Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1986-07-14
1989-08-08
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
264129, 264257, 264258, B29C 4356
Patent
active
048550973
ABSTRACT:
A method for making a part with a smooth surface, such as an exterior automotive body panel, by compression molding a charge containing a curable resin. The charge is placed on the molding surface of one of the dies of a compression mold so that the charge covers 40%-80% of the surface area of the molding surface. The molds are moved to a partially closed position and the mold cavity is quickly evacuated. The mold is then closed so that the dies compress the charge to cause it to fill the mold cavity and, after the resin cures, the part is removed from the mold.
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Iseler Kenneth A.
Wilkinson Robert E.
Durkin II Jeremiah F.
Lowe James
The Budd Company
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