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    • 2. 发明申请
    • METHOD AND SYSTEM OF ELECTROMAGNETIC STIRRING FOR CONTINUOUS CASTING OF MEDIUM AND HIGH CARBON STEELS
    • 用于连续铸造中高碳钢的电磁搅拌方法与系统
    • US20090229783A1
    • 2009-09-17
    • US12404798
    • 2009-03-16
    • Anastasia KolesnichenkoAnatoly F. KolesnichenkoViktoriia V. Buriak
    • Anastasia KolesnichenkoAnatoly F. KolesnichenkoViktoriia V. Buriak
    • B22D27/02
    • B22D11/115B22D11/122
    • A method and an apparatus are provided for electromagnetic stirring during a continuous casting process, especially for casting a billet and bloom of medium and high carbon steels. The method and apparatus provide a higher surface quality of the ingot, reduce the entrapping of nonmetallic inclusions into the ingot, and suppress issues regarding central segregation and central porosity. The method provides an improvement in the stirring process from the meniscus to the crater end—and relates to in-mold stirring and stirring in a zone of secondary cooling and up to the crater end. The in-mold stirring is geared towards the suppression of meniscus disturbance, for submerged casting, in particular, the reducing of helical and axial velocity components of the molten steel, the lowering of the initial solidification point to avoid the touching of a shell edge with the slag ring, and a decrease of oscillation marks.
    • 提供了一种在连续铸造过程中用于电磁搅拌的方法和装置,特别是用于铸造中高碳钢的坯料和花纹。 该方法和装置提供了更高的铸锭表面质量,减少了非金属夹杂物进入铸锭的夹杂物,并抑制了中心偏析和中心孔隙度的问题。 该方法提供了从弯液面到火山口端的搅拌过程的改进,并且涉及在二次冷却区域和直至火山口端的模内搅拌和搅拌。 模内搅拌适用于抑制弯液面扰动,对于浸没式铸造,特别是减少钢水的螺旋和轴向速度分量,降低初始凝固点,以避免与壳边缘的接触 炉渣环,减少振动痕迹。
    • 3. 发明授权
    • Apparatus and method for sidewall containment of molten metal with
vertical magnetic fields
    • 用于侧壁容纳熔融金属垂直磁场的装置和方法
    • US5495886A
    • 1996-03-05
    • US236366
    • 1994-04-29
    • Anatoly F. Kolesnichenko
    • Anatoly F. Kolesnichenko
    • B22D11/04B22D11/06B22D11/10B22D11/115B22D27/02
    • B22D11/0662
    • A magnetic confining method and apparatus in accordance with the present invention generates, adjacent the open side of the roller gap, a primary vertical magnetic field (a) resulting from direct current (D.C.) or alternating current (A.C.) flowing through a coil surrounding a core of a primary electromagnet or (b) resulting from an induced horizontal current flowing through roller shafts, roller sleeves and the edge of the molten metal. There are one or more additional vertical magnetic fields, that serve to concentrate and/or shape the primary magnetic field, and the vertical fields combine to provide electromagnetic forces sufficient for containment of the molten metal in the vertical gap between the rollers. Both the primary vertical field and one or more additional or secondary vertical magnetic fields extend through the open side of the gap to the molten metal in the gap. The combination of magnetic fields cooperate to provide sufficient electromagnetic force over the depth of the molten metal, at the molten metal sidewall to electromagnetically confine the molten metal within the gap between the rollers and stabilize the molten metal at the sidewall.
    • 根据本发明的磁约束方法和装置在辊间隙的开口侧附近产生由直流(DC)或交流电流(AC)产生的初级垂直磁场(a) 或(b)由流过辊轴,辊套和熔融金属边缘的感应水平电流引起的。 存在用于集中和/或形成初级磁场的一个或多个附加的垂直磁场,并且垂直磁场组合以提供足以容纳熔融金属在辊之间的垂直间隙中的电磁力。 初级垂直场和一个或多个附加的或次要的垂直磁场均通过间隙的开口侧延伸到间隙中的熔融金属。 磁场的组合在熔融金属侧壁上在熔融金属的深度上提供足够的电磁力,以将熔融金属电磁地限制在辊之间的间隙内并使熔融金属在侧壁处稳定。