Investment shell molding process

Details Investment shell molding process Investment shell molding process

1975-10-23

1977-08-09

Shore, Ronald J.

Metal founding

Process

Shaping a forming surface

164161, 164361, 249 52, B22C 0902, B22C 1308

Patent

active

040404668

ABSTRACT:
A method of making investment shell molds by the lost pattern process characterized in that a strand such as wire or the like is wound circumferentially about a pattern assembly in at least one location before it is coated with refractory material to form a mold shell. Thereafter, the strand is unwound to separate the shell into segments, each of which is usable as a mold.

REFERENCES:
patent: 3338404 (1967-08-01), Becker et al.
patent: 3424227 (1969-01-01), Watts et al.
patent: 3447733 (1969-06-01), Smith et al.
patent: 3491907 (1970-01-01), Eelkema
patent: 3669177 (1972-06-01), Ingalls et al.

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