• 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:
    Method for adjusting the level of the contact line of the free metal surface with the ingot mould (c) in a continuous vertical casting. The method comprises the application to the liquid in the course of its solidification of a variable periodic magnetic field of which the direction (9) is substantially parallel to the axis of the ingot mould (3) and the adaptation of the intensity of said field as a function of the desired level. It finds its application in the casting of metallurgical semi-products particularly of aluminium and alloys thereof such as lithium alloys and wherein the aim is to obtain a cortical zone of zero thickness, a fine grain without previous addition of refining agents and an absence of barbs.
    公开号:SU1473700A3
    申请号:SU864027490
    申请日:1986-05-16
    公开日:1989-04-15
    发明作者:Вив Шарль；Форест Бернар；Рике Жан-Пьер
    申请人:Сежедюр Сосьете Де Трансформасьон Де Л.Алюминиюм Пешинэ (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to metallurgy, specifically to the vertical continuous casting of billets, mainly from aluminum and its alloys, and concerns the regulation of the level of the metal in the mold.
    The goal is to improve the quality of casting; blanks by reducing the thickness of the cortical layer and refining the granular structure.
    The drawing shows a device for carrying out the proposed method (the right part of the device) and a prototype method (left part of the device), a longitudinal section.
    The device contains a container 1 for supplying liquid metal, a float 2. Level control, a mold 3 cooled with liquid 4, which, by the stack, cools the metal shell 5 in section 6 under the mold 3. A coil 7 is installed around the right half of the mold and is powered by variables voltage 8 to create a directional magnetic field 9 and lower the meniscus level from point 10 when casting according to a known method (prototype) to point 11 according to the proposed method. Point 11 is located at level 12
    th j
    W 1
     WITH
    The hardening front 13 (as a result of indirect cooling) and the hardening front 14 (as a result of direct cooling), i.e. the height of contact of the metal with the mold decreased from h to
    V
    PRI me R. An aluminum alloy type 2214 is fed to an aluminum crystallizer 3 with a diameter of 320 mm and a height of 100 mm and the billet is drawn at a speed of 60 mm / micron. The poplaloc regulates the level of the metal at half-height of the mold, and the cooling liquid is supplied to the cast shell of the workpiece at a distance of about 1 cm above the end of the mold 3. The mold is surrounded by an annular coil with an inner diameter of 372 mm, an outer diameter of 465 mm and a height of 48 mm formed by 120 turns enameled copper wire with a diameter of 3.35 mm and connected to an alternating current frequency of 50 Hz.
    The results are shown in the table.
    The table shows that with an increase in the magnetic field voltage, the thickness of the cortical layer, gradually decreasing, becomes zero 40 at 180 watts. At the same time, the grain size is reduced to 180 microns.
    The use of the invention improves the quality of cast
    0
    five
    0
    five
    0
    by reducing the thickness of the cortical layer, i.e. a layer, the composition and structure of which is different from the composition and structure of the metal of the blank, and obtaining a refined granular structure.
    Formula inventions
    权利要求:
    Claims (4)
    [1]
    1. The method of regulating the level of the meniscus of the metal in the mold during continuous vertical casting of billets mainly from aluminum and its alloys, which includes changing, (the level of the metal is
    for liquid metal by an alternating magnetic field, the vector of which is directed along the axis of the mold, which is aimed at improving the quality of the cast billets by reducing the thickness of the cortical layer and refining the granular structure, the magnetic field strength increases with decreasing and decreases with increasing mini metal in the mold from the set.
    [2]
    2. Method pop. 1, characterized in that the liquid metal is affected by a magnetic field of industrial frequency.
    [3]
    3. The method according to claim 1, about tl and h a torn, and also with the fact that the effect of a magnetic field maximum intensity is carried out at a distance of
    1/3 ... 1/2 of the height of the mold from its lower end.
    [4]
    4. Method of claim 1, characterized in that the magnetic field strength increases gradually from the minimum value at the time of the start of the casting process to the maximum value when the casting process stabilizes.
