To provide a method and an apparatus for producing spherical particles that comprise metal elements of different kinds and have a single uniform composition, wherein processing is carried out taking advantage of the workability inherent in single metal elements so as to omit pretreatment operations.
The method for producing metal particles includes arranging a plurality of plasma torches 2 in symmetry around a central axis of a container 1, forming a crossover region of plasma jets emitted from each of the plurality of plasma torches, continuously feeding metal materials 8 fed from outside to inside of the container to the crossover region by a feeder 9 and a controller 10 thereof so as to form molten droplets, and forming substantially spherical particulates from the molten droplets. Here, the mass ratio of the two or more kinds of metal materials fed is controlled by controlling the feeding ratio of two or more kinds of strip-like metal materials or by feeding to the crossover section a single continuous injection-molded strip-like metal material obtained by injection molding of a mixture of two or more kinds of granular metal materials.
YONEHARA KAZUO
HIROSE YASUO
NAKAMURA KAZU
TADENUMA KATSUYOSHI
KAKEN KK
| JPS63221842A | 1988-09-14 | |||
| JPH06172820A | 1994-06-21 | |||
| JPH03226509A | 1991-10-07 | |||
| JPS62290805A | 1987-12-17 |
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