EP1299203B1 - Procede et dispositif de coulee en source comportant une fermeture a tiroir placee sur le plateau de coulee - Google Patents

Procede et dispositif de coulee en source comportant une fermeture a tiroir placee sur le plateau de coulee Download PDF

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Publication number
EP1299203B1
EP1299203B1 EP01969350A EP01969350A EP1299203B1 EP 1299203 B1 EP1299203 B1 EP 1299203B1 EP 01969350 A EP01969350 A EP 01969350A EP 01969350 A EP01969350 A EP 01969350A EP 1299203 B1 EP1299203 B1 EP 1299203B1
Authority
EP
European Patent Office
Prior art keywords
aperture
casting
channel
riser pipe
opening
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
EP01969350A
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German (de)
English (en)
Other versions
EP1299203A2 (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
Original Assignee
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
Priority to SI200130266T priority Critical patent/SI1299203T1/xx
Publication of EP1299203A2 publication Critical patent/EP1299203A2/fr
Application granted granted Critical
Publication of EP1299203B1 publication Critical patent/EP1299203B1/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
    • 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
    • B22D41/24—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 characterised by a rectilinearly movable plate
    • 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 a device for rising casting / low pressure casting - especially of light metal alloys - with a lying under a casting table Casting furnace with a riser and a mouth opening of the Riser and with a casting mold with bottom pouring hole and with a slide closure for the pouring opening, the forms a passageway which is for casting a substantially straight longitudinal course assumes.
  • the rising watering has the Significant advantage of a controlled controlled casting process.
  • the air bubble entry and the oxide skin entry associated with any swirling of the melt during casting, avoided.
  • this can be the detachment and entrainment of molding material in the Bleed and be avoided in the run, the otherwise to Reduction of quality of the GuB publishede leads.
  • a disadvantage of rising casting it is generally that the Solidification process of up to 15 min duration to be awaited must be removed before the currently filled mold and the next Casting mold can be brought over the casting furnace.
  • the Solidification process of up to 15 min duration to be awaited must be removed before the currently filled mold and the next Casting mold can be brought over the casting furnace.
  • US 3,627,018 is a process for the preparation of castings in a permanent mold known.
  • known methods an increasing casting process used, with a mold on a Melting container is placed so that a continuous connection between the melt container and consists of the mold cavity. After a complete Filling the mold with molten metal, the Casting mold via a positioning cylinder in horizontal Direction be shifted, so that no continuous Connection more between the melt container and the Casting exists.
  • a horizontal slidable barrier provided with an opening be provided and the connection between the Melting container and the mold by horizontal Move this barrier after the end of the Casting be interrupted.
  • a disadvantage of the US 3,627,018 known prior art is that before removing the mold from the respective one must be awaited closure mechanism provided until the melt at least at the bottom of the Fill opening of the mold is solidified. This results a slow process sequence.
  • the following invention is based on the object Method and apparatus of the type mentioned further to improve.
  • the Process sequence in the rising Casting / low pressure casting will be accelerated.
  • the solution lies in a method of increasing Casting / low pressure casting, where to shut off in Slider closure two directly to each other subsequent opening sections of the passageway Immediately after pouring while the melt is still liquid in the sprue transverse to the longitudinal course of Passage channel are shifted against each other, that an overhead opening portion with the pouring opening undercut remains open connected and one bottom opening section with the mouth opening the riser remains open, the Opening sections completely offset from each other lie.
  • the melt is within the upper opening portion of the passageway at the latest from the shifting of the opening sections of Passage channel actively cooled against each other.
  • a corresponding device is characterized characterized in that the slide closure on the Casting table is put on and two against each other slidable plates, each having a Having passage opening, wherein the plates for Pour with their openings in coverage are bringable and the plates to shut off like that are mutually displaceable, that the Passage opening in the upper plate with the Gutter is connected undercut open and open the passage opening in the lower plate with the Orifice of the riser is openly connected, while the sections of the passage opening completely offset from each other. It is according to the invention a neck approach of the holder of a coolant ring surrounded in the holder, with a coolant line connected is.
  • the melt within the sprue and optionally also within the upper longitudinal section of the passageway at the latest after shutting off i. So moving the longitudinal sections of the Passage channel to actively cool against each other. in this connection then can a mold already immediately after the Solidification of the melt in the upper longitudinal section of Passage channel and in the sprue of the mold be removed from the slide closure. A freezing of the entire casting must therefore not be awaited.
  • An air access to the melt level in the riser can be largely excluded if after shut off the melt in the riser only so far lowered is until at least the lower longitudinal portion of Passage channel is emptied of melt to a Sticking melt on the upper slide plate too avoid.
