DOUBLE DISINTEGRATION POWDER METHOD

摘要

Method and apparatus are described for producing a fine, narrow size distribution metal powder. The method involves the two stage breakup of a liquid metal stream (4). A first stage breaks the liquid into moderate size droplets or ligaments (6) and delivers them, still in the liquid state, to a second stage. The second stage is a rapidly spinning cup (7) having a rotating water wall (8) which shears the droplets or ligaments from the first stage into very fine powder.