| 摘要 |
The insert part makes possible a liquid-tight seal between the plastic line liner (3) of a channel and a laminate (5) impregnated with polyester resin, which hardens when heated. The insert part has a compact layer (7) of the same plastic material as the liner. A porous layer (8) is stuck onto the compact layer. The compact layer can be connected to the liner and the porous layer to the laminate, which is usually achieved by the application of heat by means of resistance heating wires (9) in the compact layer, connected to an electricity supply. |
