A MOLDED AUTOMOTIVE STRUCTURAL MEMBER AND PROCESS FOR MAKING SAME

An automotive structural member (26) is made from a heated bottom layer (12) and upper layer (14) of a balanced weave of woven glass and polypropylene bonded to a core layer (10) of a honeycomb lattice made from polypropylene. The upper and lower layers are heated to provide a molten state to the po...

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Bibliographische Detailangaben
1. Verfasser:	HORTON, GREGORY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An automotive structural member (26) is made from a heated bottom layer (12) and upper layer (14) of a balanced weave of woven glass and polypropylene bonded to a core layer (10) of a honeycomb lattice made from polypropylene. The upper and lower layers are heated to provide a molten state to the polypropylene and the lower and upper layers are laid in a mold with the core layer. The mold is closed and a low pressure is applied to bond the lower and upper layers to the core layer. After cooling, the mold is then opened and the molded structural member (26) is then removed. La présente invention concerne un élément structural d'automobile (26) composé d'une couche inférieure (12) et d'une couche supérieure (14) chauffées de toile équilibrée en fibres de verre et en polypropylène tissées, collées sur une couche centrale (10) de maillage en nids d'abeilles à base de polypropylène. On chauffe les couches supérieure et inférieure de manière à les porter à fusion pour le polypropylène, puis on les applique dans un moule avec la couche centrale. On referme ensuite le moule et on applique une pression pour coller les couches supérieure et inférieure à la couche centrale. Après refroidissement, on ouvre le moule et on retire l'élément structural moulé (26).