EP1985392A1 - Insert d'alimenteur doté d'une zone de sol gainée - Google Patents

Insert d'alimenteur doté d'une zone de sol gainée Download PDF

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Publication number
EP1985392A1
EP1985392A1 EP08007344A EP08007344A EP1985392A1 EP 1985392 A1 EP1985392 A1 EP 1985392A1 EP 08007344 A EP08007344 A EP 08007344A EP 08007344 A EP08007344 A EP 08007344A EP 1985392 A1 EP1985392 A1 EP 1985392A1
Authority
EP
European Patent Office
Prior art keywords
feeder
bottom portion
opening
insert according
metal
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.)
Withdrawn
Application number
EP08007344A
Other languages
German (de)
English (en)
Inventor
Jürgen Schäfer
Joachim Kramer
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.)
GTP Schaefer Giesstechnishe Produkte GmbH
Original Assignee
GTP Schaefer Giesstechnishe Produkte 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 GTP Schaefer Giesstechnishe Produkte GmbH filed Critical GTP Schaefer Giesstechnishe Produkte GmbH
Publication of EP1985392A1 publication Critical patent/EP1985392A1/fr
Withdrawn legal-status Critical Current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
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads

Definitions

  • the invention relates to a feeder insert for insertion into a mold used in the casting of metals with a feeder volume having a feeder body of an exothermic and / or insulating material, wherein the feeder volume containing feeder body side walls, a lid portion and a bottom portion with a feed opening formed therein as a connection to the mold cavity of the mold and the bottom portion tapers conically towards the feeder opening.
  • Such a feeder insert is for example from the DE 101 56 571 C1 known.
  • the feeder body is placed during molding on a possibly also formed as a spring mandrel retaining mandrel of the mold cavity of the mold forming model. During the molding process, the feeder body can be placed on the model with its lower bottom surface.
  • the bottom portion has a tapered shape toward the bottom bottom surface with the feeder opening formed therein.
  • the invention is therefore based on the object, a feeder insert of the type mentioned in such a way that the self-adjusting in its use breaking edge for the feeder remainder has a defined contour.
  • the basic idea of the invention is that the bottom region of the feeder body is provided on its outside with a metal collar which extends over at least a portion of its height and is collar-shaped and encloses the feeder opening.
  • the invention initially has the advantage that the metal casing applied to the bottom area of the feeder forms a protection for this floor area and avoids its damage due to the acting mold pressure; Thus, a defined feeder opening and thus a defined breaking edge for the extending through the feeder feeder feeder is initially given.
  • the smooth outer surface of the metal shell facilitates any advancement of the feeder body, possibly during the molding process, towards the model, which likewise benefits the formation of a defined breaking edge.
  • the metal shell detects a portion of the height of the floor area which is to be determined in a suitable manner by the average person skilled in the art and in which the greatest load occurs during the molding process. In this case, the metal shell detects the optionally depending on the design of the feeder body still provided bottom surface and extends to the feeder opening zoom, which he encloses with a defined edge.
  • the metal jacket applied according to the invention furthermore makes it possible to carry out the conical narrowing of the bottom region at a radius to the feed opening, at least in the region enclosed by the metal casing, while maintaining the stability of the feeder insert in one embodiment of the invention.
  • a plane bottom surface of the feeder lower part enclosing the feeder opening can be largely avoided, so that the bottom area of the feeder body immediately forms a constriction around the feeder opening.
  • This also further improves the formation of a defined crushing edge. It is advantageously added that with such a training according to material savings are connected to exothermic and / or insulating material.
  • the base region of the feeder body provided with the metal jacket tapers with a chamfer towards the feeder opening.
  • the metal casing extends into the feed opening with a projection, thereby enclosing the inner edge of the feed opening; in this case, the the feed opening enclosing inner edge additionally protected by the action of the molding pressure.
  • the metal shell consists of a thin-walled sheet-metal body which is adapted to the contour of the bottom region and can be placed on the outer contour of the bottom region of the feeder body.
  • the sheet metal body may be connected to the bottom portion of the feeder body by gluing or shrunk onto the bottom portion.
  • the invention is also applicable to designs of feeder sleeves in which the feeder body is formed in two parts with a feeder upper part and with a feeder lower part which can be inserted under load into the feeder upper part;
  • Such training is for example from the EP 1 84 104 A1 known.
  • the bottom portion of the feeder body provided with the metal shell is formed on the feeder base.
  • FIG. 1 results in a feeder body 10 of a feeder insert side walls 11, a cover 12 and a bottom portion 14, wherein within the feeder body a feeder volume 13 is formed, which serves to receive the metal which ascends during casting of the metal into the casting mold.
  • the bottom portion 14 of the feeder body 10 has a feeder opening 16 as a connection to the mold cavity, not shown, of the mold, wherein in the illustrated embodiment, the feeder opening 16 is formed in a lower bottom surface 15 of the bottom portion 14.
  • the bottom region 14 has a conically tapered shape towards the bottom bottom surface 15.
  • the feeder opening 16 detecting metal shell 17 applied, which may be formed for example as a preformed sheet metal body, which is placed on the bottom portion 14 of the feeder body 10 and with this is connected for example by gluing.
  • the metal shell 17 in addition to a projecting into the feeder opening 16 approach 18 which surrounds the inner edge of the feeder opening 16 and thus protects in a special way.
  • the invention is also applicable to a feeder insert
  • the feeder body is formed in two parts with a feeder shell 20 and a feeder base 21, wherein the feeder shell 20 and feeder base 21 together form the feeder volume 13 of the feeder body.
  • the feeder lower part 21 is displaceable in a manner known per se from the prior art with respect to the feeder upper part 20, in particular for the reduction of the load occurring during the forming process, can be inserted into the feeder upper part 20 in a yielding manner.
  • FIG. 2 results in, provided with the metal shell 17 bottom portion 14 of the Feiserunterteils 21 tapers with a radius directly to the feeder opening 16 so that in the region of the feeder opening 16 of the metal shell 17 of the Feiserunterteils 21 forms a constriction, which forms a defined breaking edge for the casting process Feeder remainder favors.
  • FIG. 1 described approach 18 is not essential, is in the too FIG. 2 described embodiment has been dispensed with the formation of the approach.
EP08007344A 2007-04-18 2008-04-15 Insert d'alimenteur doté d'une zone de sol gainée Withdrawn EP1985392A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200720005575 DE202007005575U1 (de) 2007-04-18 2007-04-18 Speisereinsatz mit metallisch ummanteltem Bodenbereich

