• 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:
    The invention relates to the field of metallurgy, in particular to the construction of a casting channel for the production of a metal alloy from a smelter from a melting furnace. The purpose of the invention is to reduce the solidification of the metal in the channel. To achieve this goal, the casting channel 10 with a lined coupling I6 and an induction coil 17 is provided with a graphite coupling 20 located coaxially with a channel 13 made of adjacent tubular segments and a secondary circuit in the induction system for heating the casting channel 10, 2 Il. § O) co oo co co cm
    公开号:SU1373331A3
    申请号:SU833640699
    申请日:1983-09-12
    公开日:1988-02-07
    发明作者:Памар Жоэль
    申请人:Понт-А-Муссон С.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to metallurgy and, in particular, to designs of a casting channel for discharging a metal alloy from a rocking smelting furnace.
    The purpose of the invention is to reduce the solidification of the metal in the channel.
    Fig. 1 shows a rocking electric furnace equipped with a casting channel, a partial section; Fig. 2 shows a graphite-muff to final shape, section.
    The electric melting furnace I is rotatable or rotated with the aid of the cradle 2 in the form of an arc of a circle supported on rollers 3, which in turn rest on the base of the base 4. The reflex type furnace 1 has a pipe 5 for supplying an inert gas, arch 6, reflecting heat, refractory lining 7 and capacity (chamber) 8, which passes into the outlet for liquid metal through channel 9, Channel 9 is connected to the external casting channel 10 by a metal caisson fixed at one end by means of a flange 1I, proper on furnace 1 and supported from the other end by a vertical stop,. if necessary, adjustable in height with, for example, a screw-nut and an adjustment knob (not shown). The casting channel 10 has a refractory lining 12, for example, a silicon-aluminum gasket in which a cylindrical casting pipe 13 of a closed cross section is located, connected to the channel 9.
    The conduit 13 has a horizontal portion, the general direction of which deviates to both sides from the horizontal during the swing of the furnace 1, and an upward curved portion 14 that rises upward and exits to the upper surface of the casting channel 10 with an outlet 15. Over the outlet 15, when the furnace 1 is inclined to the casting position, a mold is placed which is pressed against the outlet 15 by the pressure of a plate, such as a jack.
    Through the pipe 5 in the chamber 8 of the furnace 1, an inert gas (argon and nitrogen) is pressurized in order to ensure the movement of the liquid metallic alloy to the outlet
    0
    five
    by adjusting the pressure without the risk of oxidizing the liquid metal alloy upon contact with this gas.
    Foundry channel 10 has a lined sleeve 16, which is heated. For this reason, the inductor 17 in the form of a copper coil or metal solenoid is recessed into the refractory lining 12, following the curved contour of the pipeline 13 along almost the entire length of the pipeline and occupying a significant circular space around it, and the turns of the inductor 17 have a diameter much larger than the external diameter of the pipeline 13. The coils of the inductor 17 are cooled from the inside by a stream of water, which completely eliminates the problem of expansion, i.e. placed and the inductor inside the refractory lining 12. The ends of the spiral of the inductor 17 are connected to two terminals 18 of the generator 19 of electric current.
    In order to heat the pipeline 13 even in the absence of liquid metal in it around the bed of the casting pipeline 13, i.e. around the lined coupling 16, a graphite coupling 20 is provided coaxially with conduit 0 13, and this coupling 20, the protrusion as a conductive body, constitutes a secondary circuit in the induction system, where the primary winding is coil 17. 5, the phyto coupling 20 is positioned or embedded at large overall tolerances in the refractory lining 12 near the inner wall, forming the bed for the expiration of the liquid metal alloy, but is not.
    The conductive graphite sleeve 20 is preferably made of a knee shape from a straight billet 21 as follows.
