Method for manufacturing a mold for metal casting

Details Method for manufacturing a mold for metal casting Method for manufacturing a mold for metal casting

1976-09-15

1979-06-05

Silbaugh, Jan H.

Metal founding

Process

Shaping a forming surface

164 65, 264129, 264220, 264510, 264511, 264517, 264554, 264571, B22D 2716, B29C 102

Patent

active

041571096

ABSTRACT:
In manufacturing of a mold for metal casting via the vacuum molding process, the cover for the original pattern is made of a synthetic film including, at least partly, ionomer resin component and, further preferably, the exposed surface of the cover set to the pattern is coated with a solution of an initial condensate of a thermosetting resin.
High fidelity in patterning, excellent vacuum retainability, enhanced surface stability and high resistance against thermal decomposition of the ionomer cover film accompanied with considerably reduced casting defects assures high quality of the castings obtained.

REFERENCES:
patent: 3955266 (1976-05-01), Honami et al.
patent: 4043376 (1977-08-01), Kasai et al.
"Ionomers", Modern Plastics Encyclopedia for 1966, 9-1965, vol. 43/No. 1A, pp. 171, 172.

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