    TO
    Compiled by L. Dymshits Editor A. Makovska Tekhred L. Oliynyk Proofreader M. Vasilyeva
    Order 1731/58
    Circulation 710
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
    Subscription
    类似技术:
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    同族专利:
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    JPS6339337B2|1988-08-04|
    NO165581B|1990-11-26|
    AU4860485A|1986-04-08|
    IL76406D0|1986-01-31|
    PT81155A|1985-10-01|
    DD239546A5|1986-10-01|
    DK227986D0|1986-05-16|
    EP0195793B1|1987-10-14|
    NO165581C|1991-03-06|
    AU572700B2|1988-05-12|
    KR860002326A|1986-04-24|
    EP0195793A1|1986-10-01|
    US4807694A|1989-02-28|
    GB8522940D0|1985-10-23|
    FR2570304B1|1986-11-14|
    JPS61502108A|1986-09-25|
    DK227986A|1986-05-16|
    UA5582A1|1994-12-28|
    ES547082A0|1986-07-16|
    WO1986001756A1|1986-03-27|
    IS1336B6|1989-01-13|
    GB2164280B|1987-09-23|
    GB2164280A|1986-03-19|
    IS3042A7|1986-03-20|
    NO861808L|1986-05-06|
    CA1256669A|1989-07-04|
    GR852251B|1985-12-12|
    SG2388G|1988-06-17|
    FR2570304A1|1986-03-21|
    AT30218T|1987-10-15|
    DE3560766D1|1987-11-19|
    PT81155B|1992-05-29|
    FI862091A0|1986-05-19|
    BR8506926A|1986-12-23|
    NZ213486A|1988-04-29|
    KR900002038B1|1990-03-31|
    FI862091A|1986-05-19|
    ES8608963A1|1986-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5721408B2|1975-09-09|1982-05-07|
    NO790471L|1978-02-18|1979-08-21|British Aluminium Co Ltd|CAST METALS.|
    GB2034216B|1978-11-02|1982-09-22|Olin Corp|Mouldless casting|
    DE3009189B1|1980-03-11|1981-08-20|Mannesmann Demag Ag, 4100 Duisburg|Process for the horizontal continuous casting of liquid metals, in particular steel, and device therefor|
    FR2509207B1|1981-07-09|1983-11-10|Pechiney Aluminium|
    FR2530510B1|1982-07-23|1985-07-05|Cegedur|ELECTROMAGNETIC CASTING PROCESS FOR METALS IN WHICH AT LEAST ONE MAGNETIC FIELD DIFFERENT FROM THE CONTAINMENT FIELD|
    FR2530511B1|1982-07-23|1985-07-05|Cegedur|PROCESS FOR CASTING METALS IN WHICH MAGNETIC FIELDS ARE OPERATED|
    JP3107445B2|1992-02-24|2000-11-06|富士通株式会社|Image recording device|
    JP5232824B2|2010-03-31|2013-07-10|京セラドキュメントソリューションズ株式会社|Electrical connection mechanism and image forming apparatus having the same|FR2609656B1|1987-01-15|1989-03-24|Cegedur|METHOD OF ADJUSTING THE CONTACT LINE OF THE FREE METAL SURFACE WITH THE LINGOTIERE IN A VERTICAL CAST OF PRODUCTS OF ANY SECTION|
    US4796687A|1987-07-10|1989-01-10|Olin Corporation|Liquid/solid interface monitoring during direct chill casting|
    FR2664618B1|1990-07-10|1993-10-08|Pechiney Aluminium|PROCESS FOR THE MANUFACTURE OF CATHODES FOR CATHODE SPRAYING BASED ON VERY HIGH PURITY ALUMINUM.|
    FR2664513A1|1990-07-16|1992-01-17|Siderurgie Fse Inst Rech|METHOD AND DEVICE FOR CONTROLLING THE THIN BAND CONTINUOUS CASTING THICKNESS OF ELECTROCONDUCTIVE MATERIAL.|
    US6577118B2|2001-02-02|2003-06-10|B.D.H. Industries Inc.|System and method for measuring liquid metal levels or the like|
    US6604570B1|2002-05-10|2003-08-12|Fiber Tech Co., Ltd.|Apparatus and method for manufacturing metal filaments|
    US20090062457A1|2007-09-04|2009-03-05|Kraton Polymers U.S. Llc|Styrenic block copolymers and compositions containing the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8414740A|FR2570304B1|1984-09-19|1984-09-19|METHOD FOR ADJUSTING THE LEVEL OF THE CONTACT LINE OF THE FREE METAL SURFACE WITH THE LINGOTIERE IN A VERTICAL CAST|LV930908A| LV5598A3|1984-09-19|1993-06-30|Metals meniscus level adjustment pan for crystallizer preform continuous vertical lean process|
    LTRP1256A| LT2641B|1984-09-19|1993-09-29|THE METAL LEVEL OF THE METAL LEVEL IN THE CRYSTALIZER BY CREATING RETAINED VERTICAL BUDGETS|
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