source 20, this gas forming, between the two plates 11 and 12 and around the channel formed by the orifices 6, 110 , 120 and 130, a gas barrier that prevents ambient air from reaching the flowing metal.
  • the movable plate 12 which is provided with a recess constituted by a circular groove 122 hollowed out on its face 12a concentrically with the passage 120 and thereby communicating with the gap 11a-12a.
  • Two perpendicular conduits communicating with each other 123 and 124 are drilled in the mass of the plate 12. The conduit 124 opens directly into the groove 122 while the conduit 123 is connected, via a tube 125, to the source 20.
  • each of these passages may be provided with a groove such as 122, or a single groove may be provided surrounding all of the passages :
  • the nozzle 14, the central channel of which is designated by 140, is, unlike the nozzles 13 in FIG. 1, removably mounted on the plate 12, this thanks to an appropriate system of known type, for example with bayonet .
  • the breastplate 141 of the nozzle 14 and the ring 142 carried on the support 121 are provided with latching means (not shown) which allow the nozzle to be held on the plate.
  • a channel 126 is drilled in the plate 12 perpendicular to the conduit 123 and communicating with the latter, this channel 126 opening into the zone of junction 127 between nozzle and plate. Under these conditions, the inert gas fills the zone 127 thus creating a protective barrier around the flowing metal.
  • the pressure of the inert gas is adjusted by means of the regulator 21, so as to obtain, in the grooves 111 or 122, an overpressure of a few millimeters of water relative to the local atmospheric pressure.
  • a gaseous protective barrier is also created at the lower end of the nozzle 14, that is to say at the outlet of the liquid metal jet.
  • the inert gas supply and distribution members comprise, in this case, an annular distributor constituted by a porous ring of refractory material 144 housed in a recess 145 formed at the outlet of the nozzle 14, this ring being connected, by a tubing 146, at source 20.
  • the flow of inert gas from the ring 144 makes it possible to compensate for the depression caused by the emergence at high speed of the metal jet and prevents atmospheric air from reaching said metal.
  • FIG. 3 A first alternative embodiment of the gaseous protective barrier at the outlet opening of the nozzle is shown in Figures 3 and 4.
  • the nozzle 15, provided with a central channel 150 and a breastplate 151 comprises, at its lower part, an annular groove 152 into which tangentially opens a tube 153 connected to a source of inert gas under pressure (not shown). Between this groove 152 and the lower end of the nozzle, the refractory material has a smaller thickness, thus providing a channel 154 extending the channel 150 but having a larger diameter.
  • the nozzle 16 provided with a central channel 160 and a breastplate 161 , comprises, at its lower part, a distributor constituted by a metallic flange 162 in the form of a trough which is extended, in the direction of the outlet end of said nozzle, a sleeve also metallic 163 which forms a coating on the armor 161, the nozzle being deprived, in this part, of refractory material.
  • a distributor constituted by a metallic flange 162 in the form of a trough which is extended, in the direction of the outlet end of said nozzle, a sleeve also metallic 163 which forms a coating on the armor 161, the nozzle being deprived, in this part, of refractory material.
  • a tube 164 connected to a source of inert gas in liquefied form (not shown) and delivering said gas in the liquid phase.
  • the collar 162 and the sleeve 163 are metallic, for example made of mild steel, has the consequence of facilitating the transmission of calories from the metal jet and consequently of accelerating the passage from liquid phase to gaseous phase, the latter forming the desired protective barrier.
  • the flow rate of the liquefied gas can be adjusted so that only a part is vaporized in the collar 162.
  • the excess liquid phase then flows along the jet of metal and is spreads over the surface of the bath, forming a protective liquid layer.
  • the device 10 is provided with a metal casing or cover 17 which is mounted in leaktight manner on the bottom of the container and which almost completely envelops said device, only an opening 170 being provided at its lower part for the passage of the nozzles 13 and the flow of the metallic jet.
  • This housing 17 is supplied with inert gas under pressure from a source (not shown) such as the previous source 20, and maintains, around the device 10, an atmosphere which constitutes an effective protective barrier against atmospheric air. The gas escapes through the opening 170 thus forming, around the nozzles and the metal jet, an inert gas flow.
  • This housing also protects the device 10 against metal splashes.
  • the device 10 being assumed to have no spring system for holding the plates 11 and 12 against each other, therefore a cooling circuit, the inert gas is brought directly inside the housing 17 by a tube 171 integral with the latter.
  • the device 10 is assumed to be equipped with a spring system associated with a compressed air cooling circuit.
  • This spring system represented schematically and designated by the reference 18, comprises a stop 181 in the form of an inverted cup open at its lower end and integral with the plate 12, a support piece 182 in the form of a piston integral with the plate 11 and a spring 183 interposed between the stop 181 and the part 182.
  • a tube 184 allows the supply of compressed cooling air into the stop 181, this air circulating, by conduits not shown, in the other identical elements of the system to springs.
  • the tube 184 is connected not to a source of compressed air, but to the source of pressurized inert gas, so that the housing 17 is supplied via the cooling circuit of the spring system.
  • the housing 17 is provided with an orifice 172 for the passage of the tubing 184.
  • the grooves 111 and 122 of the fixed plate 11 and the movable plate 12 could have a shape other than circular, for example elliptical.
  • the groove 152 and in the collar 162 of the nozzles 15 and 16 respectively could tangentially open several pipes such as 153 and 164 instead of just one.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP81401315A 1980-09-15 1981-08-18 Vorrichtung zum Schützen geschmolzenen Metalls in Schieberverschlüssen Expired EP0048641B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401315T ATE10915T1 (de) 1980-09-15 1981-08-18 Vorrichtung zum schuetzen geschmolzenen metalls in schieberverschluessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8019837A FR2490123A1 (fr) 1980-09-15 1980-09-15 Dispositif obturateur a plaques pour trous de coulee de recipient contenant un metal en fusion
FR8019837 1980-09-15

