Method for casting metal alloys

Details Method for casting metal alloys Method for casting metal alloys

1976-08-20

1977-08-23

Shore, Ronald J.

Metal founding

Process

Shaping a forming surface

164 14, 164 37, 164 41, 164 61, 164132, 164138, 427133, B22C 300, B22C 910

Patent

active

040433773

ABSTRACT:
In a method for casting metal alloys, a molten metal alloy is introduced into a mold of a desired configuration containing a core material fabricated to a desired shape from titanium nitride while maintaining the mold under a vacuum. After allowing the mold to cool slowly to room temperature, the casted metal alloy with the core material exposed at one end is removed from the mold and immersed in a boiling caustic solution, thereby causing the titanium nitride core material to decompose. The casting so obtained has a smooth inner surface, an indication that no chemical reactions have occurred between the alloy and the core material.

REFERENCES:
patent: 3537949 (1970-11-01), Brown et al.
patent: 3727666 (1973-04-01), Vander Sluis
patent: 3850624 (1974-11-01), Hulit et al.
patent: 3957104 (1976-05-01), Terpay

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