Manufacturing process of optical cable

Abstract

The invention discloses a manufacturing process of an optical cable. The manufacturing process comprises the following steps: 1) winding a water-blocking tape on the outer side of a cable core at intervals; (2) enabling the cable core to enter a paste coating device to be coated with ointment; (3) enabling the cable core to enter an extrusion molding device, and processing an outer sheath on the outer side of the cable core; and 4) cooling and drying the outer sheath, and then spraying an identification mark at the corresponding position of the outer sheath and the dry-type waterproof jacket. According to the application, the water-blocking tapes are arranged at intervals before the cable core is coated with the ointment, so that after the cable core is coated with the ointment, the sections where the water-blocking tapes are located basically have no ointment. During actual construction, the optical cable is cut off at the identification mark, at the moment, no ointment flows out of the section of the optical cable between the cable core and the outer sheath, and the optical cable is more convenient to construct.

Description

technical field [0001] The invention relates to the field of optical cables, in particular to a manufacturing process of optical cables. Background technique [0002] The water seepage performance of the optical cable is one of the important factors to ensure the life of the optical cable, and it is an indicator that the optical cable manufacturers and operators are very concerned about. Because once the optical cable seeps into water, in a complex and changeable environment, the moisture and moisture outside the optical cable will penetrate and migrate to the optical cable, which will cause reversible or irreversible hydrogen damage to the optical fiber, affecting the life of the optical fiber and the stability of long-term transmission. [0003] In existing optical cables, the gap between the outer sheath and the cable core is mostly filled with ointment for water blocking. This structural form causes more ointment to flow out during construction, and the ointment is diff...

AI Technical Summary

Problems solved by technology

This structure will cause more ointment to flow out during construction, and the ointment is difficult to wipe off, which brings certain inconvenience to the construction and also pollutes the environment.

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