Positive displacement molding of plastic parts

Title: Positive displacement molding of plastic parts

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The present invention is a method and apparatus for molding plastic parts and placing and orienting reinforcing fibers within structurally thin sections. More specifically, the method of the present invention is a molding technique wherein positive displacement is applied to incremental sections of a charge (plastic mixed with reinforcing fibers), thereby sequentially forming the desired part and placing reinforcing fibers within structurally thin sections. The apparatus of the invention is a moveable ram that may be tapered and that is in contact with the charge during forming.

Inventors:: Gordon, N. Ross; Dilly, Scott J.; Simmons, Kevin L.; Woodcock, Leslie J.

Issue Date:: 2018-07-10

OSTI Identifier:: 1463597

Assignee:: BATTELLE MEMORIAL INSTITUTE (Richland, WA) PNNL

Patent Number(s):: 10,016,914

Application Number:: 07/923,416

Contract Number:: AC06-76RL01830

Resource Relation:: Patent File Date: 1992 Jul 31

Research Org:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 42 ENGINEERING

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