EP0369147B1 - Sealing for refractory components containing metallic melt - Google Patents
Sealing for refractory components containing metallic melt Download PDFInfo
- Publication number
- EP0369147B1 EP0369147B1 EP89118291A EP89118291A EP0369147B1 EP 0369147 B1 EP0369147 B1 EP 0369147B1 EP 89118291 A EP89118291 A EP 89118291A EP 89118291 A EP89118291 A EP 89118291A EP 0369147 B1 EP0369147 B1 EP 0369147B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- sealing
- split spring
- spring ring
- components
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000000155 melt Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002557 mineral fiber Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B22D41/50—Pouring-nozzles
- B22D41/502—Connection arrangements; Sealing means 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
- B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
-
- 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
Definitions
- the invention relates to a seal for refractory, metallic melt leading components, in particular for tubular components used on spouts of metallurgical vessels, which engage in one another in a sealed manner and are individually replaceable.
- Interlocking metallic melt-guiding components such as a pouring tube, which is connected to the outlet of an outlet closure for metallurgical vessels, are usually sealed by means of a flexible, elastically yielding end face seal.
- the object of the present invention is to improve the seal on intermeshing, melt-carrying components with simple means with the aim of eliminating the difficulties outlined and, above all, preventing fluid flows in the seal area.
- the object is achieved according to the invention in that in the sealing area at least on one of the interlocking components at least one in one An annular spring bearing ring groove and an overlap at the open ends is arranged, which rests radially resiliently against the other component.
- the clearance fit or the clearance between the two components for the flow of media is effectively shut off, so that the melt flow can neither suck in air from the outside nor melt itself can get between the components.
- the clearance fit can be selected so that the components can easily be mutually adjusted under operating conditions.
- a dense ceramic material preferably an oxide ceramic material and in particular zirconium oxide, is suitable as the material for the production of the ceramic spring ring.
- 1 and 2 denote two tubular, interlocking refractory components for conveying metallic melt. Between the two components 1 and 2 there is a clearance fit 3, the clearance between them based on the respective application.
- the components 1 and 2 are designed to form a releasable refractory seal, possibly with parts 1 and 2 which are movable under operating conditions.
- an open ceramic spring ring 4 with a radial cross-section in the spring force is arranged in a circumferential ring groove 5 of the inner component 2.
- the spring ring 4 has a fold-like overlap 6, which is transverse to the ring thickness, with free spaces 7 that compensate for the spring travel, so that the peripheral surface of the spring ring 4 acting as a sealing surface 8 lies sealingly against the inner surface 9 of the outer component 1, as a result of which fluid leaks through the clearance fit 3 do not come about.
- the sealing surface 8 of the spring ring 4 and the counter-sealing area of the inner surface 9 of the outer component 1 can be finished; the inner surface 9 as far as possible to the insertion end of the component 1 in order to facilitate the joining and detaching of the components 1 and 2.
- a spring ring 4 is used, similar to a piston ring, which in the relaxed state has open spaces 7 which close proportionally when loaded.
- the seal according to FIG. 4 is equipped with a spring ring 10 which is closed in the tension-free state and which is supported in an annular groove 5 of the outer component 1 and with its inner sealing surface 11 opposite seals the outer surface 12 of the inner member 2 while the overlapped ends open under load.
- a combination application of both spring washers 4 and 10 in annular grooves 5 has the seal of two inner components 2 abutting one another on the end face within an outer component 1 according to FIG. 5.
- One of the spring washers 4 and 10 is arranged on one side of the joint 13 of the two inner components 2 held together by means of an elastic mineral fiber seal 14 and is surrounded by the outer component 1.
- This has a radial bore 15 between the spring washers 4 and 10 with a fluid connection 16 for supplying, for example, a sealing gas in the region of the clearance 3 between the spring washers 4 and 10.
- Such seals with an additional fluid connection 16 can be used on melt feeds of horizontal continuous casting plants be required to prevent air from entering the melt stream.
