| 摘要 |
<p>A method of making a composite panel from two substantially similar panel skins (40, 42) and an edging (48), is disclosed. The first panel skin (40), is made in a mould from a first composition comprising a thermosetting resin, a catalyst for the thermosetting resin and inorganic filler particles. On this layer is placed a layer of a fibrous reinforcing material wetted with a second composition comprising a thermosetting resin and a catalyst for the thermosetting resin. Before the thermosetting resin in the second composition has set, the edging (48) is placed all around the edge of the first panel skin (40). The thermosetting resin in the second composition then sets to form a combination of the first panel skin (40) with the edging (48) attached thereto. The second panel skin (42) is then formed in the same manner as the first panel skin (40) and before the thermosetting resin in the second composition is set, the combination of the first panel skin (40) and the edging (48) is placed on the second panel skin (42) with the edging (48) in contact with the second panel skin (42). The thermosetting resin is then allowed to set to form an intermediate panel from the second panel skin (42) and the combination. The intermediate panel includes a cavity defined by the first and second panel skins (40, 42) separated by the edging (48), and this cavity is filled with a polyurethane foam (50) to form the composite panel.</p> |
