| 摘要 |
PURPOSE:To produce powder for powder metallurgy which permits cold molding and has excellent sinterability by obtaining flake powder having a specific average thickness or below from a molten metal having a desired compsn. and pulverizing the powder to a specific averge grain size or below by mechanical pulverizing. CONSTITUTION:The flake powder contg. <=500ppm oxygen and having <=50mum average thickness is produced from the molten metal having the desired compsn. The flake powder is subjected to dry mechanical pulverizing in a non-oxidizing atmosphere to form the powder contd. <=1,000ppm oxygen and having <=20mum average grain size. The powder for powder metallurgy is thus obtd. |
