EP0429860A2 - Shut-off and/or control element - Google Patents
Shut-off and/or control element Download PDFInfo
- Publication number
- EP0429860A2 EP0429860A2 EP90120544A EP90120544A EP0429860A2 EP 0429860 A2 EP0429860 A2 EP 0429860A2 EP 90120544 A EP90120544 A EP 90120544A EP 90120544 A EP90120544 A EP 90120544A EP 0429860 A2 EP0429860 A2 EP 0429860A2
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- EP
- European Patent Office
- Prior art keywords
- tube
- face
- sealing surfaces
- regulating element
- element according
- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 3
- 238000010079 rubber tapping Methods 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
-
- 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
Definitions
- the invention relates to a closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with a vertical, ceramic inner tube with at least one lateral opening and with a ceramic outer tube with at least one lateral opening, one tube being stationary and the other tube this is rotatable and the tubes form circular-cylindrical main sealing surfaces next to the openings and have end faces which extend radially around the common longitudinal axis of the tubes.
- Such a locking and / or regulating element is described in DE 35 40 202 C1.
- the outer tube is rotated against the inner tube so that the openings no longer coincide.
- the main sealing surfaces prevent further melt leakage.
- the gap between the main sealing surfaces is dimensioned so narrow that it does not let melt through.
- the object of the invention is to design a closing and / or regulating member of the type mentioned in such a way that a complete closure of the closing and / or regulating member is possible even if the main sealing surfaces wear out or the gap between them is widened.
- the above object is achieved in a closing and / or regulating member of the type mentioned at the outset in that at least one end face of one pipe faces an end face of the other pipe in the axial direction, and in that the end face of the rotatable pipe, at least when the main sealing faces leak, onto the end face of the stationary tube can be pressed on in such a way that the end faces stand on one another in a melt-tight manner and thereby form replacement sealing faces.
- the closing and / or regulating member can still be used even if, after prolonged operation, the sealing gap between the main sealing surfaces is widened to such an extent that the main sealing surfaces alone can no longer prevent melt from escaping.
- a ceramic tube (3) is attached to the bottom (1) of a metallurgical vessel (2).
- the tube (3) has a lateral opening (4) above the base (1).
- a step (5) is provided on the inside of the tube (3) according to FIG. 1.
- an end face (6) is formed on the tube (3) above the opening (4) and an end face (7) below the opening (4).
- a circular cylindrical main sealing surface (8) lies between the end faces (6, 7).
- a ceramic tube (9) forming an inner tube is inserted into the tube (3) forming an outer tube. This can be rotated about the common longitudinal axis (L) of the two tubes (3, 9). It has an opening (10) at the height of the opening (4). An end face (12) above the opening (10) and an end face (13) below the opening (10) are formed on the tube (9) by an outside step (11).
- a circular cylindrical main sealing surface (14) runs between the two end faces (12, 13).
- the end faces (6, 7, 12, 13) extend radially around the longitudinal axis (L) and run around it.
- the upper end faces (12) face the upper end face (6).
- the lower end face (13) is axially opposite the lower end face (7).
- Figure 2 differs from that of Figure 1 in that the fixed tube (3) as an inner tube and the rotatable tube (9) are designed as an outer tube. Corresponding parts are provided with the same reference symbols.
- the tube (9) is rotated about the longitudinal axis (L) so that the openings (4, 10) no longer coincide. A gap existing between these is dimensioned so small that melt does not pass between the main sealing surfaces (8, 14).
- the gap between the main sealing surfaces (8, 14) can widen, so that the gap becomes permeable to melt.
- the pipe (9) can be pressurized in the direction of the arrow (P).
- the upper end face (12) of the tube (9) is pressed onto the upper end face (6) of the tube (3) by the pressure. pressed.
- the lower end face (13) of the tube (9) is pressed onto the lower end face (7) of the tube (3).
- the end faces become replacement sealing surfaces that prevent the melt from escaping. It may also be sufficient if only the upper end faces (12, 6) or the lower end faces (13, 7) are pressed together by the pressing pressure.
- the pressure is between 0.1 bar and 10 bar.
