Process for producing a composite part by compression molding

摘要

A process for producing a composite part comprising: (i) putting short reinforcing fibers into a transfer mold; (ii) impregnation said short reinforcing fibers with a low viscosity resin; (iii) maintaining said short reinforcing fibers impregnated with by said resin in said transfer mold at a first temperature T1 known as the gelation temperature until a pasty preform is obtained whose viscosity is suitable for compression molding; (iv) removing said pasty preform from the mold; (v) placing said pasty preform in a compression mold brought to a second temperature T2, known as the compression temperature, wherein T2>T1; (vi) compression molding said pasty preform; and (vii) polymerizing said pasty preform at at least a third temperature T3 wherein T3>/=T2.