Method of core removal from molded products

Details Method of core removal from molded products Method of core removal from molded products

1991-12-09

1993-11-16

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

164522, 264221, 264317, B29C 3348

Patent

active

052621006

ABSTRACT:
A method of removing a core from a molded product in which the core is formed of a particulate inert material, such as sand, bound together by a cured water soluble binder. The binder is cured by heat. The core and molded product are exposed to water, preferably heated water in a bath or steam, after the product has been molded to rapidly disintegrate the core and remove it from the molded product.

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