Publications (3)

Publication Number Publication Date
EP0048641A1 true EP0048641A1 (de) 1982-03-31
EP0048641B1 EP0048641B1 (de) 1984-12-27
EP0048641B2 EP0048641B2 (de) 1989-09-20

Family

ID=9245923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401315A Expired EP0048641B2 (de) 1980-09-15 1981-08-18 Vorrichtung zum Schützen geschmolzenen Metalls in Schieberverschlüssen

Country Status (10)

Country Link
US (1) US4480770A (de)
EP (1) EP0048641B2 (de)
JP (1) JPS5752564A (de)
AR (1) AR225364A1 (de)
AT (1) ATE10915T1 (de)
AU (1) AU543563B2 (de)
CA (1) CA1186146A (de)
DE (1) DE3167942D1 (de)
FR (1) FR2490123A1 (de)
ZA (1) ZA815454B (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089282A1 (de) * 1982-03-15 1983-09-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Verfahren und Vorrichtung zum Schutz eines Giessstrahls aus flüssigem Metall
FR2529811A1 (fr) * 1982-07-12 1984-01-13 Didier Werke Ag Fermeture pour un recipient renfermant une masse metallique fondue liquide, notamment fermeture a tiroir pour poche de coulee
FR2530167A1 (fr) * 1982-07-13 1984-01-20 Air Liquide Procede et installation de protection d'un jet de coulee de metal liquide
DE3406076A1 (de) * 1983-11-02 1985-05-09 Toshiba Ceramics Co., Ltd., Tokio/Tokyo Vorrichtung zum austragen von geschmolzenem metall
DE3406075A1 (de) * 1983-11-02 1985-05-09 Sumitomo Metal Industries, Ltd., Osaka Vorrichtung zum austragen von geschmolzenem metall
DE3342071A1 (de) * 1983-11-22 1985-06-05 Didier-Werke Ag, 6200 Wiesbaden Vorrichtung zum abschirmen eines metallischen giessstrahls
FR2564958A1 (fr) * 1984-05-23 1985-11-29 Stopinc Ag Fermeture a coulisse tournante, pour cuves ou recipients metallurgiques
EP0171589A1 (de) * 1984-07-18 1986-02-19 RADEX ITALIANA S.p.A. Sammlerausguss in einer Vorrichtung zum Kontrollieren des Ausflusses von flüssigem Stahl aus einer Pfanne oder eines Zwischengefässes
US4586249A (en) * 1983-12-30 1986-05-06 Westinghouse Electric Corp. Mandrel having an eddy current probe
US4649493A (en) * 1983-12-30 1987-03-10 Westinghouse Electric Corp. Tube expansion apparatus
BE1001239A3 (fr) * 1987-12-03 1989-08-29 Vesuvius Internat Corp Procede pour rendre etanche a l'air une fermeture coulissante et plaque refractaire d'usure prevue a cet effet.
EP0446406A1 (de) * 1990-03-13 1991-09-18 Zimmermann & Jansen GmbH Schieberverschluss für ein metallurgisches Giessgefäss, insbesondere eine Giesspfanne
EP0483521A1 (de) * 1990-10-31 1992-05-06 Didier-Werke Ag Verbindung zwischen Ausguss und Giessrohr an metallurgischen Gefässen
WO1992020480A1 (fr) * 1991-05-21 1992-11-26 International Industrial Engineering S.A. Ceinture d'etancheite d'un tube de coulee
FR2695335A1 (fr) * 1992-09-09 1994-03-11 Lorraine Laminage Tiroir linéaire de poche à acier.
