| 摘要 |
Base component (11), or a complementary upper body component, of a trailer/caravan is manufactured using resin transfer moulding (RTM). Fibre reinforcing materials, sandwich constructions including foam cores, metal reinforcements in the towbar area, etc are located within the mould cavity defined between male and female mould shells (10a, 10b) prior to injection of the resin matrix and curing thereof. The mould parts may be machined with a CNC router to provide channels (91) which will become strengthening members and may be made of stacked sheets of medium density fibreboard (MDF, see 99). |