    The straight tubular member 21 is cut from one end along planes 22 inclined with respect to the axis of the tubular member 21, the inclinations are pairwise symmetrical and alternating in opposite directions to tubular segments 23, the number of which is six. The diametrically opposed segments of the segments 55 thus obliquely limited are alternately short and long. Each segment 23 rotates successively by 180 ° with respect to the preceding one along inclined separation planes 22 and around
    five
    In particular, at first segment 23, adjacent to the straight tubular element 21, and continuing this rotation with subsequent segments, get a tubular wheel, where the shorter forming tube segments 23 are located on the concave side, and the diametrically opposed ones - with convex.
    To terminate the conduit 13 in the straight and curved parts and to protect the conductive graphite sleeve 20 from direct contact with the liquid metal alloy, in particular, at the junction between the segments 23, a continuous and smooth curved track is applied as the inner shell of the conductive sleeve 20. a coupling 16 made of a refractory material that covers the gaps between the segments 23 on the side opposite to the contact of the coupling 20 with the refractory lining 12. Thus, the coupling 16 is the final finish of the pipe wire 3, although the lining 12 and forms an internal cavity, made with large overall tolerances, i.e. Clutch 16 is a bed of outflow of a liquid metal alloy with which it should be in direct contact.
    The proposed casting channel works as follows.
    The pipeline 13 is filled with melt, it is preheated by induction of a lined coupling 16, while the walls of the pipeline 13 are heated by means of a conductive graphite coupling 20.
    The electric current supplied by the generator 19 intersects the primary coil 17, which induces a secondary heating current in the conductive graphite sleeve 20. The latter, in turn, heats the lined sleeve 16 in contact with it.
    73331
    When the smelting of the metal charge in the furnace is completed, the furnace I is tilted with the casting process until the casting channel 5 is abutted into a vertical
    emphasis Liquid metal flows into the preheated conduit 13, not revenue until the hole 15, on which the mold is set, because
    10, the pressure of the inert gas above the liquid metal charge in the furnace 1 is kept low, adjusted so that the liquid metal is below the opening 15. 15 The emitter 17, which is supplied with electric current from the generator 19, acts on the liquid metal, which when passing through its secondary induced current is heated and its heating temperature is maintained significantly higher, then the pressure of the inert gas in the furnace 1 is increased so that the liquid metal rises above the hole 15 and fills
    25 form.
    Thus, the liquid metal or alloy that is in or through the conduit 13 remains heated under almost any conditions to
    30 of the same high temperature as inside the oven 1.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    35 Casting channel of a rocking melting furnace for feeding metal into a mold consisting of a pipe with a horizontal section and an ascending curved part having a refractory coating
    40 and the induction coil, the coils of which are located in a refractory coating, characterized in that, in order to reduce the solidification of the metal in the channel, it is provided
    45 with a graphite sleeve, made in the form of adjacent tubular segments and located around a pipe.
    232323232323 21
    FIG. g
    类似技术:
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    同族专利:
    公开号 | 公开日
    DK162326B|1991-10-14|
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    NO160058B|1988-11-28|
    NO160058C|1989-03-08|
    EP0103220A1|1984-03-21|
    IT8353700V0|1983-09-09|
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    DK162326C|1992-03-09|
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    IT8367935D0|1983-09-09|
    ES8404217A1|1984-05-16|
    FI73154C|1987-09-10|
