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EP0704261B1 - Moule avec support de noyau et pièce de coulée avec fermeture d'ouverture de noyau - Google Patents

Moule avec support de noyau et pièce de coulée avec fermeture d'ouverture de noyau Download PDF

Info

Publication number
EP0704261B1
EP0704261B1 EP95113440A EP95113440A EP0704261B1 EP 0704261 B1 EP0704261 B1 EP 0704261B1 EP 95113440 A EP95113440 A EP 95113440A EP 95113440 A EP95113440 A EP 95113440A EP 0704261 B1 EP0704261 B1 EP 0704261B1
Authority
EP
European Patent Office
Prior art keywords
core
casting
mould
opening
closure
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
EP95113440A
Other languages
German (de)
English (en)
Other versions
EP0704261A1 (fr
Inventor
Edgar Feickert
Oliver Joerg
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.)
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
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 Ford Werke GmbH, Ford France SA, Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Werke GmbH
Publication of EP0704261A1 publication Critical patent/EP0704261A1/fr
Application granted granted Critical
Publication of EP0704261B1 publication Critical patent/EP0704261B1/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
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/108—Installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor
    • B22C21/12—Accessories
    • B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars

Definitions

  • the invention relates to a casting mold with casting core support and a casting with core opening closure, which in Preamble of claim 1 explained type.
  • openings can occur during processing of the cast part are also processed and e.g. by Machining an internal thread and screwing in a threaded plug be closed.
  • EP-OS 0 443 720 is a possibility for closing known from core openings.
  • the here through the casting core support formed opening may not need to be machined as the pot-shaped core opening plug used through one in its conical inner opening pressed driver is expanded to the outside so that he has a corresponding outer profile for a provides a secure seal against the opening in the casting.
  • lost mold core supports For castings made of aluminum or other skin-forming foundry plugs has this use of lost mold core supports has so far not been successful because there is a difference between lost core support and material of the cast part forms an oxide skin, which is a safe metallurgical Connection not allowed. When the casting shrinks therefore there are micro-cracks at the parting surfaces, which later in the use of the casting for leaks being able to lead.
  • the object of the invention is to provide a casting mold with casting core support and a casting with core opening closure create a subsequent machining of core openings and the subsequent insertion of core opening plugs can be avoided and replaced by simpler measures.
  • this object is achieved by a Cast part mold with core support and a casting with core opening closure in the preamble of claim 1 explained type in the characterizing part of the claim 1 and claim 2 features shown.
  • pot-shaped core opening plugs with a conical inner shape to accommodate a Driver and an already used driver can be caused by the formation of oxide skin and shrinkage of the Casting occurring micro cracks between the casting and the lost casting core support through subsequent driving of the driver can be reliably sealed.
  • a e.g. from a top 1 and a lower part 2 existing casting 3 with a casting cavity 4 formed from that to be cast Casting material, in this case filled with aluminum shall be.
  • a casting core 5 within the casting mold 3 arranged in different places (of which only one is shown) by casting core supports 6 exactly in its predetermined position is held within the mold 3.
  • the conical Recess 9 receives a tapered driver 10.
  • the order consisting of the core opening plug 7 with the only Driver 10 partially inserted therein is cast into the mold 3 inserted and forms the casting core support for the Casting core 5.
  • such a connection is incomplete, because in the case of aluminum casting, there is a lost one Casting core support and the aluminum forms an oxide skin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (2)

  1. Moule de pièce coulée avec support de noyau de coulée, avec un noyau de coulée (5) disposé à l'intérieur d'un moule de pièce coulée (3) pour former une cavité de coulée (4), le noyau de coulée (5) étant maintenu par au moins un support de noyau de coulée (6) profilé sur son côté extérieur, qui reste ultérieurement incorporé dans la pièce coulée,
    caractérisé en ce qu'un support de noyau de coulée sous la forme d'un bouchon d'ouverture de noyau (7) en forme de pot, qui soutient le noyau de coulée (5) et dans lequel un chassoir (10) est déjà partiellement introduit, est disposé dans le moule de pièce coulée (3) pour une pièce coulée en aluminium ou matériaux à couler analogues.
  2. Pièce coulée obtenue à partir d'un moule de pièce coulée selon la revendication 1, caractérisée en ce qu'un bouchon d'ouverture de noyau (7) est pourvu sur sa face extérieure d'un profilage (8) et sur sa face intérieure d'un évidement conique (9), dans lequel le chassoir conique (10) est déjà inséré, le chassoir (10) étant incorporé dans la pièce coulée, et entièrement enfoncé à la suite du refroidissement de la pièce coulée (11).
EP95113440A 1994-09-24 1995-08-26 Moule avec support de noyau et pièce de coulée avec fermeture d'ouverture de noyau Expired - Lifetime EP0704261B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434139A DE4434139C1 (de) 1994-09-24 1994-09-24 Gußteilform mit Gießkernabstützung und Gußteil mit Kernöffnungsverschluß
DE4434139 1994-09-24

Publications (2)

Publication Number Publication Date
EP0704261A1 EP0704261A1 (fr) 1996-04-03
EP0704261B1 true EP0704261B1 (fr) 1998-08-19

Family

ID=6529085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113440A Expired - Lifetime EP0704261B1 (fr) 1994-09-24 1995-08-26 Moule avec support de noyau et pièce de coulée avec fermeture d'ouverture de noyau

Country Status (2)

Country Link
EP (1) EP0704261B1 (fr)
DE (2) DE4434139C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819007A1 (de) * 1998-04-28 1999-11-04 Jonathan Aerospace Materials E Vorrichtung und Verfahren zum Gießen von dreidimensional strukturierten Gegenständen
DE19905887C1 (de) * 1999-02-11 2000-08-24 Abb Alstom Power Ch Ag Hohlgegossenes Bauteil
DE10019310C1 (de) * 2000-04-19 2001-10-25 Vaw Mandl & Berger Gmbh Linz Gießform, umfassend Außenformteile und darin eingelegte Formstoffkerne
DE50113629D1 (de) * 2001-04-04 2008-04-03 Siemens Ag Verfahren zur Herstellung einer Turbinenschaufel
WO2009112400A1 (fr) 2008-03-11 2009-09-17 Alstom Technology Ltd Objet moulé coulé en creux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674772C (de) * 1936-05-29 1939-05-15 Ludwig Foebus Komm Ges Einzugiessende Giessereibedarfsgegenstaende
US2821323A (en) * 1955-12-07 1958-01-28 Lee Co Pin plug
US5160226A (en) * 1990-02-22 1992-11-03 The Lee Company Tapered expansion sealing plug

Also Published As

Publication number Publication date
DE59503248D1 (de) 1998-09-24
EP0704261A1 (fr) 1996-04-03
DE4434139C1 (de) 1995-08-31

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