• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Granular material is selectively compressed in a molding box by a series of pressure surges applied over the granular material.
    公开号:SU1722216A3
    申请号:SU874203887
    申请日:1987-12-17
    公开日:1992-03-23
    发明作者:Фишер Курт；Лойтвилер Ханс
    申请人:Георг Фишер Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a foundry and relates to a method for producing a mold.
    The purpose of the invention is to increase the strength of the form, as well as to create a method that would allow to obtain a form with varying hardness and strength from the model to the harmony of the form.
    The mixture is affected by pressure pulses increasing in its gradient, the first of which is preferably 40 bar / s, and the second is more than the first one by 20 bar / s.
    The two-stage gas shock pressure impulse leads to an improved form quality. The amount of air introduced by the first shock pressure pulse passes through the volume of the molding sand and at least partially flows through the air exhaust system installed in the model plate. Through this first pressure shock pulse, the mass of the molding sand is subjected to sufficient movement to even out the possible unevenness in the model area that occurred during the filling process. Following this, the second shock pressure impulse exerts a substantially greater pressure on the mass of the molding sand. A second pressure shock pulse compresses the remaining levels of the moldable mixture.
    The application of the proposed method leads to a very special qualitative advantages when compacting forms. Due to the fact that the hardness of the height of the form has become better controlled, uniform forms of hardness of the forms can be achieved at both low and high models. The shape counter remains relatively soft, i.e. provided set 1
    | Yu
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    YU
    ABOUT
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    on for the foundry process gas permeability.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of making molds,
    including the filling of the model-mold tooling with molding sand
    the subsequent compaction with two successive pressure pulses, which means that, in order to increase the strength of the mold, the molding sand is affected by pressure pulses increasing in its gradient, the first of which is preferably 40 bar / s and the second one is more than the first one by 20 bar / s.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1722216A3|1992-03-23|Method of fabricating moulds
    USRE32622E|1988-03-15|Method for the manufacture of molds using casting sand or another mixture of raw material particles
    EP0022808A1|1981-01-28|Process for compacting a sand mould.
    RU2084308C1|1997-07-20|Process of compaction of moulding sand
    SU778908A1|1980-11-15|Casting moulds producing method
    CZ238594A3|1995-08-16|Process of compacting foundry moulding material
    SU1063530A1|1983-12-30|Method of producing mouldings and cores
    SU1488108A1|1989-06-23|Method of making moulds
    SU1533820A1|1990-01-07|Method of producing moulds and cores
    SU810360A1|1981-03-07|Method of producing casting moulds
    SU910317A1|1982-03-07|Casting mould production method
    SU1470421A1|1989-04-07|Method of making moulds by vacuum-moulding
    SU1750846A1|1992-07-30|Method of manufacture of moulds
    SU1503975A1|1989-08-30|Method of manufacturing moulds and cores from gold-hardening sands
    SU1234039A1|1986-05-30|Method of making moulds
    SU582885A1|1977-12-05|Method of making casting moulds and cores
    SU1685591A1|1991-10-23|Three-position moulding unit of casting line
    JPS6083742A|1985-05-13|Method and device for stepwise pressurization
    SU1447533A1|1988-12-30|Method of hardening a mixture of molten glass whew making moulds and cores
    GB1179118A|1970-01-28|Method and Apparatus for Preparing Foundry Moulds.
    SU609589A1|1978-06-05|Pattern-making method
    ES2024227A6|1992-02-16|Device and process for manufacturing moulds using granular material
    SU899236A1|1982-01-23|Casting moulds production method
    SU980928A1|1982-12-15|Casting mould production method
    SU425718A1|1974-04-30|MIXTURE SEALING METHOD
    同族专利:
    公开号 | 公开日
    CS914987A3|1992-02-19|
    SE468079B|1992-11-02|
    NL8703028A|1988-07-18|
    DK162821B|1991-12-16|
    JPH01127136A|1989-05-19|
    IT1223510B|1990-09-19|
    DK652087D0|1987-12-11|
    FR2608474A1|1988-06-24|
    NO875262L|1988-06-20|
    SE8705023L|1988-06-18|
    GB2198980B|1991-03-27|
    IT8723058D0|1987-12-17|
    CN1008982B|1990-08-01|
    DD275200A5|1990-01-17|
    DE3740775C2|1990-02-08|
    ES2005478A6|1989-03-01|
    BR8706871A|1988-07-26|
