Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1995-08-30
1998-05-19
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
264108, 264160, 26432812, 425544, 425DIG228, B29C 4334
Patent
active
057531641
ABSTRACT:
An automated transfer/injection 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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Bodary Joseph A.
Freeman Richard Benjamin
Ingham Terry L.
Morse John J.
Ritchie Jack J.
Eashoo Mark
Silbaugh Jan H.
The Budd Company
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