• 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:
    1498198 Metallurgical vessels UNION CARBIDE CORP 19 March 1975 [23 Dec 1974] 11345/75 Heading F4B A metallurgical vessel having a cast iron shell 31 is protect against attack by the molten metal contained in the vessel by lining the inside of the shell with self-supporting refractory plates 45, which are inert to the molten metal and arranged to be free to move relative to each other and to the shell upon thermal expansion, the molten metal being permitted to penetrate behind the lining through joints opened by the expansion to combine with the iron of the shell and form a solid refractory layer which prevents further contact between the molten metal and the cast iron shell. The molten metal may be aluminium or an alloy of it, and the refractory layer formed consists of FeAl 3 or Fe 3 SiAl 12 if the alloy or cast iron contains silicon. If the cast iron contains chromium a solid phase CrAl 7 may be formed. The refractory plates may be of graphite, or silicon carbide or some of each of these materials.
    公开号:SU791258A3
    申请号:SU752121999
    申请日:1975-04-04
    公开日:1980-12-23
    发明作者:Геза Зекели Эндрю
    申请人:Юнион Карбид Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to non-ferrous metallurgy, in particular, to devices for producing aluminum and its alloys.
    A crucible is known for producing aluminum, containing a lining made of an inert with respect to the melt material, such as graphite, inside the iron body.
    A disadvantage of the known crucible is the impossibility of eliminating the interaction of the cast iron body with molten aluminum, which leads to a decrease in the service life of the crucible and an increase in the contamination of the finished metal.
    The purpose of the invention is to increase crucible service life.
    The goal is achieved by the fact that a coating of the intermetallic compound FeAtj is made on the inner surface of the body, and the lining consists of removable plates.
    FIG. 1 shows a crucible; vertical section; in fig. 2 - FeABj coating made on the inner surface of the housing; in fig. 3 shows a crucible version, vertical section; in fig. 4 - the same in terms of.
    The crucible consists of a cast-iron cord 1, inside which is installed a wiper 2, made of a material that is inert to aluminum and its alloy, such as graphite. An intermetallic compound 3 is applied to the inner surface of the housing 1 (Fig. 2). The crucible is placed in a lined bath 4, relative to which it is installed with a gap to accommodate heaters (not shown). A crucible on top ;, covered with a lid 5, on which is mounted a rotating nozzle 6 for feeding into
    15 melt inert gas. On one of the walls of the crucible body 1, a channel 7 is made to feed the melt, and on the opposite wall, a hole 3 and a channel 9 are made
    20 products.
    The arrow shows the direction of movement of the melt in the crucible.
    The crucible works as follows.
    Channel 7 enters the crucible
    25 is a molten aluminum which is heated by 4 heaters located in the gap between the body of the bath.
    The inert gas supplied through the rotating nozzle 6 mixes
    thirty
    melt, its composition and temperature are average.
    The finished, refined aluminum through the hole 8 and the channel 9 is withdrawn from the crucible for casting.
    In the aluminum refining process, the graphite lining of the 2k cast iron body 1 expands, and due to the fact that the degree of thermal expansion of the iron is higher than that of graphite, the lining plates 2 are freely displaced relative to each other, which prevents the formation of cracks on the surface of the plates.
    The aluminum penetrating through the gaps between the liner plates 2 cannot contact with the housing 1, since the latter is protected over the entire surface by a layer of intermetallic compound REHE, whose composition corresponds to the state of aluminum penetration by aluminum, i.e. corresponds to the state of equilibrium between aluminum and iron.
    FIG. 3 and 4 one of possible options of installation of crucible is shown.
    As in the above embodiment, the crucible comprises body 1, lining 2, intermetallic layer 3, cover 5 and nozzles 6. However, the crucible is divided by a partition 10 into two halves (each with its nozzle 6).
    . Channel 7 for melt feed and channel 9 for the output of the finished product
    are located at different levels on the common wall of the housing 1, and a pipe 11 is installed to supply the melt to the channel 9.
    The inner lining is 2 crucibles, and J also the partition wall 10 can also be made of silicon carbide, which is also melt-inert and is a good heat insulator.
    Intermetallic compound 0 - acts as a buffer between
    the body of the crucible and the melt penetrating through the slots of the plates of the lining, and serves as a reliable barrier to the highly reactive melt, which eliminates contamination of the resulting product and increases the resistance of the crucibles.
