EP1299202B1 - Procede et dispositif de coulee ascendante a l'aide d'une coquille ou d'un ensemble noyau avec orifice de coulee ouvert - Google Patents

Procede et dispositif de coulee ascendante a l'aide d'une coquille ou d'un ensemble noyau avec orifice de coulee ouvert Download PDF

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Publication number
EP1299202B1
EP1299202B1 EP01957943A EP01957943A EP1299202B1 EP 1299202 B1 EP1299202 B1 EP 1299202B1 EP 01957943 A EP01957943 A EP 01957943A EP 01957943 A EP01957943 A EP 01957943A EP 1299202 B1 EP1299202 B1 EP 1299202B1
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EP
European Patent Office
Prior art keywords
casting
opening
mould
pouring
base plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01957943A
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German (de)
English (en)
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EP1299202A1 (fr
Inventor
Wolfgang Müller
Alexander Fischer
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.)
Hydro Aluminium Deutschland GmbH
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Hydro Aluminium Deutschland 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 Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Publication of EP1299202A1 publication Critical patent/EP1299202A1/fr
Application granted granted Critical
Publication of EP1299202B1 publication Critical patent/EP1299202B1/fr
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
    • 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

Definitions

  • the invention relates to a method and an apparatus for increasing casting, especially for casting light metal alloys. Compared to gravity casting, this has been increasing Pour the essential benefit of a calmed controlled G confuseverlaufs. Thereby the air bubble entry and the oxide skin entry, with every swirl of the melt when pouring is avoided. When using core packages as Casting molds can detach and entrain molded material be avoided in the gate and in the pouring run, otherwise to Reduces the quality of the castings.
  • the invention is based on a method and a task Device of the type mentioned to increase reliability to improve.
  • the solution to this is after an initial one Approach in a rising / low pressure casting process - especially of light metal alloys - as defined in claim 1.
  • a device suitable for carrying out these methods comprises a casting table with a passage opening, one below the casting table lying with a riser pipe, the one forms open mouth opening, a mold with a Base plate which has a downwardly open gate; the mouth opening seals against the passage opening from below scheduled, the casting mold with its pouring opening attached to the passage opening from above, means for horizontal displacement of the mold on the casting table and Means for maintaining a positive form at the same time the base of the mold opposite the casting table.
  • the top of the casting table that with an inserted ceramic plate or rail can be reinforced, and the bottom of the base of the mold, which are flat on top of each other lie.
  • the then dropped back into the riser by lowering the pressure is before the emptied gate opposite the passage opening of the casting table or the mouth of the riser on the Casting table is moved so that the next mold is adjusted can be.
  • the surfaces mentioned can be pressed together with contact pressure become. This is made possible by elastic on the casting table attached horizontal rails or roller sets that are used for pressing the mold on the casting table when moving to fixed horizontal edges or rails of the mold act, or by means of horizontal rails arranged elastically on the casting mold or roller sets that are used to press the mold onto the casting table with horizontal edges fixed on the casting table or Interact rails. Suitable material pairings for this Surfaces are to be selected depending on the type of casting metal.
  • the supply of the molds in the casting position can be different Succeed, either using the mold each is placed on the casting table from above so that the passage opening or the mouth opening with the sprue opening is openly connected, or alternatively the casting mold in each case is fed horizontally over the casting table so that the passage opening or the mouth opening with the sprue opening is openly connected.
  • the mold After pouring and moving the mold can be in one Position stopped in the casting table under the gate the mold is cooled. In addition to this the mold with the sprue when moving over a cooled section of the casting table. Through this Both measures will cause the melt to solidify rapidly Casting causes, after which the mold is not in the rest completed solidification from the casting table or the corresponding Funding can be withdrawn.
  • the first relates to methods and devices in which the melt level in the sealed casting furnace a controllable gas pressure is given which causes the melt to rise or fall back in the riser.
  • a controllable gas pressure is given which causes the melt to rise or fall back in the riser.
  • controllably promote the melt in the riser can, e.g. Magnetic pump arrangements at the lower end of the riser pipe in the casting furnace.
  • a horizontal casting table 11 has a passage opening 12 with an outer Lining 13 and an inner lining 14 are sheathed is.
  • a casting furnace 21 which has a riser pipe 22 which is sealingly inserted into the casting furnace and below into the melt 23 contained therein dips and has an opening 24 at the top.
  • a Arrow 25 indicates that compressed air is applied to the casting furnace 21 can be, so that a melt column 26 in the riser rises.
