Apparatus for manufacturing curved bodies of fiber reinforced pl

Details Apparatus for manufacturing curved bodies of fiber reinforced pl Apparatus for manufacturing curved bodies of fiber reinforced pl

1975-09-10

1976-10-26

Baldwin, Robert D.

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

With particle liberating means

118 36, 118308, 425 90, 425305R, 425521, B29J 500

Patent

active

039880893

ABSTRACT:
Manufacturing a curved fiber reinforced body of plastic material by cutting plastic impregnated fibers with a cutter, directing the cut fibers onto a rotating form and applying a plastic material to the fibers. The fibers are deposited in predetermined radial and circumferential directions to build up a preform of overlapping layers of oriented fibers as the form is rotated. The preform is shaped by compression between mating shaping forms to substantially the final molded shape. The plastic material contains a curative and is partially cured under controlled conditions after the preform is built. The preform is then preheated in an oven and molded under predetermined pressures and temperatures.

REFERENCES:
patent: 3073534 (1963-01-01), Hampshire
patent: 3177275 (1965-04-01), Brenner
patent: 3244302 (1966-04-01), Best

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