Vetrotex France

Robert Fedorowsky

Philippe Boissonnat

Giordano Roncato

Dominique Loubinoux

Guy Zanella

Extrusion head for producing yarns from a material which has been heated

The process of manufacturing a thermoplastic organic material containing reinforcing fibers and optionally mineral materials and organic additives by combining the fibers and materials in an extruder, and introducing at least some of the organic material into the extruder in the form of continuous filaments or fibers.

Process for manufacturing a composite product by moulding

Drawing, from a first installation, organic filaments in the form of one or more layers which converge toward a same point, and drawing, from a second installation, glass filaments which are joined together to form at least one strand. Guiding structure is provided to laterally introduce the glass strand into the area defined by the organic filaments before it is combined with the filaments at their point of convergence. A blowing device (48, 36) is also provided either outside or inside the area defined by the organic fibers.

Apparatus for manufacturing a glass and organic composite strand,

An apparatus for manufacturing a strand composed of organic filaments and glass filaments for use in the production of composite materials. This apparatus comprises at least one die, which is supplied with molten glass, and at least one drawing head, which is supplied under pressure with organic thermoplastic material, and from which are simultaneously drawn continuous filaments that are combined to form a composite strand. The drawing head comprises a central passage through which filaments of glass are drawn, and is shielded by a hood. The top of the hood includes an opening situated in the centerline of the passage, and the bottom of the hood is formed of a wall which surrounds the drawing head and extends below the level of the bottom of the head. The drawing head is connected with a device for cooling the organic filaments.

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Aix les Bains, France

Robert Fedorowsky