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Continuous production method of aramid fiber enhanced cable core

An optical cable strengthening core and aramid fiber technology, which is applied in the field of ring optical cables, can solve the problems of mold blocking, resource waste, cost increase, etc., and achieve the effects of reducing production costs, improving production efficiency, and preventing mold blocking.

Inactive Publication Date: 2015-02-04
HAIAN INST OF HIGH TECH RES NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many manufacturers producing aramid fiber optic cable reinforcement cores on the market, and the technology is gradually becoming mature. The pultrusion speed has been greatly improved, but the problems that follow have gradually emerged. Long-term rapid pultrusion It is easy to cause the phenomenon of mold blocking
The breakage in the production process of the reinforced core of the aramid fiber cable caused by mold blocking has resulted in a decrease in product qualification rate, waste of resources, and increase in cost.

Method used

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  • Continuous production method of aramid fiber enhanced cable core
  • Continuous production method of aramid fiber enhanced cable core

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The invention provides a method for continuous production of aramid fiber-reinforced composite fiber optic cable reinforcement cores. The glue solution is in parts by weight: 2 parts of medium-temperature curing agent, 1.5 parts of high-temperature curing agent, and 1.5 parts of release agent are added for every 100 parts of unsaturated resin. Parts, 0.6 parts of silane coupling agent, 4 parts of filler.

[0022] The continuous production method of the aramid fiber reinforced composite fiber optic cable reinforcing core comprises the following steps:

[0023] The aramid fiber yarn 1 is preheated through the oven 2 heated to 80°C to soften the fiber and increase the degree of impregnation.

[0024] Pass the preheated aramid fiber yarn through the trough filled with the above-mentioned glue solution, and go through the glue wiping process in the trough to completely infiltrate the aramid fiber yarn.

[0025] The fully impregnated aramid fiber yarn is passed through the m...

Embodiment 2

[0030] The glue solution is in parts by weight: for every 100 parts of unsaturated resin, 1.5 parts of medium-temperature curing agent, 1.0 part of high-temperature curing agent, 1.0 part of release agent, 0.3 part of silane coupling agent and 3.0 parts of filler are added. The rest of the production steps or process conditions are the same.

Embodiment 3

[0032] The glue solution in parts by weight is: for every 100 parts of unsaturated resin, add 2.5 parts of medium temperature curing agent, 2.0 parts of high temperature curing agent, 2.0 parts of release agent, 0.8 parts of silane coupling agent, and 5.0 parts of filler. The rest of the production steps or process conditions are the same.

[0033] When the data read by the tension sensor system shows that the tension increases, it means that the mold will be blocked and the fiber optic cable reinforcement core will be broken. At this time, the inner wall of the mold needs to be cleaned by solvent method or abrasive method, that is, the solvent or abrasive liquid is evenly coated on the mold. Clean the inner wall of the mold to keep it smooth on the aramid fiber yarn that has been glued before, so as to reduce the tensile tension and prevent the fracture of the aramid fiber optic cable reinforcement core, so as to achieve continuous production of the aramid fiber optic cable re...

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Abstract

The invention discloses a continuous production method of an aramid fiber enhanced composite material for preparing cable cores, and belongs to the technical field of optical fibers. The production method comprises the following steps: pre-heating aramid fibers, making the aramid fibers go through liquid rubber, which is prepared by evenly mixing unsaturated resin, a curing agent, a demoulding agent, a filling material, and a coupling agent, then moulding and curing the aramid fibers in a mould, subjecting the moulded aramid fibers to a post-curing treatment, making the aramid fibers go through a tensile force sensor system, pulling the aramid fibers by a press roller device, and finally reeling the finished product. The provided continuous production method has the advantages that the mould will not be obstructed during the production process, thus the continuous long-time production can be achieved, the production cost is reduced, the production efficiency is improved, and the long-distance enhanced core is benefit for the cable production.

Description

technical field [0001] The invention relates to the technical field of ring optical cables, in particular to a continuous production method for aramid fiber optical cable reinforcing cores. Background technique [0002] With the development of optical communication, fiber-to-the-home (FTTH) has become more and more popular, and the application of fiber optic cable reinforcement core has also been promoted more and more. [0003] At present, there are many manufacturers producing aramid fiber optic cable reinforcement cores on the market, and the technology is gradually becoming mature. The pultrusion speed has been greatly improved, but the problems that follow have gradually emerged. Long-term rapid pultrusion It is easy to cause the phenomenon of mold blocking. The fracture in the production process of the reinforced core of the aramid fiber cable caused by mold blocking has resulted in a decrease in product qualification rate, a waste of resources, and an increase in cos...

Claims

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Application Information

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IPC IPC(8): B29C70/52
CPCB29C70/52B29C70/525B29C70/521B29C2033/727
Inventor 张亚任华曹婷婷仇叶云
Owner HAIAN INST OF HIGH TECH RES NANJING UNIV
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