EP1160030A1 - Device for casting molten metal - Google Patents

Device for casting molten metal Download PDF

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Publication number
EP1160030A1
EP1160030A1 EP01112233A EP01112233A EP1160030A1 EP 1160030 A1 EP1160030 A1 EP 1160030A1 EP 01112233 A EP01112233 A EP 01112233A EP 01112233 A EP01112233 A EP 01112233A EP 1160030 A1 EP1160030 A1 EP 1160030A1
Authority
EP
European Patent Office
Prior art keywords
opening
elevation
diving bell
spout
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01112233A
Other languages
German (de)
French (fr)
Other versions
EP1160030B1 (en
Inventor
Herr Walter Hetsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hetsch Walter
Original Assignee
FTS Feuerfestprodukte GmbH
Hetsch Walter
DaimlerChrysler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FTS Feuerfestprodukte GmbH, Hetsch Walter, DaimlerChrysler AG filed Critical FTS Feuerfestprodukte GmbH
Publication of EP1160030A1 publication Critical patent/EP1160030A1/en
Application granted granted Critical
Publication of EP1160030B1 publication Critical patent/EP1160030B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • 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

Definitions

  • the invention relates to a pouring device for liquid metal, in the bottom of a Spout for emptying the pouring device is provided, the opening through a vertically movable diving bell is closable.
  • Pouring devices of this type are used, for example, in foundries to dispense liquid Metal (such as iron, steel, aluminum, gray cast iron, nodular cast iron, graphite cast iron, etc.) e.g. in Pouring watering boxes.
  • liquid Metal such as iron, steel, aluminum, gray cast iron, nodular cast iron, graphite cast iron, etc.
  • spout made of refractory material in the floor embedded, which is flush with the bottom of the pouring device.
  • the spout will closed by a rod-shaped plug, the generally rounded end of which Closes the opening of the spout and can be raised for the pouring process, whereby the opening is released.
  • the object of the invention is therefore to ensure that virtually everything in the Pouring device located metal can be shed without the risk of a Pouring slag.
  • This object is achieved in that the spout to its Interior of the potting device facing an elevation, so that the Opening is arranged above the bottom of the potting device and that the diving bell has on its underside a recess corresponding to the elevation, so that the spout is positively closable by the diving bell.
  • An embodiment of the invention is that the elevation or the recess in is essentially semicircular.
  • Another training is that the collection or recess in is essentially conical.
  • the diameter of the diving bell is in its lower Area increases towards the lower end.
  • the diving bell is radial Has protrusions for holding slag.
  • the potting device according to the invention consists of a Container, in the bottom 1 of which a spout 2 is arranged.
  • This spout 2 has one Opening 3 through which the pouring device is emptied.
  • a survey 4 arranged so that the opening 3 above the bottom 1 of the Potting device is arranged.
  • the elevation 4 can instead of semicircular as here be of any other shape, e.g. be conical. Through this Elevation 4 is prevented at the end of the casting process on the metal floating slag emerges from the pouring device.
  • the bottom of the diving bell 5 which closes the opening 6 has that of the opening 3 is facing, a recess 7, the shape of which corresponds to the elevation 4, so that the Diving bell 5, when it sits on the elevation 4, the opening 3 form-fitting closes.
  • the metal thus enters the gap between the spout when the diving bell 5 is open 2 and diving bell 5, runs upwards to the opening 3 and leaves through the Pouring device.
  • the slag is here by the shape of the diving bell 5 and Elevation 4 prevented from exiting the pouring device, the amount of Elevation 4 and the recess 7 of the diving bell 5 adapted to the respective conditions can be.
  • the lower region 8 of the diving bell 5 can one to the free end of the Diving bell 5 have increasing diameter.
  • Projections 9 be provided in order to prevent the slag from entering the opening 3 at the end of the casting process to prevent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

A casting vessel has a raised tap hole opening region (4) conforming with a stopper bottom recess (7) for closing the tap hole (2). A molten metal casting vessel has a bottom tap hole (2) which can be closed by a vertically movable stopper (5) and which has a raised region (4) about its opening (3) facing the ladle interior so that the opening (3) is located above the ladle bottom (1), the stopper (5) having a corresponding recessed region (7) at its base (6) for conforming with the raised region to close the tap hole (2).

Description

Die Erfindung betrifft eine Vergießeinrichtung für flüssiges Metall, in deren Boden ein Ausguß zum Entleeren der Vergießeinrichtung vorgesehen ist, dessen Öffnung durch eine in vertikaler Richtung bewegliche Tauchglocke verschließbar ist.The invention relates to a pouring device for liquid metal, in the bottom of a Spout for emptying the pouring device is provided, the opening through a vertically movable diving bell is closable.

