• 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 process provides that a stream of liquid metal in the shape of a U is formed, that one of the branches of the stream is subjected to the action of rotary electromagnetic fields, and to cooling of its outer surface while ensuring that the metal contained in the other branch of the stream remains liquid, that a solidified metal is continuously extracted from the cold branch and that the hot branch is supplied with a corresponding quantity of liquid metal, and that the entire stream is subjected to a vertical oscillating movement. At the level where solidification begins, the metal is subjected to the action of a primary electromagnetic field and a deep meniscus is created at the level of the liquid metal by providing at this point a secondary electromagnetic field. The apparatus consists of the conduit of refractory material, one of the branches comprising a water-cooled mould (10) provided with a primary inductor (20) of a frequency below 15 Hz, above which is situated a secondary inductor (30) of a frequency of 50 Hz. The said branch additionally comprises a set of withdrawal or guiding rollers (3) and a fluid jet spraying system (40). <IMAGE>
    公开号:SU1087056A3
    申请号:SU813342892
    申请日:1981-10-16
    公开日:1984-04-15
    发明作者:Метц Поль；Каель Норберт
    申请人:Арбед С.А. (Фирма)；
    IPC主号:
    专利说明:

    2. The method of POL. 1, characterized in that the primary field is a field with a frequency of 5-15 Hz.
    3. Method POP1, characterized in that the liquid metal
    in the siphon channel is heated
    4. Method according to paragraphs. 1 and 2, in which the secondary field is a 50 Hz field.
    5. A device for the continuous manufacture of metal hollow billets, mainly tubular, containing a metal reservoir, a siphon channel, a water-cooled mold with the first electro-magnetic coil placed around it, a secondary cooling system and an ingot extraction mechanism, characterized in that equipped with a table and a second electromagnetic coil installed above the mold, and on the table there is a siphon channel with a crystallizer with the possibility of vertical kolebatelnogo- of motion.
    6. The device according to claim 1, characterized in that it is provided with a lubricating ring mounted on the crystallizer.
    This invention relates to metallurgy, more specifically to continuous casting of tubular blanks.
    A known method for producing a preform consists in that pressure is created in an airtight container with a liquid metal, and the metal enters the mold, where it solidifies and the continuous elongation of the resulting hollow preform. In this case, a rotational movement in the zone of the onset of crystallization lj is imparted to the flow of liquid metal. A device for continuous casting of tube blanks is known, comprising a metal reservoir, a siphon channel for feeding liquid metal, an electromagnetic coil, a water-cooled crystallizer, and a mechanism for drawing the blank 2.
    The disadvantage of the known method and device for continuous casting of billet is the impossibility of ensuring a constant level of metal in the crystallization zone, which leads to the thinning of the billet or its thickness variation and, consequently, to a deterioration in the quality of the obtained billet.
    The purpose of the invention is to improve the quality of the workpiece.
    This goal is achieved by the fact that, according to the method of non-continuous production of blanks, mainly tubular ones, including feeding the liquid metal into the mold, exposing it first to crystallization with a rotating magnetic field, re-cooling and continuous stretching of the resulting billet with a constant force, the liquid phase of the billet is subjected to secondary impact electromagnetic field in the area of the metal meniscus, and the siphon channel system and the mold - oscillation.
    In addition, the primary field is a field with a frequency of 5-15 Hz.
    The liquid metal in the siphon channel is heated.
    The secondary field is a 50 Hz field.
    A device for continuous manufacture of metal hollow billets, mainly tubular, containing a metal reservoir, a siphon channel, a water-cooled mold with a first electromagnetic coil placed around it, a secondary cooling system and a drawing mechanism, is equipped with a table and a second electromagnetic coil mounted above the crystallizer, and there is a siphon on the table a channel with a mold with the possibility of oscillatory motion. In addition, the device is equipped with a lubricant ring mounted on the mold. The drawing shows the proposed my device. The device contains a siphon channel 1, a device for heating the metal 2, a water-cooled mold 3, an electromagnetic coil 4, a lubricant supply ring 5, guide and draw rollers b, a secondary cooling system 7, a second electromagnetic coil 8, an oscillating table 9 The device works as follows. Liquid metal from the casting (not shown) is fed to the Yiphon channel 1, where it is subjected to double heating by devices 2. In the area of the crystallizer 3, it is given a rotational movement with 564 assistance from the electromagnetic coil 4, where the partial solidification of the workpiece occurs simultaneously. The preform with the liquid core is then pulled out by means of the device 6 and enters the zone of the second electromagnetic coil 8, where the liquid core is given a second rotational motion with the formation of a deep meniscus at a level corresponding to the level of the metal in the siphon channel, while all the units of the installation perform an oscillatory motion . Improving the quality of the cast billet is due to the creation of a deep meniscus, with the help of which it is possible to control the mass of the wall of the cast billet, as well as the message of the oscillatory movement of the system, resulting in healing of microcracks (crust breaks).