BE1006006A3 (fr) * 1990-12-19 1994-04-19 Int Ind Eng Sa Piece refractaire pour trou de coulee d'un recipient siderurgique.
WO1998017421A1 (en) * 1996-10-17 1998-04-30 Vesuvius Crucible Company Plant for transferring liquid metal, method of operation, and refractories
FR2757431A1 (fr) * 1996-12-20 1998-06-26 Vesuvius France Sa Installation de transfert de metal liquide, procede de mise en oeuvre, et refractaires

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506426C1 (de) * 1985-02-23 1985-11-28 Stopinc Ag, Baar Verfahren zum Abgiessen von Metallschmelze aus einem ein Absperrorgan aufweisenden Behaelter
US4887748A (en) * 1986-12-29 1989-12-19 J. W. Hicks, Inc. Apparatus and method for attachment of submerged nozzle to lower plate of sliding gate valve mechanism for a continuous casting operation
US4949885A (en) * 1989-02-23 1990-08-21 Inland Steel Company Apparatus and method for containing inert gas around molten metal stream
US5067552A (en) * 1989-07-26 1991-11-26 Ltv Steel Company, Inc. Shrouding for top pouring of ingots
FR2684980B1 (fr) * 1991-12-16 1994-03-18 Kodak Pathe Procede de decomposition organometallique pour preparer un borate metallique.
JPH06310993A (ja) * 1993-04-21 1994-11-04 Aruinko Kk 受信機の表示装置
JP2575587B2 (ja) * 1993-04-21 1997-01-29 アルインコ株式会社 受信機の表示装置
US6228187B1 (en) 1998-08-19 2001-05-08 Air Liquide America Corp. Apparatus and methods for generating an artificial atmosphere for the heat treating of materials
US6491863B2 (en) 2000-12-12 2002-12-10 L'air Liquide-Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes George Claude Method and apparatus for efficient utilization of a cryogen for inert cover in metals melting furnaces
KR20090077943A (ko) * 2006-11-08 2009-07-16 스토핑크 아크티엔게젤샤프트 로킹 유닛 및 보호 캡을 포함하는 비철금속 용융 금속용 컨테이너 장치
KR101541138B1 (ko) 2008-12-16 2015-08-03 주식회사 동진쎄미켐 액정 화합물 및 그 제조방법
JP6733854B1 (ja) * 2019-01-30 2020-08-05 Ｊｆｅスチール株式会社 スライディングノズル装置の制御方法及び鋳片の製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH387883A (de) * 1959-10-13 1965-02-15 Beteiligungs & Patentverw Gmbh Giessvorrichtung
FR2227073A1 (de) * 1973-04-27 1974-11-22 Didier Werke Ag
FR2252157A1 (de) * 1973-11-23 1975-06-20 Uss Eng & Consult
US4131219A (en) * 1976-08-03 1978-12-26 United States Steel Corporation Pouring of molten metals
FR2395095A1 (fr) * 1977-06-24 1979-01-19 Detalle Pol Perfectionnements aux obturateurs a tiroir pour poches de coulee ou autres recipients de metal en fusion presentant un trou de coulee
FR2396611A1 (fr) * 1977-07-09 1979-02-02 Didier Werke Ag Brique moulee de sortie de coulee et procede pour sa fabrication
FR2403852A1 (fr) * 1977-09-22 1979-04-20 Air Liquide Procede et dispositif de protection d'un jet de coulee verticale de metal fondu au moyen d'un gaz inerte liquefie

