EP1299201A1 - Sliding closure for casting molten metal - Google Patents

Sliding closure for casting molten metal

Info

Publication number
EP1299201A1
EP1299201A1 EP01957934A EP01957934A EP1299201A1 EP 1299201 A1 EP1299201 A1 EP 1299201A1 EP 01957934 A EP01957934 A EP 01957934A EP 01957934 A EP01957934 A EP 01957934A EP 1299201 A1 EP1299201 A1 EP 1299201A1
Authority
EP
European Patent Office
Prior art keywords
closure
slide
slide plate
closure part
housing
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
EP01957934A
Other languages
German (de)
French (fr)
Other versions
EP1299201B1 (en
Inventor
Werner Plattner
Harry Amsler
Wolfgang Müller
Ralf Bock
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.)
Stopinc AG
Hydro Aluminium Deutschland GmbH
Original Assignee
Stopinc AG
Hydro Aluminium Deutschland GmbH
Vereinigte Aluminium Werke 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 Stopinc AG, Hydro Aluminium Deutschland GmbH, Vereinigte Aluminium Werke AG filed Critical Stopinc AG
Priority to SI200130340T priority Critical patent/SI1299201T1/en
Publication of EP1299201A1 publication Critical patent/EP1299201A1/en
Application granted granted Critical
Publication of EP1299201B1 publication Critical patent/EP1299201B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • 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
    • B22D41/40—Means for pressing the plates together

