Ultra-thin thermal shrinkage belt fastening optical cable structure and production method

Abstract

The invention discloses an ultra-thin thermal shrinkage belt fastening optical cable structure and a production method. The ultra-thin thermal shrinkage belt fastening optical cable structure comprises a central reinforcing part, an optical fiber, a plurality of loose sleeves, a PE (polyethylene) sheath, an ultra-thin thermal shrinkage belt and an armored layer, the central reinforcing part and the loose sleeves are stranded to form a cable core, the optical fiber penetrates the loose sleeves, the PE sheath wraps the outer surface of the cable core, and the ultra-thin thermal shrinkage belt and the armored layer sequentially wrap the cable core from inside to outside. After the loose sleeves are stranded, the ultra-thin thermal shrinkage belt is directly lapped and tightly hoops the cable core after thermal shrinkage, the optical cable structure is fastened, and the process problem of binding marks caused by yarn binding and stranding is solved as a yarn binding fastening mode is replaced.

Description

Technical field: [0001] The invention relates to an ultra-thin heat shrinkable tape fastening optical cable structure and a production method. Background technique: [0002] In the traditional method of using yarns to twist the fixed layer stranded cable core structure, the traditional yarns will heat shrink when heated, and the high temperature will increase the activity of the internal structure of the polymer material at the same time, so that the polymer coating material will be secondarily molded. The material of the loose tube becomes soft, which often causes the loose tube in the optical cable to be punctured and strangled, which causes the optical fiber to be stressed and affects the performance and service life of the optical cable. Summary of the invention: [0003] The present invention provides an ultra-thin heat-shrinkable tape wrapped around the surface of a cable core, and then the ultra-thin heat-shrinkable tape is heated, and the heat-shrinkable film shrinks and...

AI Technical Summary

Problems solved by technology

[0002] In the traditional way of using yarns to fix the stranded cable core structure, the traditional yarns will shrink when heated, and the high temperature will increase the activity of the internal structure of the polymer material at the same time, making the secondary plastic polymer coating material The material of the loose tube becomes soft, which often causes the loose tube in the optical cable to be punctured and scratches appear, which makes the optical fiber stressed and affects the performance and service life of the optical cable.

Images