  • it may be provided in particular that after shutting off the melt in the riser only until slightly below the mouth of the riser is lowered and that the riser when lowering the Melt at the mouth opening with inert gas is charged.
  • the Process management characterized in that the casting mold itself as a whole together with the upper longitudinal section of the Passage channel of the slider member is moved.
  • the device according to the invention is designed so that the plates in a mounted on the casting table Cassette are held and the top plate in an in the cassette is held on the sliding holder the mold is placed. Especially this one Holder in a guided in the cassette slide be used on which it is resiliently supported.
  • a suitable casting mold has a lower cylindrical Spigot that forms the pouring hole and in one Nozzle insert or a nozzle holder in the holder suitable for the upper plate, which fits on the Passage opening is aligned in the upper plate.
  • the end face of the cylindrical nozzle of the mold dull on the upper Plate be placed and, provided the weight of the Mold is too low to ensure effective sealing produce, be braced against this.
  • To the Sequence of the casting operations as mentioned above accelerate are as coolers on Coolant ring on the nozzle insert or nozzle adapter in the holder of the upper plate and a cooling chamber provided below or in the lower plate.
  • the Coolant supply to the coolant ring must be elastic be to balance the movements of the carriage or the holder to be able to.
  • the actuator for the carriage can be arranged directly on the cassette.
  • the mold can be designed as a permanent mold or even out altogether Molded material exist.
  • the connection between riser and slider organ may be such that the riser the casting table in a Opening interspersed and immediately with a contact plate to the fixed lower slide plate applies.
  • a sprue bushing firmly used is, which lines the opening in the casting table and the sealing is stretched against the lower slide plate and that the riser with a contact plate against the lower edge this sprue bushing applies.
  • the riser can be connected to the casting furnace via a metallic bellows joint connected axially elastic and angularly movable be while the casting furnace is held vertically movable to a Applying the riser to the casting table and separating the To allow riser from the casting table.
  • a metallic bellows joint connected axially elastic and angularly movable be while the casting furnace is held vertically movable to a Applying the riser to the casting table and separating the To allow riser from the casting table.
  • the first to method refers and devices in which the melt level in the sealed casting furnace a controllable gas pressure is given up, the melt in the riser rise or fall back.
  • a controllable gas pressure is given up, the melt in the riser rise or fall back.
  • other methods and devices which promote the melt in the riser controllable can, e.g. Magnetic pump assemblies at the bottom of the riser in the pouring furnace.
  • a Slide organ 13 screwed on a casting table 11 having a passage opening 12 .
  • a sprue bushing 15 used at the same time a connection for the unillustrated riser of a caster forms.
  • a down for riser undercut-free opening 16 is provided.
  • the Slider member 13 comprises a cassette 17, the immediacy on the casting table 11 is screwed.
  • This cassette 17 has in turn a lower opening 18 which is aligned with the aforementioned Opening 16 is.
  • a sealing ring 14 is inserted, which sealingly abuts the AnguB bushing 15.
  • a lower slide plate 19 is inserted.
  • the lower one Slider plate 19 is a pressure piece of a in the cassette 17 screwed screw 21 held. Inside the cassette 17, a holder 22 is held horizontally displaceable. In the holder, an upper slide plate 23 is inserted, the has an upper passage opening 24 of the slider member.
  • the bracket 22 is disposed on a carriage 25, the of Guide rails 26 is held in the cassette 17.
  • the pressure cylinder 32, 33, the holder 22 press down so that the Slide plates 19, 23 abut against each other with bias and rest in the cassette 17.
  • On the cassette 17 is an adjusting cylinder unit 28 attached to the over a rod 29 on the Carriage 25 acts so that the holder 22 horizontally in the Cassette 17 can be moved.
  • the lower slide plate 19 has a lower passage opening 20, the upper slide plate 23 has an upper passage opening 24.
  • the holder 22 has a neck extension 34 and the carriage 35th a nozzle receptacle 35.
  • the neck approach 34 is an additional used as an enlarged detailderirig 36, the supplied via a compressed air line 37 with cooling air can be.
  • the cooling ring 36 has inwardly directed air outlet holes 38.
  • a Cooling chamber 39 is formed, which via a further compressed air line 40 is supplied with cooling air.
  • a mold 41 with a downwards facing pouring spigot 42 inserted on the upper slide plate 23 is seated.
  • the mold 41 is from a lid 43rd completed.
  • the sprue 44 of the mold 41 is aligned the upper passage opening 24 and is common with this upward undercut-free, in particular conically opening educated.
  • the mold 41 may be a permanent mold or a Sand mold or a core package.
  • FIG 2 is shown how the carriage 25 with the holder 21 within the cassette 17 by the actuating cylinder 28th moved to the left position after completion of the casting process is, wherein the upper passage opening 24 opposite to the lower Passage opening 20 is sheared off, so that no connection There is more of the riser to the mold. Only at this time is expediently the cooling chamber 39 supplied cooling air, to solidify the melt in the now overlying sprue 44 allow. After the rapid solidification of the melt in the Gullet 44, by the cooling of the sprue 42nd can be accelerated, the mold 41 can be lifted, wherein the plug in the upper passage opening 24th due to its conical up-opening opening Easy to remove from the mold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Sliding Valves (AREA)
  • Casting Devices For Molds (AREA)

