Automated thermoset molding apparatus
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United States of America Patent
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May 11, 1999
Issued Date -
N/A
app pub date -
Dec 29, 1997
filing date -
Aug 30, 1995
priority date (Note) -
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Abstract
An automated transfer/injection molding apparatus and process is defined that includes a charge forming unit, a shuttle unit, and a molding unit. The charge is formed from one or more slabs of reinforcing fibers and a resinous material. Once formed, the charge is preheated in the charge shuttle unit and is delivered to the molding unit, whereupon the preheated charges are forced by the pressure of a movable platform under vacuum into a mold cavity for polymerization. The fibers within the slabs are randomly oriented in parallel horizontal planes such that they are always parallel to the direction of initial flow into the cavity.
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