• 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:
    Le procédé et le dispositif suivant l'invention concernent la coulée continue de corps creux en métaux tels que l'aluminium, le cuivre, les aciers de tous types, ou autres métaux ou alliages. Le procédé consiste à introduire le métal liquide dans un espace annulaire compris entre un moule extérieur et un mandrin intérieur, le métal liquide étant soumis au voisinage du mandrin à l'action d'un champ magnétique mobile qui l'entraine vers le haut. Ce champ est, de préférence, créé par un rotor magnétique logé dans le mandrin. Dans un mode de réalisation préférentiel, ce rotor comporte une matière magnétique aimantée maintenue en place par une frette. Le procédé s'applique, en particulier, à la réalisation d'ébauches destinées à la fabrication de tubes sans soudure.
    公开号:SU1591801A3
    申请号:SU833532551
    申请日:1983-01-11
    公开日:1990-09-07
    发明作者:Rolan Ernst；Marsel Garne；Mishel Zhirutru；Andre Gesse；Rene Moro；Per Pejtaven
    申请人:Vallourec；
    IPC主号:
    专利说明:

    The invention relates to the field of metallurgy, to the manufacture of hollow products in the process of continuous casting using a magnetic field, mainly seamless pipes.
    The purpose of the invention is to improve the quality of the inner surface of the hollow billet.
    1. given a device for the production of hollow products, a vertical section; figure 2 - section aa in figure 1; on fig.Z - a fragment of the device in figure 1; figure 4 is a rotor, partial axial section, front view; figure 5 is a rotor with two spirals of magnetized magnetic material (rubber); figure 6 - the same.
    2
    (57) The invention relates to the field of metallurgy, to the manufacture of hollow articles in the process of continuous casting using a magnetic field, 'mostly seamless pipes. The goal is to improve the quality of the inner surface of the hollow billet. The liquid metal in the mold is exposed to a moving magnetic field that carries it from bottom to top, which ensures the removal of non-metallic inclusions on the surface of the liquid metal. The movable magnetic field is created by an inductor mounted in the mandrel, mainly made in the form of a rotor and placed around it in a spiral of magnetic material. 14 hp f-ly,
    6 Il.
    εν nute g , g p8
    with cobalt and rare earth magnetic alloy spirals.
    A device for continuous casting of hollow articles comprises a vertical crystallizer 1, made cylindrical and rotatably, cooled Dorn 2 mounted to a coaxial crystallizer, system
    3 for supplying liquid metal into the space between the mold 1 and the mandrel 2 (shown schematically with an arrow) and means for pulling the hollow
    blanks. The mold 1 is made I with a cooled working vertical
    4 and horizontal 5 and 6 walls. The meniscus of the liquid metal is indicated with the position 7, and the shell of the hollow billet3
    1591801
    four
    thirty
    - 8. Dorn 2 consists of the lower part, made in the form of a sleeve 9 with a narrowing downwards and of a nonmagnetic material, such as copper or copper alloy, and a head 10 located above the mold 1. Dorn 2 has the ability to rotate relative to the head, which Made with inlet 1.1 and outlet 12 channels for coolant units. In the sleeve 9 is placed an inductor 13, which is mounted with the possibility of free rotation relative to the pipe 14. The inductor 13 is rotated by a fluid, unit by means of a turbine 14, the cooling fluid from which emerges through radial holes 15, the orientation of which and pressure control of the supplied fluid (water ) provide 20 controls the speed of rotation of the inductor 13 in the range of 1000-3000 rpm
    Water simultaneously provides cooling for the sleeve 9, which is heated when exposed to a liquid melt. The rotation 25 of the mandrel 2 is provided by the node (fig.Z), consisting of a gear wheel 16 connected to a bevel gear 17 mounted on the shaft 18.
    The inductor 13 (figure 4) is a rotor consisting of a hollow cylinder 19, made of structural steel, in the sockets of which the magnetized magnetic material 20 is arranged in spirals. The spirals of the magnetic material are arranged in the form of a screw thread, and the north-south axes of the magnetic material are radial to the rotor axis, while the helix poles 21 closest to the rotor axis are south, and the helix poles 22 closest to the rotor axis are north . This design of the rotor creates a rotating magnetic field during rotation, the vertical component of which carries the liquid metal from the bottom up, and the horizontal component tends to give it rotation. The upward movement of the metal carries slag and foreign inclusions to the surface of the metal, which excludes their settling on the inner 'surface of the hollow product during solidification.