  • This base plate 30 has sprue openings 31, 32 on, optionally by moving the base plate 30 can be made to coincide with the passage opening 12.
  • the gate openings 31, 32 are each with linings 33, 34 provided.
  • the molds built on the base plate 30 1, 2 each have brackets 35, 36, 37, 38 with actuating cylinders, 39, 40, 41, 42 on the mold halves 43, 44, 45, 46 act. Sits in the middle between the mold halves Central mandrel 47, 48, whose suspension is not shown in detail is.
  • the cast part to be produced can be made in particular of a cylinder liner Be light metal for internal combustion engines. Changes in volume and shape of the casting when solidifying are in all representations neglected.
  • the riser pipe 22 closes sealing against the bottom in the area of the passage opening 12 Casting table 11 on. This can be done with elastically suspended in the casting furnace 21 Riser 22 of the casting furnace 21 from below against the casting table 11 can be moved in height.
  • the respective gate 31 32 in the base plate 30 is sealingly on the upper Exit of the passage opening 12 on.
  • Lowering the casting furnace is particularly advantageous in order to replace an empty pouring furnace with a full pouring furnace.
  • a pre-pressure is built up in the casting furnace Melting column 26 to slightly above the mouth opening 24 lets rise.
  • the mold 1 is the casting furnace 21 by moving the base plate 30 to the right in a first casting position assigned.
  • the mold 1 is closed, as by arrows indicated and ready to pour.
  • the mold 2 is open, as indicated by arrows and demolded.
  • the base plate 30 is to the left in a second Casting position shifted, with the melt column in the mold 1 between the casting table 11 and base plate 30 has been sheared off and in the mold 1 a finished casting has been created.
  • the Mold 2 is the casting furnace 21 by moving the base plate 30 assigned to the left in a second casting position and is in closed position ready for casting.
  • the melt column 26 is at the mold 1 immediately after shearing in the riser 22 again up to slightly above the mouth opening 24 dropped behind.
  • the casting mold 1 is open as indicated by arrows, the finished casting still on the central mandrel 47 is held.
  • mold 2 is by increasing the pressure in the casting furnace the melt column has risen so that the mold is complete is filled. The actual casting process has already been completed here.
  • the base plate 30 is right again in the first casting position shifted so that the mold 1 again Casting furnace 21 is assigned.
  • the melting column in mold 2 is have been sheared, so that a finished in the mold Cast part is recognizable.
  • the mold 2 is still closed to wait for the solidification process.
  • the mold 1 is prepared to the next casting process, the melt column 26 slightly ends above the mouth opening 24 in the riser pipe 22.
  • the mold 2 as indicated by arrows, opened, with a finished casting still on the central pin 48 sits on.
  • the melt column 26 increased and thus the filled so that the actual casting process already ends here is.
  • FIG. 9 shows a casting table 51 with a passage opening 52 as well as with cooling positions 53, 54 indicated by arrows.
  • a casting furnace 61 Under the casting table is a casting furnace 61 with a Riser pipe 62, which is filled with melt.
  • the mouth opening 64 of the riser pipe 62 closes the passage opening from below 52 on.
  • the shape 71 lies with the sprue 74 the casting furnace 61 and is in the process of being poured.
  • the Form 72 is already opposite the passage opening 52 shifted to the left, whereby the melt column has been sheared off and is in a position where the gate 75, 76 in the mold 72, 73 over a cooling area 53 of the casting table lies.
  • the mold 73 is moved further, and is located in a position in which the gate 75, 76 in the mold 72, 73 lies over a cooling area 53, 54 of the casting table, wherein in Soot 76 has solidified. From here can the mold moved further or directly from the casting table be lifted off. The effect is shown by arrows 77, 78 of a form, which is indicated when filling the mold Leakage of melt prevented. By an arrow 79 is the Effect of a higher active pressure for feeding is displayed.
  • a device according to the invention is in supervision shown, wherein a casting table 91 formed only as narrow paths is.
  • the casting table here has two casting stations 92, 93 with openings 94, 95 and two solidification stations 96, 97.
  • Casting molds 101, 102 can each be viewed from above Pouring stations for casting are placed, after the Pouring can be moved and then the positions of here adopt molds 103, 104 designated during solidification.
  • Pouring furnaces ND1, ND2, ND3, ND4 can be close to one Brought furnace 111 and from there to a holding position in front of the casting stations 92, 93, in a casting position and in move to a stop position behind the casting stations 92, 93 so that each time empty pouring furnaces.
  • At the melting furnace 111 be filled and immediately after emptying a casting furnace filled pouring furnace from a waiting position to the pouring position can be refilled under the casting table.
  • At least one of the Casting stations 92, 93 of the casting table should always be ready for casting, so that no production interruption during the change a casting furnace.
  • the two casting stations can Usually also run in parallel to the production rate to increase.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Casting Devices For Molds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Confectionery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (18)

