Patent ID: 9662854
Date: 2017-05-30
CPC Classifications: B29C,B29K,B29L,B32B,Y10T

Claim:
1. A method for preventing the surface defects in a sandwich component ( 10 ) having two fibre- reinforced thermoplastic outer layers ( 3 ) and a honeycomb core layer ( 4 ) arranged therebetween, wherein the outer layers are connected to the honeycomb core layer ( 4 ) by a thermoplastic material, wherein at least one side of the sandwich component ( 10 ) has a decorative layer ( 1 , 1 ′), which is arranged on at least one of the outer layers ( 3 ), wherein the sandwich component ( 10 ) furthermore comprises at least one foam layer ( 2 ) made from a foamed thermoplastic material, which is arranged between at least one of the outer layers ( 3 ) and the decorative layer ( 1 , 1 ′), wherein the at least one foam layer ( 2 ) is connected to at least one of the outer layers ( 3 ) and the decorative layer ( 1 , 1 ′), and wherein edges of the sandwich component ( 10 ) are sealed, or are closed outwardly, the method comprising the steps: a) heating a sandwich arrangement, which comprises at least the honeycomb core layer ( b) arranging at least one decorative layer ( c) transferring the heated sandwich semi-finished product having the at least one foam layer ( d) compression moulding the heated sandwich semi-finished product having the at least one foam layer ( e) de-moulding the sandwich component (