METHOD AND DEVICE FOR PRODUCING A COMPOSITE MOULDED PART FROM FIBRE-REINFORCED PLASTIC

摘要

The invention relates to a method for producing a composite molded part from fiber-reinforced plastic comprising the following steps: a) providing a pre-preg semifinished product (1) comprising fibers (12) pre-impregnated with a matrix material (10); b) encasing the pre-preg semifinished product (1) with a flexible sheet material (2; 2'), which has a gas-permeable membrane (20) that nevertheless holds back the matrix material and at least one inner planar gas-conducting device (22); c) encasing the inner arrangement (3) formed by the pre-preg semifinished product (1) and the sheet material (2, 2') with a first gas-tight casing (4; 4'); d) positioning the inner arrangement (3) provided with the first gas-tight casing (4; 4') on a mold surface (60) of a first mold (6); e) encasing the inner arrangement (3) provided with the first gas-tight casing (4; 4') and the mold surface (60) having a second gas-tight casing (7); f) applying a first vacuum to the inner planar gas-conducting device (22) and the inside of the first gas-tight casing (4; 4'); g) heating the entire arrangement for a first specified time under the influence of a first specified temperature; h) applying a second vacuum to the inside of the second gas-tight casing (7); and i) heating the entire arrangement for a second specified time under the influence of a second specified temperature.