- the seal of the air fit in the clearance 3 serves the same purpose as shown in FIG. 6 on the cone connection between the lower plate 17 of one of the slide closures (not shown for the sake of simplicity) and a pouring spout 18.
- the spring ring 19 used there shown enlarged in FIG unclamped state is largely closed, rests in an inner annular groove 20 of the head of the pouring spout 18 and lies with its conical sealing surface 21 on the connecting cone 22 of the lower plate 17, between which opposite flat surfaces of the connecting cone 22 and the pouring tube head, an elastic mineral fiber seal 23 can also be provided.
- FIG. 8 illustrates an application example of a pouring closure for metallurgical vessels, which has a non-rotatable pouring part 25 arranged vertically in the bottom 24 of the vessel, through which melt 27 flows out via transverse bores 26 from the inside of the vessel as soon as corresponding bores 28 in an outer component which can be adjusted about the axis 29 30 are more or less congruent.
- This component 30, which is designed as a turned part, is placed over the pouring part 25 in a pot-like manner and carries on the inside in annular grooves 31 spring washers 32 which bear against the peripheral surface 33 of the inner pouring part 25 and shield the clearance fit 3 against a flow of the melt 27.
- the spring washers 32 serve as a guide for the outer component 30 when the latter is rotated about the axis 29 for the purpose of regulating the melt flow.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Charging Or Discharging (AREA)
- Gasket Seals (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Nonmetallic Welding Materials (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Ceramic Products (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Dichtung für feuerfeste, metallische Schmelze führende Bauteile, insbesondere für an Ausgüssen metallurgischer Gefäße verwendete rohrförmige Bauteile, die abgedichtet ineinandergreifen und einzeln austauschbar sind.The invention relates to a seal for refractory, metallic melt leading components, in particular for tubular components used on spouts of metallurgical vessels, which engage in one another in a sealed manner and are individually replaceable.
Üblicherweise werden ineinandergreifende, metallische Schmelze führende Bauteile, wie beispielsweise ein Gießrohr, das an den Auslauf eines Auslaufverschlusses für metallurgische Gefäße übergreifend angeschlossen wird, mittels einer flexiblen, elastisch nachgebenden Stirnflächendichtung abgedichtet. Hierbei ist zwischen den beiden konisch oder zylindrisch ineinandergreifenden Bauteilen meistenfalls eine Spielpassung vorhanden, die unter dem Anschlußdruck des Gießrohres an den Auslauf bei Betriebsbedingungen abdichtend wirken soll. Dies gelingt nicht zufriedenstellend, weil die hohem Temperaturwechsel ausgesetzten Bauteile vergleichsweise wenig Anschlußdruck aushalten und sich verziehen, so daß über die Spielpassung und die Stirnflächendichtung schon bald Luft in den Schmelzestrom gelangt und beispielsweise durchfließender Stahl reoxidiert wird. Ähnliche Probleme gibt es an den abgedichteten Stoßstellen von feuerfesten Rohrbauteilen, die Schmelze vom Ausguß eines metallurgischen Gefäßes zur Düse einer Horizontalstranggießanlage leiten. Ferner ist es bei Ausgußverschlüssen, bei denen der Schmelzefluß mittels Durchbrechungen zweier konzentrisch und gegeneinander beweglich angeordneten, in die Schmelze des Gefäßes hineinragenden Rohren regelbar ist, problematisch, die Rohre mit Hilfe einer Spielpassung wirksam so gegeneinander abzudichten, daß eines oder beide Rohre ohne Komplikationen längs- und/oder drehverstellt werden können. Einerseits soll die Passung das Eindringen von Schmelze zwischen die Rohre verhindern, andererseits soll es aber auch kein Klemmen der Rohre bei unterschiedlichen Wärmedehnungen geben.Interlocking metallic melt-guiding components, such as a pouring tube, which is connected to the outlet of an outlet closure for metallurgical vessels, are usually sealed by means of a flexible, elastically yielding end face seal. There is usually a clearance fit between the two conically or cylindrically interlocking components, which is to act as a seal under the connection pressure of the pouring tube to the outlet under operating conditions. This is not satisfactory because the components exposed to high temperature changes have comparatively little connection pressure endure and warp, so that air soon gets into the melt stream via the clearance fit and the end face seal and steel that flows through, for example, is reoxidized. Similar problems exist at the sealed joints of refractory pipe components that conduct melt from the pouring of a metallurgical vessel to the nozzle of a horizontal continuous caster. Furthermore, with pouring closures in which the melt flow can be regulated by perforations of two concentrically arranged and mutually movable tubes projecting into the melt of the vessel, it is problematic to effectively seal the tubes against one another with the aid of a clearance fit such that one or both tubes are longitudinal along without complications - And / or can be rotated. On the one hand, the fit is intended to prevent melt from penetrating between the pipes, but on the other hand, there should also be no jamming of the pipes with different thermal expansions.
Aufgabe vorliegender Erfindung ist es, mit einfachen Mitteln die Dichtung an ineinandergreifenden, schmelzeführenden Bauteilen zu verbessern mit dem Ziel, die aufgezeigten Schwierigkeiten zu beheben und vor allem Fluid-Strömungen im Dichtungsbereich zu verhindern.The object of the present invention is to improve the seal on intermeshing, melt-carrying components with simple means with the aim of eliminating the difficulties outlined and, above all, preventing fluid flows in the seal area.
Die gestellte Aufgabe wird gemäß der Erfindung dadurch gelöst, daß im Dichtungsbereich wenigstens an einem der ineinandergreifenden Bauteile mindestens ein in einer Ringnut lagernder und an den offenen Enden eine Überlappung aufweisender Federring angeordnet ist, der radial federnd am anderen Bauteil dichtend anliegt. Dadurch wird die Spielpassung bzw. der Spielraum zwischen beiden Bauteilen für den Durchfluß von Medien wirksam abgesperrt, so daß der Schmelzestrom weder Luft von außen ansaugen noch Schmelze selbst zwischen die Bauteile gelangen kann. Darüberhinaus kann im Bedarfsfalle die Spielpassung so gewählt werden, daß sich die Bauteile unter Betriebsbedingungen leicht gegenseitig verstellen lassen.The object is achieved according to the invention in that in the sealing area at least on one of the interlocking components at least one in one An annular spring bearing ring groove and an overlap at the open ends is arranged, which rests radially resiliently against the other component. As a result, the clearance fit or the clearance between the two components for the flow of media is effectively shut off, so that the melt flow can neither suck in air from the outside nor melt itself can get between the components. In addition, if necessary, the clearance fit can be selected so that the components can easily be mutually adjusted under operating conditions.
In jedem Fall ist es in näherer Ausbildung der Dichtung zweckmäßig, der Ringnut und dem Federring einen rechteckigen Querschnitt zu geben und die Überlappung an den offenen Enden falzartig auszubilden. Diese Ringkonstruktion hat an sich schon hervorragende Abdichtwirkung, die durch Anordnung mehrerer Federringe im Abstand voneinander gesteigert werden kann. Gegebenenfalls ist es auch vorteilhaft, zwischen zwei mit Abstand angeordneten Federringen einen Anschluß zum Einführen eines dichtenden und/oder kühlenden Mediums, beispielsweise eines mit erhöhtem Druck eingeführtes Inertgases vorzusehen, was die Effizienz der Dichtung weiter erhöht. Hierzu vermag auch der Vorschlag beizutragen, die Dichtungsfläche des Federringes und die korrespondierende Dichtungsfläche des Bauteils feinzubearbeiten.In any case, in a closer design of the seal, it is expedient to give the annular groove and the spring ring a rectangular cross section and to form the overlap at the open ends in a fold-like manner. This ring construction itself has an excellent sealing effect, which can be increased by arranging several spring rings at a distance from one another. It may also be advantageous to provide a connection for introducing a sealing and / or cooling medium, for example an inert gas introduced with increased pressure, between two spring rings arranged at a distance, which further increases the efficiency of the seal. The suggestion to finish the sealing surface of the spring ring and the corresponding sealing surface of the component can also contribute to this.
Als Material für die Herstellung des keramischen Federringes bietet sich ein dichtes keramisches Material, vorzugsweise ein oxidkeramisches Material und insbesondere Zirkonoxid an.A dense ceramic material, preferably an oxide ceramic material and in particular zirconium oxide, is suitable as the material for the production of the ceramic spring ring.
Die Erfindung ist nachstehend an mehreren Ausführungsbeispielen anhand der schematischen Zeichnung erläutert. Darin zeigen
- Fig. 1
- eine Vertikalschnittdarstellung mit zwei ineinandergreifenden feuerfesten Bauteilen mit einer Dichtung in einem ersten Ausführungsbeispiel,
- Fig. 2
- die Seitenansicht des Federringes nach
Figur 1, - Fig. 3
- die Draufsicht auf
Figur 2, - Fig. 4 und 5
- weitere Ausführungen der Federringdichtung in ähnlicher Darstellungsweise wie in
Figur 1, - Fig. 6
- ein weiteres Anwendungsbeispiel der Federringdichtung, im Schnitt,
- Fig. 7
- den Federring nach Fig. 6 in größerem Maßstab, und
- Fig. 8
- ein weiteres Anwendungsbeispiel, ebenfalls in geschnittener Darstellung.
- Fig. 1
- 2 shows a vertical sectional view with two interlocking refractory components with a seal in a first exemplary embodiment,
- Fig. 2
- the side view of the spring ring according to Figure 1,
- Fig. 3
- the top view of Figure 2,
- 4 and 5
- further designs of the spring ring seal in a representation similar to that in FIG. 1,
- Fig. 6
- another application example of the spring ring seal, in section,
- Fig. 7
- 6 on a larger scale, and
- Fig. 8
- another application example, also in a sectional view.
In der Zeichnung sind mit 1 und 2 zwei rohrförmige, ineinandergreifende feuerfeste Bauteile zum Befördern metallischer Schmelze bezeichnet. Zwischen beiden Bauteilen 1 und 2 ist eine Spielpassung 3 vorhanden, deren Spiel sich an dem jeweiligen Anwendungsfall orientiert. Die Bauteile 1 und 2 sind zu einer lösbaren feuerfesten Dichtung, gegebenfalls mit unter Betriebsbedingungen beweglichen Teilen 1 und 2, ausgebildet.In the drawing, 1 and 2 denote two tubular, interlocking refractory components for conveying metallic melt. Between the two
Gemäß der in Fig. 1 bis 3 gezeigten Dichtung ist zwecks Abdichtung der Spielpassung 3 nach außerhalb ein offener, in der Federkraft radial wirkender, keramischer Federring 4 rechteckigen Querschnitts in einer Umfangsringnut 5 des inneren Bauteils 2 angeordnet. An den offenen Enden hat der Federring 4 eine zur Ringdicke quere falzartige Überlappung 6 mit den Federweg kompensierenden Freiräumen 7, so daß die als Dichtungsfläche 8 wirkende Umfangsfläche des Federringes 4 an der Innenfläche 9 des äußeren Bauteils 1 abdichtend anliegt, wodurch Fluidleckagen durch die Spielpassung 3 nicht zustande kommen. Zur besseren Dichtungswirkung können dabei die Dichtungsfläche 8 des Federringes 4 und der Gegendichtungsbereich der Innenfläche 9 des äußeren Bauteils 1 feinbearbeitet sein; die Innenfläche 9 möglichst bis zum Einführungsende des Bauteils 1, um das Zusammenfügen und Lösen der Bauteile 1 und 2 zu erleichtern.According to the seal shown in FIGS. 1 to 3, for the purpose of sealing the clearance fit 3 to the outside, an open
Bei der Dichtung nach Fig. 1 bis 3 ist, ähnlich einem Kolbenring, ein Federring 4 verwendet, der in entspanntem Zustand geöffnete Freiräume 7 hat, die sich bei Belastung proportional schließen.1 to 3, a
Demgegenüber ist die Dichtung nach Figur 4 mit einem im spannungsfreien Zustand geschlossenen Federring 10 ausgestattet, der in einer Ringnut 5 des äußeren Bauteils 1 lagert und mit seiner inneren Dichtungsfläche 11 gegenüber der Außenfläche 12 des inneren Bauteils 2 abdichtet, während sich unter Belastung die überlappten Enden öffnen.In contrast, the seal according to FIG. 4 is equipped with a
Eine Kombinationsanwendung beider Federringe 4 und 10 in Ringnuten 5 weist die Dichtung von zwei, stirnseitig aneinanderstoßenden inneren Bauteilen 2 innerhalb eines äußeren Bauteiles 1 nach Figur 5 auf. Dabei ist je einer der Federringe 4 und 10 an einer Seite der Stoßstelle 13 der zwei, unter Vermittlung einer elastischen Mineralfaserdichtung 14 zusammengehaltenen inneren Bauteile 2 angeordnet und von dem äußeren Bauteil 1 umgeben. Dieser hat zwischen den Federringen 4 und 10 eine radiale Bohrung 15 mit einem Fluid-Anschluß 16 zum Zuführen beispielsweise eines abdichtenden Gases in den Bereich der Spielpassung 3 zwischen den Federringen 4 und 10. Derartige Dichtungen mit zusätzlichem Fluid-Anschluß 16 können an Schmelzezuführungen von Horizontalstranggießanlagen erforderlich sein, um dem Eindringen von Luft in den Schmelzestrom vorzubeugen.A combination application of both
Dem gleichen Zweck der Luftabsperrung in der Spielpassung 3 dient die in Fig. 6 gezeigte Dichtung an der Konusverbindung zwischen der Unterplatte 17 eines der einfachheithalber nicht dargestellten Schieberverschlusses und einem Ausgußrohr 18. Der dort angewendete, in Fig. 7 vergrößert dargestellte Federring 19, der im ungespannten Zustand weitgehend geschlossen ist, lagert in einer inneren Ringnut 20 des Kopfes des Ausgußrohres 18 und liegt mit seiner konischen Dichtungsfläche 21 am Anschlußkonus 22 der Unterplatte 17 an, wobei zwischen den sich gegenüberstehenden Planflächen des Anschlußkonus 22 und des Ausgußrohrkopfes ebenfalls eine elastische Mineralfaserdichtung 23 vorgesehen sein kann.The seal of the air fit in the
Indessen veranschaulicht Figur 8 ein Anwendungsbeispiel an einem Ausgußverschluß für metallurgische Gefäße, der einen im Gefäßboden 24 vertikal angeordneten drehfesten Ausgußteil 25 hat, durch den über Querbohrungen 26 Schmelze 27 vom Gefäßinnern ausfließt, sobald entsprechende Bohrungen 28 in einem äußeren, um die Achse 29 verstellbaren Bauteile 30 mehr oder weniger deckungsgleich sind. Dieser als Drehteil ausgebildete Bauteil 30 ist topfartig über den Ausgußteil 25 gestülpt und trägt innenseitig in Ringnuten 31 Federringe 32, die gegen die Umfangsfläche 33 des inneren Ausgußteils 25 abdichtend anliegen und die Spielpassung 3 gegen einen Durchfluß der Schmelze 27 abschirmen. Gleichzeitig dienen die Federringe 32 dem äußeren Bauteil 30 als Führung, wenn dieser über die Achse 29 zwecks Regulation des Schmelzeabflusses gedreht wird.In the meantime, FIG. 8 illustrates an application example of a pouring closure for metallurgical vessels, which has a non-rotatable pouring
Claims (6)
- Seal for refractory members which guide metallic melt, particularly for tubular members used at the outlet of metallurgical vessels, and which sealingly engage within one another and are individually replaceable, characterised in that arranged in the sealing region on at least one member (1,2,17,18,25,30) there is at least one split spring ring (4,10,19,32) which is supported in an annular groove (5,20,31) and has an overlap (6) at the open ends and which radially resiliently sealingly engages the other member.
- Seal as claimed in claim 1, characterised in that the annular groove (5,20,31) and the split spring ring (4,10,19,32) have a rectangular cross-section and the overlap is of rabbet-like construction.
- Seal as claimed in claim 1 and 2, characterised in that a plurality of split spring rings (4,10,32) are arranged spaced from one another.
- Seal as claimed in claim 3, characterised in that a connection (16) for introducing a sealing and/or cooling medium is provided between two spaced split spring rings (4,10).
- Seals as claimed in claims 1 to 4, characterised in that the sealing surface (8) on the split spring ring (4) and the corresponding sealing surface (9) on the member (1 or 2) are precision machined.
- Seal as claimed in the preceding claims, characterised in that the split spring ring (4,10,19,32) consists of dense ceramic material, in particular zirconium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89118291T ATE94790T1 (en) | 1988-11-17 | 1989-10-03 | GASKET FOR REFRACTORY METALLIC METAL CONDUCTING COMPONENTS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3838903A DE3838903A1 (en) | 1988-11-17 | 1988-11-17 | GASKET FOR FIRE-RESISTANT, METAL MELTING LEADING COMPONENTS |
| DE3838903 | 1988-11-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0369147A2 EP0369147A2 (en) | 1990-05-23 |
| EP0369147A3 EP0369147A3 (en) | 1991-12-04 |
| EP0369147B1 true EP0369147B1 (en) | 1993-09-22 |
Family
ID=6367349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89118291A Expired - Lifetime EP0369147B1 (en) | 1988-11-17 | 1989-10-03 | Sealing for refractory components containing metallic melt |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5106106A (en) |
| EP (1) | EP0369147B1 (en) |
| JP (1) | JPH02160166A (en) |
| KR (1) | KR970005375B1 (en) |
| CN (1) | CN1043100A (en) |
| AT (1) | ATE94790T1 (en) |
| BR (1) | BR8905800A (en) |
| CA (1) | CA2003093A1 (en) |
| DE (2) | DE3838903A1 (en) |
| ES (1) | ES2046425T3 (en) |
| ZA (1) | ZA897932B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU651946B2 (en) * | 1989-06-01 | 1994-08-11 | Shinagawa Refractories Co., Ltd. | Apparatus for controlling flow rate of molten metal |
| DE4024520A1 (en) * | 1990-08-02 | 1992-02-06 | Didier Werke Ag | CONNECTION BETWEEN THE OUTLET OF A METALLURGICAL VESSEL AND A PROTECTIVE PIPE OR DIP SPOUT |
| DE4140300A1 (en) * | 1991-12-06 | 1993-06-09 | Didier-Werke Ag, 6200 Wiesbaden, De | GASKET DEVICE FOR METALLIC MELTING LEADING FIRE-RESISTANT COMPONENTS |
| DE4415551A1 (en) * | 1994-05-03 | 1995-11-09 | Didier Werke Ag | Clamping device for a ceramic closure plate |
| DE19607089C1 (en) * | 1996-02-24 | 1997-04-17 | Didier Werke Ag | Closure and regulating device for flow of metal |
| US5798051A (en) * | 1996-03-29 | 1998-08-25 | Build A Mold, Ltd. | Sealing device for molten metal valve pin |
| DE19819114C1 (en) * | 1998-04-29 | 2000-01-05 | Didier Werke Ag | Fireproof duct with external insulation and method for sealing joints |
| US6698715B2 (en) | 1999-12-15 | 2004-03-02 | University Of Alabama | Valve having ceramic components and associated fabrication method |
| US6460559B2 (en) | 1999-12-15 | 2002-10-08 | University Of Alabama In Huntsville | Valve having ceramic components and associated fabrication method |
| US6578622B2 (en) | 2001-02-26 | 2003-06-17 | Siemens Vdo Automotive Inc. | Core cast manifold assembly |
| EP3180148A4 (en) * | 2014-08-14 | 2018-03-28 | Robert Cousineau | Ball bearing connector |
| CN106311981B (en) * | 2016-11-17 | 2018-03-02 | 遵义市润丰源钢铁铸造有限公司 | The apparatus for pouring of lost foam casting casting |
| CN108326276B (en) * | 2018-05-17 | 2023-09-19 | 山东钢铁股份有限公司 | Can adapt to mouth of a river of middle package molten steel superheat degree |
| CN108672693B (en) * | 2018-07-24 | 2024-02-13 | 鞍山市和丰耐火材料有限公司 | Sealing structure and method for submerged nozzle with expanded graphite material |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1005533A (en) * | 1939-01-27 | 1952-04-11 | Cie De Pont A Mousson | Pipe seal |
| US2314386A (en) * | 1942-01-14 | 1943-03-23 | Lock Joint Pipe Co | Pipe joint |
| US2631002A (en) * | 1949-01-27 | 1953-03-10 | Mueller Co | Angle valve with diagonal o-ring seal |
| US3058752A (en) * | 1959-06-30 | 1962-10-16 | Nat Coupling Co Inc | Gasket |
| US3561487A (en) * | 1966-12-29 | 1971-02-09 | Thomas G Reed Jr | Rotary valve with snap ring connector |
| US3556360A (en) * | 1969-01-15 | 1971-01-19 | Nozzle Inc | Gas stopper for a ladle |
| US3651998A (en) * | 1970-09-23 | 1972-03-28 | Metallurg Exoproducts Corp | Nozzle for a pouring ladle |
| US4047743A (en) * | 1974-04-25 | 1977-09-13 | Berger Industries, Inc. | Light walled conduit |
| US4275868A (en) * | 1977-05-09 | 1981-06-30 | Unarco Industries, Inc. | Valve with body and stem of plastic material |
| US4268046A (en) * | 1979-02-23 | 1981-05-19 | Muskegon Piston Ring Company | Multiple seal stationary sealing ring |
| DE3226047C2 (en) * | 1982-07-12 | 1985-11-28 | Didier-Werke Ag, 6200 Wiesbaden | Connection between the outlet cone of the closure of a casting vessel for molten metal and the protective tube connected to it |
| US4704332A (en) * | 1982-11-01 | 1987-11-03 | United Technologies Corporation | Lightweight fiber reinforced high temperature stable glass-ceramic abradable seal |
| DE3301913C2 (en) * | 1983-01-21 | 1985-05-09 | Feldmühle AG, 4000 Düsseldorf | Piston ring for an internal combustion engine |
| JPS631964U (en) * | 1986-06-21 | 1988-01-08 | ||
| ATE54591T1 (en) * | 1987-04-07 | 1990-08-15 | Mueller Weingarten Maschf | SUCTION PIPE FOR VACUUM DIE CASTING MACHINE. |
| DE8707708U1 (en) * | 1987-05-29 | 1987-08-27 | Metacon AG, Zürich | Device for attaching a submersible spout |
| JPH0315244Y2 (en) * | 1987-12-21 | 1991-04-03 | ||
| DE3809072A1 (en) * | 1988-03-18 | 1989-09-28 | Didier Werke Ag | TURN AND / OR SLIDE LOCK AND ITS LOCKING PARTS |
-
1988
- 1988-11-17 DE DE3838903A patent/DE3838903A1/en not_active Withdrawn
-
1989
- 1989-10-03 DE DE89118291T patent/DE58905680D1/en not_active Expired - Fee Related
- 1989-10-03 AT AT89118291T patent/ATE94790T1/en active
- 1989-10-03 EP EP89118291A patent/EP0369147B1/en not_active Expired - Lifetime
- 1989-10-03 ES ES198989118291T patent/ES2046425T3/en not_active Expired - Lifetime
- 1989-10-19 ZA ZA897932A patent/ZA897932B/en unknown
- 1989-10-25 KR KR1019890015391A patent/KR970005375B1/en not_active IP Right Cessation
- 1989-11-15 CN CN89108560A patent/CN1043100A/en active Pending
- 1989-11-16 CA CA002003093A patent/CA2003093A1/en not_active Abandoned
- 1989-11-16 BR BR898905800A patent/BR8905800A/en unknown
- 1989-11-16 JP JP1296310A patent/JPH02160166A/en active Pending
-
1990
- 1990-12-21 US US07/633,399 patent/US5106106A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2003093A1 (en) | 1990-05-17 |
| BR8905800A (en) | 1990-06-12 |
| ATE94790T1 (en) | 1993-10-15 |
| CN1043100A (en) | 1990-06-20 |
| ES2046425T3 (en) | 1994-02-01 |
| DE58905680D1 (en) | 1993-10-28 |
| US5106106A (en) | 1992-04-21 |
| DE3838903A1 (en) | 1990-05-23 |
| EP0369147A3 (en) | 1991-12-04 |
| EP0369147A2 (en) | 1990-05-23 |
| KR900007519A (en) | 1990-06-01 |
| KR970005375B1 (en) | 1997-04-15 |
| ZA897932B (en) | 1990-07-25 |
| JPH02160166A (en) | 1990-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0369147B1 (en) | Sealing for refractory components containing metallic melt | |
| EP0507127B1 (en) | Pipe switch | |
| DE4001731C2 (en) | Gland packing arrangement | |
| EP0469268B2 (en) | Connection between the outlet of a metallurgical vessel and a protective tube or immersion nozzle | |
| EP0630712B1 (en) | Immersion nozzle | |
| EP0226118A2 (en) | Container for agressive fluids | |
| DE69507775T2 (en) | Shut-off valve | |
| EP1420870B1 (en) | Filter device, in particular for high-pressure applications in a molten polymer filtration | |
| DE3828086A1 (en) | Poppet valve | |
| DE2003339C3 (en) | Device for feeding the blow openings in the bottom of a steel converter | |
| EP2516086B1 (en) | Sliding closure for a metallurgical container | |
| DE4019991A1 (en) | COLUMN BODY FOR RECEIVING PLATE HEAT EXCHANGERS | |
| DE2726078C3 (en) | Method and device for removing slag or the like. of molten metal | |
| DE2055500B2 (en) | Heat exchanger | |
| EP0446406A1 (en) | Sliding gate valve for a metallurgical vessel, especially a casting ladle | |
| CH627820A5 (en) | Valve cage with cooled valve seat for the exhaust valve of a diesel engine | |
| DE202008014506U1 (en) | vessel flange | |
| DE3939241C2 (en) | Locking and / or regulating device | |
| DE69508865T2 (en) | Valve with closure element and membrane | |
| DE4446935C2 (en) | Multi-stage high pressure jet pipe | |
| DE102008045657A1 (en) | Apparatus and method for reducing the pressure on a parting line between at least two boundary parts | |
| DE2602577A1 (en) | Shut-off valve with seat cage supported by flexible diaphragm - has gaskets between collar and flange to permit relative axial movement between cage and body | |
| DE102020111695B3 (en) | Slide gate valve with internal sealing body and method for its assembly | |
| DE2637028A1 (en) | Dynamic seal ring between two coaxial tubes - has location by internal and external flange rings to allow for heat expansion | |
| DE212015000264U1 (en) | Fluid distribution device |
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 |
|
| 17P | Request for examination filed |
Effective date: 19891031 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19930224 |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
| REF | Corresponds to: |
Ref document number: 94790 Country of ref document: AT Date of ref document: 19931015 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 58905680 Country of ref document: DE Date of ref document: 19931028 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930930 |
|
| EPTA | Lu: last paid annual fee | ||
| REG | Reference to a national code |
Ref country code: GR Ref legal event code: FG4A Free format text: 3009328 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2046425 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 89118291.7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19960924 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19961001 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19961009 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19961011 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19961016 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19961022 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GR Payment date: 19961024 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19961029 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19961030 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19961128 Year of fee payment: 8 |
|
| 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: 19971003 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971003 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971003 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971004 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971004 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971031 Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971031 Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19971031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971031 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19971124 Year of fee payment: 9 |
|
| BERE | Be: lapsed |
Owner name: DIDIER-WERKE A.G. Effective date: 19971031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980501 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19971003 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19980501 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 89118291.7 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990803 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19981113 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051003 |