Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1987-05-12
1988-12-06
Terapane, John F.
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
264510, 264519, 264257, 264327, 425812, B29C 4500, B29C 4700, B29C 3502, B29C 4302
Patent
active
H00005592
ABSTRACT:
A method for curing resin in the fabrication of a composite material is described comprising enclosing the composite material within a flexible vacuum enclosure, and substantially simultaneously pressing the material within the enclosure between first and second platens of a press to preselected pressure, evacuating the enclosure, selectively heating one of the platens according to a preselected scheme to preselected cure temperature to cure the resin within the material, and cooling the other platen to maintain a preselected temperature differential between the platens across the thickness of the material, whereby cure of the resin is effected in the material first near the heated platen and progresses through the thickness of the material toward the cooler platen as the material is heated to the cure temperature.
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Scearce Bobby D.
Singer Donald J.
Terapane John F.
The United States of America as represented by the Secretary of
Thomas J. E.
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