| 摘要 |
A method and device (100) for manufacturing a sandwich structure (10) comprising at least one foam layer (12; 12a, 12b) of a first thermoplastic comprising a chemical blowing agent and two fibre- reinforced cover layers (20, 22) of a second thermoplastic. The decomposition temperature of the chemical blowing agent is higher than the melting point or range of the first thermoplastic. The method comprises a series of steps performed on a starting structure (40) including heating under pressure in order to cause decomposition of the blowing agent, cooling, foaming and further cooling in contact with the press tools. |
