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    Method and apparatus for controlling flow of molten steel in mold
    1.
    发明专利
    Method and apparatus for controlling flow of molten steel in mold 审中-公开
    用于控制模具中钢的流动的方法和装置

    公开(公告)号：JP2013136101A

    公开(公告)日：2013-07-11

    申请号：JP2013040669

    申请日：2013-03-01

    Applicant: Abb Ab ,  アーベーベー・アーベー

    Inventor： LEHMAN ANDERS ,  HACKL HELMUT ,  ERIKSSON JAN-ERIK ,  SJOEDEN OLOF

    IPC: B22D11/11 ,  B22D11/111 ,  B22D11/115

    CPC classification number: B22D11/115

    Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling a flow of molten steel in a mold by applying at least one magnetic field to the molten steel in a continuous slab casting machine.SOLUTION: This is achieved by comprising controlling a molten steel flow velocity on a molten steel bath surface, meniscus 9, to a predetermined molten steel flow velocity by applying a static magnetic field to impart a stabilizing and braking force to a discharge flow from an immersion nozzle 4 when the molten steel flow velocity on the meniscus is higher than a mold powder entrainment critical flow velocity and by controlling the molten steel flow velocity on the meniscus 9 to a range of from an inclusion adherence critical flow velocity or more to a mold powder entrainment critical flow velocity or less by applying a shifting magnetic field 7 to increase the molten steel flow when the molten steel flow velocity on the meniscus 9 is lower than the inclusion adherence critical flow velocity.

    Abstract translation: 要解决的问题：提供一种通过在连续板坯铸造机中向钢水施加至少一个磁场来控制模具中的钢水流动的方法。解决方案：这通过包括控制钢水流速 通过施加静磁场使钢液面上的液面弯液面9达到预定的钢水流速，从而当弯液面上的钢水流速较高时，从浸没喷嘴4向排出流施加稳定和制动力 比模具粉末夹带临界流速，并且通过施加移动磁场7将弯液面9上的钢水流速控制在从夹杂物粘附临界流速或更多到模具粉末夹带临界流速或更小的范围内 当弯液面9上的钢水流速低于夹杂物附着临界流速时，钢水流量增加。

    A METHOD AND DEVICE FOR CONTROLLING STIRRING IN A STRAND
    2.
    发明申请
    A METHOD AND DEVICE FOR CONTROLLING STIRRING IN A STRAND 审中-公开
    一种控制杆中搅拌的方法和装置

    公开(公告)号：WO0202831A3

    公开(公告)日：2002-06-20

    申请号：PCT/SE0101531

    申请日：2001-07-04

    Applicant: ABB AB ,  LEHMAN ANDERS ,  LARSSON PER

    Inventor： LEHMAN ANDERS ,  LARSSON PER

    IPC: B22D11/115

    CPC classification number: B22D11/115

    Abstract: A method of controlling the flow of molten metal in non-solidified portions of a strand (3) during continuous casting, and a device for application of the method. The device comprises a two-phase or plural-phase stirrer (1) arranged around a mould (6) that is open in opposite ends and that surrounds the strand (3), said stirrer (1) being arranged to generate a moving magnetic field in the melt, and at least one magnetic flow-conducting body (15) being placed between an inner periphery of said stirrer (1) and the outer periphery of the mould (6). In the case of open casting, the magnetic flow-conducting body (15) is positioned in a first position in which it displaces at least a part of the magnetic flow generated by the stirrer (1) in a direction towards the meniscus (17) of the strand (3), and, in the case of closed casting, the magnetic flow-conducting body (15) is positioned in a second position in which it displaces at least a part of the magnetic flow generated by the stirrer (1) away from the meniscus (17) of the strand (3).

    Abstract translation: 一种在连续铸造期间控制铸坯（3）的非凝固部分中的熔融金属流动的方法，以及该方法的应用装置。 该装置包括布置在模具（6）周围的两相或多相搅拌器（1），所述模具（6）在相反两端开口并且围绕所述绞合线（3），所述搅拌器（1）布置成产生移动磁场 并且在所述搅拌器（1）的内周边和所述模具（6）的外周边之间放置至少一个磁导流体（15）。 在开放式铸造的情况下，磁性导流体（15）定位在第一位置，在该第一位置中，其将由搅拌器（1）产生的磁流的至少一部分沿朝向弯月面（17）的方向移位， （3）的磁流的至少一部分，并且在封闭浇铸的情况下，磁导流体（15）定位在第二位置，在该第二位置中，其将由搅拌器（1）产生的磁流的至少一部分移位， 远离线（3）的弯月面（17）。

