Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1986-09-10
1988-09-13
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264 295, 264102, 264316, 264324, 419 49, 419 68, B29C 4310
Patent
active
047708352
ABSTRACT:
A method of molding an article utilizing two types of solid flowable particulate polymer pressurizing media wherein one medium is protected from thermal degradation by a second medium. The method comprises disposing an article precursor within a pressure vessel and disposing a first solid flowable polymer medium that is substantially thermally stable at temperatures in excess of about 316.degree. C. so that it is capable of transferring a substantially uniform, predetermined medium pressure to the surface of the article precursor. A second solid flowable polymer medium is disposed so that it is capable of transferring a substantially uniform, predetermined medium pressure to the first polymer medium. The second medium is caused to produce a substantially uniform medium pressure so that said pressure is transferred to the surface of the article precursor and the article precursor is exposed to temperatures in excess of about 316.degree. C. The second polymer is protected from thermal degradation by the thermal stability and high insulative capability of the first polymer medium.
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AGM-130 Propulsion Module Proposal 84-32, vol. 3: Cost and Pricing Proposal.
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Lowe James
United Technologies Corporation
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