EP0894557B2 - Procédé de moulage de pièces coulées et moule utilisant un tel procédé - Google Patents

Procédé de moulage de pièces coulées et moule utilisant un tel procédé Download PDF

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Publication number
EP0894557B2
EP0894557B2 EP98104851A EP98104851A EP0894557B2 EP 0894557 B2 EP0894557 B2 EP 0894557B2 EP 98104851 A EP98104851 A EP 98104851A EP 98104851 A EP98104851 A EP 98104851A EP 0894557 B2 EP0894557 B2 EP 0894557B2
Authority
EP
European Patent Office
Prior art keywords
casting
vertical channel
plunger
channel
casting mould
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
EP98104851A
Other languages
German (de)
English (en)
Other versions
EP0894557B1 (fr
EP0894557A1 (fr
Inventor
Herbert Dipl.-Ing. Grolla
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.)
Heinrich Wagner Sinto Maschinenfabrik GmbH
Original Assignee
Heinrich Wagner Sinto Maschinenfabrik 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
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Application filed by Heinrich Wagner Sinto Maschinenfabrik GmbH filed Critical Heinrich Wagner Sinto Maschinenfabrik GmbH
Publication of EP0894557A1 publication Critical patent/EP0894557A1/fr
Publication of EP0894557B1 publication Critical patent/EP0894557B1/fr
Application granted granted Critical
Publication of EP0894557B2 publication Critical patent/EP0894557B2/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • 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
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners

Definitions

  • the invention relates to a method for pouring a mold having a mold box from below in increasing casting with a casting from a casting container through a riser channel, which is formed for the inflow of rising from below into the mold casting compound in the molding sand of the mold, wherein immediately interrupted after completion of the filling of the mold, the riser channel in the region of the molding sand and thus closed so that the mold is separable from the casting container.
  • the invention has for its object to enable the application of the known Verschplitechnik when casting a mold box having a mold from below in increasing casting with a casting material from a casting container through a riser.
  • the riser By shaped in the molding sand, reaching into the vicinity of the riser punch channel, which is oriented transversely to the axis of the riser, the riser can be securely shut off because a defined molding sand area is inserted through the punch in the riser.
  • a plug is arranged in the punch channel, which ensures that the punch channel remains closed even after the closing of the riser.
  • the discharge pressure is placed on the surface of the casting, so that the desired continuous. Working process is achieved because the mold can now be replaced immediately.
  • a particularly advantageous embodiment of the invention undergoes the casting process when the casting material in the casting container is exposed on its surface to a pneumatic delivery pressure and the casting material by at least one immersed in the casting compound, vertical riser and by the aligned with the riser and with this a common Riser is pressed for the inflow of the casting material forming riser into the mold located above the riser.
  • the entire riser extends perpendicularly and is accessible in the region of the riser channel of a constriction made in the casting mold.
  • a mold 1, 2 consists of two vertically divided mold halves 1 and 2 with a molding sand enclosed mold cavity 3, in which a central, directed vertically downwards, formed in the molding sand riser 4 opens; the riser channel 4 with a best circular cross-section ends on the other hand at the free end face 10 of a likewise vertically running riser 8, which is aligned with the riser channel 4 and forms with it a permeable for a casting compound 7 riser 4, 8 as long as the mold. 1 , 2 is placed on a casting container 5, 6.
  • the casting container 5, 6 is composed of a crucible 6 and a patch on the crucible 6 head piece 5, which closes the crucible 6 tight and except the centrally arranged riser 8 still has a pipe socket 9, both above the surface 11 of the in the Crucible 6 located liquid casting 7 end.
  • the pipe socket serves. 9 for the flow connection of the casting container 5, 6 with a compressed air source.
  • a hydraulic piston motor 12 is installed, the plunger 13 in a direction perpendicular to the axis of the riser channel 4 in the direction 14 Casting mold 1, 2 is movable and thereby exerts a stamping pressure on the molding sand therein.
  • the plunger 13 exerts its stamping force directly on the mold sand 1, 2 completely filling and only the mold cavity 3 and the riser channel 4 free molding sand, wherein the plunger 13 (Fig. 2) after the casting so far into the mold 1, 2 is retracted until the riser channel 4 is interrupted by compacted and pressed in its cross section molding sand and so a backflow of the filled already in the mold cavity 3 molding compound 7 is prevented.
  • the first diametrically opposed plunger can be provided to also charge on the opposite side of the mold 1, 2 the molding sand accordingly and in this way to be able to constrict the riser 4 from two sides.
  • a punch channel 15 or 16 is formed in the casting mold 1, 2, which is adapted in the direction 14 and in its cross section to the plunger 13 and up to the riser channel 4 (FIG 4) or beyond (FIGS. 5, 6).
  • the punch channel 15 alone can serve to facilitate the work of the plunger 13, in the arrangement of Fig. 4, a plug 17 is inserted into a mating punch channel 16, from the plunger 13 to the closure of the riser 4 is displaceable.
  • a plug 17 is inserted into a mating punch channel 16, from the plunger 13 to the closure of the riser 4 is displaceable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (6)

