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DE3903039A1 - Device for vacuum casting - Google Patents

Device for vacuum casting

Info

Publication number
DE3903039A1
DE3903039A1 DE19893903039 DE3903039A DE3903039A1 DE 3903039 A1 DE3903039 A1 DE 3903039A1 DE 19893903039 DE19893903039 DE 19893903039 DE 3903039 A DE3903039 A DE 3903039A DE 3903039 A1 DE3903039 A1 DE 3903039A1
Authority
DE
Germany
Prior art keywords
pouring
spout
protection tube
slide plate
vacuum casting
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
DE19893903039
Other languages
German (de)
Other versions
DE3903039C2 (en
Inventor
Harald Dipl Ing Kern
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.)
Kloeckner Stahl GmbH
Original Assignee
Kloeckner Stahl GmbH
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 Kloeckner Stahl GmbH filed Critical Kloeckner Stahl GmbH
Priority to DE19893903039 priority Critical patent/DE3903039A1/en
Publication of DE3903039A1 publication Critical patent/DE3903039A1/en
Application granted granted Critical
Publication of DE3903039C2 publication Critical patent/DE3903039C2/de
Granted legal-status Critical Current

Links

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
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

In order to improve the sealing action of the seal which can be closed off airtightly and is provided between the nozzle and the casting stream protective pipe, it is proposed to make the casting stream protective pipe and the nozzle in one piece (14). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Vakuumgießen, mit einem Schieber, einem Ausguß und einem Gießstrahlschutzrohr sowie einer den Ausguß und das Gießstrahlschutzrohr gegenein­ ander luftdicht abschließenden Dichtung.The invention relates to a device for vacuum casting, with a slide, a spout and a pouring tube and one against the spout and the pouring jet protection tube the airtight seal.

Das Vakuumgießen wird zu dem Zweck durchgeführt, einen Reoxidationsschutz zu bilden. Hierdurch wird bewirkt, daß der Sauerstoffzutritt zur Schmelze verhindert wird.The vacuum casting is carried out for the purpose of one Form reoxidation protection. This causes the Oxygen access to the melt is prevented.

Nach dem Stand der Technik wird zum Beispiel in einer Gießpfanne an einen Verteilerausguß ein aus mindestens einer Schieberplatte bestehender Schieber, der eigentliche Ausguß und ein Gießstrahl­ schutzrohr hintereinander angeordnet. Aufgrund der von vorn­ herein zwischen dem Verteilerausguß und dem Schieber sowie dem Schieber und dem Ausguß an den Grenzflächen vorgesehenen Mörtelfugen sind die dortigen Anschlußstellen unproblematisch. Da das Gießstrahlschutzrohr jedoch in einen Gießstrahlschutz­ rohrhalter eingehängt und hiermit an den Ausguß angedrückt werden soll, mangelt es häufig an einer entsprechenden Dichtung beim Übergang des Ausgusses in den Gießstrahlschutzrohrhalter.According to the prior art, for example, in a ladle to a distributor spout from at least one slide plate existing slide, the actual spout and a pouring stream protective tube arranged one behind the other. Because of the front in between the distributor spout and the slide as well as the Slider and the spout provided at the interfaces Mortar joints are no problem at the junctions there. However, since the pouring jet protection tube is in a pouring jet protection tube holder hooked in and hereby pressed onto the spout there is often a lack of an appropriate seal at the transition of the spout into the pouring jet protection tube holder.

Es ist Aufgabe, eine solche Dichtung zu schaffen bzw. die Dichtwirkung an dieser Stelle zu verbessern.It is the task of creating such a seal or the Improve sealing effect at this point.

Die Aufgabe wird bei einem Ausguß dadurch gelöst, daß das Gießstrahlschutzrohr und der Ausguß einteilig gefertigt werden. Diese Ausbildung ist von vornherein hinsichtlich der Dichtigkeit optimal. Weitere vorzugsweise Ausbildungen sind in den Unter­ ansprüchen 2 und 3 beschrieben. The object is achieved with a spout in that the Pouring protection tube and the spout are made in one piece. This training is a priori in terms of tightness optimal. Further preferred training courses are in the sub claims 2 and 3 described.  

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is in the drawing shown.

Die einzige Figur zeigt einen Verteilerausguß 10, z.B. in einer Verteilerrinne, an den sich ein dreiteiliger aus einer oberen Schieberplatte 11, einer mittleren Schieberplatte 12 und einer unteren Schieberplatte 13 bestehender Schieber anschließt. Unterhalb der unteren Schieberplatte ist die erfindungsgemäße einteilige Ausguß-Gießstrahlschutzrohr-Kombination 14 angeord­ net, die im oberen Bereich mit einer Blechummantelung 15 versehen ist, welche auch die untere Schieberplatte 13 umfaßt. Aus Gründen der thermischen Expansion sind die nach dem Stand der Technik bekannten Mörtelfugen 16 zwischen der Ausguß-Gieß­ strahlschutzrohr-Kombination 14 und der unteren Schieberplatte 13 sowie die Mörtelfuge 17 zwischen dem Verteilerausguß 10 und der oberen Schieberplatte 11 vorgesehen. Vorteilhafterweise erspart die einfache Geometrie aufwendige Maßnahmen wie besondere Geometrien z.B. Kugelverbindungen oder Nut-Feder-Systeme und/oder weitere verfahrenstechnische Maßnahmen wie z.B. die Inertisierung durch geeignete gasförmige Medien, die einen Lufteintritt und damit eine Reoxidation des durchfließenden Mediums, z.B. Stahl verhindert.The single figure shows a distributor spout 10 , for example in a distributor channel, to which a three-part slide consisting of an upper slide plate 11 , a middle slide plate 12 and a lower slide plate 13 is connected. Below the lower slide plate, the one-piece pouring pouring tube combination 14 according to the invention is net, which is provided in the upper region with a sheet metal jacket 15 , which also includes the lower slide plate 13 . For reasons of thermal expansion, the mortar joints 16 known from the prior art are provided between the spout-pouring radiation protection tube combination 14 and the lower slide plate 13 and the mortar joint 17 between the distributor spout 10 and the upper slide plate 11 . Advantageously, the simple geometry saves complex measures such as special geometries such as ball joints or tongue and groove systems and / or other procedural measures such as inerting by means of suitable gaseous media, which prevents air from entering and thus reoxidation of the medium flowing through, e.g. steel.

