EP0366902A3 - Method of and installation for compacting foundry mold material - Google Patents

Method of and installation for compacting foundry mold material Download PDF

Info

Publication number
EP0366902A3
EP0366902A3 EP19890116348 EP89116348A EP0366902A3 EP 0366902 A3 EP0366902 A3 EP 0366902A3 EP 19890116348 EP19890116348 EP 19890116348 EP 89116348 A EP89116348 A EP 89116348A EP 0366902 A3 EP0366902 A3 EP 0366902A3
Authority
EP
European Patent Office
Prior art keywords
installation
mold material
foundry mold
compacting foundry
relates
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
EP19890116348
Other languages
German (de)
French (fr)
Other versions
EP0366902B1 (en
EP0366902A2 (en
Inventor
Norbert Damm
Thomas Dr.-Ing. Parr
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.)
BMD Badische Maschinenfabrik Durlach GmbH
Original Assignee
BMD Badische Maschinenfabrik Durlach 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 BMD Badische Maschinenfabrik Durlach GmbH filed Critical BMD Badische Maschinenfabrik Durlach GmbH
Publication of EP0366902A2 publication Critical patent/EP0366902A2/en
Publication of EP0366902A3 publication Critical patent/EP0366902A3/en
Application granted granted Critical
Publication of EP0366902B1 publication Critical patent/EP0366902B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening

Abstract

Die Erfindung betrifft ein Verfahren zum Verdichten von Gießerei-Formstoff mittels eines sich schlagartig entspannenden Druckgases. Wesentlich daran ist, daß innerhalb eines einzigen Druckstoßes zunächst ein relativ niedriger und daran sich anschließend ein hoher Druckgradient erzeugt wird. Außerdem betrifft die Erfindung Vorrichtung zur Druchführung dieses Verfahrens. The invention relates to a method for compressing Foundry molding material by means of a suddenly relaxing Compressed gas. It is essential that within a single Pressure surge initially a relatively low and then followed a high pressure gradient is generated. The invention also relates to Device for carrying out this method.

EP89116348A 1988-10-29 1989-09-05 Method of and installation for compacting foundry mold material Expired - Lifetime EP0366902B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836876A DE3836876C2 (en) 1988-10-29 1988-10-29 Method and device for compacting foundry molding material
DE3836876 1988-10-29

Publications (3)

Publication Number Publication Date
EP0366902A2 EP0366902A2 (en) 1990-05-09
EP0366902A3 true EP0366902A3 (en) 1991-11-27
EP0366902B1 EP0366902B1 (en) 1994-04-13

Family

ID=6366145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116348A Expired - Lifetime EP0366902B1 (en) 1988-10-29 1989-09-05 Method of and installation for compacting foundry mold material

Country Status (4)

Country Link
US (1) US5020582A (en)
EP (1) EP0366902B1 (en)
DE (2) DE3836876C2 (en)
ES (1) ES2050744T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682547A5 (en) * 1990-04-20 1993-10-15 Fischer Ag Georg Method and apparatus for compressing granular molding materials.
CH686412A5 (en) * 1992-03-10 1996-03-29 Fischer Georg Giessereianlagen A method of compacting molding sand for molds.
CZ238594A3 (en) * 1993-10-27 1995-08-16 Fischer Georg Giessereianlagen Process of compacting foundry moulding material
DE19848048A1 (en) * 1998-10-19 2000-05-04 Josef Mertes Method and device for compressing moldings z. B. Foundry molding sand
CN104074813B (en) * 2014-07-08 2016-04-06 陈俐丹 A kind of controlling method of advanced prevention hydraulic shock power
CN114713777B (en) * 2022-04-15 2024-03-15 苏州明志科技股份有限公司 Core shooting device of ultra-large core shooter and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319496A1 (en) * 1982-06-29 1983-12-29 VEB Kombinat Gießereianlagenbau und Gußerzeugnisse - GISAG -, DDR 7031 Leipzig Device for compacting foundry mould materials by means of pressure pulses
DE3321439A1 (en) * 1982-07-20 1984-02-02 Fischer Ag Georg Process and apparatus for the compression of granular mould materials
DE3317196A1 (en) * 1983-05-11 1984-11-22 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY SAND
DE3518980A1 (en) * 1985-05-25 1986-11-27 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY MOLD BY PRESSURE GAS
DE3740775A1 (en) * 1986-12-17 1988-07-07 Fischer Ag Georg METHOD FOR COMPRESSING GRAINY MOLDS

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916976A (en) * 1971-04-05 1975-11-04 Sherwin Williams Co Process for producing foundry sand molds
DE2361820C3 (en) * 1973-01-29 1975-07-03 Eugen Dipl.-Ing. 8871 Burtenbach Buehler Method and device for the further transport of a molding strand formed from horizontally divided boxless casting molds along a casting and cooling section
JPS55147462A (en) * 1979-05-08 1980-11-17 Sintokogio Ltd Molding method of lower mold and squeeze plate device
DE2844464C2 (en) * 1978-10-12 1983-03-24 Bühler, Eugen, Dipl.-Ing., 8871 Burtenbach Method and device for compacting casting molds
DE3149172A1 (en) * 1981-12-11 1983-06-30 Georg Fischer AG, 8201 Schaffhausen "METHOD FOR PRODUCING MOLDED BODIES USING GAS PRESSURE"
EP0084627B1 (en) * 1981-12-28 1986-05-07 BMD Badische Maschinenfabrik Durlach GmbH Device for compacting foundry moulding material
DE3344520A1 (en) * 1983-12-09 1985-06-20 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY MOLD BY PRESSURE GAS
US4598756A (en) * 1984-09-04 1986-07-08 Kabushiki Kaisha Komatsu Seisakusho Method for making sand molds
DE3511283A1 (en) * 1985-03-28 1986-10-09 Dietmar Prof. Dr.-Ing. 5100 Aachen Boenisch METHOD AND DEVICE FOR COMPRESSING FOUNDRY MOLDING MATERIALS
DD260454A1 (en) * 1987-05-13 1988-09-28 Kunert Giesserei Maschbau Veb METHOD AND MOLDING MACHINE FOR PRODUCING MOLDING BY GAS PRESSURE PULSE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319496A1 (en) * 1982-06-29 1983-12-29 VEB Kombinat Gießereianlagenbau und Gußerzeugnisse - GISAG -, DDR 7031 Leipzig Device for compacting foundry mould materials by means of pressure pulses
DE3321439A1 (en) * 1982-07-20 1984-02-02 Fischer Ag Georg Process and apparatus for the compression of granular mould materials
DE3317196A1 (en) * 1983-05-11 1984-11-22 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY SAND
DE3518980A1 (en) * 1985-05-25 1986-11-27 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY MOLD BY PRESSURE GAS
DE3740775A1 (en) * 1986-12-17 1988-07-07 Fischer Ag Georg METHOD FOR COMPRESSING GRAINY MOLDS

Also Published As

Publication number Publication date
DE3836876A1 (en) 1989-04-27
EP0366902B1 (en) 1994-04-13
DE3836876C2 (en) 1994-06-09
US5020582A (en) 1991-06-04
DE58907453D1 (en) 1994-05-19
EP0366902A2 (en) 1990-05-09
ES2050744T3 (en) 1994-06-01

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