Optical cable with new structure and production method thereof

A new structure, optical cable technology, applied in fiber mechanical structure, light guide, optics, etc., can solve the problem of loose tube deformation, achieve the effect of improving performance, improving mechanical stretching and high and low temperature shrinkage performance, and ensuring consistency

Inactive Publication Date: 2020-05-01
NANJING WASIN FUJIKURA OPTICAL COMM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems existing in the prior art, the present invention provides a new structural optical cable and a production method that can effectively imp

Method used

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  • Optical cable with new structure and production method thereof
  • Optical cable with new structure and production method thereof

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Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the present embodiment provides a new structural optical cable, including a loose tube 1, an optical fiber 2, a strength member 3, a PP film 4, a water blocking layer 5 and an outer sheath 6, and the strength member 3 is located at the center of the optical cable , five loose tubes 1 surround the reinforcement 3, the water blocking cable paste 10 is filled between the loose tube 1 and the reinforcement 3, six optical fibers 2 are embedded in the loose tube 1, and the loose tube 1 is filled with The fiber paste 7, the fiber paste 7 wraps the optical fiber 2, and the fiber paste or 7 can seal and waterproof, resist stress and buffer, protect the optical fiber 2, improve the stability of the transmission performance of the optical fiber 2 and the service life of the optical cable.

[0033] In this implementation, the fiber paste can also be replaced by other water-blocking materials.

[0034] The periphery of the five loose tubes 1 is wrapped with

Embodiment 2

[0050] Such as figure 2 As shown, a new structure optical cable of this embodiment, the structure and production method are basically the same as the embodiment, the difference is that a water blocking yarn 11 is arranged between the loose tube 1 and the reinforcing member 3, and the water blocking yarn 11 is provided with two, and one is vertically arranged, and the other is wrapped around and arranged.

[0051] The water-blocking layer on the periphery of the cable core also uses water-blocking yarn 11 to replace the water-blocking cable paste.

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Abstract

The invention discloses an optical cable with a new structure and a production method thereof, and belongs to the technical field of optical cables. The optical cable with the new structure comprisesa reinforcement piece positioned in the centre of the optical cable, a plurality of loose sleeves which surround the periphery of the reinforcement piece and are internally embedded with a plurality of optical fibers, and an outer sheath positioned on the outer layer of the optical cable, and is characterized in that the gap between the plurality of the loose sleeves and the outer sheath is filledwith a PP thin film; and the loose sleeves and the reinforcement piece are tightly combined together through the PP thin film. In a layering stranding process of the production method for the opticalcable with the new structure, a layer of the PP thin film is extruded through a plastic extruding machine; the PP thin film is compressed to wrap the plurality of the loose sleeves by utilizing a compressing mould and fills the gap between adjacent two loose sleeves; after being cooled, the PP thin film is fixed on the periphery of the loose sleeves to form a cable core; and the optical cable with the new structure disclosed by the invention can effectively prevent the sleeves from deforming so as to keep the optical cable structure stable.

Description

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Claims

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Application Information

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Owner NANJING WASIN FUJIKURA OPTICAL COMM LTD
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