Production of complex cavities inside castings or semi solid...

Details Production of complex cavities inside castings or semi solid... Production of complex cavities inside castings or semi solid...

B - Operations, Transporting

22

D

B22D 19/00 (2006.01) B22C 9/10 (2006.01)

Patent

CA 2091675

2091675 9204999 PCTABS00011 The production of complex cavities inside castings or semi solid forms is effected by forming a core pattern (10) of a low melting point metal in order to provide a rigid metal core pattern (10). The pattern (10) is then nickel coated using either electroplating or electroless nickel plating. The metal core pattern (10) is melted out of the nickel plating to provide a nickel liner core (16). The nickel liner core (16) is placed within a mold or die cavity, and molten metal introduced into the cavity in order to provide a casting or form (30). The casting or form (30) is removed from the cavity and includes therein a plurality of passageways (20) each of which is defined and surrounded by a corrosion resistent nickel liner surface (22).

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