Publications (1)

Publication Number Publication Date
EP1985392A1 true EP1985392A1 (fr) 2008-10-29

Family

ID=38190573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007344A Withdrawn EP1985392A1 (fr) 2007-04-18 2008-04-15 Insert d'alimenteur doté d'une zone de sol gainée

Country Status (2)

Country Link
EP (1) EP1985392A1 (fr)
DE (1) DE202007005575U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010012663U1 (de) 2010-09-16 2010-11-18 GTP Schäfer Gießtechnische Produkte GmbH Speiseranordnung mit einem Überlaufschutz
ES2541636T3 (es) 2012-04-30 2015-07-22 Foseco International Limited Manguito de alimentación
DE202013105617U1 (de) 2013-12-10 2014-09-11 Foseco International Limited Speiseranordnung mit einer Auslaufdichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9303392U1 (de) * 1993-03-09 1994-03-03 Chemex Gmbh Speisereinsatz
EP1184104A1 (fr) * 2000-08-08 2002-03-06 Chemex Gmbh Insert pour masselotte
DE10156571C1 (de) * 2001-11-20 2003-01-16 Gtp Schaefer Giestechnische Pr Speisereinsatz mit Schutzkappe
DE20122062U1 (de) * 2000-08-08 2004-02-12 Chemex Gmbh Speisereinsatz
WO2005030412A1 (fr) * 2003-09-29 2005-04-07 Elkem Asa Manchon destine a etre utilise dans des machines de moulage en sable pour fonderies
WO2005095021A2 (fr) 2004-04-02 2005-10-13 AS Lüngen GmbH & Co. KG Alimentateur a ecran ou a chevilles
EP1728570A1 (fr) * 2005-06-04 2006-12-06 GTP-Schäfer Giesstechnische Produkte GmbH Masselotte avec un bas sous

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9303392U1 (de) * 1993-03-09 1994-03-03 Chemex Gmbh Speisereinsatz
EP1184104A1 (fr) * 2000-08-08 2002-03-06 Chemex Gmbh Insert pour masselotte
DE20122062U1 (de) * 2000-08-08 2004-02-12 Chemex Gmbh Speisereinsatz
DE10156571C1 (de) * 2001-11-20 2003-01-16 Gtp Schaefer Giestechnische Pr Speisereinsatz mit Schutzkappe
WO2005030412A1 (fr) * 2003-09-29 2005-04-07 Elkem Asa Manchon destine a etre utilise dans des machines de moulage en sable pour fonderies
WO2005095021A2 (fr) 2004-04-02 2005-10-13 AS Lüngen GmbH & Co. KG Alimentateur a ecran ou a chevilles
EP1728570A1 (fr) * 2005-06-04 2006-12-06 GTP-Schäfer Giesstechnische Produkte GmbH Masselotte avec un bas sous

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GRAB K J ET AL: "KOSTENVERGLEICH VON NATURSPEISERN UND SPEISERN MIT EXOTHERMEN EINSATZEN FUER GUSSEISEN MIT KUGELGRAPHIT", GIESSEREI, GIESSEREI VERLAG, DUSSELDORF, DE, vol. 77, no. 9, 30 April 1990 (1990-04-30), pages 312 - 316, XP000134338, ISSN: 0016-9765 *

Also Published As

Publication number Publication date
DE202007005575U1 (de) 2007-06-14

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