WO2014207221A1 - Manchon de masselotte à pied métallique isolé - Google Patents

Manchon de masselotte à pied métallique isolé Download PDF

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Publication number
WO2014207221A1
WO2014207221A1 PCT/EP2014/063739 EP2014063739W WO2014207221A1 WO 2014207221 A1 WO2014207221 A1 WO 2014207221A1 EP 2014063739 W EP2014063739 W EP 2014063739W WO 2014207221 A1 WO2014207221 A1 WO 2014207221A1
Authority
WO
WIPO (PCT)
Prior art keywords
feeder
metal base
insulation
cavity
metal
Prior art date
Application number
PCT/EP2014/063739
Other languages
German (de)
English (en)
Inventor
Thomas Schäfer
Tobias Hesse
Original Assignee
Gtp Schäfer Giesstechnische 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 Schäfer Giesstechnische Produkte Gmbh filed Critical Gtp Schäfer Giesstechnische Produkte Gmbh
Publication of WO2014207221A1 publication Critical patent/WO2014207221A1/fr

Links

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
    • B22C9/084—Breaker cores
    • 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, comprising a feeder comprising an inner cavity as a feeder volume, consisting of an exothermic and / or insulating material feeder body having a feeder opening for connecting the cavity with the mold cavity of the mold and at the lower bottom surface thereof facing the mold cavity there is disposed a metal foot having a contour projecting and conically tapered as a whole and thereby forming an axial distance between the feeder body and the model, one with the feeder opening of the feeder body having aligned passage opening.
  • a feeder insert with the aforementioned features is known from DE 20 2004 009 367 U l.
  • This prior art assumes that when using feeders on the one hand the smallest possible contact surface of the feeder insert on the surface of a model used for the formation of the mold is sought, so that after completion of the Casting process in the preparation of the feeder opening on the casting can be stopped as far as possible exact positioning of the feeder remainder and
  • the metal foot forming a feeder foot according to DE 20 2004 009 367 U l has a conically tapered surface as a whole in relation to the model surface
  • the metal foot also has the task of the
  • Model surface is displaceable.
  • Heat insulation in the region of the passage opening in the refractive core enclosing areas of the plate-shaped refractive core is not provided, so that an undesirable heat flow can take place here.
  • Metallfußes a cooling of this flowing during the casting hot metal is at least limited.
  • the invention provides for the metal base to be surrounded on its inside, which is in contact with the hot metal flowing through the metal base during the casting process, and / or on its outside, which is molded in the casting mold of molding sand, with an outer side
  • the invention has the advantage that the heat dissipation in the region of the metal base due to the invention provided isolation of the metallic metal foot is prevented or at least reduced, so that the flow path for the liquid metal by the metal base during the casting process over a longer period unimpaired or remains open.
  • the insulation is applied either on the inside of the molding or on the outside of the molding or on both sides of the molding, in particular, the two-sided insulation of the molding brings the greatest insulation effect.
  • the insulation consists of a layer applied to the surface of the metal base and consisting of a refractory and / or insulating material.
  • the material used may be powdery or al s fiber present.
  • the insulating material to the metal lffuß a bond or other mechanical connection to
  • the insulation consists of a dissolving under heat material, the actual
  • Isolati ons Fisch then used after the volatilization of the material under the action of heat by the cavity created thereby forms the insulation and prevents heat transfer.
  • the surface of the metal base is completely provided with the insulation or even only partially with the insulation.
  • the outside of the ' metal foot is a so-assembled and thereby a space for the upcoming air layer forming therein second molded part is arranged.
  • the standing between the two components air layer ensures the interruption of heat transfer and thus for the desired isolation, which hereby still the further advantage of improved stability of the existing two-component total
  • Fig. 1 a feeder insert with an insulated on both sides
  • Fig. 2 is a joined together, forming an air gap
  • feeder insert 1 0 has a feeder body 1 1, which comprises an inner cavity 12 as a so-called feeder volume enclosing wall portion 13 and an upper lid 14.
  • the feeder body 1 1 has an outer surface 16 and an inner surface 1 5 of the wall portion 1 3 enclosing the inner cavity 12 and a bottom surface 17, in which a feeder opening 18 is formed.
  • a Feiserfuß forming metal base 20 which has a hat-shaped in the illustrated embodiment.
  • this metal foot may also have any other desired shape, for example as in the ones already mentioned Publications described.
  • the hat-shaped metal base 20 is preferably glued with a circumferential collar 21 with the bottom surface 1 7 of the feeder body 1 1 and projects outwardly with a ring 22, wherein the free ends of the ring 22 form or enclose a passage opening 23, in an alignment arranged with the feeder opening 1 8 of the feeder body 1 1 i st, so that when connected to a mold
  • Feeder insert which can emerge from the mold cavity of the mold rising hot and liquid metal via the passage opening 23 and the feeder opening 1 8 in the inner cavity 12 al s Spei servolumen.
  • a layer 25 of a refractory and / or insulating material is applied to the inner surface and the outer surface.
  • This material may be present in powder form or as a fiber and it may preferably adhere to the surface of the metal base 20 by adhesion or other mechanical connection. So far with a two-sided
  • FIG. 2 An alternative exemplary embodiment for the insulation of the metal leg 20 is shown in FIG. 2.
  • a further shaped part 30 is arranged on the outside of the metal base 20, which is in contact with the metal base 20
  • the further, externally arranged molded part 30 likewise has a circumferential collar 3 1, which is aligned parallel to the circumferential collar 21 of the metal base 20 in its outer end region, so that metal base 20 and molded part 30 can be fastened together are.
  • the outer molding 30 also projects outwardly with a collar 32, which in its course is spaced from the collar 22 of the metal base 20 such that the desired
  • Interspace 33 forms.
  • the ring 32 of the outer molding 30 runs in its end with the rim 22 of the metal base 20 together.