Derartige Vergießeinrichtungen werden beispielsweise in Gießereien verwendet, um flüssiges Metall (wie Eisen, Stahl, Aluminium, Grauguß, Sphäroguß, Graphitguß, usw.) z.B. in Gießkästen zu gießen. In aller Regel ist im Boden ein Ausguß aus Feuerfestmaterial eingelassen, der bündig mit dem Boden der Vergießeinrichtung abschließt. Der Ausguß wird durch einen stabförmigen Stopfen verschlossen, dessen in der Regel abgerundetes Ende die Öffnung des Ausgusses verschließt und der für den Gießvorgang angehoben werden kann, wodurch die Öffnung freigegeben wird. Hierbei ergibt sich das Problem, daß, wenn der Gießvorgang nicht rechtzeitig beendet wird, die auf dem flüssigen Metall aufschwimmende Schlacke am Ende des Gießvorganges aus der Vergießeinrichtung austritt und die jeweiligen Chargen verunreinigt. Wird andererseits der Gießvorgang zu früh abgebrochen, verbleibt Metall ungenutzt in der Vergießeinrichtung, was ebenfalls von Nachteil ist.Pouring devices of this type are used, for example, in foundries to dispense liquid Metal (such as iron, steel, aluminum, gray cast iron, nodular cast iron, graphite cast iron, etc.) e.g. in Pouring watering boxes. As a rule, there is a spout made of refractory material in the floor embedded, which is flush with the bottom of the pouring device. The spout will closed by a rod-shaped plug, the generally rounded end of which Closes the opening of the spout and can be raised for the pouring process, whereby the opening is released. The problem arises here that when the Casting process is not finished in time, the floating on the liquid metal Slag emerges from the pouring device at the end of the pouring process and the respective one Batches contaminated. On the other hand, if the casting process is stopped too soon, remains Metal unused in the casting device, which is also a disadvantage.

Aufgabe der Erfindung ist es somit, sicherzustellen, daß praktisch das gesamte in der Vergießeinrichtung befindliche Metall vergossen werden kann, ohne daß die Gefahr eines Vergießens von Schlacke besteht.The object of the invention is therefore to ensure that virtually everything in the Pouring device located metal can be shed without the risk of a Pouring slag.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Ausguß um seine dem Innenbereich der Vergießeinrichtung zugewandte Öffnung eine Erhebung aufweist, so daß die Öffnung oberhalb des Bodens der Vergießeinrichtung angeordnet ist und daß die Tauchglocke an ihrer Unterseite eine der Erhebung entsprechende Aussparung aufweist, so daß der Ausguß durch die Tauchglocke formschlüssig verschließbar ist.This object is achieved in that the spout to its Interior of the potting device facing an elevation, so that the Opening is arranged above the bottom of the potting device and that the diving bell has on its underside a recess corresponding to the elevation, so that the spout is positively closable by the diving bell.

Da die leichtere Schlacke auf dem Metall aufschwimmt, tritt bei angehobener Tauchglocke, also bei geöffnetem Ausguß das Metall von unten in die Aussparung der Tauchglocke ein und verläßt die Vergießeinrichtung durch die Öffnung. Die Tauchglocke hält die Schlacke zurück, bis kein Metall mehr in der Vergießeinrichtung enthalten ist und die Schlacke am Boden der Vergießeinrichtung angelangt ist. Die um die Öffnung des Ausgusses angeordnete Öffnung verhindert dann das Austreten der Schlacke.Since the lighter slag floats on the metal, when the diving bell is raised, So with the spout open, insert the metal from below into the recess in the diving bell and leaves the pouring device through the opening. The diving bell holds back the slag, until there is no more metal in the casting device and the slag at the bottom of the Pouring device has arrived. The opening arranged around the opening of the spout then prevents the slag from escaping.

Eine Ausbildung der Erfindung besteht darin, daß die Erhebung bzw. die Aussparung im wesentlichen halbkreisförmig ausgebildet ist.An embodiment of the invention is that the elevation or the recess in is essentially semicircular.

Eine andere Ausbildung besteht darin, daß die Erhebung bzw. die Aussparung im wesentlichen konisch ausgebildet ist.Another training is that the collection or recess in is essentially conical.

Im Rahmen der Erfindung liegt auch, daß der Durchmesser der Tauchglocke in ihrem unteren Bereich zu dem unteren Ende hin zunimmt.It is also within the scope of the invention that the diameter of the diving bell is in its lower Area increases towards the lower end.

