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External force resistant multi-waveguide optical cable

A waveguide light, anti-external force technology, used in communication cables, cables, circuits, etc., can solve the problems of adverse effects on the final performance of auxiliary products, uneven distribution of bubbles in products, affecting mechanical properties of products, etc., to ensure roundness, The effect of low density and moderate hardness

Active Publication Date: 2014-08-06
JIANGSU HENGTONG WIRE & CABLE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disclosed as CN101382626A is a kind of invention patent of "optical cable foaming filling rope granular material and production method thereof", the raw material of filling rope granular material in this patented technology has low-density polyethylene, high-density polyethylene, polypropylene, polyethylene wax, Stearic acid, calcium stearate and tetraerythritol fat, etc., have many components and large difference in proportion, which is troublesome to weigh, difficult to disperse, and difficult to mix evenly; and because the unit price of each component is relatively expensive, the manufacturing cost is still Quite stressful; in addition, the addition and use of various additives is likely to have a negative impact on the final performance of the product, resulting in uneven distribution of air bubbles inside the product, and will leave small molecular residues in the product, affecting the mechanical properties of the product

Method used

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  • External force resistant multi-waveguide optical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: A multi-waveguide optical cable resistant to external force, the multi-waveguide optical cable includes several optical fiber units 3 composed of loose tubes 1 and optical fibers 2 located in the loose tube 1, a central strength member 4 and several A filling rope 5, a sheath layer 6 covers the optical fiber unit, the central strength member 4 and several filling ropes 5; the filling rope 5 is a foamed filling rope obtained by physical foaming of the following components by weight:

[0030] 50 parts of semi-finished foam material,

[0031] High-density polyethylene (A) 50 parts,

[0032] 1 part of nucleating masterbatch;

[0033] Described foam material semi-finished product is made up of the component of following parts by weight:

[0034] 30 parts of low-density polyethylene with a melt flow rate of 0.03~0.09 g / 10min,

[0035] 40 parts of high-density polyethylene (A) with a melt flow rate of 1.8~3.2 g / 10min,

[0036] 30 parts of high-density polyeth...

Embodiment 2

[0046]Embodiment 2: A multi-waveguide optical cable resistant to external force, the multi-waveguide optical cable includes several optical fiber units 3 composed of loose tubes 1 and optical fibers 2 located in the loose tube 1, a central strength member 4 and several A filling rope 5, a sheath layer 6 covers the optical fiber unit, the central strength member 4 and several filling ropes 5; the filling rope 5 is a foamed filling rope obtained by physical foaming of the following components by weight:

[0047] 40 parts of semi-finished foam material,

[0048] 60 parts of high-density polyethylene (A),

[0049] 1 part of nucleating masterbatch;

[0050] Described foam material semi-finished product is made up of the component of following parts by weight:

[0051] 40 parts of low-density polyethylene with a melt index of 0.03~0.09,

[0052] 30 parts of high-density polyethylene (A) with a melt index of 1.8~3.2,

[0053] 30 parts of high-density polyethylene (B) with a melt ...

Embodiment 3

[0063] Embodiment 3: A multi-waveguide optical cable resistant to external force, the multi-waveguide optical cable includes several optical fiber units 3 composed of a loose tube 1 and an optical fiber 2 located in the loose tube 1, a central strength member 4 and several A filling rope 5, a sheath layer 6 covers the optical fiber unit, the central strength member 4 and several filling ropes 5; the filling rope 5 is a foamed filling rope obtained by physical foaming of the following components by weight:

[0064] 60 parts of semi-finished foam material,

[0065] High-density polyethylene (A) 40 parts,

[0066] 1 part of nucleating masterbatch;

[0067] Described foam material semi-finished product is made up of the component of following parts by weight:

[0068] 30 parts of low-density polyethylene with a melt index of 0.03~0.09,

[0069] 30 parts of high-density polyethylene (A) with a melt index of 1.8~3.2,

[0070] 40 parts of high-density polyethylene (B) with a melt...

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Abstract

The invention discloses an external force resistant multi-waveguide optical cable and a manufacturing method thereof. A filling rope of the external force resistant multi-waveguide optical cable is obtained by physically foaming the following components in parts by weight: 40-60 parts of foaming material semi-finished products, 40-60 parts of high-density polyethylene (A), and 1 part of nucleating master batch, wherein the foaming material semi-finished product comprises the following components in parts by weight: 30-40 parts of low-density polyethylene with a melt flow rate of 0.03-0.09g / 10min, 30-40 parts of high-density polyethylene (A) with a melt flow rate of1.8-3.2g / 10min, 30-50 parts of high-density polyethylene (B) with a melt flow rate of 5-9g / 10min, and 15-20 parts of micron order superfine calcium carbonate. The external force resistant multi-waveguide optical cable reduces the adverse effects of various auxiliary agents on a final property of plastic, the foaming filling rope body manufactured by grains serves as an inner buried layer and can be tightly combined with an outer cladding of a plastic film, and tensile strength and side pressure resisting strength of the filling rope are improved.

Description

technical field [0001] The invention relates to an optical cable and a manufacturing method thereof, in particular to an external force-resistant multi-waveguide optical cable and a manufacturing method thereof. Background technique [0002] Multi-waveguide optical cables that are resistant to external forces often require filler ropes. Optical cable filler ropes are a component that fills the vacancy in the cable core during the stranding process to keep it round. Most of the existing filling ropes for optical cables are solid ropes extruded from high-density insulating materials. Due to their high hardness, when they are co-wound with other components to form a cable core, they will be subjected to a large extrusion force in the machine, which limits high-speed production. And it is easy to squeeze other components such as the loose tube of the optical fiber unit, deform the cable core, and affect the roundness of the optical cable. Secondly, the raw material consumption ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44H01B11/22
Inventor 孙玉萍孙春权施展王小菲李凤彪
Owner JIANGSU HENGTONG WIRE & CABLE TECH
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