Effect of process parameters on production of metal powders by water jet cooled rotating disc atomisation


Ozturk S. , ARSLAN F., OZTURK B.

POWDER METALLURGY, vol.48, no.2, pp.163-170, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 2
  • Publication Date: 2005
  • Doi Number: 10.1179/003258905x37738
  • Title of Journal : POWDER METALLURGY
  • Page Numbers: pp.163-170
  • Keywords: rotating disc atomisation, powder production, CENTRIFUGAL ATOMIZATION, ALLOY, PARTICLES

Abstract

An experimental centrifugal atomiser was designed and constructed. The apparatus operates on the principle of atomising molten metal by pouring it onto a water jet cooled rotating disc. The disc was of a cylindrical reversed cup shape and the disc was cooled on the reverse side. The cooling water did not come into contact with the liquid metal and powders produced. Liquid metal did not stick on the disc because of effective cooling. Pure tin was used as the raw material to investigate the effects of production parameters, such as disc geometry, disc diameter, rotating speed, fin number, fin type, superheat and flowrate, of the liquid metal on the mean powder size and yield rate. Pure lead, zinc, aluminium and AA2014 alloy were also atomised to investigate the effects on metal types.