• 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:
    Continuous vertical casting process at speeds neighbouring one meter per minute. Said process is characterized in that there are combined a vertical raising vat (1) with an electromagnetic field and in that, by height adjusting the position of the vertical raising vat and the position of the cooling system (5) with respect to the field generating device (3), the distances between certain parameters, such as the solidification front and the base plane of the vertical raising vat, are kept constant during casting.
    公开号:SU1178315A3
    申请号:SU833560644
    申请日:1983-03-04
    公开日:1985-09-07
    发明作者:Кан Ив；Гонда Ришар；Таверньер Марк
    申请人:Сосьете Де Вант Де Л,Алюминиюм Пешинэ (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to methods for high-speed vertical continuous casting of aluminum and its alloys, in particular ingots and plates with a thickness of not more than 150 mm.
    The purpose of the invention is higher speeds, pouring more than 500 mm / min.
    The drawing shows a device for vertical continuous casting of ingots and plates of aluminum and its alloys.
    The device comprises a movable extension 1 with an expanded upper part and a lower one. part of the cross section, corresponding to the section of the molded splitting, casting glass-float 2 inductor 3, the generated electromagnetic field affects the zone 4 of liquid metal below the extension, the movable cooling device 5 mounted around the extension 1 and supplying a flat stream 6 of water to the zone located below the crystallization front 7 is additional along with cooling 8 J located under the inductor and feeding a flat jet of water onto the workpiece 9. The position 10 denotes the level of the liquid metal.
    The method is carried out as follows. in a way.
    During operation of the system, the casting cup-float 2 maintains the level of 10 liquid metal constant. Having performed simultaneous vertical movement of the extension 1 and the cooling device 5, water is supplied to the workpiece in the zone located below the crystallization front at a distance of 1-6 mm from it, while maintaining the distance between the lower end of the extension and the upper crystallization front constant by moving the crystallization front to a position close to the middle of the inductor, which is most beneficial for casting,
    The accuracy of adjusting these distances is achieved by feeding flat jets of water with a thickness of 0.5-1.0 mm at an angle of 10-30 to the vertical. In order to avoid water heating, it is supplied under pressure at a speed of 1.0-5.0 m / s. To ensure complete crystallisation, the billet is additionally cooled under the inductor.
    Example 1 Using a device for vertical continuous casting containing extension 1 with a diameter of 120 mm and a height of 80 mm, a cooling device 5 supplying 3 mUh of water in the form of a flat jet 0.8 mm thick at an angle of 30 to the vertical and at a speed of 2.5 m / s, an inductor powered by a current LOB with a power of 4200A and a frequency of 2000 Hz, additional cooling B in B, supplying 6 water in the form of a flat jet 1 mm thick at an angle of 45 ° to the vertical and having a speed of 3.5 m / s, An ingot of aluminum alloy 5754 with a diameter of 120 mm was obtained. Casting speed 900 mm / min. The distance between the lower end of the extension and the upper boundary of the crystallization front | 3ation is maintained at 13 mm, and the distance between the upper boundary of the crystallization front and the level of water supply is maintained at 1 mm.
    And with the help of a device for vertical continuous casting, containing an extension 1 with an internal cross section of 100x200 mm and a height of 80 mm, the cooling device 5 supplies 4 water in the form of a flat jet 0.7 mm thick at an angle of 15 to the vertical having a speed of 2.5 m / s, an inductor powered by a voltage of 18V, a power of 6300 A and a purity of 2000 Hz, is additional cooling with 8 supplying 15 water in the form of two flat jets with a thickness of 1 mm at an angle of 45 ° to the vertical , having a speed of 3.2 m / s, obtained a plate of 100x200 mm from aluminum alloy 1050. The casting speed is 960 mm / min The distance between the bottom end of the nadg. The rates and the upper border of the crystallization front are maintained at 8 mm, and the distance between the upper border of the crystallization front and the water supply level is maintained at 2–3 mm I
    Using a vertical continuous casting device containing an extension 1 with an internal section of 100x1300 mm and a height of 80 mm, a cooling device 5 supplying 17 water in the form of a flat jet with a thickness of 7 mm at an angle of 15 to the vertical having a speed of 2.4 m / s, an inductor powered by a current of 19 V, a force of 5900A and a frequency of 2000 Hz, additional in terms of cooling, feeding. 80 water in the form of four flat jets with a thickness of 1 mm at an angle
    3II
    45 to the vertical, with a speed of 2.0 m / s, an ESD plate x X 1300 mm from aluminum 1050 is obtained. The casting speed is 780 mm / min. The distance between the lower end of the extension and the upper border of the crystallization front is maintained at 14 mm, and the distance between. the upper boundary of the front of the crystal 783154
    The level of water supply is maintained at 4 b4.
