METHOD OF PRODUCTING COPPER NANOPOWDERS BY TRANSFERRED ARC PLASMA

摘要

PURPOSE: A method for manufacturing copper nanopowder is provided to improve the structure of a crucible using transferred-arc plasma of high temperature, to manufacture the nanopowder having a uniform particle size distribution, and to increase a production speed. CONSTITUTION: A method for manufacturing copper nanopowder comprises the following steps: producing the copper nanopowder with a uniform-size by vaporizing bulk copper using transferred-arc plasma flame and cooling gas; removing an aggregated powder which has a size more than micron through a cyclone; and collecting the nanopowder by transferring the nanopowder to a collecting chamber with a filter and making the nanopowder absorbed to the filter.