The manufacture of fiber optic cable

Cable manufacturing process is generally divided into the following process:
1 optical selection: excellent transmission characteristics and selection of qualified fiber tension.
2 fiber staining: application of standards to identify the entire chromatogram, requiring high temperatures do not fade do not migrate.
3 second extrusion: selection of high elastic modulus and low linear expansion coefficient of plastic extruded tube into a certain size, the optical fiber moisture into the water and fill the gel, and finally placed a few days (not less than two days) .
4 strand fiber optic cable: the roots of good fiber extruded strands together with the strengthening of unit.
5 crowded cable outer sheath: the external layer of strands of fiber optic cable sheath.