    权利要求:
    Claims (6)
    [1]
    AND DEVICE FOR ITS IMPLEMENTATION. 1. A method for the continuous production of preforms, mainly tube blanks, comprising supplying liquid metal to the mold, exposing it to crystallization at first with a rotational magnetic field, secondary cooling and continuous drawing of the resulting preform with constant force, characterized in that, with the aim of higher (54) CONTINUOUS MANUFACTURE OF METAL HOLLOW-UP WORKS, the quality of the workpiece, its phase is subjected to secondary radiation by the electromagnetic field of the meniscus of the metal, and the system channel and crystallization.
    fluid exposure siphon-oscillation
    I AM
    [2]
    2. The method of pop. 1, characterized in that the primary field is a field with a frequency of 5-15 Hz.
    [3]
    3. The method of pop. 1, characterized in that the liquid metal in the siphon channel is subjected to heating.
    [4]
    4. The method according to PP. 1 and 2, characterized in that the secondary field is a field with a frequency of 50 Hz.
    [5]
    5. A device for the continuous manufacture of metal hollow billets, mainly tubular ones, containing a metal receiver, a siphon channel, a water-cooled crystalline mash with a first electromagnetic coil placed around it, a secondary cooling system and an ingot pulling mechanism, characterized in that, in order to improve the quality of the billets, it is provided a table and a second electromagnetic coil mounted above the mold, and on the table there is a siphon channel with a mold with the possibility of vertical oscillatory motion.
    [6]
    6. The device according to claim 1, characterized in that it is equipped with a lubricating ring mounted on the mold.
    类似技术:
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    RU2090301C1|1997-09-20|Method and apparatus for continuous horizontal casting of hollow billets
    SU1049172A1|1983-10-23|Method and apparatus for continuous horizontal casting of hollow ingots
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    同族专利:
    公开号 | 公开日
    EP0050581A1|1982-04-28|
    JPS57127550A|1982-08-07|
    AU7657881A|1982-04-29|
    LU82874A1|1982-05-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2352612B1|1976-05-26|1980-11-14|Pont A Mousson|PROCESS AND INSTALLATION FOR CONTINUOUS CASTING BY CENTRIFUGATION OF TUBULAR CAST IRON PRODUCTS IN PARTICULAR|
    FR2414969B1|1978-01-23|1982-02-19|Creusot Loire|
    FR2419781B1|1978-03-17|1983-02-04|Perie Rene|
    LU79444A1|1978-04-14|1979-11-07|Arbed|PROCESS AND INSTALLATION FOR THE MANUFACTURING OF HOLLOW DRAWINGS|US4414285A|1982-09-30|1983-11-08|General Electric Company|Continuous metal casting method, apparatus and product|
    USH135H|1984-06-19|1986-09-02|Electromagnetic levitation casting apparatus having improved levitation coil assembly|
    ZA852590B|1984-07-02|1986-02-26|Gen Electric|Continuous metal tube casting method,apparatus and product|
    US4865116A|1984-07-02|1989-09-12|General Electric Company|Continuous metal tube casting method and apparatus|
    FR2574328B1|1984-12-07|1987-01-09|Pont A Mousson|ROTARY LIQUID CAST SUPPLY DEVICE FOR A VERTICAL CONTINUOUS CASTING INSTALLATION OF A SPEROIDAL GRAPHITE CAST IRON PIPE|
    LU87074A1|1987-12-15|1989-07-07|Centrem Sa|METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF METAL PRODUCTS|
    DE4410511A1|1994-03-28|1995-10-05|Didier Werke Ag|Method and device for pouring melts close to final dimensions|
    CN103706773A|2013-12-18|2014-04-09|陕西同心连铸管业科技有限公司|Hollow cast iron tubular product and vertical continuous casting method and special equipment thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    LU82874A|LU82874A1|1980-10-20|1980-10-20|PROCESS AND PLANT FOR THE CONTINUOUS MANUFACTURE OF HOLLOW METAL BLANKS|
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