process for the production of accessories for aluminium powder metallurgy routes and / or aluminium alloys

摘要

Powdered Al or its alloy is mixed with a lower melting alloy of Al or Zn having high wetting power due to the addition of 0.01 - 10 % (pref. 0.05 - 2 %) Bi and/or Sr and/or Ba and/or Sb, and/or 0.0001 - 1 % (pref. 0.0002 - 0.1 %) Be; the mixt. is compressed and heated in a non - oxidising atmos. at a temp. = m.pt. of the lower - melting component. By this method. stress - free articles are produced in one operation. There is no need to use temporary organic binders.