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    • 65. 发明公开
    • Process for producing finely divided spherical metal powders
    • Verfahren zur Herstellung von feinteiligenkugelförmigenMetallpulvern。
    • EP0339914A1
    • 1989-11-02
    • EP89304074.1
    • 1989-04-24
    • GTE Products Corporation
    • Kopatz, Nelson E.Johnson, Walter A.Ritsko, Joseph E.
    • B22F1/00B22F9/24C22C1/04
    • C22C33/0207B22F1/0048
    • Alloys of a metal from the same group of the Periodic Table as iron and one or more easily oxidizable metals can be formed by forming an aqueous solution of the iron group metal, forming solids containing the metals from the solution, reducing the solids to a metallic powder, converting the metallic powder to metallic alloy spherical powders, agglomeration the spherical powder with one or more easily oxidizable metals such as Aluminium in a non-­oxidizing atmosphere, thereafter the agglomerates are subjected to a sufficient temperature under non-oxidizing conditions to form an alloy. Alternatively, the easily oxidizable metals can be agglomerated with the solids containing the iron group metal prior to converting the agglomerates to a spherical alloy powder. The process provides spherical metallic powder particles which have a uniform distribution of constituents.
    • 可以通过形成铁族金属的水溶液,从溶液中形成含有金属的固体,从而将固体的金属从金属中除去,从而将固体还原为金属 粉末,将金属粉末转化为金属合金球形粉末,将球形粉末与一种或多种易氧化性金属如铝在非氧化性气氛中附聚,然后在非氧化条件下使附聚物充分充分温度,形成 合金。 或者,在将附聚物转化为球形合金粉末之前,容易氧化的金属可以与含有铁族金属的固体团聚。 该方法提供具有均匀分布分布的球形金属粉末颗粒。