    4.
    发明专利
    未知

    公开(公告)号：DE69912105T2

    公开(公告)日：2004-07-08

    申请号：DE69912105

    申请日：1999-03-03

    Applicant: ABB AB VAESTERAAS

    Inventor： LEHMAN ANDERS ,  SVENSSON ERIK ,  KROON TORD ,  ERIKSSON JAN-ERIK

    IPC: B22D11/11 ,  B22D11/04 ,  B22D11/041 ,  B22D11/07 ,  B22D11/115 ,  B22D11/01

    Abstract: A device for continuous or semi-continuous casting of metal comprising a cooled mold (22) and an induction coil (10) arranged at the top end of the mold. The mold comprises in its top end a plurality of hollow, old segments (22a, 22b, 22c, 22d, 22e, 22f, 22'b, 22'c, 22'd) separated from each other by partitions (26a, 26b, 26c, 26d, 26e), which all comprise an electrically insulating barrier. Both the mold segments and the partitions are oriented essentially in the casting direction. Each hollow top end mold segment comprises a core of a mechanically supporting bar or beam (25a, 25b, 25c, 25d, 25e, 25f, 25'a, 25'b, 25'c, 25'd, 25'e, 25'f) arranged within the hollow mold segment such that it is surrounded by the hollow mold segment. The core exhibits superior mechanical properties in relation to the mold.

    5.
    发明专利
    未知

    公开(公告)号：DE69912105D1

    公开(公告)日：2003-11-20

    申请号：DE69912105

    申请日：1999-03-03

    Applicant: ABB AB VAESTERAAS

    Inventor： LEHMAN ANDERS ,  SVENSSON ERIK ,  KROON TORD ,  ERIKSSON JAN-ERIK

    IPC: B22D11/11 ,  B22D11/04 ,  B22D11/041 ,  B22D11/07 ,  B22D11/115 ,  B22D11/01

    Abstract: A device for continuous or semi-continuous casting of metal comprising a cooled mold (22) and an induction coil (10) arranged at the top end of the mold. The mold comprises in its top end a plurality of hollow, old segments (22a, 22b, 22c, 22d, 22e, 22f, 22'b, 22'c, 22'd) separated from each other by partitions (26a, 26b, 26c, 26d, 26e), which all comprise an electrically insulating barrier. Both the mold segments and the partitions are oriented essentially in the casting direction. Each hollow top end mold segment comprises a core of a mechanically supporting bar or beam (25a, 25b, 25c, 25d, 25e, 25f, 25'a, 25'b, 25'c, 25'd, 25'e, 25'f) arranged within the hollow mold segment such that it is surrounded by the hollow mold segment. The core exhibits superior mechanical properties in relation to the mold.

    6.
    发明专利
    未知

    公开(公告)号：SE0002530L

    公开(公告)日：2002-01-06

    申请号：SE0002530

    申请日：2000-07-05

    Applicant: ABB AB

    Inventor： LARSSON PER ,  LEHMAN ANDERS

    IPC: B22D11/115

    Abstract: A method of controlling the flow of molten metal in non-solidified portions of a strand (3) during continuous casting, and a device for application of the method. The device comprises a two-phase or plural-phase stirrer (1) arranged around a mould (6) that is open in opposite ends and that surrounds the strand (3), said stirrer (1) being arranged to generate a moving magnetic field in the melt, and at least one magnetic flow-conducting body (15) being placed between an inner periphery of said stirrer (1) and the outer periphery of the mould (6). In the case of open casting, the magnetic flow-conducting body (15) is positioned in a first position in which it displaces at least a part of the magnetic flow generated by the stirrer (1) in a direction towards the meniscus (17) of the strand (3), and, in the case of closed casting, the magnetic flow-conducting body (15) is positioned in a second position in which it displaces at least a part of the magnetic flow generated by the stirrer (1) away from the meniscus (17) of the strand (3).

    9.
    发明专利
    未知

    公开(公告)号：SE512691C2

    公开(公告)日：2000-05-02

    申请号：SE9800638

    申请日：1998-03-02

    Applicant: ABB AB

    Inventor： LEHMAN ANDERS ,  SVENSSON ERIK ,  KROON TORD

    IPC: B22D11/11 ,  B22D11/04 ,  B22D11/041 ,  B22D11/059 ,  B22D11/07 ,  B22D11/115

    Abstract: A device for continuous or semi-continuous casting of metal has a cooled continuous casting mold assembly and an inductive coil arranged at the top end of the mold assembly. The mold assembly is divided into at least two mold assembly parts separated and electrically insulated from each other by partitions, which are oriented in the casting direction and where each partition is formed with an electrically insulating barrier. Each mold assembly part has a mold part associated with a corresponding mechanically supporting mold back-up structure part, and an electrical conductor, with an electrical conductivity higher than the electrical conductivity of the back-up structure. The conductor is arranged with the mold back-up structure part on the side of the mold back-up structure part facing away from the mold, the outside face.

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