| 摘要 |
A cap 100 for forming seal around the end of a fastener in a structure such as an aircraft wing comprises a cap body 10 with a cavity 20. The cap body 10 includes a sealing material inlet 12 comprising an opening in the cap body 10 and three or more ridges 30 protruding from the cap body 10 into the cavity 20. Three or more channels 31 are formed between the ridges 30. In use the cap body 10 is installed over the end of the fastener so that the fastener is enclosed within the cavity 20 and contacted by the ridges 30. Sealing material is injected into the cavity via the sealing material inlet 12 so that the sealing material flows along the channels 31, fills the cavity, contacts the end of the fastener, and contacts the structure. The sealing material is cured to form the seal. The cap 100 may be used for protection against lightning strike. |