  1. Procédé pour la coulée ascendante / la coulée ascendante à basse pression - notamment d'alliages de métal léger -
    comportant une table de coulée possédant une ouverture de passage,
    un four de coulée, qui est située au-dessous de la table de coulée et comporte un tube ascendant, qui forme une ouverture d'embouchure ouverte vers le haut,
    un moule de coulée comportant une plaque de base, qui comporte une ouverture de coulée ouverte vers le bas,
    selon lequel
    on applique de façon étanche, à partir du dessous, l'ouverture d'embouchure contre l'ouverture de passage,
    on place le moule de coulée et son ouverture de coulée au-dessus de l'ouverture de passage,
    on entraíne la masse fondue au moyen du tube ascendant, depuis le four de coulée jusqu'au remplissage dans le moule de coulée,
    alors que la liaison remplie de masse fondue entre le four de coulée et le moule de coulée est ouverte, on déplace le moule de coulée horizontalement sur la table de coulée jusqu'à ce que l'ouverture de coulée au-dessous de la table de coulée soit fermée et que l'ouverture de passage au-dessus de la plaque de base soit fermée, et
    on laisse la masse fondue située dans le tube ascendant retomber jusqu'au-dessous de l'ouverture d'embouchure.
  2. Procédé pour la coulée ascendante / la coulée ascendante à basse pression - notamment d'alliages de métal léger -
    comportant une table de coulée possédant une ouverture de passage,
    un four de coulée, qui est situé au-dessous de la table de coulée et comporte un tube ascendant, qui forme une ouverture d'embouchure ouverte vers le haut,
    un moule de coulée comportant une plaque de base, qui comporte une ouverture de coulée ouverte vers le bas,
    selon lequel
    on applique de façon étanche, à partir du dessous, l'ouverture d'embouchure contre l'ouverture de passage,
    on repousse le moule de coulée avec son ouverture de coulée au-dessus de l'ouverture de passage,
    on entraíne la masse fondue, au moyen du tube ascendant, depuis le four de coulée jusqu'au remplissage dans le moule de coulée,
    on laisse le moule de coulée dans cette position jusqu'à ce que la pièce coulée soit solidifiée et qu'une masse fondue liquide soit encore située uniquement dans l'entrée de coulée,
    on laisse la masse fondue située dans le tube ascendant retomber jusqu'au-dessous de l'ouverture d'embouchure, et
    alors que la liaison remplie de masse fondue entre le four de coulée et le moule de coulée est ouverte, on déplace le moule de coulée horizontalement sur la table de coulée jusqu'à ce que l'ouverture de coulée au-dessous de la table de coulée soit fermée et que l'ouverture de passage au-dessus de la plaque de base soit fermée.
  3. Procédé selon l'une des revendications 1 ou 2, selon lequel on applique le moule de coulée respectivement à partir du haut sur la table de coulée, de telle sorte que l'ouverture de passage pour l'ouverture d'embouchure soit reliée à l'état ouvert avec l'ouverture de coulée.
  4. Procédé selon l'une des revendications 1 ou 2, selon lequel on amène le moule de coulée respectivement horizontalement au-dessus de la table de coulée de telle sorte que l'ouverture de passage ou l'ouverture d'embouchure soit reliée à l'état ouvert à l'ouverture de coulée.
  5. Procédé selon l'une des revendications 1 à 4,
    selon lequel pendant la coulée ascendante et le déplacement du moule de coulée, on maintient ce dernier avec une prépression contre la table de coulée ou contre le tube ascendant.
  6. Procédé selon l'une des revendications 1 à 5,
    selon lequel pendant la coulée ascendante et le déplacement du moule de coulée, on maintient le tube ascendant avec une prépression contre la table de coulée ou la plaque de base du moule de coulée.
  7. Procédé selon l'une des revendications 1 ou 3 à 6,
    selon lequel après le déplacement du moule de coulée, on retient ce dernier dans une position, dans laquelle on refroidit la table de coulée au-dessous de l'ouverture de coulée.
  8. Procédé selon l'une des revendications 1 ou 3 à 7,
    selon lequel lors du déplacement du moule de coulée, on guide ce dernier avec l'ouverture de coulée sur une section de la table de coulée qui est refroidie.
