EP0894557A1 - 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
EP0894557A1
EP0894557A1 EP98104851A EP98104851A EP0894557A1 EP 0894557 A1 EP0894557 A1 EP 0894557A1 EP 98104851 A EP98104851 A EP 98104851A EP 98104851 A EP98104851 A EP 98104851A EP 0894557 A1 EP0894557 A1 EP 0894557A1
Authority
EP
European Patent Office
Prior art keywords
riser
casting
channel
mold
compound
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
EP98104851A
Other languages
German (de)
English (en)
Other versions
EP0894557B1 (fr
EP0894557B2 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27430162&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0894557(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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
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
    • B22C9/02—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 casting mold from below in increasing casting with one Casting compound from a casting container through a riser, the one for the inflow of the bottom into the mold ascending pouring compound in the molding sand of the Mold is molded, as well as a mold for one such procedure.
  • the casting compound is one Delivery pressure exposed, which after the pouring still must be maintained long until the casting compound is solidified in the mold so that it does not Can pour back. Only then can the delivery pressure withdrawn and the filled against one new mold to be replaced for the next cast.
  • Those for cooling those filled in the mold Casting time required slows down the casting process, because casting a mold in increasing Casting is a very rational process that is also suitable for Casting molds made of molding sand can be used can be produced quickly and in large quantities; the waiting times required for the casting compound to cool down are therefore particularly disruptive here.
  • the object of the invention is therefore to such a method and an associated mold so to design that the promotional pressure for the promotion of Pour pouring compound from the pouring container into the mold immediately can be omitted if the mold is filled with casting compound is.
  • the task with the features of Claim 1 solved.
  • the mold and the casting container are flow decoupled in relation to the casting compound and the discharge pressure can be eliminated.
  • a new mold can be connected to the pouring vessel immediately afterwards be that the casting process again already then can be initiated again if the previously cast form is not yet solidified.
  • Such one Casting process is therefore advantageous in one continuous manufacturing process can be used.
  • a particularly advantageous embodiment of the invention experiences the pouring process when in the pouring can Casting material available on the surface of a pneumatic Delivery pressure is exposed and the casting compound by at least one immersed in the casting compound, vertical riser pipe and through that with the riser pipe aligned and with this a common riser for the inflow of the casting compound forming the riser into the mold located above the riser is pressed.
  • the entire riser runs here vertical and is one in the area of the riser Constriction made in the mold accessible.
  • a thin gate valve for example a metal strip in which Rise channel transverse to its axis and its cross section is inserted covering.
  • the metal strip can thereby from a pressure stamp or manually into the Area of the riser through the molding sand become. It is even easier if the riser is in a preferably short section through a cross exercised on its axis, shifting the molding sand and / or compressing punch force at least one preferably constricted hydraulically operated pressure stamp becomes; doing this is only by moving and / or compacting the molding sand of the riser, being immediately after the flow in the riser is interrupted, the delivery pressure the surface of the casting compound is turned off so that the desired continuous work process has been achieved, because the mold can now be replaced immediately.
  • Casting mold is characterized, for example, that in the molding sand a preferably up reaching near the riser, across to the Axis of the riser oriented in the molding sand of the Mold molded or stamped with the pressure stamp Stamp channel is in which a plug can be provided and so by the pressure stamp in the Rising channel can be pressed that this is shut off.
  • the stamp channel is designed as a slide guide in which a disc-shaped Slider is provided so that one in the Slider located, the flow cross section of the Riser adapted flow opening just with the Rise channel is aligned, the slide using the Stamp can be moved so far that the Riser is blocked.
  • the riser lies either in or parallel to the mold plane of the mold, while the riser with a lying cast Casting mold is arranged perpendicular to the plane of the molded part.
  • the stamp channel In the case of a cast mold lying horizontally, the stamp channel must be made wider so that insertion and a relative movement of the stamp to close of the riser is possible. More beneficial Refinements emerge from the subclaims forth.
