| 摘要 |
A heat-formation method for creating a composite, layered structural panel which possesses at least one selected area of elevated densification and reinforcement including (a) providing a pre-heat-formed, layered expanse of compressible, heat-formable, composite sheet material having a reception face and a starter thickness T1, (b) establishing a pre-formation assembly of materials by placing on a selected area of the reception face an already heat-formed and densified island of essentially the same layered composite sheet material which defines the expanse, with such island having a thickness T2 which is less than T1, (c) employing heat and pressure, consolidating and compressing the expanse and the island to form, in an embedment region in the panel, an embedded-island, finished panel having an allover uniform thickness T3 which is less than T1, and wherein the region associated with the island has an embedment thickness T4 which is equal to or less than T2, and an effective density which is elevated in relation to that of other, non-embedment regions in the panel.
|