Definitions

  • the invention relates to a slide closure for casting molten metal / with at least one stationary closure part on a casting mold or the like, as well as with a slide plate movable to this, and an associated refractory plate unit.
  • H 3 ⁇ 3 ⁇ C Di: 3 ⁇ ⁇ iQ »- * (- ⁇ • Hi 3 3 3 ⁇ ⁇ ⁇ ⁇ >? ⁇ Di H- Q rt tn tn 3 Di 2 tn • ⁇ r + H- H- iQ 3 iQ iQ tn tn rt 3 ⁇ DJ ⁇
  • a housing frame which can be fastened to the casting mold or the like is provided, in which a detachable housing part is fixed, on which the spring members are held and the stationary closure part and the slide plate can be received.
  • the refractory slide plate and the at least one closure part have graphite, Al-titanate or zircon as the main constituent.
  • FIG. 1 shows a cross section of a slide closure of a partially shown die casting device according to the invention
  • FIG. 2 shows a top view of the slide closure according to FIG. 1;
  • FIG. 3 shows a longitudinal section of the slide closure according to Figure 1;
  • FIG. 5 shows a longitudinal section of a further variant of a slide closure.
  • 1 to 3 show a slide closure 20 which serves to open and close a through opening 13, 14.
  • the slide closure 20 has an upper and a lower stationary closure part 21, 22 as well as a slide plate 24 movable between them, these parts which come into contact with the melt being made of a refractory material.
  • a hint of a die casting device which is preferably used for the rising casting of a light metal alloy, shows the upper end of the riser pipe 11, 12 from a casting furnace, through which the melt is brought upwards into a casting mold 15 shown in the beginning, for this purpose a through opening 13, 14 is provided, the slide closure 20 with the closure part 21 and the slide plate 24 being arranged between the riser pipe 11, 12 and the casting mold 15.
  • the slide plate 24 can be pressed onto the upper stationary closure part 21 by means of spring members 25 or against the lower closure part 22 by other means.
  • the upper closure part 21 and the slide plate 24 sliding below it are pressed against one another by the spring elements 25 and assigned to the casting mold 15, which meanwhile the lower closure part 22 is assigned to the riser pipe 11, 12.
  • the slide plate 24 is pressed tightly onto the upper sliding surface 22 'of the closure part 22, the means for this pressing being able to be provided by the weight of the casting mold 15 and / or by an additional tensioning means, not shown in more detail.
  • This clamping means can be, for example, a docking mechanism by means of which the casting mold is positioned and clamped on the furnace.
  • the lower closure part 22 has a collar 22 ′′ protruding from the top 16 ′ of the riser pipe, which has a height and width such that the spring members 25 can engage under the slide plate 24 on both sides with rocker arms 26.
  • the slide plate 24 could also have a corresponding collar on its underside.
  • a housing frame 32 that can be fastened to the casting mold 15 or the like is provided, in which a detachable housing part 35 is fixed, on which the spring members 25 are held and the stationary closure part 21 and the slide plate 24 can be received.
  • the housing frame 32 and the detachable housing part 35 have mutually corresponding guide surfaces 33, 34, the one guide surface of the housing frame 32 being held approximately displaceably in its longitudinal extent in such a way that the housing part 35 can be clamped in it or released from it ,
  • the guide surface 33 of the housing frame 32 is formed by a wedge 33 ′ projecting on a guide rod 36.
  • This guide rod 36 is held longitudinally displaceably in the housing frame 32 and can be pushed from outside the frame 32 into a position 36.2 bracing the housing part 35, as shown, or into a released position 36.1, in which the housing part 35 out of the frame 32 in particular for a change of the plates 21, 24 can be removed, however, the frame 32 on the mold or the like remains.
  • the guide surfaces 33 of the wedge 33 'and of the housing part 35 are arranged at an angle of a few degrees with respect to the direction of displacement of the wedge 33', so that a non-releasing wedge tension occurs in position 36.2.
  • the guide surfaces 34 are provided with a bevel so that the housing part 35 can be quasi hooked into the frame 32 and it is then fixed therein by moving the wedge 33 '.
  • the riser pipe has a fireproof pouring pipe 11 and a metal pipe 12 holding it with an upper flange 12 ′ which is fastened on a bellows 17.
  • This bellows 17, which is advantageously produced from a metal sheet, is provided with such rigidity that a limited floating bearing is formed with the lower closure part 22, so that a full-surface contact when the slide plate 24 is pressed against this closure part 22 and thus ensures an optimal seal between the two is.
  • the closure part 22 also lies sealingly against a refractory pouring tube 11 held in the metal tube 12, which projects into the melt with its lower end.
  • the spring members 25 have - as can also be seen in FIG. 2 - a rocker arm 26 on each side of the plate 24, each of which is articulated on tabs 28 and acted upon by spring elements 29 on the side facing away from the plate 24, such that the front ⁇ tn ö H- S • xl D ) M «N Di ⁇ N r N tn ⁇ ⁇ IQ 3 ö 3 3 01 H, D- WJ ⁇ rt ⁇ 01 ⁇ ⁇ - tr li ⁇ - d ⁇ ⁇ d ⁇ ⁇ ⁇ 0: ⁇ ⁇ J ⁇ - DJ! O ⁇ ⁇ DJ DJ 3 tn H. DJ I-! c + iQ iQ N. • d
  • graphite is used as the main component and in the at least one adjacent stationary closure part 21, 22, 42, 53, graphite, Al-titanate or zircon is used as the main component.
  • graphite is used for the closure part and graphite, aluminum titanate or zircon is used for the slide plate.
  • the invention has been sufficiently demonstrated with the exemplary embodiments explained above.
  • the construction of the casting furnace with the riser pipe can of course look different than shown.
  • the riser pipe itself could form an upper flat end face and thus the closure part on which the slide plate would be slidably arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Sliding Valves (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

The invention relates to a sliding closure for casting molten metal. A sliding plate (24, 54) and a stationary closure part (21, 42, 53) are pre-stressed against each other with spring mechanisms (25, 45, 55) or other means. A housing frame (32) which can be fixed to a casting mould (15) or similar and in which a detachable housing part (35) is fixed, is provided. The spring mechanisms are held on said housing part and the stationary closure part (21) and the sliding plate (24) can be accommodated therein. This ensures reliable operation and quick and simple assembly or disassembly of the sliding closure.

