| 摘要 |
A process for producing optical cable having a central strength member (1) of non-conducting material surrounded by a grooved core (4), in which a layer (3) of thermoplastic material softenable by dielectric heating is interposed between the strength member and the core, and the assembly is passed through a dielectric heating unit and twisted while the intermediate layer is in a softened state to cause the grooves to take up a helical or periodically reversing helical path, subsequent cooling leaving the grooves extending in a helical manner about the core axis. <IMAGE> |