  9. Procédé selon l'une des revendications 1 à 8, selon lequel on installe deux moules de coulée sur une plaque de base comportant deux ouvertures de coulée, on y effectue la coulée et on réalise le démoulage, la plaque de base étant repoussée alternativement avec les ouvertures de coulée au-dessus de l'ouverture de passage ou sur l'ouverture d'embouchure.
  10. Procédé selon l'une des revendications 1 à 8, selon lequel on installe deux moules de coulée sur une plaque de base comportant deux ouvertures de coulée, on y effectue la coulée et on réalise le démoulage, la plaque de base étant entraínée en rotation à la manière d'un carrousel avec les ouvertures de coulée au-dessus de l'ouverture de passage ou sur l'ouverture d'embouchure.
  11. Dispositif pour la coulée ascendante / la coulée ascendante à basse pression - notamment pour la coulée d'alliages de métal léger, comportant
    une table de coulée comportant une ouverture de passage,
    un four de coulée situé au-dessous de la table de coulée et comportant un tube montant, qui forme une ouverture d'embouchure ouverte vers le haut,
    un moule de coulée comportant une plaque de base, qui possède une ouverture de coulée ouverte vers le bas,
    on applique de façon étanche l'ouverture d'embouchure à partir du bas contre l'ouverture de passage,
    on applique le moule de coulée à partir du haut, avec son ouverture de coulée, sur l'ouverture de passage,
    caractérisé par des moyens pour déplacer horizontalement le moule de coulée sur la table de coulée et des moyens pour maintenir simultanément une prépression positive à la plaque de base du moule de coulée par rapport à la table de coulée.
  12. Dispositif selon la revendication 11, caractérisé en ce que
    le moule de coulée comporte un fluide de refroidissement au-dessus d'une zone d'attaque de coulée non refroidie.
  13. Dispositif selon l'une des revendications 11 ou 12,
    caractérisé par des rails horizontaux ou des ensembles de rouleaux horizontaux, fixés élastiquement à la table de coulée et qui agissent de manière à serrer le moule de coulée contre la table de coulée lors du déplacement sur des bords ou des rails horizontaux fixes du moule de coulée.
  14. Dispositif selon l'une des revendications 11 ou 12,
    caractérisé par des rails ou des ensembles de rouleaux horizontaux disposés élastiquement sur le moule de coulée et qui coopèrent pour serrer le moule de coulée sur la table de coulée avec des bords ou des rails horizontaux montés fixes sur la table de coulée.
  15. Dispositif selon l'une des revendications 11 à 14,
    caractérisé par des moyens pour serrer le tube ascendant contre la table de coulée ou le moule de coulée.
  16. Dispositif selon la revendication 15,
    caractérisé par un tube montant suspendu élastiquement dans le moule de coulée et par des moyens de réglage en hauteur pour le four de coulée.
  17. Dispositif selon l'une des revendications 11 à 16,
    caractérisé par deux moules installés sur une plaque de base commune comportant deux ouvertures de coulée, notamment deux moules de coulée continue, ainsi que des moyens de déplacement pour déplacer alternativement la plaque de base.
  18. Dispositif selon l'une des revendications 11 à 16, caractérisé par une multiplicité de moules, notamment de moules de coulée continue, installées sur une plaque de base commune et comportant un anneau d'ouverture de coulée, ainsi que des moyens d'entraínement en rotation pour réaliser l'entraínement en rotation de la plaque de base.
EP01957943A 2000-07-11 2001-07-10 Procede et dispositif de coulee ascendante a l'aide d'une coquille ou d'un ensemble noyau avec orifice de coulee ouvert Expired - Lifetime EP1299202B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033625A DE10033625A1 (de) 2000-07-11 2000-07-11 Verfahren und Vorrichtung zum steigenden Gießen mit einer Kokille / einem Kernpaket mit offener Eingußöffnung
DE10033625 2000-07-11
PCT/EP2001/007915 WO2002004149A1 (fr) 2000-07-11 2001-07-10 Procede et dispositif de coulee ascendante a l'aide d'une coquille ou d'un ensemble noyau avec orifice de coulee ouvert