- the end faces (6, 7, 12, 13) can be made of the same material as the tubes (3, 9). However, it is also possible to provide inserts made of an oxide ceramic such as Al2O3 or ZrO2 on the end faces (6, 7, 12, 13).
- the inserts can also consist of boron nitride and / or graphite.
- the replacement sealing surfaces can be flat or profiled, a labyrinth shape being created for the replacement sealing surfaces.
- the replacement sealing surfaces (6, 12) and / or (7, 13) do not need to be constantly pressed together by means of the pressing pressure required for sealing. It is sufficient to press the replacement sealing surfaces only when the main sealing surfaces (8, 14) themselves are no longer sufficiently tight. However, in In this case, the leakage of the main sealing surfaces (8, 14) can only be determined. In order to avoid this, the tube (9) can always be pressurized when the tube (9) is in its closed position. Applying the pressure to the tube (9) even when the tube (9) is rotated appears to be unfavorable, since it is then difficult to rotate and the replacement sealing surfaces would be stressed by the rotation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Charging Or Discharging (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
Die Erfindung betrifft ein Schließ- und/oder Regelorgan für den Abstich flüssiger Metallschmelze aus einem metallurgischen Gefäß mit einem vertikalen, keramischen Innenrohr mit wenigstens einer seitlichen Öffnung und mit einem keramischen Außenrohr mit wenigstens einer seitlichen Öffnung, wobei das eine Rohr ortsfest und das andere Rohr diesem gegenüber drehbar ist und die Rohre neben den Öffnungen kreiszylindrische Hauptdichtflächen bilden und Stirnflächen aufweisen, die sich radial um die gemeinsame Längsachse der Rohre erstrecken.The invention relates to a closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with a vertical, ceramic inner tube with at least one lateral opening and with a ceramic outer tube with at least one lateral opening, one tube being stationary and the other tube this is rotatable and the tubes form circular-cylindrical main sealing surfaces next to the openings and have end faces which extend radially around the common longitudinal axis of the tubes.
Ein derartiges Schließ- und/oder Regelorgan ist in der DE 35 40 202 C1 beschrieben. Zum Schließen des Schließ- und/oder Regelorgangs wird das Außenrohr gegen das Innenrohr verdreht, so daß sich die Öffnungen nicht mehr decken. Die Hauptdichtflächen verhindern einen weiteren Schmelzenaustritt. Hierfür ist der Spalt zwischen den Hauptdichtflächen so schmal bemessen, daß er Schmelze nicht durchläßt.Such a locking and / or regulating element is described in DE 35 40 202 C1. To close the closing and / or regulating mechanism, the outer tube is rotated against the inner tube so that the openings no longer coincide. The main sealing surfaces prevent further melt leakage. For this purpose, the gap between the main sealing surfaces is dimensioned so narrow that it does not let melt through.
Versuche haben gezeigt, daß sich bei langen Gießzeiten der Spalt zwischen den Hauptdichtflächen aufweiten kann. Dies hat zur Folge, daß auch in der Schließstellung der Rohre Schmelze auftreten kann. Dies ist unerwünscht. Ähnliche Schließ- und/oder Regelorgane sind auch in der DE 37 31 600 A1 beschrieben. Auch dort kann das genannte Problem auftreten.Tests have shown that the gap between the main sealing surfaces can widen with long casting times. As a result, melt can also occur in the closed position of the pipes. This is undesirable. Similar locking and / or regulating elements are also described in DE 37 31 600 A1. The problem mentioned can also occur there.
Aufgabe der Erfindung ist es, ein Schließ- und/oder Regelorgan der eingangs genannten Art so zu gestalten, daß auch bei einem Verschleiß der Hauptdichtflächen bzw. einer Aufweitung des zwischen diesen bestehenden Spaltes ein vollständiges Abschließen des Schließ- und/oder Regelorgans möglich ist.The object of the invention is to design a closing and / or regulating member of the type mentioned in such a way that a complete closure of the closing and / or regulating member is possible even if the main sealing surfaces wear out or the gap between them is widened.
Erfindungsgemäß ist obige Aufgabe bei einem Schließ- und/oder Regelorgan der eingangs genannten Art dadurch gelöst, daß wenigstens eine Stirnfläche des einen Rohres einer Stirnfläche des anderen Rohres in Achsrichtung gegenübersteht, und daß die Stirnfläche des drehbaren Rohres zumindest bei Undichtigkeit der Hauptdichtflächen auf die Stirnfläche des ortsfesten Rohres so aufdrückbar ist, daß die Stirnflächen schmelzendicht aufeinanderstehen und dabei Ersatzdichtflächen bilden.According to the invention, the above object is achieved in a closing and / or regulating member of the type mentioned at the outset in that at least one end face of one pipe faces an end face of the other pipe in the axial direction, and in that the end face of the rotatable pipe, at least when the main sealing faces leak, onto the end face of the stationary tube can be pressed on in such a way that the end faces stand on one another in a melt-tight manner and thereby form replacement sealing faces.
Dadurch ist erreicht, daß sich das Schließ- und/oder Regelorgan auch dann noch weiterverwenden läßt, wenn nach längerem Betrieb der Dichtspalt zwischen den Hauptdichtflächen so weit erweitert ist, daß die Hauptdichtflächen allein einen Schmelzenaustritt nicht mehr unterbinden können.It is thereby achieved that the closing and / or regulating member can still be used even if, after prolonged operation, the sealing gap between the main sealing surfaces is widened to such an extent that the main sealing surfaces alone can no longer prevent melt from escaping.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung von Ausführungsbeispielen. In der Zeichnung zeigen:
Figur 1- ein Schließ- und/oder Regelorgan an einem metallurgischen Gefäß im Schnitt und
Figur 2- ein weiteres Ausführungsbeispiel in einer Fig. 1 entsprechenden Ansicht.
- Figure 1
- a closing and / or regulating element on a metallurgical vessel in section and
- Figure 2
- another embodiment in a Fig. 1 corresponding view.
Am Boden (1) eines metallurgischen Gefäßes (2) ist ein keramisches Rohr (3) befestigt. Das Rohr (3) weist oberhalb des Bodens (1) eine seitliche Öffnung (4) auf. Am Rohr (3) nach Figur 1 ist innenseitig eine Stufung (5) vorgesehen. Dadurch ist am Rohr (3) eine Stirnfläche (6) oberhalb der Öffnung (4) und eine Stirnfläche (7) unterhalb der Öffnung (4) gebildet. Zwischen den Stirnflächen (6, 7) liegt eine kreiszylindrische Hauptdichtfläche (8).A ceramic tube (3) is attached to the bottom (1) of a metallurgical vessel (2). The tube (3) has a lateral opening (4) above the base (1). A step (5) is provided on the inside of the tube (3) according to FIG. 1. As a result, an end face (6) is formed on the tube (3) above the opening (4) and an end face (7) below the opening (4). A circular cylindrical main sealing surface (8) lies between the end faces (6, 7).
In das ein Außenrohr bildendes Rohr (3) ist ein ein Innenrohr bildendes, keramisches Rohr (9) eingesetzt. Dieses ist um die gemeinsame Längsachse (L) der beiden Rohre (3, 9) drehbar. Es weist in der Höhe der Öffnung (4) eine Öffnung (10) auf. Am Rohr (9) ist durch eine außenseitige Stufung (11) eine Stirnfläche (12) oberhalb der Öffnung (10) und eine Stirnfläche (13) unterhalb der Öffnung (10) gebildet. Zwischen den beiden Stirnflächen (12, 13) verläuft eine kreiszylindrische Hauptdichtfläche (14). Die Stirnflächen (6, 7, 12, 13) erstrecken sich radial um die Längsachse (L) und laufen um diese um. Die obere Stirnflächen (12) steht der oberen Stirnfläche (6) gegenüber. Die untere Stirnfläche (13) steht der unteren Stirnfläche (7) axial gegenüber.A ceramic tube (9) forming an inner tube is inserted into the tube (3) forming an outer tube. This can be rotated about the common longitudinal axis (L) of the two tubes (3, 9). It has an opening (10) at the height of the opening (4). An end face (12) above the opening (10) and an end face (13) below the opening (10) are formed on the tube (9) by an outside step (11). A circular cylindrical main sealing surface (14) runs between the two end faces (12, 13). The end faces (6, 7, 12, 13) extend radially around the longitudinal axis (L) and run around it. The upper end faces (12) face the upper end face (6). The lower end face (13) is axially opposite the lower end face (7).
Das Ausführungsbeispiel nach Figur 2 unterscheidet sich von dem der Figur 1 dadurch, daß das ortsfeste Rohr (3) als Innenrohr und das drehbare Rohr (9) als Außenrohr ausgebildet sind. Entsprechende Teile sind mit gleichen Bezugszeichen versehen.The embodiment of Figure 2 differs from that of Figure 1 in that the fixed tube (3) as an inner tube and the rotatable tube (9) are designed as an outer tube. Corresponding parts are provided with the same reference symbols.
Bei der in den Figuren 1 und 2 dargestellten Drehstellung des Rohres (9) decken sich die Öffnungen (4, 10), so daß im Gefäß (2) enthaltene Schmelze durch die Öffnungen (4, 10) durchtritt und nach unten aus dem Gefäß (2) ausströmt.In the rotational position of the tube (9) shown in FIGS. 1 and 2, the openings (4, 10) overlap, so that melt contained in the vessel (2) passes through the openings (4, 10) and downwards out of the vessel ( 2) flows out.
Soll der Schmelzenaustritt unterbrochen werden, dann wird das Rohr (9) um die Längsachse (L) gedreht, so daß sich die Öffnungen (4, 10) nicht mehr decken. Ein zwischen diesen bestehender Spalt ist so klein bemessen, daß Schmelze zwischen den Hauptdichtflächen (8, 14) nicht hindurchtritt.If the melt outlet is to be interrupted, the tube (9) is rotated about the longitudinal axis (L) so that the openings (4, 10) no longer coincide. A gap existing between these is dimensioned so small that melt does not pass between the main sealing surfaces (8, 14).
Im Laufe der Zeit kann sich der Spalt zwischen den Hauptdichtflächen (8, 14) erweitern, so daß der Spalt schmelzendurchlässig wird.Over time, the gap between the main sealing surfaces (8, 14) can widen, so that the gap becomes permeable to melt.
Um auch in diesem Fall einen Schmelzenaustritt zu verhindern, ist das Rohr (9) mit einem Preßdruck in Richtung des Pfeiles (P) beaufschlagbar. Durch den Preßdruck wird die obere Stirnfläche (12) des Rohres (9) auf die obere Stirnfläche (6) des Rohres (3) gedrückt. Die untere Stirnfläche (13) des Rohres (9) wird auf die untere Stirnfläche (7) des Rohres (3) gedrückt. Dadurch werden die Stirnflächen zu Ersatzdichtflächen, die einen Schmelzenaustritt verhindern. Es kann auch genügen, wenn durch den Preßdruck nur die oberen Stirnflächen (12, 6) oder die unteren Stirnflächen (13, 7) aufeinandergedrückt werden.In order to prevent melt from escaping in this case as well, the pipe (9) can be pressurized in the direction of the arrow (P). The upper end face (12) of the tube (9) is pressed onto the upper end face (6) of the tube (3) by the pressure. pressed. The lower end face (13) of the tube (9) is pressed onto the lower end face (7) of the tube (3). As a result, the end faces become replacement sealing surfaces that prevent the melt from escaping. It may also be sufficient if only the upper end faces (12, 6) or the lower end faces (13, 7) are pressed together by the pressing pressure.
Der Preßdruck liegt zwischen 0,1 bar und 10 bar. Der notwendige Preßdruck ist immer größer als der Druck (Ds) in der Schmelze. Dieser hängt von der Badspiegelhöhe (h) der Schmelze ab, wobei
Rs die Dichte der Schmelze und g die Erdbeschleunigung ist.The pressure is between 0.1 bar and 10 bar. The necessary pressure is always higher than the pressure (Ds) in the melt. This depends on the bath level height (h) of the melt, whereby
Rs is the density of the melt and g is the acceleration due to gravity.
Die Stirnflächen (6, 7, 12, 13) können aus dem gleichen Material wie die Rohre (3, 9) bestehen. Es ist jedoch auch möglich, an den Stirnflächen (6, 7, 12, 13) Einsätze aus einer Oxidkeramik, wie Al₂O₃ oder ZrO₂ vorzusehen. Die Einsätze können auch aus Bornitrit und/oder Graphit bestehen.The end faces (6, 7, 12, 13) can be made of the same material as the tubes (3, 9). However, it is also possible to provide inserts made of an oxide ceramic such as Al₂O₃ or ZrO₂ on the end faces (6, 7, 12, 13). The inserts can also consist of boron nitride and / or graphite.
Die Ersatzdichtflächen können flächig eben oder profiliert sein, wobei für die Ersatzdichtflächen eine Labyrinthform entsteht.The replacement sealing surfaces can be flat or profiled, a labyrinth shape being created for the replacement sealing surfaces.
Die Ersatzdichtflächen (6, 12) und/oder (7, 13) brauchen nicht ständig mittels des zum Abdichten erforderlichen Preßdrucks aufeinandergedrückt zu sein. Es genügt, die Ersatzdichtflächen nur dann aufeinanderzudrücken, wenn die Hauptdichtflächen (8, 14) selbst nicht mehr hinreichend dicht sind. Allerdings muß in diesem Fall die Undichtigkeit der Hauptdichtflächen (8, 14) erst festgestellt werden. Um dies zu vermeiden, kann das Rohr (9) immer dann mit dem Preßdruck beaufschlagt sein, wenn das Rohr (9) in seiner Schließstellung steht. Das Rohr (9) auch dann mit dem Preßdruck zu beaufschlagen, wenn das Rohr (9) verdreht wird, erscheint ungünstig, da die Verdrehbarkeit dann erschwert ist und die Ersatzdichtflächen durch die Drehung beansprucht würden.The replacement sealing surfaces (6, 12) and / or (7, 13) do not need to be constantly pressed together by means of the pressing pressure required for sealing. It is sufficient to press the replacement sealing surfaces only when the main sealing surfaces (8, 14) themselves are no longer sufficiently tight. However, in In this case, the leakage of the main sealing surfaces (8, 14) can only be determined. In order to avoid this, the tube (9) can always be pressurized when the tube (9) is in its closed position. Applying the pressure to the tube (9) even when the tube (9) is rotated appears to be unfavorable, since it is then difficult to rotate and the replacement sealing surfaces would be stressed by the rotation.
Claims (8)
dadurch gekennzeichnet,
daß wenigstens eine Stirnfläche (6, 7) des einen Rohres (3) einer Stirnfläche (12, 13) des anderen Rohres (9) in Achsrichtung gegenübersteht, und daß die Stirnfläche (12, 13) des drehbaren Rohres (9) zumindest bei Undichtigkeit der Hauptdichtflächen (8, 14) auf die Stirnfläche (6, 7) des ortsfesten Rohres (3) so aufdrückbar ist, daß die Stirnflächen (6, 12 und/oder 7, 13) schmelzendicht aufeinanderstehen und dabei Ersatzdichtflächen bilden.Closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with a vertical, ceramic inner tube with at least one lateral opening and with a ceramic outer tube with at least one lateral opening, one tube being stationary and the other tube being rotatable relative thereto and the tubes form circular cylindrical main sealing surfaces next to the openings and have end faces which extend radially around the common longitudinal axis of the tubes,
characterized,
that at least one end face (6, 7) of one pipe (3) faces an end face (12, 13) of the other pipe (9) in the axial direction, and that the end face (12, 13) of the rotatable pipe (9) at least in the event of a leak the main sealing surfaces (8, 14) can be pressed onto the end surface (6, 7) of the stationary tube (3) in such a way that the end surfaces (6, 12 and / or 7, 13) stand on one another in a melt-tight manner and thereby form replacement sealing surfaces.
dadurch gekennzeichnet,
daß das drehbare Rohr (9) mit seiner Stirnfläche (12 und/oder 13) nur dann auf die zugeordnete Stirnfläche 6 und/oder 7) des ortsfesten Rohres (3) aufgedrückt ist, wenn es in Schließstellung steht.Locking and / or regulating element according to claim 1,
characterized,
that the rotatable tube (9) with its end face (12 and / or 13) is only pressed onto the associated end face 6 and / or 7) of the stationary tube (3) when it is in the closed position.
dadurch gekennzeichnet,
daß der Preßdruck, mit dem das drehbare Rohr (9) auf das ortsfeste Rohr (3) aufgedrückt wird, zwischen 0,1 bar und 10 bar liegt.Locking and / or regulating element according to one of the preceding claims,
characterized,
that the pressing pressure with which the rotatable tube (9) is pressed onto the stationary tube (3) is between 0.1 bar and 10 bar.
dadurch gekennzeichnet,
daß der Preßdruck, mit dem das drehbare Rohr (9) auf das ortsfeste Rohr (3) aufgedrückt wird, größer als der in der Schmelze herrschende Druck ist.Locking and / or regulating element according to one of the preceding claims,
characterized,
that the pressing pressure with which the rotatable tube (9) is pressed onto the stationary tube (3) is greater than the pressure prevailing in the melt.
dadurch gekennzeichnet,
daß die Stirnflächen (6, 7, 12, 13) von Stufungen (5, 11) der Rohre (3, 9) gebildet sind, wobei jeweils eine Stirnfläche (6, 12) oberhalb der Öffnung (4, 10) und eine Stirnfläche (7, 13) unterhalb der Öffnung (4, 10) liegt und zwischen den oberen (6, 12) und den unteren Stirnflächen (7, 13) die Hauptdichtflächen (8, 14) verlaufen.Locking and / or regulating element according to one of the preceding claims,
characterized,
that the end faces (6, 7, 12, 13) are formed by steps (5, 11) of the tubes (3, 9), one end face (6, 12) above the opening (4, 10) and one end face ( 7, 13) lies below the opening (4, 10) and the main sealing surfaces (8, 14) run between the upper (6, 12) and the lower end faces (7, 13).
dadurch gekennzeichnet,
daß die Ersatzdichtflächen von den unteren (7, 13) und/oder den oberen Stirnflächen (6, 12) gebildet sind.Closing and / or regulating element according to claim 5,
characterized,
that the replacement sealing surfaces are formed by the lower (7, 13) and / or the upper end surfaces (6, 12).
dadurch gekennzeichnet,
daß an den Stirnflächen (6, 7, 12, 13) Einsätze angeordnet sind.Locking and / or regulating element according to one of the preceding claims,
characterized,
that inserts are arranged on the end faces (6, 7, 12, 13).
dadurch gekennzeichnet,
daß die Stirnflächen (6, 7, 12, 13) profiliert sind.Locking and / or regulating element according to one of the preceding claims,
characterized,
that the end faces (6, 7, 12, 13) are profiled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3939241 | 1989-11-28 | ||
| DE3939241A DE3939241C2 (en) | 1989-11-28 | 1989-11-28 | Locking and / or regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0429860A2 true EP0429860A2 (en) | 1991-06-05 |
| EP0429860A3 EP0429860A3 (en) | 1992-04-15 |
Family
ID=6394307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19900120544 Withdrawn EP0429860A3 (en) | 1989-11-28 | 1990-10-26 | Shut-off and/or control element |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5085344A (en) |
| EP (1) | EP0429860A3 (en) |
| JP (1) | JP2946237B2 (en) |
| KR (1) | KR100193277B1 (en) |
| CN (1) | CN1047117C (en) |
| BR (1) | BR9005994A (en) |
| CA (1) | CA2030944A1 (en) |
| DE (1) | DE3939241C2 (en) |
| RU (1) | RU1838046C (en) |
| ZA (1) | ZA908779B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693338A1 (en) * | 1994-07-22 | 1996-01-24 | Stopinc Aktiengesellschaft | Refractory closing element for a closure device of molten metal-containing vessel with an outlet nozzle |
| DE19510381B4 (en) * | 1994-03-23 | 2004-02-12 | Mazda Motor Corp. | Low-pressure casting machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5798051A (en) * | 1996-03-29 | 1998-08-25 | Build A Mold, Ltd. | Sealing device for molten metal valve pin |
| US6578622B2 (en) | 2001-02-26 | 2003-06-17 | Siemens Vdo Automotive Inc. | Core cast manifold assembly |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1558285A1 (en) * | 1921-05-15 | 1970-05-06 | Weinreich Dr Ing Wolfgang | Bottom closure for pouring pans |
| LU67368A1 (en) * | 1972-04-08 | 1973-06-18 | ||
| DE3540202C1 (en) * | 1985-11-13 | 1986-11-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Inflow regulating element for mould level control in a continuous casting plant |
| EP0308597A2 (en) * | 1987-09-19 | 1989-03-29 | Didier-Werke Ag | Rotary sliding gate for a metallugical vessel just as rotor and or stator for such a rotary gate |
| EP0356618A1 (en) * | 1988-08-02 | 1990-03-07 | Didier-Werke Ag | Shut-off and/or control element for tapping molten metal melts from a metallurgical container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3651998A (en) * | 1970-09-23 | 1972-03-28 | Metallurg Exoproducts Corp | Nozzle for a pouring ladle |
| FR2471789A1 (en) * | 1979-12-18 | 1981-06-26 | Cardiofrance Co | MULTIPURPOSE IMPLANTABLE CARDIAC STIMULATOR AND METHOD OF USING THE STIMULATOR |
| DE3809072A1 (en) * | 1988-03-18 | 1989-09-28 | Didier Werke Ag | TURN AND / OR SLIDE LOCK AND ITS LOCKING PARTS |
-
1989
- 1989-11-28 DE DE3939241A patent/DE3939241C2/en not_active Expired - Fee Related
-
1990
- 1990-10-26 EP EP19900120544 patent/EP0429860A3/en not_active Withdrawn
- 1990-11-01 ZA ZA908779A patent/ZA908779B/en unknown
- 1990-11-22 JP JP2315707A patent/JP2946237B2/en not_active Expired - Lifetime
- 1990-11-22 KR KR1019900018971A patent/KR100193277B1/en not_active IP Right Cessation
- 1990-11-27 RU SU904831670A patent/RU1838046C/en active
- 1990-11-27 US US07/618,947 patent/US5085344A/en not_active Expired - Fee Related
- 1990-11-27 BR BR909005994A patent/BR9005994A/en not_active IP Right Cessation
- 1990-11-27 CN CN90109441A patent/CN1047117C/en not_active Expired - Fee Related
- 1990-11-27 CA CA002030944A patent/CA2030944A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1558285A1 (en) * | 1921-05-15 | 1970-05-06 | Weinreich Dr Ing Wolfgang | Bottom closure for pouring pans |
| LU67368A1 (en) * | 1972-04-08 | 1973-06-18 | ||
| DE3540202C1 (en) * | 1985-11-13 | 1986-11-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Inflow regulating element for mould level control in a continuous casting plant |
| EP0308597A2 (en) * | 1987-09-19 | 1989-03-29 | Didier-Werke Ag | Rotary sliding gate for a metallugical vessel just as rotor and or stator for such a rotary gate |
| EP0356618A1 (en) * | 1988-08-02 | 1990-03-07 | Didier-Werke Ag | Shut-off and/or control element for tapping molten metal melts from a metallurgical container |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19510381B4 (en) * | 1994-03-23 | 2004-02-12 | Mazda Motor Corp. | Low-pressure casting machine |
| EP0693338A1 (en) * | 1994-07-22 | 1996-01-24 | Stopinc Aktiengesellschaft | Refractory closing element for a closure device of molten metal-containing vessel with an outlet nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1052269A (en) | 1991-06-19 |
| ZA908779B (en) | 1991-08-28 |
| CA2030944A1 (en) | 1991-05-29 |
| JPH03169476A (en) | 1991-07-23 |
| JP2946237B2 (en) | 1999-09-06 |
| DE3939241C2 (en) | 1994-09-01 |
| DE3939241A1 (en) | 1991-05-29 |
| BR9005994A (en) | 1991-09-24 |
| RU1838046C (en) | 1993-08-30 |
| EP0429860A3 (en) | 1992-04-15 |
| KR100193277B1 (en) | 1999-06-15 |
| KR910009370A (en) | 1991-06-28 |
| US5085344A (en) | 1992-02-04 |
| CN1047117C (en) | 1999-12-08 |
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