Producing Solid Particulate Free Metal Directly From Liquid Metal (e.g., Liquid Comminuting, Etc.) Patents (Class 75/331)
With subsequent coating of the particles (Class 75/332)
Utilizing centrifugal force or rotating forming zone to comminute liquid metal (Class 75/333)
By vibrating or agitating (Class 75/335)
Utilizing electrothermic energy to comminute (Class 75/336)
By impinging plural liquid streams (Class 75/337)
By impinging or atomizing with gaseous jet or blast (Class 75/338)
By extrusion spraying or gravity fall through orifice (Class 75/340)
  • Method of manufacturing metal powders
    Patent number: 4915729
    Abstract: A molten metal is placed in contact with a bed of moving beads. The molten metal breaks up into fine particles which are rapidly cooled in contact with the beads and consequently acquire a structure which is typical for such rapid cooling.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: April 10, 1990
    Assignee: Battelle Memorial Institute
    Inventors: Peter Boswell, Dag F. Richter, Georges Haour