Method and apparatus for reduction of mold cycle time

Details Method and apparatus for reduction of mold cycle time Method and apparatus for reduction of mold cycle time

1987-12-21

1989-10-10

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264314, 2643287, 249 65, 249 82, 249117, 4251291, 425389, 4254051, 425417, 425542, B29C 4556, B29C 3940

Patent

active

048730440

ABSTRACT:
A method and apparatus are disclosed for the reduction of mold cycle time. A deflatable member is positioned flush with the surface of a mold in an opening defined downwardly therein. Prior to flow of a resin or other hardenable liquid within the mold, the deflatable member is deflated so as to define a resin flow channel across selected portions of the mold surface. Prior to hardening of the hardenable liquid within the mold, the deflatable member is inflated so as to become flush with the surface of the mold so as to yield an article of manufacture having a relatively planar surface.

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