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673039A (en) * 1971-01-20 1972-06-27 Southwire Co Method of preparing pouring spout
SU458382A1 (ru) * 1972-11-20 1975-01-30 Новолипецкий Металлургический Завод Сталеразливочный стакан
US3946907A (en) * 1973-11-02 1976-03-30 Fried. Krupp Huttenwerke Ag Vacuum sealing for the discharge nozzle of a casting ladle serving as a vacuum container
GB1492534A (en) * 1974-11-04 1977-11-23 Flogates Ltd Pouring of metals
JPS5420938A (en) * 1977-07-15 1979-02-16 Kawasaki Steel Co Winding method of hot strip
US4199087A (en) * 1978-01-25 1980-04-22 United States Steel Corporation Apparatus for injection of inert gas to prevent superspeed effect
AT368415B (de) * 1979-02-20 1982-10-11 Voest Alpine Ag Einrichtung an einem metallurgischen gefaess mit einem schutzrohr

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH387883A (de) * 1959-10-13 1965-02-15 Beteiligungs & Patentverw Gmbh Giessvorrichtung
FR2227073A1 (de) * 1973-04-27 1974-11-22 Didier Werke Ag
FR2252157A1 (de) * 1973-11-23 1975-06-20 Uss Eng & Consult
US4131219A (en) * 1976-08-03 1978-12-26 United States Steel Corporation Pouring of molten metals
FR2395095A1 (fr) * 1977-06-24 1979-01-19 Detalle Pol Perfectionnements aux obturateurs a tiroir pour poches de coulee ou autres recipients de metal en fusion presentant un trou de coulee
FR2396611A1 (fr) * 1977-07-09 1979-02-02 Didier Werke Ag Brique moulee de sortie de coulee et procede pour sa fabrication
FR2403852A1 (fr) * 1977-09-22 1979-04-20 Air Liquide Procede et dispositif de protection d'un jet de coulee verticale de metal fondu au moyen d'un gaz inerte liquefie