    The inductor 13 can be made in the form of a rotating cylinder 23 out of 55
    carbon steel, on the surface of which is placed in a spiral magnetized magnetic material, which is 35
    40
    45
    50
    ry fastened to the rotor by means of a bandage 24 made of a material based on natural or artificial fibers, as well as synthetic resin. The space between the spirals 25 is filled with a filler that simultaneously performs the function of a binder, which is used as a polymerized synthetic resin, reinforced with a fibrous material, which eliminates the movement of magnetic spirals relative to each other. To create a stronger magnetic field, a magnet based on an alloy of cobalt and rare earth metals, in particular samarium, can be used as a magnetized magnetic material.
    The device works as follows.
    Liquid metal is fed through the system 3 into the mold 1, which is driven into rotation at a constant speed. Dorn 2 is also driven in the same direction at the same speed. The simultaneous rotation of the mold and mandrel eliminates their local overheating. Meniscus 7 metal takes a concave shape (figure 1), which eliminates from the periphery of any non-metallic inclusions and ensures the formation of a defect-free outer surface, and mixing by rotating the metal bath refines the structure of the inner surface of the hollow product. .
    As a result, a defect-free internal surface is formed that does not require additional processing. The device, in particular, can be used for the manufacture of seamless pipes.
    权利要求:
    Claims (15)
    [1]
    Claim
    1. Device for continuous vertical casting of hollow metal billets of circular cross-section, containing a vertical crystallizer with a metal working wall cooled from the inside, a cooled mandrel mounted to a coaxial crystallizer, means for feeding liquid metal from above into the gap between the crystallizer and the mandrel and means for pulling down hollow billet about t l and- '
    five
    1591801
    6
    Partly because, in order to improve the quality of the inner surface of the hollow billet, it additionally contains a means for creating a mobile magnetic field located in the mandrel.
    [2]
    2. The device according to claim 1, characterized in that it contains means for rotation, connected directly or indirectly with the mold, and / or means for pulling the hollow billet, and / or with the mandrel.
    [3]
    3. The device according to claims 1 or 2, presumed that the means for creating a moving magnetic field is made in the form of an inductor, the excitation windings of which are connected to a source of multi-phase alternating current.
    [4]
    4. The device according to claims 1 or 2, which is characterized in that the means for creating a mobile magnetic field is made in the form of an inductor with its means of rotation relative to the mandrel, the windings of which are made
    made of magnetized magnetic material or connected to a constant current source.
    [5]
    5. The device according to claim 4, characterized in that the means for rotating the inductor relative to the mandrel is made in the form of a turbine, rotated by means of a flow of coolant.
    [6]
    6. The device according to claims 4 or 5, characterized in that the inductor is made in the form of a rotor and at least one spiral of magnetized magnetic material placed around it.
    [7]
    7. The device according to claim 6, about t l and the fact that the magnetized magnetic material is placed with the direction of the north-south axis radially with respect to the rotor axis, and the closest to the rotor axis of the helix pole are made of the same name.
    [8]
    8. The device according to claim 7, about t l and the fact that the magnetized magnetic material is placed on
    pair coaxial coils wound around the rotor in a multiple way, and the poles nearest to the rotor axis in adjacent turns of the helix follow the
    are unlikely.
    [9]
    9. The device according to PP.6-8, characterized in that the rotor contains a piece of magnetic material, made in the form of a body of revolution, around which is placed in a spiral magnetized magnetic material connected to the rotor by a bandage made of a material based on new or natural artificial fibers, while the bandage closes the magnetized magnetic material.
    [10]
    10 .. The device according to claim 9, which is based on the fact that
    20 magnetic material used
    metal: or a metal alloy, such as mild or carbon steel, of structural type.
    [11]
    11. The device according to PP.6-10, about 25 that the space between subsequent turns of the helix or spirals is filled with filler in the form of polymerized synthetic resin, reinforced
    3θ fibrous material.
    [12]
    12. The device according to claim 11, of which the fiberglass is used as the fibrous material.
    [13]
    13. The device according to claims 9-12, which is distinguished by the fact that a felt is made of nonwoven fibrous material between the bandage and the magnetized magnetic material.
    dd
    [14]
    14. The device according to PP.9-13, characterized by the fact that fiberglass or polyamide fiber is used as the material of the bandage.
