Brochier S.a.

Hexcel Reinforcements

Other

Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Snecma Propulsion Solide

Societe Nationale D'etude Et De Construction De Moteurs D'aviation-snecma

Application Des Gaz

Hexcel Fabrics

Jean Aucagne

Bruno P Bompard

Alain Bruyere

Dominique Coupe

Pierre Olry

Renaud Duval

Laurent Martinet

Christian Debaille

Franck Perret

Jean-Paul Lamarie

Jean-Francedillaois Veauville

Bertrand Germain

Herve Auduc

Jean-Claude Pivot

Bernard Lapresle

A plurality of unidirectional sheets () are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.

Machine for producing multiaxial fibrous webs

Method and machine for producing multiaxial fibrous webs

A plurality of unidirectional sheets ( ) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m , cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.

Method for making fibrous preforms for producing annular parts from a

A woven fabric to be used in formation of a composite material includes multifilament warp and weft threads. Each of the warp threads and the weft threads have a total weight less than 80% of the weight of the fabric. The woven warp and weft threads have O twist/m and a torsion no greater than an original torsion of the threads before weaving. Each woven warp and weft thread has a width over the entire length thereof that is greater than or equal to an original width before weaving. The fabric is woven to have a given weight per unit area and a fiber volume ratio that is approximately constant throughout the fabric and that is satisfactory for use of the fabric in a composite material. The warp and weft threads of a yarn count that is greater than a yarn count traditionally used to achieve the fiber volume ratio for the given weight per unit area.

Warp and weft fabric based on predominantly untwisted multifilament

Composite material fabric based on predominantly untwisted coarse

Textile reinforcing material useful for producing composite laminated articles by a general injection-molding technique, which is fabricated by arranging a stack of layers having textile reinforcements in a mold of a shape corresponding to that of the article to be fabricated and, after the mold has been closed, injecting a resin into it. At least one layer of the stack of textile reinforcements has a structure in which ducts extend in at least one direction therein to facilitate the flow of the resin during injection.

Textile material useful for producing composite laminated articles by

Spiral-shaped textile structure

Deformable textile structure

Textile structure based on filaments impregnated and/or coated with thermoplastic material (FIT filaments) is formed from at least two layers of such FIT filaments, arranged perpendicularly to one another in the manner of a warp and a weft, but without being interlaced, and a binding weave consisting of a warp and a weft holding each of the FIT filaments in position. The textile structure is particularly applicable to the production of laminates exhibiting high mechanical stength.

Textile structure with binding weave for multiple layers of

The present invention relates to a fiber-based, fire-resistant fabric comprising a mixture of:

Fabric based on glass and carbon fibers and articles comprising such a

A fiber-based fabric having a high fire resistance, a low weight per unit area and a good mechanical strength, comprising a mixture of:

The invention relates to a new complex filiform textile element comprising fibers of an inorganic material. The element in accordance with the invention is characterized by the fact that the fibers are contained on the outside by an enveloping but open structure of metal, the total area of the openings (So) being greater than the total area of the enveloping structure (Se) covering the apparent peripheral surface of all the entire fibers.

Textile element and woven material intended in particular to serve as

Growing community of inventors

La Tour du Pin, France

Jean Aucagne