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089282A1 (de) * 1982-03-15 1983-09-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Verfahren und Vorrichtung zum Schutz eines Giessstrahls aus flüssigem Metall
FR2529811A1 (fr) * 1982-07-12 1984-01-13 Didier Werke Ag Fermeture pour un recipient renfermant une masse metallique fondue liquide, notamment fermeture a tiroir pour poche de coulee
USRE33036E (en) * 1982-07-12 1989-08-29 Didier-Werke Ag Closure mechanism with gas seal
FR2530167A1 (fr) * 1982-07-13 1984-01-20 Air Liquide Procede et installation de protection d'un jet de coulee de metal liquide
DE3406076A1 (de) * 1983-11-02 1985-05-09 Toshiba Ceramics Co., Ltd., Tokio/Tokyo Vorrichtung zum austragen von geschmolzenem metall
DE3406075A1 (de) * 1983-11-02 1985-05-09 Sumitomo Metal Industries, Ltd., Osaka Vorrichtung zum austragen von geschmolzenem metall
DE3342071A1 (de) * 1983-11-22 1985-06-05 Didier-Werke Ag, 6200 Wiesbaden Vorrichtung zum abschirmen eines metallischen giessstrahls
US4586249A (en) * 1983-12-30 1986-05-06 Westinghouse Electric Corp. Mandrel having an eddy current probe
US4649493A (en) * 1983-12-30 1987-03-10 Westinghouse Electric Corp. Tube expansion apparatus
FR2564958A1 (fr) * 1984-05-23 1985-11-29 Stopinc Ag Fermeture a coulisse tournante, pour cuves ou recipients metallurgiques
EP0171589A1 (de) * 1984-07-18 1986-02-19 RADEX ITALIANA S.p.A. Sammlerausguss in einer Vorrichtung zum Kontrollieren des Ausflusses von flüssigem Stahl aus einer Pfanne oder eines Zwischengefässes
BE1001239A3 (fr) * 1987-12-03 1989-08-29 Vesuvius Internat Corp Procede pour rendre etanche a l'air une fermeture coulissante et plaque refractaire d'usure prevue a cet effet.
EP0446406A1 (de) * 1990-03-13 1991-09-18 Zimmermann & Jansen GmbH Schieberverschluss für ein metallurgisches Giessgefäss, insbesondere eine Giesspfanne
EP0483521A1 (de) * 1990-10-31 1992-05-06 Didier-Werke Ag Verbindung zwischen Ausguss und Giessrohr an metallurgischen Gefässen
BE1006006A3 (fr) * 1990-12-19 1994-04-19 Int Ind Eng Sa Piece refractaire pour trou de coulee d'un recipient siderurgique.
WO1992020480A1 (fr) * 1991-05-21 1992-11-26 International Industrial Engineering S.A. Ceinture d'etancheite d'un tube de coulee
BE1004804A4 (fr) * 1991-05-21 1993-02-02 Internat Ind Engineering S A Ceinture d'etancheite d'un tube de coulee.
US5390902A (en) * 1991-05-21 1995-02-21 International Industrial Engineering S.A. Belt for sealing a pouring tube
FR2695335A1 (fr) * 1992-09-09 1994-03-11 Lorraine Laminage Tiroir linéaire de poche à acier.
EP0587485A1 (de) * 1992-09-09 1994-03-16 Sollac Schieberverschluss für Stahlgiesspfanne
WO1998017421A1 (en) * 1996-10-17 1998-04-30 Vesuvius Crucible Company Plant for transferring liquid metal, method of operation, and refractories
WO1998017420A1 (en) * 1996-10-17 1998-04-30 Vesuvius Crucible Company Refractory assemblies
EA000604B1 (ru) * 1996-10-17 1999-12-29 Везувиус Крусибл Компани Огнеупорныйблок
EA000774B1 (ru) * 1996-10-17 2000-04-24 Везувиус Крусибл Компани Установка для перемещения жидкого металла и способ организации ее работы
FR2757431A1 (fr) * 1996-12-20 1998-06-26 Vesuvius France Sa Installation de transfert de metal liquide, procede de mise en oeuvre, et refractaires

Also Published As

Publication number Publication date
CA1186146A (fr) 1985-04-30
EP0048641B1 (de) 1984-12-27
FR2490123B1 (de) 1983-12-09
ZA815454B (en) 1982-07-28
FR2490123A1 (fr) 1982-03-19
AR225364A1 (es) 1982-03-15
JPS5752564A (en) 1982-03-29
AU7389881A (en) 1982-03-25
AU543563B2 (en) 1985-04-26
DE3167942D1 (en) 1985-02-07
US4480770A (en) 1984-11-06
ATE10915T1 (de) 1985-01-15
EP0048641B2 (de) 1989-09-20

