Method of injection molding composite articles

Details Method of injection molding composite articles Method of injection molding composite articles

1990-01-09

1992-07-21

Woo, Jay H.

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

264261, 264317, 264325, 425543, 425566, B29C 4514, B29C 4516

Patent

active

051320690

ABSTRACT:
A method of molding complex composite articles having skin portions containing fibres to be injected with a resin and a core portion includes providing one or more galleries in the core or fibre skin and injecting resin into the gallery or galleries whereby it is rapidly transmitted to all portions of the skin. The galleries overcome the resistance to flow created by the capillary nature of the fibrous layer and enable more rapid mold cycles to be employed and more complex articles therefore to be molded.

REFERENCES:
patent: 2913036 (1959-11-01), Smith
patent: 3632241 (1972-01-01), Vanderhagen et al.
patent: 4560523 (1985-12-01), Plumley et al.
patent: 4873044 (1989-10-01), Epel
patent: 4880583 (1989-11-01), Douglas

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