Hollow composite products and method for making same

摘要

A hollow composite product comprising over 20 % glass in the form of long fibres, the thickness of the product walls further ranging between about 1 and 10 mm. Also disclosed is a method for making the product, which consists in inserting in a mould (10) a preheated assembly (9) comprising in its core at least an inflatable pocket covered with at least a composite structure, the composite structure including at least a filler material in the form of long fibres and the preheated assembly including a material capable of creeping, and in inflating the inflatable pocket under pressure higher than 40 bar.