Apparatus for molding composite articles

Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under...

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264316, 26432816, 425547, 425552, 425571, 425DIG110, B29C 4526, B29C 4573

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059717424

ABSTRACT:
An apparatus for molding composite articles includes a pair of opposed matched-tool mold sections, each having a rigid housing and a thin, semi-rigid membrane removably and sealably mounted on the housing so as to define a fluid-tight chamber therein. The chamber of each mold section is filled with a noncompressible heat-conductive fluid to provide fluid backing to the portions of each membrane defining the molding surfaces of each mold section. A system of temperature control coils extending within each chamber are connected to an external heater/chiller unit to permit circulation therethrough of a suitable temperature control fluid, whereby positive control of the temperature of the backing fluid and, correlatively, the molding surfaces of the membranes.

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A. Delaney and H. Dochtermann, Plastic Molding Apparatus, IBM Technical Disclosure Bulletin, vol. 17, No. 2, pp. 479-480, Jul. 1974.
Rosato, Dominick and Rosato, Donald, Injection Molding Handbook, Van Nostrand Reinhold Co., p. 210, 1986.

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