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    • 51. 发明授权
    • Apparatus and method for continuous casting of steel
    • 钢的连铸设备及方法
    • US5375648A
    • 1994-12-27
    • US116138
    • 1993-09-02
    • Akira IdogawaNagayasu BesshoKenichi SorimachiTetsuya FujiiToshikazu Sakuraya
    • Akira IdogawaNagayasu BesshoKenichi SorimachiTetsuya FujiiToshikazu Sakuraya
    • B22D11/11B22D27/02
    • B22D11/11
    • An apparatus and method for continuous casting steel. A vertical continuous-casting mold consists of a pair of long side frames and a pair of short side frames formed of a metal having low electrical conductivity. An immersion nozzle supplies molten steel to the mold. An induction heating coil surrounded by a backup frame surrounds the vertical continuous-casting mold. The induction heating coil induction-heats the surface of the molten steel and neighboring portions thereof. The apparatus meets the following conditions;.xi..sup.2 =.sigma..sub.1 /.sigma..sub.2 .ltoreq.4 1/10.ltoreq. .eta.=(2.mu. .sub.0 .multidot..sigma..sub.2 .multidot..omega.).sup.0.5 .multidot.d.ltoreq. 10where .xi. designates the ratio of electrical conductivity of the mold and the molten steel.sigma..sub.1 designates the electrical conductivity of the mold.sigma..sub.2 designates the electrical conductivity of the molten steel.mu..sub.0 designates the permeability in a vacuumd designates the thickness of the mold.omega. designates the pulsatance of the electromagnetic wave.eta. designates the ratio of the penetration depth of the magnetic field to the molten steel to the mold thickness.
    • 连铸钢的设备和方法。 垂直连铸铸模由一对长边框架和一对由导电性低的金属构成的短边框架构成。 浸入式喷嘴将钢水提供给模具。 由支撑框架包围的感应加热线圈围绕垂直连铸铸模。 感应加热线圈感应加热钢水的表面及其相邻部分。 仪器符合以下条件; xi 2 = sigma 1 / sigma 2