Description

Schieberverschluss zum Vergiessen von Metallschmelze, sowie eine dazugehörige feuerfeste Platteneinheit Slider closure for casting molten metal, as well as an associated fireproof plate unit
Beschreibungdescription
Die Erfindung betrifft einen Schieberverschluss zum Vergiessen von Metallschmelze/ mit wenigstens einem stationären Verschlussteil an einer Giessform oder dergleichen, sowie mit einer zu diesem beweglichen Schieberplatte, sowie eine dazugehörige feuerfeste Platteneinheit.The invention relates to a slide closure for casting molten metal / with at least one stationary closure part on a casting mold or the like, as well as with a slide plate movable to this, and an associated refractory plate unit.
Bei einem bekannten Schieberverschluss für eine Druck- giessseinrichtung nach der Druckschrift CH-A-415 972 ist das Steigrohr eines Giessofens am oberen Ende mit einer den Schmelzofen abdichtenden Abdeckplatte versehen. Auf dieser Abdeckplatte ist ein Schieberverschluss mit einer feststehenden Platte, darüber einer Schieberplatte und einem oberhalb dieser vorhandenen Blockteil angeordnet, auf welchen die Giessform stellbar ist.In a known slide closure for a die casting device according to the publication CH-A-415 972, the riser pipe of a casting furnace is provided at the upper end with a cover plate sealing the melting furnace. On this cover plate there is a slide closure with a fixed plate, a slide plate above it and a block part above it, on which the mold can be placed.
Bei einem anderen Schieberverschluss gemäss der Druckschrift DE-A-12 93 962 ist derselbe auf der Unterseite der Giessform montiert. Der Schieberverschluss ist hierbei mit einem unteren Abschlussteil, der Schieberplatte und einer oberhalb dieser befindlichen stationären Platte zusammengesetzt . H- s •d H Φ r+ s rt w α W D. tn Ω N σ to £ < Φ s: W to tr tn iQ tIn another slide closure according to the document DE-A-12 93 962, it is mounted on the underside of the casting mold. The slide closure is in this case assembled with a lower end part, the slide plate and a stationary plate located above this. H- s • d H Φ r + s rt w α W D. tn Ω N σ to £ <Φ s: W to tr tn iQ t
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Bei einer sehr vorteilhaften Ausführung ist ein an der Giessform oder dergleichen befestigbarer Gehäuserahmen vorgesehen, in dem ein lösbares Gehäuseteil fixiert ist, an welchem die Federorgane gehalten und der stationäre Verschlussteil sowie die Schieberplatte aufnehmbar sind. Mit dieser Wegnehmbarkeit des Gehäuseteils vom Gehäuserahmen kann eine sehr einfache und schnelle Demontage bzw. Montage des Verschlusses an der Giessform erzielt werden.In a very advantageous embodiment, a housing frame which can be fastened to the casting mold or the like is provided, in which a detachable housing part is fixed, on which the spring members are held and the stationary closure part and the slide plate can be received. With this removability of the housing part from the housing frame, a very simple and quick disassembly or assembly of the closure on the casting mold can be achieved.
Für eine maximal mögliche Standzeit weisen die feuerfeste Schieberplatte und das wenigstens eine Verschlussteil als Hauptbestandteil Graphit, Al-Titanat oder Zirkon auf.For a maximum possible service life, the refractory slide plate and the at least one closure part have graphite, Al-titanate or zircon as the main constituent.
Ausführungsbeispiele sowie weitere Vorteile der Erfindung sind anhand der Zeichnung näher erläutert. Es zeigt:Exemplary embodiments and further advantages of the invention are explained in more detail with reference to the drawing. It shows:
Fig.1 einen Querschnitt eines Schieberverschlusses einer teilweise dargestellten Druckgiesseinrich- tung nach der Erfindung;1 shows a cross section of a slide closure of a partially shown die casting device according to the invention;
Fig.2 eine Draufsicht des Schieberverschlusses ge äss Fig.1 ;2 shows a top view of the slide closure according to FIG. 1;
Fig.3 einen Längsschnitt des Schieberverschlusses gemäss Fig.1 ;3 shows a longitudinal section of the slide closure according to Figure 1;
Fig.4 einen teilweisen Querschnitt eines Schieberverschlusses, und4 shows a partial cross section of a slide closure, and
Fig.5 einen Längsschnitt einer weiteren Variante eines Schieberverschlusses . Fig.1 bis Fig.3 zeigen einen Schieberverschluss 20, der zum Öffnen und Schliessen einer Durchgangsöffnung 13, 14 dient. Der Schieberverschluss 20 weist ein oberes und ein unteres stationäres Verschlussteil 21, 22 sowie eine zwischen diesen bewegliche Schieberplatte 24 auf, wobei diese mit der Schmelze in Berührung gelangenden Teile aus einem feuerfesten Material hergestellt sind.5 shows a longitudinal section of a further variant of a slide closure. 1 to 3 show a slide closure 20 which serves to open and close a through opening 13, 14. The slide closure 20 has an upper and a lower stationary closure part 21, 22 as well as a slide plate 24 movable between them, these parts which come into contact with the melt being made of a refractory material.
