MAKING METHOD OF TUNGSTEN-BASED COMPOSITE POWDERS WHICH HOMOGENIZES AND MINIATURIZES THE COMPOSITE POWDER PARTICLES

摘要

PURPOSE: A making method of tungsten-based composite powders is provided to prevent environmental contamination by preventing the wastewater.;CONSTITUTION: Tungsten-based composite powders is mixed(1,2). The mixed material powder is pelletized(3). The pelletized composite powder is oxidized(4). The oxidized complex oxide is restored with hydrogen(5). The composite powder is heated with 400°C~900°C range when oxidizing the agglomerated composite powder to the oxygen. The oxidized complex oxide is heated to 700°C~1000°C in the restoring.;COPYRIGHT KIPO 2010