  1. Procédé de coulée dans un moule (1, 2) comportant un châssis, depuis le bas, en coulée ascendante, d'une masse de coulée (7) provenant d'une cuve de coulée (5, 6) par un canal ascendant (4) formé pour l'afflux de masse de coulée (7) affluant depuis le bas dans le moule (1, 2) dans le sable de moulage du moule (1, 2) dans lequel, dès que le remplissage du moule (1, 2) est terminé, le canal ascendant (4) est coupé au niveau du sable de moulage et ainsi obturé de manière à ce que le moule (1, 2) puisse être séparé de la cuve de coulée (5, 6),
    dans lequel, dans le sable de moulage du moule (1, 2), un canal de poinçonnage (15) ouvert vers l'extérieur et adapté en orientation (14) et en section transversale au plongeur au plongeur (13) est formé pour recevoir un plongeur (13), va jusqu'à proximité du canal ascendant (4) et est orienté transversalement par rapport à l'axe du canal ascendant, tandis que le canal ascendant (4) est obturé par décalage du sable de moulage au moyen du plongeur (13) dans le canal ascendant (4).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la masse de coulée (7) stockée dans le récipient de coulée (5, 6) est exposée sur sa surface (11) à une pression de convoyage pneumatique (p) et que la masse de coulée (7) est comprimée par au moins un tuyau ascendant vertical (8) plongeant dans la masse de coulée (7) et par le canal ascendant (4) aligné avec le tuyau ascendant (8) et formant avec celui-ci une conduite ascendante commune (4, 8) pour permettre l'afflux de la masse de coulée (7) dans le moule (1, 2) se trouvant au dessus du tuyau ascendant (9).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que,
    dès que l'afflux dans le canal ascendant (4) est coupé, la pression de convoyage (p) sur la surface (11) de la masse de coulée (7) est suspendue.
  4. Moule pour la réalisation d'un procédé suivant une des revendications 1 à 3, comportant un châssis et une cavité de coulée formée dedans dans du sable de moulage et destinée à recevoir la masse de coulée,
    caractérisé en ce que,
    dans le sable de moulage, est formé un canal de poinçonnage ouvert vers l'extérieur (15) qui est adapté par son orientation (14) et sa section transversale au plongeur (13) pour recevoir un plongeur (13), va jusqu'à proximité du canal ascendant (4) et est orienté transversalement par rapport à l'axe du canal ascendant.
  5. Moule selon la revendication 4,
    caractérisé en ce que
    il prévu dans le canal de poinçonnage (16) un bouchon (17) qui peut être enfoncé dans le canal ascendant (4) et le barre.
  6. Moule selon une des revendications 4 ou 5,
    caractérisé en ce que
    le canal ascendant (4) est disposé parallèlement au plan de la pièce moulée.
EP98104851A 1997-08-01 1998-03-18 Procédé de moulage de pièces coulées et moule utilisant un tel procédé Expired - Lifetime EP0894557B2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19733485A DE19733485A1 (de) 1997-08-01 1997-08-01 Verfahren zum Formgießen und Gießform für ein solches Verfahren
DE19733485 1997-08-01
CZ19984016A CZ9804016A3 (cs) 1997-08-01 1998-12-07 Způsob lití do forem a licí forma pro takovýto způsob
US09/217,709 US6305460B1 (en) 1997-08-01 1998-12-21 Method for casting
JP10374685A JP2000197960A (ja) 1997-08-01 1998-12-28 鋳造方法およびこの方法のための鋳型

