METHOD FOR REALIZING REINFORCED THERMOPLASTIC MATERIAL, BUMPER BEAM AND BUMPER COMPRISING SUCH A BEAM

摘要

P Process for producing a piece of thermoplastic material reinforced by a reinforcing sheet appearing on one of the faces of said part, characterized in that it consists in: BR/ - using a mold comprising a main cavity which defines the general shape of the part and secondary cavities opening into a wall of the main cavity and defining protrusions (10, 11, 12) projecting from one of the faces of the part, BR/ - deposit in the molds a reinforcing sheet (8) constituted by a woven or a nonwoven of reinforcing fibers mixed with thermoplastic material, against said wall of the main cavity, the reinforcing sheet thus closing the mouth of the secondary cavities, / - introducing a thermoplastic material optionally loaded with fibers into the main cavity of the mold, on the side of the reinforcing sheet opposite the secondary cavities, in an amount sufficient to fill the cavity ncipale and secondary cavities, BR/ - unmold the piece. / P