Claims (3)

1. Vorrichtung zum Vakuumgießen, mit einem Schieber, einem Ausguß und einem Gießstrahlschutzrohr sowie einer den Aus­ guß und das Gießstrahlschutzrohr gegeneinander luftdicht abschließenden Dichtung, dadurch gekennzeichnet, daß das Gießstrahlschutzrohr und der Ausguß einteilig (14) gefertigt sind.1. A device for vacuum casting, with a slide, a spout and a pouring protection tube and a seal from the casting and the pouring jet protection tube against each other airtight seal, characterized in that the pouring jet protection tube and the spout are made in one piece ( 14 ). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das einteilige Ausguß-Gießstrahlschutzrohr (14) aus ff-Material besteht, das im oberen Bereich mit einer Blech­ ummantelung (15) umgeben ist.2. Device according to claim 1, characterized in that the one-piece pouring pouring protection tube ( 14 ) consists of ff material, which is surrounded in the upper region with a sheet metal casing ( 15 ). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Blechummantelung bis in den Bereich der untersten Schieberplatte (13) reicht.3. Apparatus according to claim 2, characterized in that the sheet metal casing extends into the area of the lowest slide plate ( 13 ).
DE19893903039 1989-02-02 1989-02-02 Device for vacuum casting Granted DE3903039A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893903039 DE3903039A1 (en) 1989-02-02 1989-02-02 Device for vacuum casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893903039 DE3903039A1 (en) 1989-02-02 1989-02-02 Device for vacuum casting

Publications (2)

Publication Number Publication Date
DE3903039A1 true DE3903039A1 (en) 1990-08-09
DE3903039C2 DE3903039C2 (en) 1991-05-23

Family

ID=6373265

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893903039 Granted DE3903039A1 (en) 1989-02-02 1989-02-02 Device for vacuum casting

Country Status (1)

Country Link
DE (1) DE3903039A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013713A1 (en) * 1990-03-16 1991-09-19 Flo-Con Systems, Inc. Sliding gate valve, method, and replaceable refractories

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501068A (en) * 1968-05-21 1970-03-17 United States Steel Corp Bottom-pour teeming vessel with sliding gate and pouring tube
DE2219064A1 (en) * 1972-01-24 1973-08-02 Uss Eng & Consult METHOD AND DEVICE FOR REPLACING A HOLDER FOR A POUR PIPE ON A CASTING VESSEL PROVIDED WITH A BOTTOM SPOUT
DE2744443C2 (en) * 1977-10-03 1982-04-01 Jörg 4000 Liege Pirdzun Rotary valve lock
DE2924118C2 (en) * 1979-06-15 1983-03-31 Zimmermann & Jansen GmbH, 5160 Düren Slide gate for a ladle
DE3342071C2 (en) * 1983-11-22 1986-08-07 Didier-Werke Ag, 6200 Wiesbaden Device for shielding a metallic pouring stream
DE3422901C2 (en) * 1984-06-20 1987-02-05 Metacon AG, Zürich Process for pouring a metallic melt
DE3620413C2 (en) * 1986-06-18 1989-01-26 Didier-Werke Ag, 6200 Wiesbaden, De

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501068A (en) * 1968-05-21 1970-03-17 United States Steel Corp Bottom-pour teeming vessel with sliding gate and pouring tube
DE2219064A1 (en) * 1972-01-24 1973-08-02 Uss Eng & Consult METHOD AND DEVICE FOR REPLACING A HOLDER FOR A POUR PIPE ON A CASTING VESSEL PROVIDED WITH A BOTTOM SPOUT
DE2744443C2 (en) * 1977-10-03 1982-04-01 Jörg 4000 Liege Pirdzun Rotary valve lock
DE2924118C2 (en) * 1979-06-15 1983-03-31 Zimmermann & Jansen GmbH, 5160 Düren Slide gate for a ladle
DE3342071C2 (en) * 1983-11-22 1986-08-07 Didier-Werke Ag, 6200 Wiesbaden Device for shielding a metallic pouring stream
DE3422901C2 (en) * 1984-06-20 1987-02-05 Metacon AG, Zürich Process for pouring a metallic melt
DE3620413C2 (en) * 1986-06-18 1989-01-26 Didier-Werke Ag, 6200 Wiesbaden, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013713A1 (en) * 1990-03-16 1991-09-19 Flo-Con Systems, Inc. Sliding gate valve, method, and replaceable refractories
EP0819489A3 (en) * 1990-03-16 1998-09-23 Flo-Con Systems Inc. Tube holder refractory insert for use in a sliding gate valve

Also Published As

Publication number Publication date
DE3903039C2 (en) 1991-05-23

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8330 Complete disclaimer