Andeutungsweise ist von einer Druckgiesseinrichtung, welche vorzugsweise zum steigenden Giessen einer Leichtmetall-Legierung dient, das obere Ende Steigrohres 11, 12 von einem Giessofen ersichtlich, durch welches die Schmelze nach oben in eine ansatzweise gezeigte Giessform 15 gebracht wird, hierzu je eine Durchgangsöffnung 13, 14 vorgesehen ist, wobei zwischen dem Steigrohr 11, 12 und der Giessform 15 der Schieberverschluss 20 mit dem Verschlussteil 21 und der Schieberplatte 24 angeordnet ist.A hint of a die casting device, which is preferably used for the rising casting of a light metal alloy, shows the upper end of the riser pipe 11, 12 from a casting furnace, through which the melt is brought upwards into a casting mold 15 shown in the beginning, for this purpose a through opening 13, 14 is provided, the slide closure 20 with the closure part 21 and the slide plate 24 being arranged between the riser pipe 11, 12 and the casting mold 15.
Erfindungsgemäss ist die Schieberplatte 24 mittels Federorganen 25 an das obere stationäre Verschlussteil 21 oder durch andere Mittel an das untere Verschlussteil 22 anpressbar. Das obere Verschlussteil 21 und die unterhalb diesem gleitende Schieberplatte 24 sind von den Federorganen 25 aneinander gepresst und der Giessform 15 zugeordnet, das derweil das untere Verschlussteil 22 dem Steigrohr 11, 12 zugeordnet ist. Die Schieberplatte 24 ist beim Aufsetzen der Giessform 15 auf den Giessofen dicht auf die obere Gleitfläche 22' des Verschlussteils 22 angepresst, wobei die Mittel für dieses Anpressen durch das Eigengewicht der Giessform 15 und/oder durch ein zusätzliches nicht näher gezeigtes Verspannmittel vorgesehen sein können. Dieses Verspannmittel kann beispielsweise ein Andock- mechanismus sein, mittels dem die Giessform auf dem Ofen positioniert und festgespannt wird. Das untere Verschlussteil 22 weist einen zu der Oberseite 16' des Steigrohres überstehenden Kragen 22'' auf, der eine solche Höhe und Breite aufweist, dass die Federorgane 25 mit Kipphebeln 26 die Schieberplatte 24 beidseitig untergreifen können. Im Prinzip könnte auch die Schieberplatte 24 auf ihrer Unterseite einen entsprechenden Kragen aufweisen.According to the invention, the slide plate 24 can be pressed onto the upper stationary closure part 21 by means of spring members 25 or against the lower closure part 22 by other means. The upper closure part 21 and the slide plate 24 sliding below it are pressed against one another by the spring elements 25 and assigned to the casting mold 15, which meanwhile the lower closure part 22 is assigned to the riser pipe 11, 12. When the casting mold 15 is placed on the casting furnace, the slide plate 24 is pressed tightly onto the upper sliding surface 22 'of the closure part 22, the means for this pressing being able to be provided by the weight of the casting mold 15 and / or by an additional tensioning means, not shown in more detail. This clamping means can be, for example, a docking mechanism by means of which the casting mold is positioned and clamped on the furnace. The lower closure part 22 has a collar 22 ″ protruding from the top 16 ′ of the riser pipe, which has a height and width such that the spring members 25 can engage under the slide plate 24 on both sides with rocker arms 26. In principle, the slide plate 24 could also have a corresponding collar on its underside.
Bei einer im Rahmen der Erfindung sehr vorteilhaften Ausführung ist ein an der Giessform 15 oder dergleichen befestigbarer Gehäuserahmen 32 vorgesehen, in dem ein lösbares Gehäuseteil 35 fixiert ist, an welchem die Federorgane 25 gehalten und das stationäre Verschlussteil 21 sowie die Schieberplatte 24 aufnehmbar sind.In a very advantageous embodiment within the scope of the invention, a housing frame 32 that can be fastened to the casting mold 15 or the like is provided, in which a detachable housing part 35 is fixed, on which the spring members 25 are held and the stationary closure part 21 and the slide plate 24 can be received.
Der Gehäuserahmen 32 und das in ihm lösbare Gehäuseteil 35 weisen beidseitig miteinander korrespondierende Führungsflächen 33, 34 auf, wobei die eine Führungsfläche des Gehäuserahmens 32 derart annähernd in ihrer Längsausdehnung verschiebbar gehalten ist, dass das Gehäuseteil 35 in ihm verspannt bzw. von demselben gelöst werden kann.The housing frame 32 and the detachable housing part 35 have mutually corresponding guide surfaces 33, 34, the one guide surface of the housing frame 32 being held approximately displaceably in its longitudinal extent in such a way that the housing part 35 can be clamped in it or released from it ,