Schließlich besteht eine Weiterbildung der Erfindung darin, daß die Tauchglocke radiale Vorsprünge zum Abhalten von Schlacke aufweist.Finally, a development of the invention is that the diving bell is radial Has protrusions for holding slag.

Die Vorteile der Erfindung bestehen im wesentlichen darin, daß ein schlackenfreieres Gießen möglich wird, was aufgrund der dadurch erzielbaren geringeren Menge an Einschlüssen im gegossenen Metall eine Qualitätssteigerung bedeutet. Weiterhin sind auf diese Weise längere Gießzeiten möglich, da das in der Vergießeinrichtung enthaltene Metall praktisch vollständig entleert werden kann.The advantages of the invention consist essentially in that a slag-free casting What is possible because of the lower amount of inclusions that can be achieved in this way cast metal means an increase in quality. They are also longer in this way Pouring times possible because the metal contained in the casting device is practically complete can be emptied.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung erläutert.An exemplary embodiment of the invention is explained below with reference to a drawing.

Es zeigt

Fig. 1
eine geschnittene Darstellung einer erfindungsgemäßen Vergießeinrichtung.
It shows
Fig. 1
a sectional view of a potting device according to the invention.

Wie in Fig. 1 dargestellt, besteht die erfindungsgemäße Vergießeinrichtung aus einem Behälter, in dessen Boden 1 ein Ausguß 2 angeordnet ist. Dieser Ausguß 2 weist eine Öffnung 3 auf, durch die die Vergießeinrichtung entleert wird. Um die Öffnung 3 herum ist eine Erhebung 4 angeordnet, so daß die Öffnung 3 oberhalb des Bodens 1 der Vergießeinrichtung angeordnet ist. Die Erhebung 4 kann, statt wie hier halbkreisförmig zu sein, beliebige andere Formen aufweisen, z.B. konisch ausgebildet sein. Durch diese Erhebung 4 wird verhindert, daß am Ende des Gießvorganges die auf dem Metall aufschwimmende Schlacke aus der Vergießeinrichtung austritt.As shown in Fig. 1, the potting device according to the invention consists of a Container, in the bottom 1 of which a spout 2 is arranged. This spout 2 has one Opening 3 through which the pouring device is emptied. Around the opening 3 is a survey 4 arranged so that the opening 3 above the bottom 1 of the Potting device is arranged. The elevation 4 can instead of semicircular as here be of any other shape, e.g. be conical. Through this Elevation 4 is prevented at the end of the casting process on the metal floating slag emerges from the pouring device.

Die die Öffnung verschließende Tauchglocke 5 weist an ihrer Unterseite 6, die der Öffnung 3 zugewandt ist, eine Aussparung 7 auf, deren Form der der Erhebung 4 entspricht, so daß die Tauchglocke 5, wenn sie auf der Erhebung 4 aufsitzt, die Öffnung 3 formschlüssig verschließt. Das Metall tritt also bei geöffneter Tauchglocke 5 in den Spalt zwischen Ausguß 2 und Tauchglocke 5 ein, läuft nach oben zu der Öffnung 3 und verläßt durch diese die Vergießeinrichtung. Die Schlacke wird hierbei durch die Form der Tauchglocke 5 und der Erhebung 4 am Austreten aus der Vergießeinrichtung gehindert, wobei die Höhe der Erhebung 4 und die Aussparung 7 der Tauchglocke 5 den jeweiligen Verhältnissen angepaßt werden können.The bottom of the diving bell 5 which closes the opening 6 has that of the opening 3 is facing, a recess 7, the shape of which corresponds to the elevation 4, so that the Diving bell 5, when it sits on the elevation 4, the opening 3 form-fitting closes. The metal thus enters the gap between the spout when the diving bell 5 is open 2 and diving bell 5, runs upwards to the opening 3 and leaves through the Pouring device. The slag is here by the shape of the diving bell 5 and Elevation 4 prevented from exiting the pouring device, the amount of Elevation 4 and the recess 7 of the diving bell 5 adapted to the respective conditions can be.

Wie dargestellt, kann der untere Bereich 8 der Tauchglocke 5 einen zum freien Ende der Tauchglocke 5 hin zunehmenden Durchmesser aufweisen. Weiterhin können Vorsprünge 9 vorgesehen sein, um am Ende des Gießvorganges das Eintreten der Schlacke in die Öffnung 3 zu verhindern.As shown, the lower region 8 of the diving bell 5 can one to the free end of the Diving bell 5 have increasing diameter. Projections 9 be provided in order to prevent the slag from entering the opening 3 at the end of the casting process to prevent.

