Process for the manufacture of a fibrous preform formed of refra

Details Process for the manufacture of a fibrous preform formed of refra Process for the manufacture of a fibrous preform formed of refra

1991-12-02

1993-07-20

Crowder, Clifford D.

Textiles: manufacturing

Textile product fabrication or treatment

Of thread interlaced article or fabric

28170, 28112, D06H 722

Patent

active

052281752

ABSTRACT:
A fibrous preform is formed from a yarn composed of long discontinuous fibers made of a refractory material or its precursor. The discontinuous fibers are disposed parallel to one another without twist, and the integrity of the yarn is achieved by a covering yarn made of a fugitive material. The fibrous preform is intended to be densified by a matrix material for the manufacture of a composite material article. The covering yarn is eliminated before the preform is densified by the matrix material.

REFERENCES:
patent: 3994762 (1976-11-01), Wrzesien et al.
patent: 4482601 (1984-11-01), Hartigan, Jr.
patent: 4825635 (1989-05-01), Guevel et al.
patent: 4885973 (1989-12-01), Spain
Japanese Patents Gazette Section Ch. Week 8329, 11 Jun. 1983, Derwent Publications Limited, London.

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