Zu diesem Zwecke ist die Führungsfläche 33 des Gehäuserahmens 32 von einem an einer Führungsstange 36 vorstehenden Keil 33' gebildet. Diese Führungsstange 36 ist in dem Gehäuserahmen 32 längsverschiebbar gehalten und kann von ausserhalb des Rahmens 32 in eine das Gehäuseteil 35 verspannende Position 36.2, wie dargestellt, bzw. in eine gelöste Position 36.1 geschoben werden, bei welcher das Gehäuseteil 35 aus dem Rahmen 32 insbesondere für einen Wechsel der Platten 21, 24 herausgenommen werden kann, indessen der Rahmen 32 an der Giessform oder dergleichen verbleibt. Die Führungsflächen 33 des Keils 33' und des Gehäuseteils 35 sind zu der Verschieberichtung des Keils 33' in einem Winkel von einigen Graden angeordnet, so dass in der Position 36.2 eine nicht lösende Keilverspannung entsteht.For this purpose, the guide surface 33 of the housing frame 32 is formed by a wedge 33 ′ projecting on a guide rod 36. This guide rod 36 is held longitudinally displaceably in the housing frame 32 and can be pushed from outside the frame 32 into a position 36.2 bracing the housing part 35, as shown, or into a released position 36.1, in which the housing part 35 out of the frame 32 in particular for a change of the plates 21, 24 can be removed, however, the frame 32 on the mold or the like remains. The guide surfaces 33 of the wedge 33 'and of the housing part 35 are arranged at an angle of a few degrees with respect to the direction of displacement of the wedge 33', so that a non-releasing wedge tension occurs in position 36.2.
Auf der gegenüberliegenden Seite sind die Führungsflächen 34 parallel zu der Verschieberichtung der Führungsstange 36 und im Querschnitt betrachtet, mit einer Schräge versehen, damit das Gehäusteil 35 in den Rahmen 32 quasi einhängt werden kann und er anschliessend durch Verschieben des Keils 33' darin fixiert ist.On the opposite side, the guide surfaces 34, viewed parallel to the direction of displacement of the guide rod 36 and in cross-section, are provided with a bevel so that the housing part 35 can be quasi hooked into the frame 32 and it is then fixed therein by moving the wedge 33 '.
Das Steigrohr weist ein feuerfestes Giessrohr 11 und ein dieses haltendes Metallrohr 12 mit einem oberen Flansch 12' auf, der auf einem Balg 17 befestigt ist. Dieser vorteilhaft aus einem Metallblech hergestellte Balg 17 ist mit einer solchen Steifigkeit versehen, dass mit dem unteren Verschlussteil 22 eine beschränkte schwimmende Lagerung gebildet ist, damit ein ganzflächiges Anliegen beim Andrücken der Schieberplatte 24 gegen dieses Verschlußteil 22 und damit eine optimale Abdichtung zwischen den beiden gewährleistet ist. Auf der Unterseite liegt das Verschlussteil 22 ausserdem dichtend an einem im Metallrohr 12 gehaltenen feuerfesten Giessrohr 11 an, welches mit seinem unteren Ende in die Schmelze ragt.The riser pipe has a fireproof pouring pipe 11 and a metal pipe 12 holding it with an upper flange 12 ′ which is fastened on a bellows 17. This bellows 17, which is advantageously produced from a metal sheet, is provided with such rigidity that a limited floating bearing is formed with the lower closure part 22, so that a full-surface contact when the slide plate 24 is pressed against this closure part 22 and thus ensures an optimal seal between the two is. On the underside, the closure part 22 also lies sealingly against a refractory pouring tube 11 held in the metal tube 12, which projects into the melt with its lower end.
Die Federorgane 25 weisen - wie dies auch in Fig.2 ersichtlich ist - beidseitig zu der Platte 24 je einen Kipphebel 26 auf, der jeweils an Laschen 28 gelenkig gelagert und von Federelementen 29 auf der der Platte 24 abgekehrten Seite beaufschlagt ist, derart, dass die vorderen α tn ö H- S •xl D) M « N Di < N r N tn Ώ ^ IQ 3 ö 3 3 01 H, D- W J φ rt φ 01 Φ μ- tr li μ- d Φ Φ d φ d φ φ 0: Φ Φ J μ- DJ! O φ Φ DJ DJ 3 tn H. DJ I-! c+ iQ iQ N. •dThe spring members 25 have - as can also be seen in FIG. 2 - a rocker arm 26 on each side of the plate 24, each of which is articulated on tabs 28 and acted upon by spring elements 29 on the side facing away from the plate 24, such that the front α tn ö H- S • xl D ) M «N Di <N r N tn Ώ ^ IQ 3 ö 3 3 01 H, D- WJ φ rt φ 01 Φ μ- tr li μ- d Φ Φ d φ d φ φ 0: Φ Φ J μ- DJ! O φ Φ DJ DJ 3 tn H. DJ I-! c + iQ iQ N. • d
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Bei der Schieberplatte 24, 54 wird als Hauptbestandteil Graphit und bei dem wenigstens einen angrenzenden stationären Verschlussteil 21, 22, 42, 53 wird als Hauptbestandteil Graphit, Al-Titanat oder Zirkon verwendet. Selbstverständlich kann dies auch im umgekehrten Sinne vorgesehen sein, d.h. für das Verschlussteil wird Graphit und für die Schieberplatte Graphit, Al-Titanat oder Zirkon verwendet.In the slide plate 24, 54, graphite is used as the main component and in the at least one adjacent stationary closure part 21, 22, 42, 53, graphite, Al-titanate or zircon is used as the main component. Of course, this can also be provided in the reverse sense, i.e. graphite is used for the closure part and graphite, aluminum titanate or zircon is used for the slide plate.
Die Erfindung ist mit den oben erläuterten Ausführungsbei- spielen ausreichend dargetan. Die Konstruktion des Giess- ofens mit dem Steigrohr kann selbstverständlich anders als dargestellt aussehen. Im Prinzip könnte das Steigrohr selbst eine obere plane Stirnfläche und damit das Verschlussteil bilden, auf welchem die Schieberplatte gleitend angeordnet wäre. The invention has been sufficiently demonstrated with the exemplary embodiments explained above. The construction of the casting furnace with the riser pipe can of course look different than shown. In principle, the riser pipe itself could form an upper flat end face and thus the closure part on which the slide plate would be slidably arranged.

