Method of manufacturing a disintegratable core for casting

Details Method of manufacturing a disintegratable core for casting Method of manufacturing a disintegratable core for casting

1986-12-04

1987-08-11

Batten, Jr., J. Reed

Metal founding

Process

Shaping a forming surface

106 3827, 164 72, 164138, 164369, 427134, B22C 122, B22C 300, B22C 910

Patent

active

046855033

ABSTRACT:
A core is formed by molding a mixture of an organic binding material and a fireproof granular substance. The core is impregnated with an aluminum-phosphorus oxide solution. The impregnated core is heated at 400.degree.-1000.degree. C. for about an hour.
The disintegrable core for casting can be produced much more quickly than before and with considerably less expenditure of energy.

REFERENCES:
patent: 3501320 (1970-03-01), Pietryka et al.
patent: 4443259 (1984-04-01), Nooden

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