Method of forming plastic composite material

Details Method of forming plastic composite material Method of forming plastic composite material

1989-12-27

1991-08-27

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

264280, 264285, 264294, 264324, B29C 4330

Patent

active

050431285

ABSTRACT:
A method for heating and press-forming a plied material sheet prepared by impregnating a thermosetting resin into sheets of parallely disposed plastic fiber or into sheets of woven fabric of plastic fiber. The material sheet is formed into an operation which repeats the steps of heating and press-forming such material sheet within a shaping mold on a heating and press-forming apparatus for a predetermined time period and then releasing the pressure for a predetermined time period while step-feeding the material sheet over a predetermined distance for a time period less than the time period of such released pressure.

REFERENCES:
patent: 2779388 (1957-01-01), Quoss
patent: 2938566 (1960-05-01), Toulmin, Jr.
patent: 3234309 (1966-02-01), Graff
patent: 3615149 (1971-10-01), Malone et al.
patent: 4515848 (1985-05-01), Leunig et al.
Handbook of Composites edited by George Lubin, "Continuous Manufacturing Process", by W. B. Goldsworthy, Chapter 17, pp. 479-490, Van Nostrand Reinhold Company, 135 West 50th St., New York, N.Y. 10020.
Productive Systems for Profitable Pultrusion, a brochure, from Pultrusion Technology, Inc., date unknown.
The Pulmaster, a brochure, from Goldsworthy Engineering, Inc., date unknown.

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