Method for surface activation of water atomized powders

Details Method for surface activation of water atomized powders Method for surface activation of water atomized powders

B - Operations, Transporting

22

F

18/500.4

B22F 1/00 (2006.01) B22F 3/02 (2006.01) C23G 1/02 (2006.01)

Patent

CA 1316317

PC-1264 METHOD FOR SURFACE ACTIVATION OF WATER ATOMIZED POWDERS ABSTRACT A method for pickling and consolidating water atomized metallic powders to reduce surface oxides. The technique includes introducing the powder into an acid bath - preferably nitric acid and hydrofluoric acid, rinsing the powder, introducing the powder into an alkaline bath, rinsing the powder and then consolidating the powder into a workpiece. Alternatively, the powder can be additionally introduced into a second acid bath and/or placed into a finishing boric acid bath before consolidation.

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