    [15]
    15. The device according to claims 4-14, which is tacted by the fact that as a magnetized magnetic material is used rubber with a filler made of magnetic material or
    50 Cobalt based alloy containing at least one rare earth metal, for example samarium.
    35
    1591801.
    1
    Aa
    FIG. 2
    1591801
    4
    1591801
    Fig.5 Fig.6
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1591801A3|1990-09-07|Apparatus for continuous casting of hollow round metal billets
    CA1062053A|1979-09-11|Laying pipe
    CN104745843B|2017-04-19|Device and method for preparing and rheoforming automatic alloy rheological slurry
    US3409068A|1968-11-05|Method of continuously casting tubes using a rotating mandrel
    GB1575466A|1980-09-24|Continuous casting of metals
    US3702630A|1972-11-14|Apparatus for casting solid cylindrical metallic objects
    US4614225A|1986-09-30|Magnetic rotor for the continuous casting of hollow bodies
    US4243092A|1981-01-06|Continuous casting
    US4570698A|1986-02-18|Method of and apparatus for centrifugal casting
    US3583469A|1971-06-08|Method of continuously casting solid state cylinders
    CN105728679A|2016-07-06|Magnetic shielding type multi-mode meniscus electromagnetic stirring system and method for continuous casting of square and round billets
    GB1373404A|1974-11-13|Method and machine for continuous centrifugal casting of hollow shapes
    FR2632549A1|1989-12-15|LINGOTIERE FOR THE CONTINUOUS CASTING OF BILLETTES OR BLOOMS
    SU1695822A3|1991-11-30|Mould of continuous casting machine
    GB2103131A|1983-02-16|Magnetic stirring of molten metal in a mould, utilizing permanent magnets
    RU2455106C1|2012-07-10|Semi-continuous tube casting machine crystalliser
    US3486550A|1969-12-30|Continuous casting of tubes
    US3651859A|1972-03-28|Apparatus for centrifugal casting of tubular objects
    US4375830A|1983-03-08|Method and apparatus for supporting a steel strand produced during a continuous strand casting method
    US3835916A|1974-09-17|Apparatus for electroslag remelting to produce tubular bodies
    CN104707960B|2017-03-01|A kind of meniscus radial direction Strong shear electromagnetic agitation round billet continuous casting apparatus and method
    US3398780A|1968-08-27|Continuous casting of tubes
    EP2501507B1|2016-06-01|Continuous casting nozzle for a rod, wire or pipe in upward vertical metal casting
    CN111451465B|2021-10-08|Equipment and process for producing large-size aluminum alloy round ingot
    CN106270834A|2017-01-04|Single-axle turning formula electro-discharge device
    同族专利:
    公开号 | 公开日
    EP0083898A2|1983-07-20|
    IN158299B|1986-10-11|
    BR8300118A|1983-10-04|
    MX159339A|1989-05-17|
    FR2519567A1|1983-07-18|
    EP0083898B1|1986-07-09|
    FR2519567B1|1984-10-19|
    US4729422A|1988-03-08|
    ZA83230B|1983-10-26|
    AT20645T|1986-07-15|
    JPS58122161A|1983-07-20|
    DE3271958D1|1986-08-14|
    AR229379A1|1983-07-29|
    CA1195823A|1985-10-29|
    US4974660A|1990-12-04|
    JPS6352981B2|1988-10-20|
    EP0083898A3|1983-10-05|
    ES8400904A1|1983-11-16|
    ES518919A0|1983-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1064849A|1952-10-16|1954-05-18|Improvements to continuous casting molds for metals and in particular steel|
    FR1140200A|1955-01-15|1957-07-16|Boehler & Co Ag Geb|Process for moving molten metal in continuous casting plants|
    FR1181997A|1957-09-04|1959-06-19|Ile D Etudes De Centrifugation|Continuous demolding centrifugal casting process and equipment for implementing this process|
    FR1254431A|1960-01-09|1961-02-24|Ile D Etudes De Centrifugation|Method for the rotary casting of metals with continuous demoulding and device for carrying out this method|
    US3416591A|1963-03-27|1968-12-17|Civile Soc Civile D Etudes De|Process for effecting the continuous rotary casting of hollow steel blanks|