    JP2641876B2|1997-08-20|
    CN87108173A|1988-06-29|
    KR920008671B1|1992-10-08|
    US4828007A|1989-05-09|
    CA1306843C|1992-09-01|
    BE1001292A3|1989-09-19|
    GB2198980A|1988-06-29|
    CS276594B6|1992-07-15|
    DK652087A|1988-06-18|
    KR880007152A|1988-08-26|
    DE3740775A1|1988-07-07|
    FR2608474B1|1993-07-30|
    GB8729207D0|1988-01-27|
    AU600325B2|1990-08-09|
    ZA879468B|1988-06-13|
    AU8267687A|1988-06-23|
    CH672270A5|1989-11-15|
    SE8705023D0|1987-12-16|
    DK162821C|1992-05-18|
    YU221387A|1989-08-31|
    NO875262D0|1987-12-16|
    NO168289B|1991-10-28|
    NO168289C|1992-02-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1415661A1|1962-09-28|1968-10-10|Carborundum Co|semiconductor|
    BE634361A|1962-07-02|
    DE1961234C3|1969-12-05|1975-02-06|Kramatorskij Nautschno-Issledowatel' Skij I Projektno-Technologitscheskij Institut Maschinostrojenija, Kramatorsk |Method and device for compacting casting molding compounds|
    DE2361820C3|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|
    SU471151A1|1973-03-14|1975-05-25|Завод Втуз При Московском Автозаводе Им.И.А.Лихачева|Method of sealing molding sand|
    CH632430A5|1978-10-05|1982-10-15|Inventio Ag|METHOD AND DEVICE FOR THE PRODUCTION OF MOLDED PARTS.|
    DE2844464C2|1978-10-12|1983-03-24|Bühler, Eugen, Dipl.-Ing., 8871 Burtenbach|Method and device for compacting casting molds|
    CH637044A5|1979-02-02|1983-07-15|Fischer Ag Georg|Method for compacting sand form in a form device.|
    JPS55120450A|1979-03-08|1980-09-16|Sintokogio Ltd|Mold molding apparatus|
    JPS6111140B2|1979-04-19|1986-04-01|Shinto Ind|
    JPS55144359A|1979-04-24|1980-11-11|Sintokogio Ltd|Mold molding method|
    JPS55147462A|1979-05-08|1980-11-17|Sintokogio Ltd|Molding method of lower mold and squeeze plate device|
    GB2079654B|1980-07-09|1984-04-26|Sintokogio Ltd|Moulding method and apparatus|
    DE3238802A1|1981-12-05|1983-06-16|VEB Kombinat Gießereianlagenbau und Gußerzeugnisse - GISAG -, DDR 7031 Leipzig|Apparatus for producing sand moulds and sand cores|
    DE3149172A1|1981-12-11|1983-06-30|Georg Fischer AG, 8201 Schaffhausen|"METHOD FOR PRODUCING MOLDED BODIES USING GAS PRESSURE"|
    EP0084627B1|1981-12-28|1986-05-07|BMD Badische Maschinenfabrik Durlach GmbH|Device for compacting foundry moulding material|
    EP0100161A1|1982-07-05|1984-02-08|Agustin Arana Erana|Automatic sand box moulding machine|
    CH659012A5|1982-07-20|1986-12-31|Fischer Ag Georg|METHOD AND DEVICE FOR COMPRESSING GRAINY MOLDS.|
    CH648225A5|1982-10-01|1985-03-15|Fischer Ag Georg|METHOD AND DEVICE FOR COMPRESSING GRAINY MOLDING MATERIALS, IN PARTICULAR FOUNDRY MOLDING MATERIALS.|
    DE3238712C2|1982-10-19|1989-11-09|Heinrich Wagner Sinto Maschinenfabrik Gmbh, 5928 Bad Laasphe, De|
    SU1207622A1|1983-06-24|1986-01-30|Специальное Конструкторское Бюро Литейных Автоматических Линий|Pulsation head for compacting mould sand|
    DE3406466C2|1984-02-23|1989-02-02|Bmd Badische Maschinenfabrik Durlach Gmbh, 7500 Karlsruhe, De|
    US4598756A|1984-09-04|1986-07-08|Kabushiki Kaisha Komatsu Seisakusho|Method for making sand molds|
    DE3511283A1|1985-03-28|1986-10-09|Dietmar Prof. Dr.-Ing. 5100 Aachen Boenisch|METHOD AND DEVICE FOR COMPRESSING FOUNDRY MOLDING MATERIALS|
    DE3514349A1|1985-04-20|1986-10-23|BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe|METHOD FOR THE PRODUCTION OF CASTING MOLDS BY COMPRESSING SHOETABLE MOLDING MATERIAL|
    EP0271513A1|1986-06-13|1988-06-22|Georg Fischer Aktiengesellschaft|Process and device for compacting powdery materials|DE3836876C2|1988-10-29|1994-06-09|Badische Maschf Gmbh|Method and device for compacting foundry molding material|
    CH682547A5|1990-04-20|1993-10-15|Fischer Ag Georg|Method and apparatus for compressing granular molding materials.|
    US5202837A|1990-07-12|1993-04-13|Coe Carlos J|Material consolidation modeling and control system|
    US5136497A|1990-07-12|1992-08-04|Bdm International, Inc.|Material consolidation modeling and control system|
    CH686412A5|1992-03-10|1996-03-29|Fischer Georg Giessereianlagen|A method of compacting molding sand for molds.|
    CZ238594A3|1993-10-27|1995-08-16|Fischer Georg Giessereianlagen|Process of compacting foundry moulding material|
    US6749003B2|2000-04-13|2004-06-15|Sintokogio, Ltd.|Compressing method for casting sand and device therefor|
    CN1214880C|2000-04-21|2005-08-17|新东工业株式会社|Die molding machine and pattern carrier|
    CN104074813B|2014-07-08|2016-04-06|陈俐丹|A kind of controlling method of advanced prevention hydraulic shock power|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH5031/86A|CH672270A5|1986-12-17|1986-12-17|
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