Publications (3)

Publication Number Publication Date
EP0894557A1 EP0894557A1 (fr) 1999-02-03
EP0894557B1 EP0894557B1 (fr) 2002-04-24
EP0894557B2 true EP0894557B2 (fr) 2006-09-06

Family

ID=27430162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104851A Expired - Lifetime EP0894557B2 (fr) 1997-08-01 1998-03-18 Procédé de moulage de pièces coulées et moule utilisant un tel procédé

Country Status (8)

Country Link
US (1) US6305460B1 (fr)
EP (1) EP0894557B2 (fr)
JP (1) JP2000197960A (fr)
AT (1) ATE216642T1 (fr)
CZ (1) CZ9804016A3 (fr)
DE (2) DE19733485A1 (fr)
ES (1) ES2173522T5 (fr)
PL (1) PL327479A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152853A1 (fr) * 1999-01-28 2001-11-14 Disa Industries A/S Procede et appareil de moulage
DE19920267A1 (de) * 1999-05-03 2000-11-09 Wagner Heinrich Sinto Masch Verfahren und Vorrichtung zum Füllen von Gießformen mit flüssigen Metallen
US6644381B1 (en) * 1999-07-02 2003-11-11 International Engine Intellectual Property Company, Llc Casting method and apparatus
DE19935357C1 (de) * 1999-07-29 2001-05-10 Wagner Heinrich Sinto Masch Gießeinrichtung für eine Gießereiformanlage
WO2001028712A1 (fr) 1999-10-15 2001-04-26 Loramendi, S.A. Procede de coulee de metaux dans un moule de sable vert et dispositif d'obturation du canal de coulee
DE19953402A1 (de) * 1999-11-06 2001-05-10 Wagner Heinrich Sinto Masch Verfahren und Vorrichtung zum Herstellen und Abgießen einer aus zwei Formhälften bestehenden Gießform
DE102009039595B4 (de) * 2009-09-01 2020-10-15 Daimler Ag Niederdruckgießvorrichtung
CN102211166A (zh) * 2010-04-02 2011-10-12 中煤张家口煤矿机械有限责任公司 铸铝件砂模低压铸造成型工艺
CN114210932B (zh) * 2022-02-21 2022-04-22 龙口市和义机械配件有限公司 一种加快铁水流速的浇道优化结构及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905419A (en) * 1970-09-29 1975-09-16 Gravicast Patent Gmbh Device for rise casting into a mold
GB1410770A (en) * 1971-12-03 1975-10-22 Dimo Holdings Methods and apparatus for casting metal
DE69228998T2 (de) * 1991-12-07 1999-12-02 Alloy Techn Ltd Giessen von leichtmetall-legierungen
RU2127172C1 (ru) * 1994-05-27 1999-03-10 Георг Фишер Диса А/С Способ закрытия входа в литейную форму после неграфитационного литья нежелезного сплава в сырые литейные формы рядной устанвоки (варианты)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Brockhaus Naturwissenschaften und Technik, Bd. 2, Mannheim 1989, Seiten 204-206 †
Dubbel Taschenbuch für den Maschinbau, 18. Auflage, Berlin/Heidelberg, 1995, Seite S10 †

Also Published As

Publication number Publication date
CZ9804016A3 (cs) 2001-08-15
JP2000197960A (ja) 2000-07-18
PL327479A1 (en) 1999-02-15
DE19733485A1 (de) 1999-02-04
ES2173522T3 (es) 2002-10-16
ES2173522T5 (es) 2007-05-01
EP0894557B1 (fr) 2002-04-24
DE59803900D1 (de) 2002-05-29
ATE216642T1 (de) 2002-05-15
US6305460B1 (en) 2001-10-23
EP0894557A1 (fr) 1999-02-03

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