EP0022808A1 - Procede pour rendre compact un moule en sable. - Google Patents

Procede pour rendre compact un moule en sable.

Info

Publication number
EP0022808A1
EP0022808A1 EP80900151A EP80900151A EP0022808A1 EP 0022808 A1 EP0022808 A1 EP 0022808A1 EP 80900151 A EP80900151 A EP 80900151A EP 80900151 A EP80900151 A EP 80900151A EP 0022808 A1 EP0022808 A1 EP 0022808A1
Authority
EP
European Patent Office
Prior art keywords
molding sand
molding
compacting
sand
mold
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
EP80900151A
Other languages
German (de)
English (en)
Other versions
EP0022808B1 (fr
Inventor
Lumir Zadera
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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=4200975&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0022808(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to AT80900151T priority Critical patent/ATE1221T1/de
Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of EP0022808A1 publication Critical patent/EP0022808A1/fr
Application granted granted Critical
Publication of EP0022808B1 publication Critical patent/EP0022808B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor

Definitions

  • the invention relates to a method for compacting molding sand for a casting mold, using a model plate with a model and an opposing press plate, the molding sand being poured into a mold space located between the model plate and the press plate, precompressed and mechanically recompressed.
  • the disadvantage here is that the models are subject to a relatively large amount of wear due to the abrasive effect of the molding sand particles accelerated during the injection.
  • a substantial energy requirement is necessary for the shooting, which has an adverse effect on the cost structure of the mold production affects.
  • a mold box is placed on a model plate, enclosing a model and the associated filler frame, and a metered amount of molding sand is placed in the mold space formed by the model plate, the mold box or the filler frame
  • Use of gravity, filled and then a lid that can be placed on the filling frame is connected to the filling frame or molding box.
  • An explosive pressure shock is now exerted on the sand surface in the molding space formed between the molding sand surface, the filling frame or molding box and with the lid, and the molding sand mass is thus pre-compacted.
  • the sand is mechanically compacted or compacted using the press plate.
  • a fuel brought to the detonation-like or explosive combustion is advantageously used, which can also burn in a shock-induced manner.
  • a depressurized, highly tensioned, vaporous or gaseous medium as the pressure surge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Saccharide Compounds (AREA)
  • Steroid Compounds (AREA)

Abstract

Le moule en sable est soumis a des vibrations, dans une forme, puis il est soumis a un premier compactage par une onde de pression gazeuse. Le compactage definitif est obtenu au moyen d'une presse.
EP80900151A 1979-02-02 1980-08-15 Procede pour rendre compact un moule en sable Expired EP0022808B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80900151T ATE1221T1 (de) 1979-02-02 1980-01-24 Verfahren zum verdichten von formsanden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1037/79 1979-02-02
CH103779A CH637044A5 (de) 1979-02-02 1979-02-02 Verfahren zum verdichten von formsand in einer formvorrichtung.

Publications (2)

Publication Number Publication Date
EP0022808A1 true EP0022808A1 (fr) 1981-01-28
EP0022808B1 EP0022808B1 (fr) 1982-06-23

Family

ID=4200975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900151A Expired EP0022808B1 (fr) 1979-02-02 1980-08-15 Procede pour rendre compact un moule en sable

Country Status (14)

Country Link
US (1) US4415015A (fr)
EP (1) EP0022808B1 (fr)
AU (1) AU5487180A (fr)
CA (1) CA1145112A (fr)
CH (1) CH637044A5 (fr)
DD (1) DD148734A5 (fr)
DE (1) DE3060563D1 (fr)
DK (1) DK412280A (fr)
ES (1) ES488173A1 (fr)
IT (1) IT1130875B (fr)
NO (1) NO802904L (fr)
PL (1) PL221739A1 (fr)
WO (1) WO1980001544A1 (fr)
ZA (1) ZA80311B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025993A1 (de) * 1980-07-09 1982-01-28 Sintokogio, Ltd., Nagoya, Aichi Formverfahren und vorrichtung zur druchfuehrung des verfahrens

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH650175A5 (de) * 1981-01-23 1985-07-15 Fischer Ag Georg Verfahren und einrichtung zum dosieren von brennstoffen bei der herstellung von giessereisandformen.
WO1982003348A1 (fr) * 1981-04-02 1982-10-14 Koebel Alfons Procede et dispositif de compactage pneumatique de sable de moulage
CH653579A5 (de) * 1981-07-20 1986-01-15 Fischer Ag Georg Verfahren zum verdichten von koernigen formstoffen, insbesondere giessereiformstoffen, und vorrichtung zur durchfuehrung des verfahrens.
DE3149172A1 (de) * 1981-12-11 1983-06-30 Georg Fischer AG, 8201 Schaffhausen "verfahren zur herstellung von formkoerpern mittels gasdruck"
CH672270A5 (fr) * 1986-12-17 1989-11-15 Fischer Ag Georg
DE3900324A1 (de) * 1989-01-07 1990-07-12 Dorstener Maschf Ag Verfahren und presse zum herstellen von formkernen aus formsand fuer die giessereitechnik
CH682547A5 (de) * 1990-04-20 1993-10-15 Fischer Ag Georg Verfahren und Vorrichtung zum Verdichten von körnigen Formstoffen.
CH686412A5 (de) * 1992-03-10 1996-03-29 Fischer Georg Giessereianlagen Verfahren zum Verdichten von Formsand fuer Giessformen.
CA2386369A1 (fr) * 1999-11-18 2001-05-25 Hottinger Maschinenbau Gmbh Procede de fabrication de moules

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB728015A (en) * 1952-02-25 1955-04-13 Buhrer Erwin Method for charging and jolting for the purpose of compacting granular materials in moulding flasks
US3030678A (en) * 1959-09-08 1962-04-24 Sr William J Huston Method of disintegrating a sand mold while in association with a flask and a casting
US3170202A (en) * 1962-08-22 1965-02-23 Sr William J Huston Foundry process
US3807483A (en) * 1971-01-08 1974-04-30 E Buhler Methods and apparatus for producing sand molds
DE2128371A1 (de) * 1971-06-08 1972-12-28 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zum Verdichten von körnigen Materialien durch Explosionsdruck
DE2242812B2 (de) * 1972-08-31 1977-06-23 Hüttenes-Albertus Chemische Werke GmbH, 4000 Düsseldorf Verfahren zum haerten von saeurehaertbaren formstoffgemischen
AT381877B (de) * 1978-12-15 1986-12-10 Fischer Ag Georg Verfahren und vorrichtung zum verdichten von koernigen stoffen, insbesondere giessereiformstoff

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8001544A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025993A1 (de) * 1980-07-09 1982-01-28 Sintokogio, Ltd., Nagoya, Aichi Formverfahren und vorrichtung zur druchfuehrung des verfahrens

Also Published As

Publication number Publication date
IT8019351A0 (it) 1980-01-22
CH637044A5 (de) 1983-07-15
EP0022808B1 (fr) 1982-06-23
DD148734A5 (de) 1981-06-10
ZA80311B (en) 1981-01-28
ES488173A1 (es) 1980-10-01
AU5487180A (en) 1980-08-07
US4415015A (en) 1983-11-15
NO802904L (no) 1980-10-01
CA1145112A (fr) 1983-04-26
DK412280A (da) 1980-09-30
DE3060563D1 (en) 1982-08-12
IT1130875B (it) 1986-06-18
PL221739A1 (fr) 1980-10-20
WO1980001544A1 (fr) 1980-08-07

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