| 摘要 |
<p>A method of manufacturing a composite sandwich structure, the method including a preform assembly method. The method includes providing a preform (8) having at least two sheets (12, 14) connected by a plurality of extensible threads (16), and affixing to the outer face of each sheet (12, 14), a face sheet (18, 22). The adhesion is by a film adhesive (20, 24) placed over the respective sheets (12, 14), and the preform (8) is subjected to pressure and/or heat to set the film adhesive (20, 24).The method further includes a method of moulding a composite sandwich structure, the method including placing a preform (8) in a mould (30), creating pressure differentials between respective chambers (40, 42) within the mould (30), feeding a resinous compound into the mould (30), and allowing the resinous compound to set and cure. The invention also provides composite sandwich structures made in accordance with the methods.</p> |