Claims (16)

  1. Procédé pour la coulée en source /coulée à basse pression, en particulier d'alliages de métal léger
    avec un four de coulée disposé sous une table de coulée et un tuyau montant et une ouverture de débouché du tuyau montant et
    avec un moule de coulée avec une ouverture d'injection située en bas et,
    avec une fermeture à tiroir, qui forme un canal de passage, qui suit pour la coulée un tracé longitudinal sensiblement droit,
    dans lequel pour le blocage dans la fermeture du tiroir deux parties d'ouverture directement contiguës du canal de passage sont déplacées l'une par rapport à l'autre, , directement après la coulée avec de la masse fondue encore liquide dans l'ouverture d'injection transversalement au tracé longitudinal du canal de passage, de telle sorte qu'une partie d'ouverture située en haut reste reliée de façon ouverte sans contre-dépouille avec l'ouverture d'injection et une partie d'ouverture située en bas reste reliée de façon ouverte avec l'ouverture de débouché du tuyau montant, les parties d'ouverture étant disposées de façon complètement décalée les unes par rapport aux autres et
    dans lequel la masse fondue est refroidie de façon active à l'intérieur de la partie d'ouverture supérieure du canal de passage au plus tard à partir du déplacement des parties d'ouverture du canal de passage les unes par rapport aux autres.
  2. Procédé selon la revendication 1, caractérisé en ce que, après le blocage, la masse fondue est abaissée dans le tuyau montant jusqu'à ce qu'au moins la partie d'ouverture inférieure du canal de passage soit vidée de la masse fondue.
  3. Procédé selon la revendication 2, caractérisé en ce que, après le blocage, la masse fondue est abaissée dans le tuyau montant jusqu'à légèrement au-dessous de l'ouverture de débouché du tuyau montant.
  4. Procédé selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que le tuyau montant est alimenté avec du gaz protecteur lors de l'abaissement de la masse fondue sur l'ouverture de débouché.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la partie d'ouverture située en haut du canal de passage est déplacée conjointement avec l'ouverture d'injection du moule de coulée par rapport à la partie d'ouverture du canal de passage qui est située en bas et est maintenue de façon fixe sur l'ouverture de débouché du tuyau montant.
  6. Procédé selon la revendication 5, caractérisé en ce que le moule de coulée est déplacé en même temps que la partie d'ouverture située en haut du canal de passage.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la masse fondue est refroidie de façon active à l'intérieur de l'ouverture d'injection du moule de coulée au plus tard à partir du déplacement des parties d'ouverture du canal de passage les unes par rapport aux autres.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le moule de coulée est enlevé de la fermeture du tiroir immédiatement après la solidification de la masse fondue dans la partie d'ouverture supérieure du canal de passage et dans l'ouverture d'injection du moule de coulée.
  9. Dispositif pour la coulée/coulée à basse pression en source, en particulier d'alliages de métal léger comprenant
    un four de coulée disposé sous une table de coulée avec un tube montant et une ouverture de débouché du tuyau montant et,
    un moule de coulée avec une ouverture d'injection située en bas et
    une fermeture à tiroir, qui forme un canal de passage qui suit pour la coulée un tracé longitudinal sensiblement droit,