Claims

Patentansprüche claims
1 . Schieberverschluss zum Vergiessen von Metallschmelze, mit wenigstens einem stationären Verschlussteil (21 , 42, 53 ) an einer Giessform oder dergleichen, sowie mit einer zu diesem beweglichen Schieberplatte ( 24 , 54) ,1 . Slider closure for casting molten metal, with at least one stationary closure part (21, 42, 53) on a casting mold or the like, and with a slide plate (24, 54) movable relative to it,
dadurch gekennzeichnet,characterized,
dass die Schieberplatte ( 24 , 54) und das wenigstens eine stationäre Verschlussteil mittels Federorganen ( 25 , 45 , 55 ) oder durch andere Mittel gegeneinander verspannt sind.that the slide plate (24, 54) and the at least one stationary closure part are braced against one another by means of spring elements (25, 45, 55) or by other means.
2 . Schieberverschluss nach Anspruch 1 ,2nd Slider closure according to claim 1,
dadurch gekennzeichnet,characterized,
dass ein an der Giessform (15) oder dergleichen befestigbarer Gehäuserahmen (32) vorgesehen ist, in dem ein lösbares Gehäuseteil (35) fixiert ist, an welchem die Federorgane (25) gehalten und in dem das stationäre Verschlussteil (21) sowie die Schieberplatte (24) aufnehmbar sind. that a housing frame (32) which can be fastened to the casting mold (15) or the like is provided, in which a detachable housing part (35) is fixed, on which the spring members (25) are held and in which the stationary closure part (21) and the slide plate ( 24) are recordable.
3. Schieberverschluss nach Anspruch 2,3. slide closure according to claim 2,
dadurch gekennzeichnet,characterized,
dass der Gehäuserahmen (32) und das in ihm lösbare gehaltene Gehäuseteil (35) beidseitig miteinander korrespondierende Führungsflächen (33, 34) aufweisen, wobei die eine Führungsfläche des Gehäuserahmens (32) derart annähernd in ihrer Längsausdehnung verschiebbar gehalten ist, dass das Gehäuseteil (35) in ihm verspannt bzw. von ihm gelöst werden kann.that the housing frame (32) and the housing part (35) which can be detached therein have guide surfaces (33, 34) corresponding to one another on both sides, the length of the one guide surface of the housing frame (32) being approximately displaceable in such a way that the housing part (35 ) can be tensioned in it or released from it.
4. Schieberverschluss nach Anspruch 3,4. slide closure according to claim 3,
dadurch gekennzeichnet,characterized,
dass die Führungsfläche des Gehäuserahmens (32) an einem an einer Führungsstange (36) vorstehenden Keil (33') gebildet ist, wobei die Führungsstange (36) mit dem Keil (33') in dem Gehäuserahmen (32) in eine das Gehäuseteil (35) verspannende Position (36.2) bzw. in eine das Gehäuseteil (35) lösende Position (36.1), längsverschiebbar ist.that the guide surface of the housing frame (32) is formed on a wedge (33 ') projecting from a guide rod (36), the guide rod (36) with the wedge (33') in the housing frame (32) into a housing part (35 ) tensioning position (36.2) or in a position (36.1) releasing the housing part (35), is longitudinally displaceable.
5. Schiebervers.chluss nach einem der vorhergehenden Ansprüche,5. Slider closure according to one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass das untere Verschlussteil (22) einen zu der Oberseite (16) eines Giessofens oder dergleichen überstehenden Kragen (22'') aufweist, der eine solche Höhe und Breite aufweist, dass die Federorgane (25) mit ihren Kipphebeln (26) die Schieberplatte (24) beidseitig untergreifen können.that the lower closure part (22) has a collar (22 '') which projects to the top (16) of a casting furnace or the like and which has such a height and has a width such that the spring members (25) can engage under the slide plate (24) on both sides with their rocker arms (26).
6. Schieberverschluss nach einem der vorhergehenden Ansprüche,6. slide closure according to one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass der Gehäuserahmen (32) mit seiner Unterseite (32') auf der zum Antriebsorgan der Schieberplatte (24) abgekehrten Seite vorzugsweise oberhalb der unteren Gleitfläche (24') der Schieberplatte (24) angeordnet ist.that the housing frame (32) with its underside (32 ') on the side facing away from the drive element of the slide plate (24) is preferably arranged above the lower sliding surface (24') of the slide plate (24).