    FR1385730A|1964-01-02|1965-01-15|North American Aviation Inc|Electromagnetic pump|
    AT286521B|1968-05-22|1970-12-10|Mannesmann Ag|Device for internal cooling of hollow strands|
    US3844332A|1971-11-05|1974-10-29|R Bucci|Making seamless tubing by continuous process|
    FR2180494B1|1972-04-18|1977-07-15|Etudes De Centrifugation|
    US4042007A|1975-04-22|1977-08-16|Republic Steel Corporation|Continuous casting of metal using electromagnetic stirring|
    FR2358222B1|1976-07-13|1979-04-06|Siderurgie Fse Inst Rech|
    JPS5345292B2|1976-08-26|1978-12-05|
    US4106825A|1976-12-13|1978-08-15|Autoclave Engineers, Inc.|High pressure magnetic drive including magnetic thrust bearings|
    CH618363A5|1977-01-06|1980-07-31|Getselev Zinovy N|Electromagnetic mould for the continuous and semi-continuous casting of hollow strands|
    JPS5425222A|1977-07-29|1979-02-26|Fuji Kogyosho Kk|Method of making metal pipes|
    FR2415501B1|1978-01-27|1982-04-02|Pont A Mousson|
    US4296544A|1978-12-26|1981-10-27|The Garrett Corporation|Method of making rotor assembly with magnet cushions|
    JPS55106664A|1979-02-05|1980-08-15|Nippon Kokan Kk <Nkk>|Continuous casting method of steel by electromagnetic agitation|
    GB2052319A|1979-05-15|1981-01-28|Lucas Industries Ltd|A method of assembling permanent magnet rotors for electrical machines|
    FR2465535B1|1979-07-12|1983-04-15|Cem Comp Electro Mec|
    JPS5842780B2|1980-03-28|1983-09-21|Sumitomo Metal Ind|
    GB2103131B|1981-07-28|1986-03-12|Sumitomo Metal Ind|Magnetic stirring of molten metal in a mould utilizing permanent magnets|
    US4614225A|1982-12-10|1986-09-30|Vallourec|Magnetic rotor for the continuous casting of hollow bodies|SE8305084L|1983-09-21|1985-03-22|Asea Ab|SET FOR CENTRIFUGAL CASTING|
    US6037167A|1994-10-03|2000-03-14|Ericomp|Magnetic polynucleotide separation and analysis|
    US6059015A|1997-06-26|2000-05-09|General Electric Company|Method for directional solidification of a molten material and apparatus therefor|
    US6845809B1|1999-02-17|2005-01-25|Aemp Corporation|Apparatus for and method of producing on-demand semi-solid material for castings|
    US6402367B1|2000-06-01|2002-06-11|Aemp Corporation|Method and apparatus for magnetically stirring a thixotropic metal slurry|
    US6432160B1|2000-06-01|2002-08-13|Aemp Corporation|Method and apparatus for making a thixotropic metal slurry|
    US6399017B1|2000-06-01|2002-06-04|Aemp Corporation|Method and apparatus for containing and ejecting a thixotropic metal slurry|
    US6796362B2|2000-06-01|2004-09-28|Brunswick Corporation|Apparatus for producing a metallic slurry material for use in semi-solid forming of shaped parts|
    US6742567B2|2001-08-17|2004-06-01|Brunswick Corporation|Apparatus for and method of producing slurry material without stirring for application in semi-solid forming|
    LU91086B1|2004-06-25|2005-12-27|Sms Demag Ag|Continous casting mould wit oscillation device.|
    EP2411170B1|2009-03-27|2015-09-30|Titanium Metals Corporation|Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom|
    AT509495B1|2010-03-02|2012-01-15|Inteco Special Melting Technologies Gmbh|METHOD AND APPENDIX FOR PRODUCING HOLLOWING TRANSPARENCIES|
    KR101042295B1|2010-08-12|2011-06-17|동신산업|Cavity and core changing type foam-forming mold|
    RU2516414C1|2013-01-30|2014-05-20|Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" |Mandrel with variable taper of working surface for crystalliser of machine for continuous casting of hollow billets|
    RU2517094C1|2013-01-30|2014-05-27|Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" |Hollow blank continuous casting machine mould mandrel|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8200763A|FR2519567B1|1982-01-13|1982-01-13|
    [返回顶部]