Foaming filling method for optical cable
A foam filling and optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of polluting production equipment and working environment, lack of market competitiveness, and high cost, so as to improve the performance of anti-seepage and avoid performance instability , to ensure the effect of stability
Pending Publication Date: 2022-04-08
TONGDING INTERCONNECTION INFORMATION CO LTD
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Problems solved by technology
In the existing optical cable structure, water blocking is usually installed in the gap between the armored metal tapes. The water blocking is usually filled with ointment or dry water blocking. The cost of dry water blocking is higher than that of ointment filling, and the overall size of the optical cable is also It will be too large, resulting in higher costs and no market competitiveness. This type of optical cable is generally customized for customer needs; the ointment-filled type has a certain risk of water permeability, and during the manufacturing process, the ointment will pollute the production equipment and equipment. The working environment, and the water seepage performance of the optical cable cannot be fully guaranteed
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[0029] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0030] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0031] The present invention proposes a foaming filling method for optical cables, and at the same time improves the water resistance performance of the central reinforcement cushion, cable core filling, and armored metal tape gap filling. The specific methods include the following:
[0032] For the central strength member of the optical cable, the present invention adopts the structure of the central strength member pad, and the structure comprises a central strength member, a foamed cushion layer and an adhesive, wherein the strength member is phosphating steel wire or GFRP, and the adhesive is EVA, EVA is evenly sprayed on the outside of the reinforcement by spraying, and is cooled an...
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The invention provides a foaming filling method for an optical cable. A foaming cushion layer is arranged on a central reinforcing part of the optical cable; s2, carrying out foaming filling on gaps of the cable core of the optical cable; and S3, carrying out foaming filling on gaps of the armored metal tape of the optical cable. According to the invention, the water-blocking performance of the central reinforcement cushion layer, the cable core filling layer and the armored metal band gap filling layer is improved at the same time, so that the water-seepage-proof performance of the optical cable is improved, and the stability of the water-seepage-proof performance is ensured.
Description
technical field [0001] The invention belongs to the technical field of optical cables, in particular to a foam filling method for optical cables. Background technique [0002] In recent years, the rapid development of communication technology has put forward higher and higher requirements for the performance and quality of cables for transmitting communication signals, especially optical cables. For optical cables, especially outdoors, water seepage is a major problem it faces. In the existing optical cable structure, water blocking is usually installed in the gap between the armored metal tapes. The water blocking is usually filled with ointment or dry water blocking. The cost of dry water blocking is higher than that of ointment filling, and the overall size of the optical cable is also It will be too large, resulting in higher costs and no market competitiveness. This type of optical cable is generally customized for customer needs; the ointment-filled type has a certain...
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IPC IPC(8): G02B6/44
Inventor 沈小平李文善李忠明周亚平邱雪良皋健周建新黄清徐杰王领郑松亮
Owner TONGDING INTERCONNECTION INFORMATION CO LTD