Claims (5)

Vergießeinrichtung für flüssiges Metall, in deren Boden ein Ausguß zum Entleeren der Vergießeinrichtung vorgesehen ist, dessen Öffnung durch eine in vertikaler Richtung bewegliche Tauchglocke verschließbar ist, dadurch gekennzeichnet, daß der Ausguß (2) um seine dem Innenbereich der Vergießeinrichtung zugewandte Öffnung (3) eine Erhebung (4) aufweist, so daß die Öffnung (3) oberhalb des Bodens (1) der Vergießeinrichtung angeordnet ist und daß die Tauchglocke (5) an ihrer Unterseite (6) eine der Erhebung (4) entsprechende Aussparung (7) aufweist, so daß der Ausguß (2) durch die Tauchglocke (5) formschlüssig verschließbar ist.Pouring device for liquid metal, in the bottom of which a spout is provided for emptying the potting device, the opening of which can be closed by a vertically movable diving bell, characterized in that the spout (2) has an opening (3) around its opening facing the interior of the potting device Elevation (4), so that the opening (3) above the bottom (1) of the potting device and that the diving bell (5) on its underside (6) has a recess (7) corresponding to the elevation (4), so that the spout (2) by the diving bell (5) can be closed positively. Vergießeinrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Erhebung (4) bzw. die Aussparung (7) im wesentlichen halbkreisförmig ausgebildet ist.Potting device according to claim 1, characterized in that the elevation (4) or the recess (7) is substantially semicircular. Vergießeinrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Erhebung (4) bzw. die Aussparung (7) im wesentlichen konisch ausgebildet ist.Potting device according to claim 1, characterized in that the elevation (4) or the recess (7) is substantially conical. Vergießeinrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser der Tauchglocke (5) in ihrem unteren Bereich (8) zu dem unteren Ende hin zunimmt.Potting device according to claim 1, characterized in that the diameter of the diving bell (5) increases in its lower region (8) towards the lower end. Vergießeinrichtung gemäß Anspruch 3, dadurch gekennzeichnet, daß die Tauchglocke (5) radiale Vorsprünge (9) zum Abhalten von Schlacke aufweist.Pouring device according to claim 3, characterized in that the immersion bell (5) has radial projections (9) for preventing slag.
EP20010112233 2000-05-30 2001-05-18 Device for casting molten metal Expired - Lifetime EP1160030B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20009599U DE20009599U1 (en) 2000-05-30 2000-05-30 Pouring device for liquid metal
DE20009599U 2000-05-30

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EP1160030A1 true EP1160030A1 (en) 2001-12-05
EP1160030B1 EP1160030B1 (en) 2006-12-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913730B2 (en) 2001-06-08 2005-07-05 Vesuvius Crucible Company Stopper rod
WO2006117508A1 (en) * 2005-05-03 2006-11-09 Foseco International Limited Tundish stopper rod for continuous molten metal casting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20009599U1 (en) * 2000-05-30 2000-10-12 FTS Feuerfestprodukte GmbH, 67729 Sippersfeld Pouring device for liquid metal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1063860A (en) * 1951-05-29 1954-05-07 Slag-free casting process and device for its implementation
US5025961A (en) * 1989-08-12 1991-06-25 Didier-Werke Ag Refractory shutoff assembly capable of improved emergency closing
JPH0847753A (en) * 1994-08-08 1996-02-20 Nippon Steel Corp Continuous casting apparatus
DE20009599U1 (en) * 2000-05-30 2000-10-12 FTS Feuerfestprodukte GmbH, 67729 Sippersfeld Pouring device for liquid metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1063860A (en) * 1951-05-29 1954-05-07 Slag-free casting process and device for its implementation
US5025961A (en) * 1989-08-12 1991-06-25 Didier-Werke Ag Refractory shutoff assembly capable of improved emergency closing
JPH0847753A (en) * 1994-08-08 1996-02-20 Nippon Steel Corp Continuous casting apparatus
DE20009599U1 (en) * 2000-05-30 2000-10-12 FTS Feuerfestprodukte GmbH, 67729 Sippersfeld Pouring device for liquid metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913730B2 (en) 2001-06-08 2005-07-05 Vesuvius Crucible Company Stopper rod
WO2006117508A1 (en) * 2005-05-03 2006-11-09 Foseco International Limited Tundish stopper rod for continuous molten metal casting

Also Published As

Publication number Publication date
DE50111665D1 (en) 2007-02-01
DE20009599U1 (en) 2000-10-12
EP1160030B1 (en) 2006-12-20

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