    The proposed method makes it possible to continuously cast aluminum and its 5 alloys at a speed of 500 1 1 / min into ingots and plates with a thickness of no more than 150 mm and to ensure the production of products with an improved surface quality.
    权利要求:
    Claims (5)
    [1]
    1. METHOD OF VERTICAL CONTINUOUS CASTING OF INGOTS AND PLATES OF ALUMINUM AND ITS ALLOYS mainly with a thickness of not more than 150 mm, including the supply of liquid metal through the extension, the formation of a workpiece in an electromagnetic field and its subsequent cooling: with water, characterized in that, in order to increase the casting speed more
    500 mm / min; during the casting process, the distance between the lower end of the extension and the upper boundary of the crystallization front is kept constant by vertical movement of the extension.
    [2]
    2. The method according to claim 1, characterized in that they maintain a constant distance of 1-15
    [3]
    3. The method according to claim 1, wherein the distance is that the distance between the upper boundary of the crystallization front and the water supply level is 1-6 mm.
    [4]
    4. The method according to claim 1, characterized in that the water is supplied by a plane stream with a thickness of 0.5-1.0 mm at an angle of 10 -0 0 to the vertical at a speed of 1.0-5.0 m / s .
    [5]
    5. The method of pop. 1, characterized in that the workpiece is cooled under the inductor using an additional cooling belt.
    SU w 1178315 * 1178315 2
    类似技术:
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    同族专利:
    公开号 | 公开日
    GR69780B|1982-07-07|
    ES8305608A1|1983-04-16|
    CA1178780A|1984-12-04|
    AU547447B2|1985-10-17|
    IT8222215D0|1982-07-02|
    DE3262654D1|1985-04-25|
    EP0083611B1|1985-03-20|
    FR2509207B1|1983-11-10|
    AU8681282A|1983-02-02|
    EP0083611A1|1983-07-20|
    US4523627A|1985-06-18|
    NO830653L|1983-02-24|
    ES513801A0|1983-04-16|
    IT1151818B|1986-12-24|
    GB2103972A|1983-03-02|
    GB2103972B|1985-01-09|
    RO87316A|1985-08-31|
    JPS58500939A|1983-06-09|
    RO87316B|1985-08-31|
    IN156297B|1985-06-15|
    WO1983000107A1|1983-01-20|
    FR2509207A1|1983-01-14|
    BR8207785A|1983-06-21|
    YU145382A|1986-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1491864A|1973-11-06|1977-11-16|Alcan Res & Dev|Continuous casting|
    IT1113478B|1978-02-13|1986-01-20|Olin Corp|PROCESS AND APPARATUS FOR COPPER AND COPPER ALLOYS|
    CA1123897A|1978-07-03|1982-05-18|John C. Yarwood|Electromagnetic casting method andapparatus|
    US4161978A|1978-07-19|1979-07-24|Reynolds Metals Company|Ingot casting|
    US4236570A|1979-01-08|1980-12-02|Olin Corporation|Ingot shape control by dynamic head in electromagnetic casting|FR2570304B1|1984-09-19|1986-11-14|Cegedur|METHOD FOR ADJUSTING THE LEVEL OF THE CONTACT LINE OF THE FREE METAL SURFACE WITH THE LINGOTIERE IN A VERTICAL CAST|
    US5085265A|1990-03-23|1992-02-04|Nkk Corporation|Method for continuous casting of molten steel and apparatus therefor|
    US5469911A|1994-04-12|1995-11-28|Reynolds Metals Company|Method for improving surface quality of electromagnetically cast aluminum alloys and products therefrom|
    JP3696844B2|2002-07-08|2005-09-21|九州三井アルミニウム工業株式会社|Aluminum alloy with excellent semi-melt formability|
    EP1486347A1|2003-06-12|2004-12-15|Fuji Photo Film B.V.|Aluminium alloy substrate for lithographic printing plate and method for producing the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8114037A|FR2509207B1|1981-07-09|1981-07-09|
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