    权利要求:
    Claims (1)
    [1]
    1. US Patent No. 3743263, cl. 266 34A, published. 1973.
    1
    类似技术:
    公开号 | 公开日 | 专利标题
    US4040610A|1977-08-09|Apparatus for refining molten metal
    EP0017150B1|1983-01-26|Apparatus for refining molten aluminium
    SU791258A3|1980-12-23|Crucible for aluminium production
    RU99103022A|2001-04-27|RAW MATERIAL LATER
    US4220843A|1980-09-02|Process for melting material
    CA2266340A1|1999-01-28|Method for the directional solidification of molten metal and casting device for carrying out said method
    US4021026A|1977-05-03|Protection for externally heated cast iron vessel used to contain a reactive molten metal
    US4007771A|1977-02-15|Process for the production of aluminum
    US3299481A|1967-01-24|Continuous casting of metal melts
    KR100333760B1|2002-04-25|Refractory wall metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied
    US4413816A|1983-11-08|Gas-blast pipe for feeding reaction agents into metallurgical melts
    US3975575A|1976-08-17|Rotatable furnace pot for smelting furnaces
    US4217479A|1980-08-12|High temperature reactor
    US2339337A|1944-01-18|Furnace launder construction
    US4079920A|1978-03-21|Metal-melting furnace
    US3980742A|1976-09-14|Protection for externally heated cast iron vessel used to contain a reactive molten metal
    US4561639A|1985-12-31|Cooling plate for metallurgical furnaces
    US2958913A|1960-11-08|Production of large masses of steel suitable for the production of forgings, and apparatus therefor
    US4611331A|1986-09-09|Glass melting furnace
    RU1770045C|1992-10-23|Equipment for band production, made of modifying alloys
    US2158625A|1939-05-16|Copper refining apparatus
    US3554517A|1971-01-12|Shaft furnace shell cooling system
    JPS57188632A|1982-11-19|Manufacture of metal ti
    SU503108A1|1976-02-15|Device for remelting lightweight metal waste
    US3595548A|1971-07-27|Metallurgical refining vessel
    同族专利:
    公开号 | 公开日
    CH588320A5|1977-05-31|
    FR2296155A1|1976-07-23|
    DE2512128A1|1976-07-01|
    GB1498198A|1978-01-18|
    AT345564B|1978-09-25|
    SE417751B|1981-04-06|
    ES442752A1|1977-04-01|
    IN141367B|1977-02-19|
    YU325775A|1982-05-31|
    FR2296155B1|1978-10-06|
    IT1032436B|1979-05-30|
    JPS5510652B2|1980-03-18|
    NO142764B|1980-06-30|
    SE7503062L|1976-06-24|
    AU7928275A|1976-09-23|
    CS212745B2|1982-03-26|
    DE2512128B2|1976-12-09|
    ATA224175A|1978-01-15|
    NO142764C|1980-10-08|
    JPS5175609A|1976-06-30|
    BR7501881A|1976-07-06|
    NO750913L|1976-06-24|
    CA1033573A|1978-06-27|
    ES435917A1|1976-12-16|
    YU39539B|1984-12-31|
    RO68519A|1981-06-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR575265A|1923-02-05|1924-07-26|Crucible for thermite applications|
    DE740349C|1938-02-26|1943-10-19|Siemens Ag|Crucible for melting aluminum and its alloys|
    FR852500A|1938-04-04|1940-02-02|Austin Motor Co Ltd|Improvements in the melting of aluminum or aluminum alloys and other easily fusible metals and alloys|US4040610A|1976-08-16|1977-08-09|Union Carbide Corporation|Apparatus for refining molten metal|
    US4556098A|1978-08-18|1985-12-03|Laboratoire Suisse De Recherches Horlogeres|Hot chamber die casting of aluminum and its alloys|
    DE3564449D1|1984-11-29|1988-09-22|Foseco Int|Rotary device, apparatus and method for treating molten metal|
    US4941647A|1989-09-12|1990-07-17|Union Carbide Corporation|Protective lining for aluminum refining vessel|
    BRMU8402794U|2004-08-27|2006-04-25|Marcio Moraes De Castro|Configuration applied to device for injection of gas and / or gas and powders into liquid metals by rotary refractory lance|
    JP6083521B2|2013-04-16|2017-02-22|国立大学法人富山大学|Method for producing Al-Li alloy|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/536,954|US3980742A|1973-01-15|1974-12-23|Protection for externally heated cast iron vessel used to contain a reactive molten metal|
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