7. Schieberverschluss nach einem der vorhergehenden Ansprüche,7. slide closure according to one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass das obere und das untere Verschlussteil (21, 42) als auch die Schieberplatte (24) von den Federorganen (45) in dem an der Giessform (15) befestigten Gehäuserahmen (32) gegeneinander verspannt sind.that the upper and the lower closure part (21, 42) as well as the slide plate (24) are braced against each other by the spring elements (45) in the housing frame (32) attached to the casting mold (15).
8. Schieberverschluss nach Anspruch 1,8. slide closure according to claim 1,
dadurch gekennzeichnet,characterized,
dass ein auf dem Giessofen (61) oder dergleichen befestigter Gehäuserahmen (52) vorgesehen ist, in dem ein unteres stationäres feuerfestes Verschlussteil (63) fixiert ist, indessen die oberhalb des Verschlussteiles (63) gleitend angeordnete Schieberplatte (54) in einem Schieberrahmen (56) gehalten ist, der seinerseits von einem Schieber (57) mitgenommen ist, wobei die Schieberplatte (54) von Federorganenthat a housing frame (52) fastened on the casting furnace (61) or the like is provided, in which a lower stationary fireproof closure part (63) is fixed, meanwhile the slide plate (54) slidably arranged above the closure part (63) is held in a slide frame (56), which in turn is carried by a slide (57), the slide plate (54) being spring-loaded
(55), die im Schieber (57) integriert sind, gegen das Verschlussteil (63) verspannt ist.(55), which are integrated in the slide (57), is clamped against the closure part (63).
9. Schieberverschluss nach einem der vorhergehenden Ansprüche,9. slide closure according to one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass eine Zufuhrleitung (67) und eine mit dieser verbundene, in eine die Mündungsöffnung der Giessform (65) oder dergleichen umgebenden Ringnut (67') für ein Kühlmittel oberhalb der Schieberplatte (54) angeordnet ist .that a supply line (67) and an annular groove (67 ') for a coolant, which is connected to the opening in the casting mold (65) or the like, is arranged above the slide plate (54).
10. Feuerfeste Platteneinheit für eine Druckgiesseinrich- tung nach einem der vorhergehenden Ansprüche, die aus wenigstens einem stationären Verschlussteil (21, 22, 42, 53) und einer Schieberplatte (24, 54) besteht,10. Refractory plate unit for a die casting device according to one of the preceding claims, which consists of at least one stationary closure part (21, 22, 42, 53) and a slide plate (24, 54),
dadurch gekennzeichnet,characterized,
dass die Schieberplatte (24, 54) und das wenigstens eine angrenzende Verschlussteil (21, 22, 42, 53) als Hauptbestandteil Graphit, Al-Titanat oder Zirkon aufweisen. that the slide plate (24, 54) and the at least one adjacent closure part (21, 22, 42, 53) have graphite, aluminum titanate or zirconium as the main component.
11. Feuerfeste Platteneinheit nach Anspruch 10,11. Refractory plate unit according to claim 10,
dadurch gekennzeichnet,characterized,
dass die Schieberplatte (54) bzw. das zu ihr angrenzende Verschlussteil (53), welche die Schliessflache bilden, jeweils mit solchen Durchgangsöffnungen (53', 54') versehen sind, dass sie ausgehend von der Schliessflache im Durchmesser nach oben bzw. nach unten erweitert sind.that the slide plate (54) or the closing part (53) adjacent to it, which form the closing surface, are each provided with such through openings (53 ', 54') that they start from the closing surface in diameter upwards or downwards are expanded.
12. Feuerfeste Platteneinheit nach Anspruch 10 oder 11,12. Refractory plate unit according to claim 10 or 11,
dadurch gekennzeichnet,characterized,
dass die Schieberplatte (24, 54) als Hauptbestandteil Graphit und das wenigstens eine angrenzende Verschlussteil (21, 22, 42, 53) als Hauptbestandteil Graphit, Al-Titanat oder Zirkon oder vice versa aufweisen. that the slide plate (24, 54) has graphite as the main component and the at least one adjoining closure part (21, 22, 42, 53) has graphite, Al-titanate or zirconium or vice versa as the main component.
EP01957934A 2000-07-12 2001-07-07 Sliding closure for casting molten metal Expired - Lifetime EP1299201B1 (en)

