• 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:
    A METHOD FOR CASTING BLACK METALS BY A VACUUM SUCTION IN A GAS-PERMEABLE SHELL FORM, which includes immersing a part of the mold with an open end into a container with molten metal, creating a vacuum to fill the working cavity of the mold and removing the mold from the melt, about 100,000 tons of molten metal and forming a vacuum to fill the working cavity of the mold and removing the mold from the melt, about 100,000 tons of molten metal and creating a vacuum to fill the working cavity of the mold and removing the mold from the melt, about 100% of the mold and about 100% of the mold. in order to increase the durability of molds from materials destructible at high temperatures, the mold is filled through a casting channel having a narrowing width of less than 1.9 cm, and the mold is removed from the melt after the solidification of the metal in the narrowing of the ly of the Nikov channel. B / /// L 4 /// 7 /////// 7 /// 777777
    公开号:SU1101174A3
    申请号:SU792824001
    申请日:1979-10-01
    公开日:1984-06-30
    发明作者:Д.Чандлей Джордж；Л.Шеклей Ричард
    申请人:Хитченер Мануфакчуринг Ко., Инк (Фирма)；
    IPC主号:
    专利说明:

    I1 The invention relates to linear production, in particular to vacuum suction casting into gas permeable shell molds. There is a method to pour vacuum suction into gas-permeable shell forms. There is a known method of pouring vacuum-suction into gas-permeable ceramic molds, including immersing a part of the mold with an open end into a container with molten ferrous metal, creating a vacuum to fill the mold with the melt, holding under vacuum, draining excess metal from the sprue channel and removing the mold from the molten metal m . The disadvantage of the method is that when using shell-like low-temperature forms, they are rapidly destroyed before the metal hardens in them. This is especially true when casting ferrous metals. The purpose of the invention is to increase the stability of bone forms from materials that are destructible at high temperatures. The goal is achieved by; According to the method of casting ferrous metals, vaKyyMHbtM by sucking into a gas-permeable shell form, including immersing a part of the mold with an open end in a container with molten metal, creating a vacuum to fill the working cavity of the mold, and removing the mold from the melt, filling the mold is done through a gating channel having a narrowing width less than 1.9 cm and the removal of the form from the melt is carried out after the solidification of the metal in the narrowing of the gating channel. The drawing shows the form immersed in the melt. 4 Form 1 is made according to the Kroning method from sand and an inorganic thermally or chemically curable plastic material or an equivalent low-temperature binder, with an insignificant percentage of about 5%. Form 1 consists of two fastened semi-shells, upper and lower, each cavity 2 of the form has a separate vertical sprue channel 3 in which a narrowing not less than 1.9 cm wide is made, and preferably not more than 1.3 cm. The shape is set in chamber 4, connected through channel 5 with a vacuum system. The method is carried out as follows. Form 1 is installed in chamber 4, the latter is connected to a vacuum system. Discharge retains its shape in the chamber and allows it to create a reduced pressure in cavity 2 of the mold due to the gas permeability of the mold. The molds with the open ends of the gating channels 5 are immersed in the molten metal. The reduced pressure in the mold causes the metal to rise through the gating channels into the mold. After the metal solidifies in the constriction of the gating channels, the mold is raised. Part of the molten metal, remaining in the gating channels below the narrowing, flows into the tank with the melt. The form of removal from the high temperature zone maintains strength, which has a positive effect on the quality of castings. The vacuum is removed and the form is removed from the chamber 4. The invention allows to obtain high-quality castings in the forms that are destructible under the influence of temperatures, which reduces the cost of the process
    权利要求:
    Claims (1)
    [1]
    METHOD FOR CASTING BLACK METALS BY VACUUM SUCTION IN A GAS-PERMEABLE CASING FORM, which involves immersing the 'part of the mold with the open end in a container with molten metal, creating a vacuum to fill the mold working cavity and removing the mold from the melt, which is why , in order to increase the resistance of molds from materials that are destroyed at high temperatures, the mold is filled through the gating channel having a narrowing of less than 1.9 cm in width, and the mold is removed from the melt after solidification of the metal in AI runner.
    Sh1y1G "YaV ns
    1101
    类似技术:
    公开号 | 公开日 | 专利标题
    US4928746A|1990-05-29|Moulds for metal casting and sleeves containing filters for use therein
    AU614404B2|1991-08-29|Countergravity casting method and apparatus
    CA1281884C|1991-03-26|Method of making metal castings
    US3628598A|1971-12-21|Casting molds
    US4065303A|1977-12-27|Method of producing shaped objects
    SU1101174A3|1984-06-30|Method of casting ferrous metals by vacuum suction into gas-permeable shell mold
    JPH01154846A|1989-06-16|Method for casting metal in gap part of flowable firmly set mold sand mold
    GB1191694A|1970-05-13|Improvements in or relating to the Casting of Metal Parts by the Feeding of Liquid Metal into a Mould
    JP2560356B2|1996-12-04|Vacuum suction precision casting method
    JPS62212036A|1987-09-18|Vertical casting method
    US3206811A|1965-09-21|Mold and core arrangement for casting hollow elongated bodies
    GB1598764A|1981-09-23|Method and apparatus for continuous casting of steel
    JPS62161463A|1987-07-17|Production of composite metallic material
    JPS6434571A|1989-02-06|Full mold casting method
    JPS5653862A|1981-05-13|Production of low-temperature steel casting
    SU656738A1|1979-04-15|Method of making castings
    US2196432A|1940-04-09|Device for casting ingots
    SU996089A1|1983-02-15|Method and apparatus for casting by vacuum suction into ceramic gas-permeable mould
    SU450637A1|1974-11-25|Metal rod melted
    SU1734940A1|1992-05-23|Device for production of castings by squeezing with crystallization under pressure
    RU1822374C|1993-06-15|Method of casting gas-saturated alloys under variable pressure of gas
    GB2098898A|1982-12-01|Foundry mould production
    Green1982|Superior Castings and Improved Environment From V Process|
    JPS5510312A|1980-01-24|Continuous casting method of steel
    KR840001419B1|1984-09-26|Reduce pressure casting method and moulding apparatus
    同族专利:
    公开号 | 公开日
    JPH048136B2|1992-02-14|
    JPS6035227B2|1985-08-13|
    JPS6123566A|1986-02-01|
    JPS5577968A|1980-06-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS50143726A|1974-05-09|1975-11-19|
    JPS5238924B2|1974-07-01|1977-10-01|JPS59202152A|1983-04-28|1984-11-15|Toyota Motor Corp|Suction casting method|
    US4532976A|1984-06-13|1985-08-06|Hitchiner Manufacturing Co., Inc.|Gas permeable metal casting mold having gas collection voids|
    JPH0517624Y2|1986-12-08|1993-05-12|
    JP4973483B2|2007-12-20|2012-07-11|株式会社島津製作所|Valve and liquid feeding device provided with the valve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US94762178A| true| 1978-10-02|1978-10-02|
    [返回顶部]