    FI73154B|1987-05-29|
    FR2532866A1|1984-03-16|
    IT1168830B|1987-05-20|
    DE3363074D1|1986-05-22|
    UA6008A1|1994-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1068432B|1959-11-05|
    US2882570A|1956-05-22|1959-04-21|Joseph B Brennan|Continuous vacuum casting|
    US3435992A|1966-03-11|1969-04-01|Tisdale Co Inc|Pouring nozzle for continuous casting liquid metal or ordinary steel|
    US3604598A|1969-07-09|1971-09-14|United States Steel Corp|Outlet passage construction for teeming vessels|
    US3623541A|1969-10-29|1971-11-30|William L Schmitz|Metal casting apparatus|
    JPS4921331A|1972-06-17|1974-02-25|
    JPS5252832A|1975-10-27|1977-04-28|Mitsubishi Heavy Ind Ltd|Holding device for molten metal in ladle|
    DE2818550C2|1977-04-30|1990-03-29|Sumitomo Electric Industries, Ltd., Osaka|Apparatus for drawing optical fibers|
    AU502023B1|1977-11-08|1979-07-12|Mitsubishi Jidosha Kogyo Kabushiki Kaisha|Low pressure casting|
    US4174462A|1978-03-30|1979-11-13|Pearce Michael L|Induction furnaces for high temperature continuous melting applications|
    DE3025680A1|1980-07-07|1982-02-04|Siemens AG, 1000 Berlin und 8000 München|High-temp. furnace heating element - is graphite cylinder heated by high-frequency induction and platinum or iridium coated|
    GB2082879A|1980-08-20|1982-03-10|Plessey Co Ltd|Improvements in or relating to furnaces for producing semiconductor materials|
    JPS5775277A|1980-10-30|1982-05-11|Toshiba Mach Co Ltd|Casting equipment|US4795139A|1987-07-13|1989-01-03|Intersteel Technology, Inc.|Apparatus for tapping slag-free steel from a continuous melting furnace|
    DE3842690C2|1988-12-19|1998-04-30|Didier Werke Ag|Refractory connection and induction coil therefor|
    US5022150A|1989-10-27|1991-06-11|General Electric Company|Method for producing heat transfer tube with insitu heater|
    JP2827126B2|1989-11-25|1998-11-18|住友重機械工業株式会社|Method and apparatus for continuously discharging molten metal and slag|
    US5202081A|1990-04-17|1993-04-13|Rolls-Royce Plc|Launder system for supplying molten metal and a launder nozzle|
    FR2666036B1|1990-08-27|1994-12-16|Pont A Mousson|
    FR2670697B1|1990-12-24|1993-03-12|Pont A Mousson|CHANNEL FOR THE IMPLEMENTATION OF A PRESSURE CASTING PROCESS OF A METAL ALLOY.|
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    US5339329A|1993-01-25|1994-08-16|Armco Steel Company, L.P.|Induction heated meniscus coating vessel|
    FR2701225B1|1993-02-08|1995-04-21|Seva|Method for manufacturing a liquid metal transfer heating element, heating element, its application and its use.|
    FR2720591B1|1994-02-14|1996-08-09|Seva|Medium and built for the preheating of a metal casting duct.|
    FR2727883B1|1994-12-09|1997-01-17|Seva|LIQUID METAL CASTING CONDUIT, METHOD AND DEVICE FOR HOMOGENIZING METAL|
    US5495495A|1995-05-25|1996-02-27|Saint-Gobain/Norton Industrial Ceramics Corporation|Dense lining for coreless induction furnace|
    DE19829191A1|1998-06-30|2000-01-05|Be Automation Giesereitechnik|Pressure casting unit with shorter preliminary melt runs|
    DE10059744A1|2000-12-01|2002-06-06|Km Europa Metal Ag|Process for the targeted tempering of a casting trough and casting trough for carrying out the process|
    US6555801B1|2002-01-23|2003-04-29|Melrose, Inc.|Induction heating coil, device and method of use|
    WO2004058433A2|2002-12-16|2004-07-15|Dardik Irving I|Systems and methods of electromagnetic influence on electroconducting continuum|
    EP1920074A4|2005-08-19|2009-02-25|Advanced Metals Technology Com|Induction powered ladle bottom nozzle|
    US8831545B2|2008-04-04|2014-09-09|Qualcomm Incorporated|Methods and apparatus for aggregation of guide and frequency map information for multiple frequency networks using upper-level single frequency network|
    GB2459509B|2008-04-25|2011-05-11|Goodwin Plc|An apparatus for casting and a method of casting|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8215556A|FR2532866B1|1982-09-13|1982-09-13|INDUCTION HEATED CASTING CHANNEL|
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