Similar Documents

Publication Publication Date Title
EP0048641B1 (de) Vorrichtung zum Schützen geschmolzenen Metalls in Schieberverschlüssen
EP0269180B1 (de) Vorrichtung zum Giessen eines pastenartigen Metalles
EP0094926B1 (de) Mündung zum Einführen eines Schutzgases in ein Giessrohr
FR2529811A1 (fr) Fermeture pour un recipient renfermant une masse metallique fondue liquide, notamment fermeture a tiroir pour poche de coulee
EP0089282B1 (de) Verfahren und Vorrichtung zum Schutz eines Giessstrahls aus flüssigem Metall
EP0404641B1 (de) Verteiler zum Stranggiessen von Stahl
EP0305426B1 (de) Verfahren und vorrichtung zum giessen von flüssigem metall
FR2551374A1 (fr) Dispositif pour plaques refractaires d'obturateurs coulissants
EP0213042B1 (de) Vorrichtung zum Schutz eines flüssigen Giesstrahls gegen Oxydation und/oder Nitrierung
EP0589762B1 (de) Giessrohr für Metall und Verfahren zu seiner Herstellung
FR2629101A1 (fr) Brique pour l'introduction de gaz ou de produits de reaction dans un recipient de coulee metallurgique
FR2728491A1 (fr) Dispositif de coulee d'un metal liquide avec injection d'un gaz inerte dans le metal liquide en cours de coulee
EP0327526B1 (de) Vorrichtung zum Kühlen eines Metalls während des Giessens
EP0242347A2 (de) Vorrichtung zum Giessen einer flüssig-festen Mischung
EP0498684B1 (de) Ausstosseinrichtung für eine Giessschutzrohr-Trageinrichtung in eine Stranggiessvorrichtung
CA1206752A (fr) Procede et dispositif pour vidanger des recipients metallurgiques
BE1004282A6 (fr) Dispositif de prechauffage d'une busette de coulee d'un metal en fusion et installation de coulee d'un metal equipee de ce dispositif.
EP0282824A2 (de) Vorrichtung zum Entleeren von metallurgischen Gefässen
BE1013748A3 (fr) Dispositif pour la coulee continue directe de l'acier.
BE1001778A3 (fr) Dispositif d'obturation a cle tournante.
BE1012319A3 (fr) Organe de coulee.
LU86395A1 (fr) Dispositif et procede pour la coulee continue de l'acier
BE891379A (fr) Procede pour rendre etanche a l'air un dispositif d'obturation d'une poche de coulee et dispositif prevu a cet effet
BE381936A (de)
FR2682900A3 (en) Nozzle for the continuous casting of liquid metal, especially steel, into a mould and device incorporating this nozzle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19820617

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 10915

Country of ref document: AT

Date of ref document: 19850115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3167942

Country of ref document: DE

Date of ref document: 19850207

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: DIDIER-WERKE AG

Effective date: 19850927

Opponent name: MARTIN & PAGENSTECHER GMBH

Effective date: 19850926

Opponent name: ZIMMERMANN & JANSEN GMBH

Effective date: 19850927

NLR1 Nl: opposition has been filed with the epo

Opponent name: DIDIER-WERKE AG

Opponent name: MARTIN & PAGENSTECHER GMBH

Opponent name: ZIMMERMANN & JANSEN GMBH

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19890920

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE FR GB IT LU NL SE

ITF It: translation for a ep patent filed
NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910708

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910709

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910712

Year of fee payment: 11

Ref country code: GB

Payment date: 19910712

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910716

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910729

Year of fee payment: 11

Ref country code: DE

Payment date: 19910729

Year of fee payment: 11

Ref country code: BE

Payment date: 19910729

Year of fee payment: 11

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910831

Year of fee payment: 11

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920818

Ref country code: GB

Effective date: 19920818

Ref country code: AT

Effective date: 19920818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920831

Ref country code: CH

Effective date: 19920831

Ref country code: BE

Effective date: 19920831

BERE Be: lapsed

Owner name: L' AIR LIQUIDE S.A. POUR L'ETUDE ET L'EXPLOITATION

Effective date: 19920831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920818

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81401315.7

Effective date: 19930307

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO