EP0662020B1 - Turn-lock fastener for metallurgical vessels - Google Patents
Turn-lock fastener for metallurgical vessels Download PDFInfo
- Publication number
- EP0662020B1 EP0662020B1 EP93919148A EP93919148A EP0662020B1 EP 0662020 B1 EP0662020 B1 EP 0662020B1 EP 93919148 A EP93919148 A EP 93919148A EP 93919148 A EP93919148 A EP 93919148A EP 0662020 B1 EP0662020 B1 EP 0662020B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- sleeves
- pouring
- discharge
- spout
- 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
- 230000000295 complement effect Effects 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000007704 transition Effects 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
- B22D41/14—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
- B22D41/28—Plates therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—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
- B22D41/26—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 characterised by a rotatively movable plate
Definitions
- the invention relates to a rotary closure for opening and closing the outlet opening in a sleeve inserted in the outlet stone in the bottom of a metallurgical vessel, consisting of a spout arranged rotatably about a vertical axis with respect to the stationary outlet stone with an inserted sleeve with an inclined pouring channel, depending on Rotary position of the spout fully or partially opens or closes the outlet opening in the outlet stone.
- stopper rods, slides and twist locks as closures for the outlet opening of metallurgical vessels.
- the two last-mentioned types of closures have recently become established.
- the proportion of plug rod closures has decreased.
- a slide closure, in which the outlet opening located therein is closed and opened by sliding a slide plate relative to stationary base plates on the bottom of the metallurgical vessel, is known in one embodiment from EP-A-0 346 258. Twist locks are available in different versions. Examples can be found in DE-A-1 910 247 and in DE-C-3 843 865.
- a twist lock for the outlet opening in the bottom of a metallurgical vessel with the aforementioned features is known a sleeve with a vertical pouring channel is inserted in the outlet stone (perforated stone). On the lower horizontal end surface of this sleeve, there is a cylindrical sleeve in the spout, in which an oblique extending pouring channel is provided with vertically extending end portions.
- the opposite openings of the respective pouring channels are completely or partially aligned in certain rotational positions and are separated from one another in other rotational positions.
- US-A-3 712 518 discloses a slide fastener with plates of the same or similar shape and size in order to simplify the manufacture and storage of the wearing parts.
- the screw caps differ from the slide caps in that the outlet opening of the metallurgical vessel is not opened and closed by a linear displacement of the slide plate, but rather by rotating a pouring stone.
- the pouring channels are aligned so that the outlet opening is open.
- the pouring channels in the outlet sleeve in the bottom of the metallurgical vessel on the one hand and in the pouring stone on the other hand are separated from one another, so that the outflow opening of the metallurgical vessel is closed.
- a disadvantage of the known twist locks is that the stones, which can be rotated relative to one another, are relatively complicated and shaped differently.
- the invention is based on the task of creating a more cost-effective solution for a twist lock.
- the sleeves preferably have the shape of a truncated cone and have a widened edge on their end face.
- the sleeves should be made of highly refractory material, which can also contain carbon.
- opposite end sections of the pouring channels run vertically in the sleeves. This favors the pouring jet deflection and avoids sharp transitions from one pouring channel to the other.
- a major advantage of the twist lock design according to the invention is that the sleeves in the bottom of the metallurgical vessel on the one hand and in the spout on the other hand are shaped the same. This lowers the cost of manufacture and simplifies storage, because now only a single type of stone has to be manufactured and stored, whereas in known rotary lock designs, these were always differently shaped stones that were in sliding engagement with one another.
- Another advantage of the solution according to the invention is that no axis offset occurs, that is, the outflow channel in the spout, for. B. in a dip spout, is coaxial to the outlet channel in the outlet stone in the bottom of the metallurgical vessel. Since, moreover, the dividing plane runs horizontally between the engaged sleeves, the rotary drive for rotating the spout from a closed position into the open position and vice versa can be carried out relatively simply.
- the outlet stone 1 with the vertically running pouring channel 2 is inserted into the bottom of the metallurgical vessel (not shown).
- the frustoconical outlet sleeve 3 is inserted, which contains a pouring channel 5 which runs obliquely to the vertical axis 4 and which opens into a section 6 parallel to the vertical axis 4 of the pouring channel 2 and which extends as far as the end face 7 of the outlet sleeve 3 extends.
- the outlet sleeve 3 has a widened edge 8 at the lower end, which is partially embedded in the outlet stone 1.
- the lower end of the outlet stone 1 is reinforced by a metal ring 9.
- the sleeves 3, 3a are mirror images of one another in the installed state.
- the likewise frustoconical sleeve 3a also has an inclined pouring channel 5a which opens into a section 6a on the end face 7a which is parallel to the vertical 4.
- the sleeve 3a is embedded in a spout 10. This could be an immersion spout.
- the spout 10 is reinforced by a metal jacket 11 on the outer circumference and has a pouring channel 12 coaxial with the pouring channel 2 in the outlet stone 1.
- the inclined pouring channels 5, 5a in the sleeves 3, 3a open at one end into the pouring channel 2 or 12 of the outlet stone 1 or the spout 10.
- the opposite end sections 6, 6a of the pouring channels 5, 5a which are axially parallel to the vertical 4, end at the end faces 7, 7a of the sleeves 3, 3a.
- the pouring channel is separated at the contact surfaces 7, 7a. Melt cannot flow from the pouring channel 2 into the pouring channel 12. This is the position shown in solid lines in FIG. 2.
- the openings of the end sections 6, 6a of the oblique pouring channels 5, 5a in the sleeves 3 and 3a are laterally offset from one another, to the extent that they do not overlap.
- the spout 10 is clamped by means not shown to the outlet stone 1 or pressed against it and rotatably mounted about the vertical axis 4 with respect to the stationary outlet stone 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Closures For Containers (AREA)
Abstract
Description
Die Erfindung betrifft einen Drehverschluß für das Öffnen und Schließen der Auslauföffnung in einer im Auslaufstein im Boden eines metallurgischen Gefäßes eingesetzten Hülse, bestehend aus einem gegenüber dem ortsfesten Auslaufstein um eine vertikale Achse drehbar angeordneten Ausguß mit eingesetzter Hülse mit darin schräg verlaufendem Gießkanal, die je nach Drehstellung des Ausgusses die Auslauföffnung im Auslaufstein ganz oder teilweise öffnet bzw. schließt.The invention relates to a rotary closure for opening and closing the outlet opening in a sleeve inserted in the outlet stone in the bottom of a metallurgical vessel, consisting of a spout arranged rotatably about a vertical axis with respect to the stationary outlet stone with an inserted sleeve with an inclined pouring channel, depending on Rotary position of the spout fully or partially opens or closes the outlet opening in the outlet stone.
Als Verschluß für die Auslauföffnung metallurgischer Gefäße gibt es Stopfenstangen, Schieber und Drehverschlüsse. Die beiden zuletzt genannten Verschlußarten haben sich in neuerer Zeit durchgesetzt. Der Anteil an Stopfenstangenverschlüssen ist zurückgegangen. Ein Schieberverschluß, bei dem durch Verschieben einer Schieberplatte gegenüber ortsfesten Bodenplatten am Boden des metallurgischen Gefäßes die darin befindliche Ausflußöffnung geschlossen und geöffnet wird, ist in einer Ausführung aus der EP-A-0 346 258 bekannt. Drehverschlüsse gibt es in verschiedenen Ausführungen. Beispiele finden sich in der DE-A-1 910 247 und in der DE-C-3 843 865. Aus der DE-A-1 910 247 ist ein Drehverschluß für die Auslauföffnung im Boden eines metallurgischen Gefäßes mit den vorgenannten Merkmalen bekannt, bei dem im Auslaufstein (Lochstein) eine Hülse mit vertikalem Gießkanal eingesetzt ist. An der unteren horizontalen Endfläche dieser Hülse liegt eine zylindrische Hülse im Ausguß an, in der ein schräg verlaufender Gießkanal mit vertikal verlaufenden Endabschnitten vorgesehen ist. Die gegenüberliegeden Öffnungen der jeweiligen Gießkanäle fluchten in bestimmten Drehstellungen ganz oder teilweise und sind in anderen Drehstellungen voneinander getrennt.There are stopper rods, slides and twist locks as closures for the outlet opening of metallurgical vessels. The two last-mentioned types of closures have recently become established. The proportion of plug rod closures has decreased. A slide closure, in which the outlet opening located therein is closed and opened by sliding a slide plate relative to stationary base plates on the bottom of the metallurgical vessel, is known in one embodiment from EP-A-0 346 258. Twist locks are available in different versions. Examples can be found in DE-A-1 910 247 and in DE-C-3 843 865. From DE-A-1 910 247 a twist lock for the outlet opening in the bottom of a metallurgical vessel with the aforementioned features is known a sleeve with a vertical pouring channel is inserted in the outlet stone (perforated stone). On the lower horizontal end surface of this sleeve, there is a cylindrical sleeve in the spout, in which an oblique extending pouring channel is provided with vertically extending end portions. The opposite openings of the respective pouring channels are completely or partially aligned in certain rotational positions and are separated from one another in other rotational positions.
Die US-A-3 712 518 offenbart einen Schiebeverschluß mit Platten gleicher bzw. ähnlicher Form und Abmessung, um die Herstellung und Lagerung der Verschleißteile zu vereinfachen.US-A-3 712 518 discloses a slide fastener with plates of the same or similar shape and size in order to simplify the manufacture and storage of the wearing parts.
Prinzipiell unterscheiden sich die Drehverschlüsse von den Schieberverschlüssen dadurch, daß die Ausflußöffnung des metallurgischen Gefäßes nicht durch Linearverschiebung dar Schieberplatte geöffnet und verschlossen wird, sondern durch Drehen eines Ausgußsteins. In einer Stellung des Ausgußsteins fluchten die Gießkanäle, so daß die Ausflußöffnung offen ist. In anderen Drehstellungen des Ausgußsteins sind die Gießkanäle in der Auslaufhülse im Boden des metallurgischen Gefäßes einerseits und im Ausgußstein andererseits voneinander getrennt, so daß die Ausflußöffnung des metallurgischen Gefäßes geschlossen ist.In principle, the screw caps differ from the slide caps in that the outlet opening of the metallurgical vessel is not opened and closed by a linear displacement of the slide plate, but rather by rotating a pouring stone. In one position of the pouring stone, the pouring channels are aligned so that the outlet opening is open. In other rotational positions of the pouring stone, the pouring channels in the outlet sleeve in the bottom of the metallurgical vessel on the one hand and in the pouring stone on the other hand are separated from one another, so that the outflow opening of the metallurgical vessel is closed.
Wenn die Drehung um eine zur Vertikalen schräge Achse erfolgt, was den Drehmechanismus konstruktiv aufwendig macht, ist es zwar möglich, die Austrittsöffnung ortsfest zu halten, die Richtung der Achse des Gießkanals ändert sich aber beim Betätigen des Drehverschlusses.If the rotation takes place about an axis that is inclined to the vertical, which makes the rotating mechanism structurally complex, it is possible to keep the outlet opening stationary, but the direction of the axis of the pouring channel changes when the rotary closure is actuated.
Nachteilig bei den bekannten Drehverschlüssen ist, daß die gegeneinander verdrehbaren Steine verhältnismäßig kompliziert und unterschiedlich geformt sind.A disadvantage of the known twist locks is that the stones, which can be rotated relative to one another, are relatively complicated and shaped differently.
Der Erfingung liegt die Aufgabe zugrunde eine kostengünstigere Lösung für einen Drehverschluß zu schaffen.The invention is based on the task of creating a more cost-effective solution for a twist lock.
Zur Lösung der gestellten Aufgabe wird erfindungsgemäß vorgeschlagen, daß im Auslaufstein und im Ausguß schräg verlaufende Gießkanäle aufweisende baugleiche Hülsen eingesetzt sind, die im Einbauzustand mit ihren komplementären horizontalen Endflächen spiegelbildlich gleich aneinander liegen.To achieve the object, it is proposed according to the invention that identical sleeves with identical pouring channels are used in the outlet stone and in the spout, which in the installed state with their complementary horizontal end faces are mirror images of one another.
Bevorzugt haben die Hülsen die Form eines Kegelstumpfes und weisen an ihrer Endfläche einen verbreiterten Rand auf. Die Hülsen sollten aus hochfeuerfestem Material bestehen, das auch Kohlenstoff enthalten kann.The sleeves preferably have the shape of a truncated cone and have a widened edge on their end face. The sleeves should be made of highly refractory material, which can also contain carbon.
Gemaß einer weiteren bevorzugten Ausgestaltung des erfindungsgemäßen Drehverschlusses verlaufen gegenüberliegende Endabschnitte der Gießkanäle in den Hülsen vertikal. Hierdurch wird die Gießstrahlumlenkung begünstigt und scharfe Übergänge von einem in den anderen Gießkanal vermieden.According to a further preferred embodiment of the twist lock according to the invention, opposite end sections of the pouring channels run vertically in the sleeves. This favors the pouring jet deflection and avoids sharp transitions from one pouring channel to the other.
Wesentlicher Vorteil der erfindungsgemäßen Drehverschluß-Ausbildung ist, daß die Hülsen im Boden des metallurgischen Gefäßes einerseits und im Ausguß andererseits gleich geformt sind. Dies verbilligt einmal die Fertigung und erleichtert die Lagerhaltung, weil nun nur noch ein einziger Steintyp hergestellt und gelagert werden muß, während dies bei bekannten Drehverschluß-Ausführungen immer verschieden geformte Steine waren, die miteinander in gleitendem Eingriff standen. Ein weiterer Vorteil der erfindungsgemäßen Lösung ist der, daß kein Achsversatz auftritt, das heißt, der Ausflußkanal im Ausguß, z. B. in einem Tauchausguß, ist koaxial zu dem Auslaufkanal im Auslaufstein im Boden des metallurgischen Gefäßes. Da im übrigen die Teilungsebene zwischen den in Eingriff stehenden Hülsen waagerecht verläuft, kann der Drehantrieb zum Drehen des Ausgusses aus einer Schließstellung in die Öffnungsstellung und umgekehrt verhältnismäßig einfach ausgeführt werden.A major advantage of the twist lock design according to the invention is that the sleeves in the bottom of the metallurgical vessel on the one hand and in the spout on the other hand are shaped the same. This lowers the cost of manufacture and simplifies storage, because now only a single type of stone has to be manufactured and stored, whereas in known rotary lock designs, these were always differently shaped stones that were in sliding engagement with one another. Another advantage of the solution according to the invention is that no axis offset occurs, that is, the outflow channel in the spout, for. B. in a dip spout, is coaxial to the outlet channel in the outlet stone in the bottom of the metallurgical vessel. Since, moreover, the dividing plane runs horizontally between the engaged sleeves, the rotary drive for rotating the spout from a closed position into the open position and vice versa can be carried out relatively simply.
In den Zeichnungen ist ein Ausführungsbeispiel des erfindungsgemäßen Drehverschlusses dargestellt. Es zeigen
- Fig. 1
- den Drehverschluß in Längsschnitt und
- Fig. 2
- eine Draufsicht des Ausgusses.
- Fig. 1
- the twist lock in longitudinal section and
- Fig. 2
- a top view of the spout.
In Boden des nicht dargestellten metallurgischen Gefäßes ist der Auslaufstein 1 mit dem vertikal verlaufenden Gießkanal 2 eingesetzt. In den Endabschnitt des Auslaufsteins 1 ist die kegelstumpfförmige Auslaufhülse 3 eingesetzt, die einen schräg zur vertikalen Achse 4 verlaufenden Gießkanal 5 enthält, der in einen parallel zur vertikalen Achse 4 des Gießkanals 2 parallelen Abschnitt 6 mündet, der sich bis zur Endfläche 7 der Auslaufhülse 3 erstreckt. Die Auslaufhülse 3 hat einen verbreiterten Rand 8 am unteren Ende, der teilweise in den Auslaufstein 1 eingelassen ist. Durch einen Metallring 9 wird das untere Ende des Auslaufsteins 1 verstärkt.The outlet stone 1 with the vertically running pouring
An der unteren Fläche 7 der Auslaufhülse 3 liegt eine baugleiche Hülse 3a mit ihrer Endfläche 7a an, so daß die Hülsen 3, 3a im Einbauzustand spiegelbildlich gleich sind. Die ebenfalls kegelstumpfförmige Hülse 3a hat ebenfalls einen schrägen Gießkanal 5a, der in einen zur Vertikalen 4 achsparallelen Abschnitt 6a an der Endfläche 7a mündet. Eingelassen ist die Hülse 3a in einen Ausguß 10. Dies könnte ein Tauchausguß sein. Der Ausguß 10 ist durch einen Metallmantel 11 am Außenumfang verstärkt und hat einen mit dem Gießkanal 2 im Auslaufstein 1 koaxialen Gießkanal 12. Die schrägen Gießkanäle 5, 5a in den Hülsen 3, 3a münden an einem Ende in den Gießkanal 2 bzw. 12 des Auslaufsteins 1 bzw. des Ausgusses 10. Die gegenüberliegenden zur Vertikalen 4 achsparallelen Endabschnitte 6, 6a der Gießkanäle 5, 5a enden an den Endflächen 7, 7a der Hülsen 3, 3a. In der in Fig. 1 dargestellten Stellung der Hülsen 3, 3a ist der Gießkanal an den Berührungsflächen 7, 7a getrennt. Schmelze kann aus dem Gießkanal 2 nicht in den Gießkanal 12 strömen. Es ist dies die Stellung, die in Fig. 2 in durchgezogenen Linien gezeigt ist. Die Öffnungen der Endabschnitte 6, 6a der schrägen Gießkanäle 5, 5a in den Hülsen 3 bzw. 3a sind seitlich zueinander versetzt, und zwar soweit, daß sie sich nicht überdecken. Durch Drehen des Ausgusses 10 um die vertikale Achse 4 können die Endabschnitte 6, 6a der Gießkanäle 5, 5a in den Hülsen 3, 3a in fluchtende Ausrichtung gebracht werden, wodurch es einer Schmelze ermöglicht wird, durch den Gießkanal 2 und 5 im Auslauf des metallurgischen Gefäßes durch den Gießkanal 5a und 12 im Ausguß auszufließen. In strichpunktierten Linien sind in Fig. 2 andere Schließstellungen dargestellt.On the lower surface 7 of the outlet sleeve 3 there is an identical sleeve 3a with its
Der Ausguß 10 wird durch nicht dargestellte Mittel mit dem Auslaufstein 1 verklammert oder an diesen angepreßt und gegenüber dem ortsfesten Auslaufstein 1 um die vertikale Achse 4 drehbar gelagert.The
Claims (4)
- A rotary closure for opening and closing the discharge opening in a sleeve inserted in the discharge block in the bottom of a metallurgical vessel, comprising a drain disposed to rotate around a vertical axis in relation to the fixed discharge block and having an inserted sleeve which contains a pouring channel extending at an inclination therein and which completely or partially opens or closes the discharge opening in the discharge block in dependence on the rotated position of the drain, characterized in that inserted in the discharge block (1) and the drain (10) are identically constructed sleeves (3, 3a) which have pouring channels (5, 5a) extending at an inclination and which in the incorporated state bear identically laterally inverted against one another via their complementary horizontal end faces (7, 7a).
- A rotary closure according to claim 1, characterized in that the sleeves (3, 3a) are frustoconical in shape and have a widened edge at their end faces (7, 7a).
- A rotary closure according to claims 1 or 2, characterized in that the sleeves (3, 3a) are made of a highly refractory material which can also contain carbon.
- A rotary closure according to one of claims 1 to 3, characterized in that opposite end portions (6, 6a) of the pouring channels (5a, 5a) extend vertically in the sleeves (3, 3a).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4231692 | 1992-09-22 | ||
| DE4231692A DE4231692C1 (en) | 1992-09-22 | 1992-09-22 | Twist lock for metallurgical vessels |
| PCT/EP1993/002265 WO1994006587A1 (en) | 1992-09-22 | 1993-08-24 | Turn-lock fastener for metallurgical vessels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0662020A1 EP0662020A1 (en) | 1995-07-12 |
| EP0662020B1 true EP0662020B1 (en) | 1996-06-05 |
Family
ID=6468537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93919148A Expired - Lifetime EP0662020B1 (en) | 1992-09-22 | 1993-08-24 | Turn-lock fastener for metallurgical vessels |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0662020B1 (en) |
| JP (1) | JPH08506272A (en) |
| KR (1) | KR950703420A (en) |
| AT (1) | ATE138836T1 (en) |
| CA (1) | CA2145279A1 (en) |
| CZ (1) | CZ71295A3 (en) |
| DE (2) | DE4231692C1 (en) |
| PL (1) | PL309568A1 (en) |
| RU (1) | RU95108758A (en) |
| WO (1) | WO1994006587A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9408018U1 (en) * | 1994-05-14 | 1994-09-01 | D.W. Schulte GmbH & Co. KG, 58840 Plettenberg | Perforated stone |
| DE19525917A1 (en) * | 1994-07-22 | 1996-01-25 | Mannesmann Ag | Twist lock for a metallurgical vessel |
| JPH08168872A (en) | 1994-07-22 | 1996-07-02 | Mannesmann Ag | Rotating closing device for tap hole in bottom surface of metallurgical vessle |
| KR100423442B1 (en) * | 1999-12-28 | 2004-03-19 | 주식회사 포스코 | Sliding gate device for continuous casting to prevent a bias flow |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1910247A1 (en) * | 1969-02-28 | 1970-09-10 | Neitzel Dipl Ing Martin | Device and method for pouring metallurgical melts and similar products |
| BE757219A (en) * | 1969-10-13 | 1971-03-16 | Interstop Ag | DISCHARGE DRAWER CLOSURE FOR METAL CASTING TANKS |
| GB1515922A (en) * | 1975-06-04 | 1978-06-28 | Danieli Off Mecc | Bottom pouring vessel with rotary sliding gate valve for molten metal |
| CH649149A5 (en) * | 1980-05-22 | 1985-04-30 | Stopinc Ag | TURNTABLE SLIDER FOR MELTING CASES. |
| JPH01143757A (en) * | 1986-12-20 | 1989-06-06 | Didier Werke Ag | Rotary sliding closing device for metallurgical vessel and body of revolution for such rotary sliding closing device |
| FR2631266B1 (en) * | 1988-05-13 | 1990-09-14 | Detalle Edouard | CASTING SHUTTER WITH LINEAR DISPLACEMENT AND AXIAL SYMMETRY |
| DE3843865C1 (en) * | 1988-12-23 | 1990-02-22 | Martin & Pagenstecher Gmbh, 5000 Koeln, De |
-
1992
- 1992-09-22 DE DE4231692A patent/DE4231692C1/en not_active Expired - Fee Related
-
1993
- 1993-08-24 EP EP93919148A patent/EP0662020B1/en not_active Expired - Lifetime
- 1993-08-24 JP JP6507734A patent/JPH08506272A/en active Pending
- 1993-08-24 CZ CZ95712A patent/CZ71295A3/en unknown
- 1993-08-24 PL PL93309568A patent/PL309568A1/en unknown
- 1993-08-24 CA CA002145279A patent/CA2145279A1/en not_active Abandoned
- 1993-08-24 DE DE59302842T patent/DE59302842D1/en not_active Expired - Fee Related
- 1993-08-24 RU RU95108758/02A patent/RU95108758A/en unknown
- 1993-08-24 KR KR1019950701113A patent/KR950703420A/en not_active Application Discontinuation
- 1993-08-24 AT AT93919148T patent/ATE138836T1/en not_active IP Right Cessation
- 1993-08-24 WO PCT/EP1993/002265 patent/WO1994006587A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| PL309568A1 (en) | 1995-10-30 |
| EP0662020A1 (en) | 1995-07-12 |
| KR950703420A (en) | 1995-09-20 |
| DE59302842D1 (en) | 1996-07-11 |
| ATE138836T1 (en) | 1996-06-15 |
| RU95108758A (en) | 1997-01-27 |
| CZ71295A3 (en) | 1996-01-17 |
| CA2145279A1 (en) | 1994-03-31 |
| DE4231692C1 (en) | 1994-03-24 |
| JPH08506272A (en) | 1996-07-09 |
| WO1994006587A1 (en) | 1994-03-31 |
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