    la fermeture à tiroir (13) étant posée sur la table de coulée (11) et comprenant deux plaques déplaçables l'une par rapport à l'autre, qui présentent chacune une ouverture de passage, les plaques (19, 23) pouvant être mises en recouvrement pour la coulée avec leurs ouvertures de passage (20, 24) et les plaques (19, 23) pouvant être déplacées l'une par rapport à l'autre pour le blocage de telle sorte que l'ouverture de passage (24) dans la plaque (23) supérieure est reliée de façon ouverte avec l'ouverture d'injection (44) sans contre-dépouille et l'ouverture de passage (20) dans la plaque (19) inférieure est reliée de façon ouverte avec l'ouverture de débouché du tuyau montant, alors que les ouvertures de passage (20, 24) sont décalées complètement les unes par rapport aux autres,
    les plaques (19, 23) étant maintenues dans une cassette (17) fixée sur la table de coulée et la plaque (23) supérieure étant maintenue dans une fixation (22) coulissante dans la cassette (17), fixation sur laquelle le moule de coulée (41) peut être posé, et
    le moule de coulée (41) ayant une tubulure d'injection (42) cylindrique inférieure, qui forme l'ouverture d'injection (44), qui peut être insérée de façon ajustée dans une embase de tubulure (34) de la fixation (22), qui est orientée vers l'ouverture de passage (24) dans la plaque (23) supérieure, et
    l'embase de tubulure (34) de la fixation (22) étant entourée par une bague à réfrigérant (36) dans la fixation (22), qui est reliée à une conduite à réfrigérant (37).
  10. Dispositif selon la revendication 9, caractérisé en ce que la face frontale de la tubulure d'injection (42) cylindrique peut être posée sur la plaque (23) supérieure et peut être tendue en particulier contre cette plaque.
  11. Dispositif selon l'une quelconque des revendications 9 ou 10, caractérisé en ce qu'en dessous ou à l'intérieur de la plaque (19) inférieure est conçue une chambre à réfrigérant (39) qui est reliée à une conduite à réfrigérant (40).
  12. Dispositif selon l'une quelconque des revendications 9 à 11, caractérisé en ce qu'un dispositif de commande pour la fixation (22) est disposé sur la cassette (17).
  13. Dispositif selon l'une quelconque des revendications 9 à 12, caractérisé en ce qu'il est prévu des moyens élastiques (30, 31) soutenus dans la cassette et agissant sur la fixation (22), qui maintiennent la plaque (23) supérieure et la plaque (19) inférieure dans la position d'appui pré-tendue.
  14. Dispositif selon l'une quelconque des revendications 9 à 13, caractérisé en ce que le tuyau montant est suspendu de façon élastique et souple dans le four de coulée et le four de coulée peut être réglé en hauteur par rapport à la table de coulée.
  15. Dispositif selon l'une quelconque des revendications 9 à 14, caractérisé en ce que l'ouverture de passage (24) dans la plaque (23) supérieure et éventuellement l'ouverture d'injection (44) s'étendent constamment vers le haut et en particulier présentent une conicité qui s'élargit vers le haut.
  16. Dispositif selon l'une quelconque des revendications 9 à 15, caractérisé en ce que l'ouverture de passage (20) dans la plaque (19) inférieure et éventuellement des parties faisant suite à la plaque vers le bas jusqu'au débouché du tuyau montant et formant le canal de passage s'élargissent constamment vers le bas, et en particulier présentent une conicité s'élargissant vers le bas.
EP01969350A 2000-07-12 2001-07-07 Procede et dispositif de coulee en source comportant une fermeture a tiroir placee sur le plateau de coulee Expired - Lifetime EP1299203B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200130266T SI1299203T1 (en) 2000-07-12 2001-07-07 Method and device for rising casting with a sliding closure that is mounted on the mould frame

