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Apparatus for the manufacture of spherical metallic powder non-contaminated by ambient atmosphere

  • US 3,966,374 A
  • Filed: 12/11/1974
  • Issued: 06/29/1976
  • Est. Priority Date: 12/20/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for manufacturing metallic powder by gaseous atomization of a jet of liquid metal, comprising a vertical cylindro-conical receiver for receiving liquid metal through its top and comprising at its top part an annular arrangement of gas injectors for atomization of the liquid metal and an outlet for dust-laden gas, at its bottom part a hopper for metallic powder, and means for introducing gas into the bottom half of its cylindrical portion comprising a plurality of jets arranged tangentially to a theoretical cylinder centered on the axis of said receiver and opening in the same direction with respect to said axis and tilted from 0°

  • to 60°

    with respect to the horizontal to cause vortices of inert gas and metallic powder and said theoretical cylinder passing through the outlet orifices of said jets.

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