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    METHOD FOR MANUFACTURING METAL POWDER
    1.
    发明公开
    METHOD FOR MANUFACTURING METAL POWDER 审中-公开
    制造金属粉末的方法

    公开(公告)号：EP2839906A1

    公开(公告)日：2015-02-25

    申请号：EP13777813.0

    申请日：2013-04-10

    申请人： Shoei Chemical Inc.

    发明人： SHIMIZU, Fumiyuki ,  MAEKAWA, Masayuki ,  NISHIKAWA, Tomotaka

    IPC分类号： B22F9/14 ,  H05H1/48 ,  B22F9/12 ,  H05H1/42 ,  C22C9/00 ,  C22C19/03

    摘要： A method for manufacturing metal powder by melting at least a portion of a metal starting material using a plasma (7) inside a reaction vessel (2) to form molten metal (8), then evaporating the molten metal (8) to generate a metal vapor, transferring the metal vapor together with a carrier gas supplied into the reaction vessel (2) from the reaction vessel (2) to a cooling pipe (3), and cooling and coagulating to generate the metal powder, wherein oxygen gas is supplied into the reaction vessel (2).

    摘要翻译： 一种金属粉末的制造方法，其特征在于，在反应容器（2）内使用等离子体（7）熔融至少一部分金属原料而形成熔融金属（8），然后蒸发熔融金属（8）而生成金属 将反应容器（2）中供给的载气从反应容器（2）一起输送到冷却管（3），冷却凝固而生成金属粉末，将氧气供给 反应容器（2）。

    PLASMA DEVICE FOR PRODUCTION OF METAL POWDER
    3.
    发明公开
    PLASMA DEVICE FOR PRODUCTION OF METAL POWDER 审中-公开
    PLASMAVORRICHTUNG ZUR HERSTELLUNG EINES METALLPULVERS

    公开(公告)号：EP2789414A1

    公开(公告)日：2014-10-15

    申请号：EP12855937.4

    申请日：2012-11-08

    申请人： Shoei Chemical Inc.

    发明人： SHIMIZU, Fumiyuki ,  MAEKAWA, Masayuki ,  KAWAGUCHI, Shusaku

    IPC分类号： B22F9/14 ,  B01J19/08 ,  H05B7/18 ,  H05H1/32

    摘要： A plasma device which is provided with: a reaction container to which a metal starting material is supplied; a plasma torch which generates plasma between itself and the metal starting material within the reaction container, thereby evaporating the metal starting material and producing a metal vapor; a carrier gas supply unit which supplies, into the reaction container, a carrier gas for conveying the metal vapor; and a cooling tube which cools the metal vapor that is conveyed from the reaction container by the carrier gas, thereby producing a metal powder. The cooling tube is provided with: an indirect cooling section for indirectly cooling the metal vapor that is conveyed from the reaction container by the carrier gas and/or the metal powder; and a direct cooling section for directly cooling the metal vapor and/or the metal powder, said direct cooling section being continued to the indirect cooling section. At least a part of the inner wall of the indirect cooling section is provided with projections and/or recesses.

    摘要翻译： 一种等离子体装置，其具备：供给金属原料的反应容器; 等离子体焰炬，其在其内部和反应容器内的金属起始材料之间产生等离子体，从而蒸发金属原料并产生金属蒸气; 载气供给单元，其向反应容器供给用于输送金属蒸气的载气; 以及冷却管，其通过载气冷却从反应容器输送的金属蒸气，由此制造金属粉末。 冷却管设有：用于间接冷却由载气和/或金属粉末从反应容器输送的金属蒸汽的间接冷却部分; 以及用于直接冷却金属蒸气和/或金属粉末的直接冷却部分，所述直接冷却部分继续到间接冷却部分。 间接冷却部分的内壁的至少一部分设置有突起和/或凹部。