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033902A DE10033902C1 (de) 2000-07-12 2000-07-12 Verfahren und Vorrichtung zum steigenden Giessen mit einem auf den Giesstisch aufgesetzten Schieberverschluss
DE10033902 2000-07-12
PCT/EP2001/007823 WO2002004143A2 (fr) 2000-07-12 2001-07-07 Procede et dispositif de coulee en source comportant une fermeture a tiroir placee sur le plateau de coulee

Publications (2)

Publication Number Publication Date
EP1299203A2 EP1299203A2 (fr) 2003-04-09
EP1299203B1 true EP1299203B1 (fr) 2004-10-13

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ID=7648698

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Application Number Title Priority Date Filing Date
EP01969350A Expired - Lifetime EP1299203B1 (fr) 2000-07-12 2001-07-07 Procede et dispositif de coulee en source comportant une fermeture a tiroir placee sur le plateau de coulee

Country Status (14)

Country Link
US (1) US6929052B2 (fr)
EP (1) EP1299203B1 (fr)
AT (1) ATE279280T1 (fr)
AU (2) AU2001289630B2 (fr)
BR (1) BR0112462A (fr)
CA (1) CA2414142A1 (fr)
DE (2) DE10033902C1 (fr)
DK (1) DK1299203T3 (fr)
ES (1) ES2231546T3 (fr)
HU (1) HUP0301481A2 (fr)
MX (1) MXPA03000286A (fr)
PL (1) PL359785A1 (fr)
SK (1) SK252003A3 (fr)
WO (1) WO2002004143A2 (fr)

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DE10033902C1 (de) * 2000-07-12 2001-11-22 Vaw Ver Aluminium Werke Ag Verfahren und Vorrichtung zum steigenden Giessen mit einem auf den Giesstisch aufgesetzten Schieberverschluss
FR2850301B1 (fr) 2003-01-23 2007-10-19 Commissariat Energie Atomique Materiau hybride organique-inorganique comprenant une phase minerale mesoporeuse et une phase organique, membrane et pile a combustible
DE10327454A1 (de) * 2003-06-18 2005-01-20 Juelich Enzyme Products Gmbh Oxidoreduktase aus Pichia capsulata
DE102004016574A1 (de) * 2004-03-31 2005-10-27 Georg Fischer Kokillenguss GmbH Kokillengiessanlage
WO2007128123A1 (fr) * 2006-05-08 2007-11-15 Magna Powertrain Inc. Système de refroidissement de véhicule avec écoulements dirigés
TWI302493B (en) * 2006-06-13 2008-11-01 Advanced Semiconductor Eng System for supplying molding compound
DE102006040256A1 (de) * 2006-08-28 2008-03-06 Ing. Rauch Fertigungstechnik Gmbh Niederdruck-Giessverfahren und Vorrichtung hierfür
DE102009039595B4 (de) * 2009-09-01 2020-10-15 Daimler Ag Niederdruckgießvorrichtung
CH715297A2 (de) * 2018-09-04 2020-03-13 Refractory Intellectual Property Gmbh & Co Kg Verfahren zur Wartung eines Schiebeverschlusses am Ausguss eines metallurgischen Gefässes sowie ein Schiebeverschluss.

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DE10033902C1 (de) * 2000-07-12 2001-11-22 Vaw Ver Aluminium Werke Ag Verfahren und Vorrichtung zum steigenden Giessen mit einem auf den Giesstisch aufgesetzten Schieberverschluss
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Also Published As

Publication number Publication date
SK252003A3 (en) 2003-09-11
MXPA03000286A (es) 2004-12-13
AU2001289630B2 (en) 2004-08-19
US20040250978A1 (en) 2004-12-16
US6929052B2 (en) 2005-08-16
WO2002004143A2 (fr) 2002-01-17
BR0112462A (pt) 2003-07-22
WO2002004143A3 (fr) 2002-06-20
CA2414142A1 (fr) 2002-12-30
ATE279280T1 (de) 2004-10-15
PL359785A1 (en) 2004-09-06
DK1299203T3 (da) 2005-02-07
HUP0301481A2 (en) 2003-08-28
DE50104128D1 (de) 2004-11-18
DE10033902C1 (de) 2001-11-22
EP1299203A2 (fr) 2003-04-09
AU8963001A (en) 2002-01-21
ES2231546T3 (es) 2005-05-16

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