  • a mold 1, 2 consists of two vertically divided mold halves 1 and 2 with one of Mold cavity 3, in which a central, vertically downward, in the molding sand molded riser 4 opens; the riser 4 on the other hand ends with a best circular cross section on the free end face 10 also one vertically executed riser pipe 8, with the Rise channel 4 is aligned and with this one for one Casting compound 7 permeable riser 4, 8 as long forms, like the casting mold 1, 2 on a casting container 5, 6 is attached.
  • the casting container 5, 6 settles out a crucible 6 and one placed on the crucible 6 Head piece 5 together, which seals the crucible 6 tightly and in addition to the centrally located riser pipe 8 still has a pipe socket 9, both above the surface 11 of those located in the crucible 6 liquid casting compound 7 ends.
  • the casting compound 7 in the Mold cavity 3 is pressed when the mold 1, 2nd placed on the casting container 5, 6, the riser 4, 8 and the surface 11 a pneumatic
  • the pipe socket is used to discharge pressure p 9 for flow connection of the casting container 5, 6 with a compressed air source.
  • a hydraulic piston motor 12 is installed, whose stamp 13 in one on the axis of the riser 4 vertical direction 14 in the mold 1, 2 is movable and thereby a stamp printing on the molding sand contained therein.
  • the pressure stamp exercises 13 its stamping force directly on the mold 1, 2 completely filling and only the mold cavity 3 and the riser 4 leaving molding sand on, with the pressure stamp 13 (Fig. 2) after the casting so far into the mold 1, 2 until the Rise channel 4 through compressed and in its cross section pressed molding sand is interrupted and so one Reflux of those already filled in the mold cavity 3 Casting compound 7 is prevented.
  • a another, diametrically opposed to the first Stamp can be provided to be on the opposite Side of the casting mold 1,2 also the molding sand to burden accordingly and in this way the To be able to constrict riser duct 4 from two sides.
  • a stamp channel 15 or 16 is molded into the casting mold 1, 2, the in the direction 14 and cross section of the pressure stamp 13 is adapted and up to the riser 4th (Fig. 3, 4) or beyond (Fig. 5, 6) is sufficient.
  • stamp channel 15 alone according to FIG. 3 can serve to work the plunger 13 facilitate
  • Such an execution is particularly advantageous if the molding sand is chemical is bound and the pressure stamp 13 accordingly opposes high resistance if this in the Molding sand is retracted.
  • FIG. 5 Another embodiment of a casting arrangement according to the invention 5, 6 show before and after the casting.
  • a slide 18 is inserted into the stamp channel 16, which is deeply immersed in the molding sand, that the slider 18 without further compression of the molding sand with the pressure stamp 13 after casting has been completed is displaceable that a provided in the slide 18, before and during the casting process (Fig. 5) in Area of the riser 4 and a part of the riser 4.8 forming flow opening 19 is not is more effective (Fig. 6), the mold 1,2 shuts off and so also a reflux of the casting compound 7 from the Mold 1,2 prevented.
  • This pouring arrangement differs from that 1 to 6 essentially in that the Casting mold is poured lying, which gives the advantage results in a lower static pressure within the mold is built up.
  • the mold becomes on a conveyor track 20 to the Transported casting arrangement, at which it is lowered, so that the riser pipe 8 lies tightly against the riser duct 4. Following this, the mold is placed over the riser 8 filled, as shown in Fig. 8.
  • the Press piece 21, which engages in the stamp channel 15, is moved via a pneumatic cylinder 12, so that, as shown in Fig. 9, the sand in the riser channel 4 is pressed in and closes it.
  • Fig. 10 shows the position in which the riser 4 closed and the press piece 21 withdrawn again is.
  • the mold 1, 2 is then raised and transported away on the transport track 20. Otherwise this embodiment corresponds to that in FIGS 6 described, so that reference is made to this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Mold Materials And Core Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
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 true EP0894557A1 (fr) 1999-02-03
EP0894557B1 EP0894557B1 (fr) 2002-04-24
EP0894557B2 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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072341A1 (fr) * 1999-07-29 2001-01-31 Heinrich Wagner Sinto Maschinenfabrik GmbH Dispositif de coulée pour une installation de fonderie
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
EP1097767A1 (fr) * 1999-11-06 2001-05-09 Heinrich Wagner Sinto Maschinenfabrik GmbH Procédé et dispositif pour la fabrication d'un moule constitué de deux demi-moules et la coulée de métal liquide dans un tel moule
US6453978B1 (en) * 1999-05-03 2002-09-24 Heinrich Wagner Sinto Maschinenfabrik Gmbh Method and an apparatus for filling of molds with liquidy metals
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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU223609B1 (hu) * 1999-01-28 2004-10-28 Disa Industries A/S Eljárás és berendezés vas- vagy nehézfém-öntvények formázósoron történő előállítására
ATE297823T1 (de) * 1999-07-02 2005-07-15 Int Engine Intellectual Prop Verfahren und vorrichtung zum giessen
DE102009039595B4 (de) * 2009-09-01 2020-10-15 Daimler Ag Niederdruckgießvorrichtung
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