Landscapes

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

Abstract

L'invention concerne un manchon de masselotte (10), destiné à être utilisé dans un moule de coulée de métaux, constitué d'un corps de masselotte (11) en matériau exothermique et/ou isolant qui comporte une cavité intérieure (12) correspondant au volume de masselotte et qui possède un orifice d'alimentation (18) servant à relier la cavité (12) à la cavité du moule de coulée. Sur sa surface de fond (17) orientée vers la cavité du moule, le manchon comporte un orifice de passage (23) en métal et un pied métallique (20) qui affleure l'orifice d'alimentation (18) du corps de masselotte (11). L'invention est caractérisée en ce que le pied métallique (20) est doté d'une isolation (25, 30) qui réduit la chaleur transmise par le métal chaud qui s'écoule dans la cavité (12) du corps de masselotte (11) en traversant le pied métallique (20) lors de l'opération de coulée.
PCT/EP2014/063739 2013-06-27 2014-06-27 Manchon de masselotte à pied métallique isolé WO2014207221A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13174028.4 2013-06-27
EP13174028.4A EP2818262A1 (fr) 2013-06-27 2013-06-27 Insert d'alimenteur avec pied d'alimenteur isolé

Publications (1)

Publication Number Publication Date
WO2014207221A1 true WO2014207221A1 (fr) 2014-12-31

Family

ID=48699614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/063739 WO2014207221A1 (fr) 2013-06-27 2014-06-27 Manchon de masselotte à pied métallique isolé

Country Status (2)

Country Link
EP (1) EP2818262A1 (fr)
WO (1) WO2014207221A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105618675A (zh) * 2015-12-30 2016-06-01 山东汇金股份有限公司 随形覆砂冷铁的铸造方法
CN114769511A (zh) * 2022-04-13 2022-07-22 山东燕山精密机械有限公司 一种砂型冒口座及其应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985126A (zh) * 2015-08-02 2015-10-21 邓卓伟 一种铸铁磨球的铸造工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525637A1 (de) * 1985-07-18 1987-01-22 Gerhard Dipl Ing Vitt Brechkern fuer speiser
DE19642838A1 (de) * 1996-10-17 1997-07-31 Daimler Benz Ag Speiser für ein metallisches Gußwerkstück
DE20112425U1 (de) * 2001-07-27 2001-10-18 GTP Schäfer Gießtechnische Produkte GmbH, 41515 Grevenbroich Speisereinsatz mit metallischem Speiserfuß
WO2014083155A1 (fr) * 2012-11-29 2014-06-05 Gtp Schäfer Giesstechnische Produkte Gmbh Procédé de fabrication d'une masselotte comportant un corps de masselotte exothermique ainsi qu'une coque extérieure isolante

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0325134D0 (en) 2003-10-28 2003-12-03 Foseco Int Improved feeder element for metal casting
ATE435082T1 (de) 2004-03-31 2009-07-15 Luengen Gmbh As Speiser mit verformbarer tülle
DE202004009367U1 (de) 2004-06-15 2004-08-19 GTP Schäfer Gießtechnische Produkte GmbH Speiser mit verformbaren Metallfuß
DE102005008324A1 (de) 2005-02-23 2006-08-24 AS Lüngen GmbH & Co. KG Speiser mit beweglicher Tülle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525637A1 (de) * 1985-07-18 1987-01-22 Gerhard Dipl Ing Vitt Brechkern fuer speiser
DE19642838A1 (de) * 1996-10-17 1997-07-31 Daimler Benz Ag Speiser für ein metallisches Gußwerkstück
DE20112425U1 (de) * 2001-07-27 2001-10-18 GTP Schäfer Gießtechnische Produkte GmbH, 41515 Grevenbroich Speisereinsatz mit metallischem Speiserfuß
WO2014083155A1 (fr) * 2012-11-29 2014-06-05 Gtp Schäfer Giesstechnische Produkte Gmbh Procédé de fabrication d'une masselotte comportant un corps de masselotte exothermique ainsi qu'une coque extérieure isolante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105618675A (zh) * 2015-12-30 2016-06-01 山东汇金股份有限公司 随形覆砂冷铁的铸造方法
CN105618675B (zh) * 2015-12-30 2019-03-15 山东汇金股份有限公司 随形覆砂冷铁的铸造方法
CN114769511A (zh) * 2022-04-13 2022-07-22 山东燕山精密机械有限公司 一种砂型冒口座及其应用

Also Published As

Publication number Publication date
EP2818262A1 (fr) 2014-12-31

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