Priority Applications (1)

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Applications Claiming Priority (3)

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DE10033904A DE10033904A1 (en) 2000-07-12 2000-07-12 Slider closure for casting molten metal, as well as an associated fireproof plate unit
DE10033904 2000-07-12
PCT/EP2001/007822 WO2002004148A1 (en) 2000-07-12 2001-07-07 Sliding closure for casting molten metal and corresponding refractory plate unit

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EP1299201A1 true EP1299201A1 (en) 2003-04-09
EP1299201B1 EP1299201B1 (en) 2005-02-16

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EP (1) EP1299201B1 (en)
AT (1) ATE289239T1 (en)
AU (2) AU2001279722B2 (en)
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CA (1) CA2414943A1 (en)
DE (2) DE10033904A1 (en)
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SK232003A3 (en) 2003-09-11
EP1299201B1 (en) 2005-02-16
US6978980B2 (en) 2005-12-27
WO2002004148A1 (en) 2002-01-17
DE10033904A1 (en) 2002-01-31
DE50105377D1 (en) 2005-03-24
BR0112412A (en) 2003-05-27
DK1299201T3 (en) 2005-06-13
ATE289239T1 (en) 2005-03-15
HU226153B1 (en) 2008-05-28
AU7972201A (en) 2002-01-21
PL359486A1 (en) 2004-08-23
CA2414943A1 (en) 2002-12-30
PL198757B1 (en) 2008-07-31
HUP0301547A2 (en) 2003-08-28
MXPA03000287A (en) 2004-12-13
ES2238465T3 (en) 2005-09-01
SK286971B6 (en) 2009-08-06
US20040026467A1 (en) 2004-02-12
AU2001279722B2 (en) 2005-04-21

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