Citations (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
WO1993011892A2 (fr) * 1991-12-07 1993-06-24 Baxi Partnership Limited Coulage d'alliages de metaux legers
WO1995032826A1 (fr) * 1994-05-27 1995-12-07 Georg Fischer Disa A/S Methodes pour fermer l'entree d'un moule apres une coulee, faite sans implication de la force de gravite, d'un alliage non ferreux dans un moule au sable vert d'une installation a moules multiples

Patent Citations (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
WO1993011892A2 (fr) * 1991-12-07 1993-06-24 Baxi Partnership Limited Coulage d'alliages de metaux legers
WO1995032826A1 (fr) * 1994-05-27 1995-12-07 Georg Fischer Disa A/S Methodes pour fermer l'entree d'un moule apres une coulee, faite sans implication de la force de gravite, d'un alliage non ferreux dans un moule au sable vert d'une installation a moules multiples

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6453978B1 (en) * 1999-05-03 2002-09-24 Heinrich Wagner Sinto Maschinenfabrik Gmbh Method and an apparatus for filling of molds with liquidy metals
US6460605B1 (en) * 1999-05-03 2002-10-08 Heinrich Wagner Sinto Maschinenfabrik Gmbh apparatus for filling of molds with liquidy metals
EP1072341A1 (fr) * 1999-07-29 2001-01-31 Heinrich Wagner Sinto Maschinenfabrik GmbH Dispositif de coulée pour une installation de fonderie
TR200002194A2 (tr) * 1999-07-29 2001-03-21 Heinrich Wagner Sinto Maschinenfabrik Gmbh Dökümhane kalıplama sistemi için bir döküm cihazı
TR200002194A3 (tr) * 1999-07-29 2001-03-21 Heinrich Wagner Sinto Maschinenfabrik Gmbh Dökümhane kaliplama sistemi için bir döküm cihazi
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
US6659163B2 (en) 1999-10-15 2003-12-09 Loramendi, S.A. Method for metal casting in green-sand molds and casting gutter sealing device
EP1097767A1 (fr) * 1999-11-06 2001-05-09 Heinrich Wagner Sinto Maschinenfabrik GmbH Procédé et dispositif pour la fabrication d'un moule constitué de deux demi-moules et la coulée de métal liquide dans un tel moule
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

Also Published As

Publication number Publication date
ES2173522T5 (es) 2007-05-01
CZ9804016A3 (cs) 2001-08-15
JP2000197960A (ja) 2000-07-18
US6305460B1 (en) 2001-10-23
PL327479A1 (en) 1999-02-15
EP0894557B1 (fr) 2002-04-24
ES2173522T3 (es) 2002-10-16
EP0894557B2 (fr) 2006-09-06
ATE216642T1 (de) 2002-05-15
DE19733485A1 (de) 1999-02-04
DE59803900D1 (de) 2002-05-29

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