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    PROCEDE DE FUSION ET DE SOLIDIFICATION SANS CONTACT D'UN ECHANTILLON CONDUCTEUR D'ELECTRICITE
    2.
    发明授权
    PROCEDE DE FUSION ET DE SOLIDIFICATION SANS CONTACT D'UN ECHANTILLON CONDUCTEUR D'ELECTRICITE 有权
    电铅含量的试验方法进行非接触粘合固化和

    公开(公告)号：EP1222841B1

    公开(公告)日：2004-12-01

    申请号：EP00966254.5

    申请日：2000-10-02

    申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

    发明人： GILLON, Pascale

    IPC分类号： H05B6/32

    CPC分类号： H05B6/32

    摘要： The invention concerns a method for melting and solidifying an electric conductor sample, which consists in: melting the sample by induction using a high frequency alternating magnetic field; superposing on the alternating magnetic field a continuous magnetic field gradient with high intensity, so as to levitate the melted sample without contact with solid surfaces; and in reducing the intensity of the alternating magnetic field by increasing the intensity of the continuous magnetic field, so as to maintain the sample in levitation without contact with the solid surfaces; and reducing the temperature of the sample to obtain solidification without contact of said sample. The invention is applicable to samples comprising at least a metastable phase.

    Levitation melting crucibles
    4.
    发明公开
    Levitation melting crucibles 失效
    悬浮熔化坩埚

    公开(公告)号：EP0743806A3

    公开(公告)日：1996-12-18

    申请号：EP96106970.5

    申请日：1996-05-03

    申请人： DAIDO TOKUSHUKO KABUSHIKI KAISHA

    发明人： Yamada, Junji ,  Demukai, Noburu

    IPC分类号： H05B6/32 ,  F27D11/06

    CPC分类号： H05B6/32 ,  F27B14/063

    摘要： Disclosed is a levitation melting crucible which can facilitate penetration of magnetism into the crucible and which can prevent a molten metal from being contaminated by an insulating material. The levitation melting crucible comprises a cylindrical main body (12) having a closed bottom, a plurality of slits (14) defined vertically in the circumferential wall of the main body (12) to open inward and outward at predetermined intervals in the circumferential direction and an insulating material (18) filled in each of the slits (14); wherein each slit (14) is designed to have an inner opening width smaller than its outer opening width, with respect to the radius of the main body (12), for example, 1.5 A > B.

    摘要翻译： 本发明公开了一种悬浮熔化坩埚，其可以促进磁力渗入坩埚并且可以防止熔融金属被绝缘材料污染。 悬浮熔化坩埚包括具有封闭底部的圆柱形主体（12），在主体（12）的圆周壁中垂直限定的沿圆周方向以预定间隔向内和向外开口的多个狭缝（14），以及 填充在每个狭缝（14）中的绝缘材料（18）; 其中每个狭缝（14）被设计成具有相对于主体（12）的半径小于其外部开口宽度的内部开口宽度，例如1.5A> B。

    Float melting apparatus and method employing axially movable crucibles
    5.
    发明公开
    Float melting apparatus and method employing axially movable crucibles 失效
    Apparat zum Schwebenschmelzen und Verfahren bei dem axial bewegbareTiegelöfenverwendet werden。

    公开(公告)号：EP0576845A1

    公开(公告)日：1994-01-05

    申请号：EP93108799.3

    申请日：1993-06-01

    申请人： NATIONAL RESEARCH INSTITUTE FOR METALS ,  CHUBU ELECTRIC POWER COMPANY, INCORPORATED ,  FUJI ELECTRIC CO., LTD.

    发明人： Fukuzawa, Akira, c/o National Research ,  Sakuraya, Kazuyuki, c/o National Research ,  Watanabe, Toshiaki, c/o National Research ,  Yamazaki, Motoo ,  Morita, Tadashi, c/o Fuji Electric Co., Ltd. ,  Take, Tatsuo, c/o Fuji Electric Co. Ltd. ,  Fujita, Michiru,c/o Fuji Electric Co., Ltd.

    IPC分类号： H05B6/32 ,  H05B6/24 ,  F27D11/06

    CPC分类号： H05B6/32 ,  F27B14/063 ,  H05B6/24

    摘要： To float and melt particularly small pieces of high-melting point metal continuously while making the amount of meltable liquid metal greater than the capacity of a crucible. A conductive crucible having segments (11a,12a) includes an upper cylindrical crucible (11) and a lower closed-end crucible (12). An induction coil (14) is arranged outside the upper crucible (11), whereas an induction coil (15) is arranged below the induction coil (14). The lower crucible (12) is in contact with the upper crucible (11) and located on the inside of the induction coil (15) at the initial melting stage. The lower crucible (12) is lowered as a columnar metal (19) grows and solidifies between molten metal (18) and the lower crucible (12). A continuous feeder (21) continuously feeds cold material (20). A molten metal surface thermometer (23) and a molten metal surface level gauge (24) are arranged above the crucible. The operation of the continuous feeder (21) is regulated within a desired range of values of the molten metal surface thermometer (23). On the other hand, the lower crucible (12) is successively lowered within a desired range of values of the molten metal surface level gauge (24).

    摘要翻译： 连续地漂浮和熔融特别是小块的高熔点金属，同时使可熔化液体金属的量大于坩埚的容量。 具有段（11a，12a）的导电坩埚包括上圆柱形坩埚（11）和下封闭端坩埚（12）。 感应线圈（14）设置在上坩埚（11）的外侧，而感应线圈（15）布置在感应线圈（14）的下方。 下坩埚（12）在初始熔化阶段与上坩埚（11）接触并位于感应线圈（15）的内侧。 随着柱状金属（19）在熔融金属（18）和下坩埚（12）之间生长和固化，下坩埚（12）下降。 连续进料器（21）连续地供给冷材料（20）。 熔融金属表面温度计（23）和熔融金属表面液位计（24）布置在坩埚的上方。 连续进料器（21）的操作被调节在熔融金属表面温度计（23）的期望值范围内。 另一方面，下坩埚（12）在熔融金属表面液位计（24）的期望值范围内连续降低。

    Levitation melting method and melting and casting method
    10.
    发明授权
    Levitation melting method and melting and casting method 失效
    悬停融合和熔化和浇铸方法

    公开(公告)号：EP0747648B1

    公开(公告)日：2001-11-21

    申请号：EP96106965.5

    申请日：1996-05-03

    申请人： DAIDO TOKUSHUKO KABUSHIKI KAISHA

    发明人： Yamada, Junji ,  Demukai, Noboru

    IPC分类号： F27B14/06 ,  H05B6/32

    CPC分类号： H05B6/32 ,  B22D18/06 ,  B22D27/13 ,  F27B14/063 ,  Y10S117/901

    摘要： Disclosed is a levitation melting method comprising applying a high-frequency current to a high-frequency induction coil (20) wound around a melting crucible (12) to induction-heat a material (22) introduced to the melting crucible (12); and erecting the resulting molten metal (22a) to be in no contact with the inner wall surface of the melting crucible (12) with the bottom of the material (22) being maintained in the solidified state; wherein a power input P (kw) of a high-frequency power source to the high-frequency induction coil (20), an inner radius R (mm) at the bottom of the crucible (12) and super heat DELTA T ( DEG C) of the molten metal (22a) satisfy the relationship of P/R2 = DELTA T.(0.0008 to 0.002), as well as, a melting and casting method for casting the molten metal prepared by the levitation melting method described above into a mold using a snout (26) suspended above the melting crucible such that the lower end of the snout (26) may be submerged in the molten metal (22a).