| 摘要 |
Pipeline or passageway is lined by applying a lining of resin absorbent material which is impregnated with a curable resin containing a radiation initiating catalyst, and effecting or initiating the cure of the resin with the lining in position by light radiation, the resin and fibrous material being selected so that the resin and fibres have similar refractive indexes, and the light being selected to give good penetration of the light radiation into the resin and the felt. - Lining has a membrane on its inner surface which is transparent to the curing light radiation. The felt is of bright acrylic fibres, and the resin is pref. ''Palatal 55-54'' RTM BASF. The lining is held in position by clean water and the radiation lamps are immersed in the water. |
