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Optical cable preparation method capable of reducing optical cable wind pressure and optical cable

A technology of optical cable and wind pressure, applied in the field of optical cable preparation, can solve the problem of high cost

Pending Publication Date: 2021-04-30
四川天府江东科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually ADSS is round and uses aramid yarn as reinforcement. The tension that ADSS can withstand is directly related to the amount of aramid yarn used. The more the amount is used, the higher the cost.

Method used

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  • Optical cable preparation method capable of reducing optical cable wind pressure and optical cable
  • Optical cable preparation method capable of reducing optical cable wind pressure and optical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An optical cable preparation method that can reduce the wind pressure of the optical cable, the optical cable preparation method includes an extrusion step of obtaining a sheath 1 outside the cable core by extrusion; it also includes the use of a coolant contained in a cooling tank after the extrusion step , the cooling step of cooling the formed sheath 1, in the cooling step, using the waste heat of the sheath 1 to form and attach air bubbles to the local surface of the sheath 1, under the action of the air bubbles, This allows the sheath 1 to cool while passing through the cooling slot.

[0028] For the preparation of optical cables, the prepared cable core passes through the extrusion head of the extruder, and an annular extrusion hole is set on the periphery of the cable core, through which the cable core is extruded to the side of the cable core to form an optical cable The high-temperature melting material of the sheath 1, the more common materials are polyethylen...

Embodiment 2

[0031] This embodiment is further introduced on the basis of Embodiment 1: as mentioned above, in the process of the existence of air bubbles, the cooling that actually occurs on the surface of the sheath 1 is non-uniform cooling, so in order to improve the production efficiency of the optical cable, it is set as : After the preliminary cooling is completed in the presence of air bubbles, the air bubbles are removed, so that the sheath 1 is further cooled to a rollable state. The above further cooling can be cooled by cooling water.

Embodiment 3

[0033] This embodiment is further introduced on the basis of Example 1: as one of the specific ways to obtain air bubbles, the air bubbles are obtained by raising the temperature of the coolant, after the sheath 1 enters the coolant , using the waste heat of the sheath 1 to obtain the air bubbles.

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PUM

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Abstract

The invention discloses an optical cable preparation method capable of reducing the optical cable wind pressure and an optical cable. The optical cable preparation method comprises an extrusion molding step of obtaining a sheath at the outer side of a cable core through extrusion molding; the method further comprises a cooling step of cooling the formed sheath by adopting a cooling agent contained in a cooling tank after the extrusion molding step; in the cooling step, bubbles are formed and attached to the local surface of the sheath by utilizing the waste heat of the sheath, and the sheath is cooled when passing through the cooling tank under the action of the bubbles. By adopting the method provided by the scheme, the optical cable capable of effectively reducing the wind pressure can be prepared, and the optical cable can be prepared by the provided method.

Description

technical field [0001] The invention relates to the technical field of optical cables, in particular to an optical cable preparation method capable of reducing the wind pressure of the optical cable and the optical cable. Background technique [0002] The full name of self-supporting optical cable is all-dielectric self-supporting optical cable, which means that the strengthening member of the optical cable itself can bear its own weight and external load. Taking ADSS (All Dielectric Self-Supporting) as an example, ADSS optical cable is also often called all-dielectric self-supporting optical cable. All-dielectric means that ADSS optical cable uses non-metallic all-dielectric materials, which have high mechanical strength and can withstand Influenced by the strong electric environment, it can be erected on the diameter of the pole tower and iron tower in a self-supporting manner, without the need for hanging wires. Usually ADSS is round and uses aramid yarn as reinforcement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/4486
Inventor 唐海燕朱卫华魏成东任浩
Owner 四川天府江东科技有限公司
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