Publications (2)

Publication Number Publication Date
EP1299202A1 EP1299202A1 (fr) 2003-04-09
EP1299202B1 true EP1299202B1 (fr) 2004-03-03

Family

ID=7648520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01957943A Expired - Lifetime EP1299202B1 (fr) 2000-07-11 2001-07-10 Procede et dispositif de coulee ascendante a l'aide d'une coquille ou d'un ensemble noyau avec orifice de coulee ouvert

Country Status (13)

Country Link
US (1) US20030178169A1 (fr)
EP (1) EP1299202B1 (fr)
AT (1) ATE260727T1 (fr)
AU (2) AU7973001A (fr)
BR (1) BR0112408A (fr)
CA (1) CA2412935A1 (fr)
DE (2) DE10033625A1 (fr)
ES (1) ES2217174T3 (fr)
HU (1) HUP0301499A2 (fr)
MX (1) MXPA03000288A (fr)
PL (1) PL198944B1 (fr)
SK (1) SK286623B6 (fr)
WO (1) WO2002004149A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422121A1 (de) * 1984-06-14 1985-12-19 Institut po Metalosnanie i Technologia na Metalite, Sofia/Sofija Fertigungslinie fuer die herstellung von gussstuecken, insbesondere durch gegendruckgiessen
FR2663572B1 (fr) * 1990-06-22 1994-11-25 Pont A Mousson Procede d'alimentation en metal sous basse pression d'un moule en sable borgne, moule et installation de coulee correspondants.
DE4332760A1 (de) * 1993-09-25 1995-03-30 Klaus Doehrer Verfahren zum Betreiben einer Niederdruckmetallgießvorrichtung und Niederdruckmetallgießvorrichtung dafür
DE19613668C1 (de) * 1996-04-04 1997-05-28 Gustav Ohnsmann Gießanlage und Verfahren zur Herstellung von Gußstücken
DE29708575U1 (de) * 1997-05-14 1997-07-31 Heinrich Wagner Sinto Maschinenfabrik Gmbh, 57334 Bad Laasphe Vorrichtung zum steigenden Gießen in Gießformen
DE19720057A1 (de) * 1997-05-14 1998-11-19 Wagner Heinrich Sinto Masch Verfahren und Vorrichtung zum steigenden Gießen in Sand-Gießformen
IT1296351B1 (it) * 1997-11-18 1999-06-25 Imr Spa Impianto perfezionato di colata in conchiglia a bassa pressione
DE19807623A1 (de) * 1998-02-21 1999-08-26 Georg Fischer Disa Ag Niederdruck-Gießverfahren für Leichtmetalle, insbesondere Aluminium
DE19821419A1 (de) * 1998-05-13 1999-11-18 Georg Fischer Disa Ag Verfahren zum steigenden Niederdruck-Gießen von Metall, insbesondere Leichtmetall
DE19834553A1 (de) * 1998-07-31 2000-02-03 Georg Fischer Disa Ag Verfahren und Vorrichtung zum steigenden Gießen von Leichtmetall
DE19845389A1 (de) * 1998-10-02 2000-04-06 Georg Fischer Disa Ag Vorrichtung zum steigenden Niederdruck-Gießen von Metallschmelzen

Also Published As

Publication number Publication date
PL198944B1 (pl) 2008-08-29
DE10033625A1 (de) 2002-01-31
BR0112408A (pt) 2003-07-22
ATE260727T1 (de) 2004-03-15
SK222003A3 (en) 2003-09-11
EP1299202A1 (fr) 2003-04-09
CA2412935A1 (fr) 2002-12-23
SK286623B6 (sk) 2009-02-05
ES2217174T3 (es) 2004-11-01
PL359786A1 (en) 2004-09-06
WO2002004149A1 (fr) 2002-01-17
MXPA03000288A (es) 2005-09-23
AU2001279730B2 (en) 2004-10-28
DE50101632D1 (de) 2004-04-08
AU7973001A (en) 2002-01-21
US20030178169A1 (en) 2003-09-25
HUP0301499A2 (en) 2003-08-28

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