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Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus

A technology of armored optical cable and armor layer, which is applied in the field of ointment injection device, can solve the problems of large wear of pneumatic pressure filling pump, easy carbonization of colloid, high price, etc., to reduce material and production costs, strong wear resistance and Corrosion resistance, the effect of precise control of the amount of paste

Active Publication Date: 2009-05-27
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The existing problems of the armored optical cable with the above-mentioned water-blocking structure are: 1. The price of the water-expandable ointment and hot melt is high, which increases the production cost of the optical cable, and the water-blocking powder in the ointment is harmful to pneumatic pressure filling. The wear of the pump is relatively large, which may easily cause wear and tear of the pump body pipeline, causing ointment leakage, thereby affecting the filling quality of the cable core ointment; It is very inconvenient to clean the pipeline blockage, if the blockage is serious, it will affect the processing efficiency of the cable sheath

Method used

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  • Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus
  • Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus
  • Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus

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Embodiment Construction

[0014] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Examples of layer-stranded waterproof armored optical cables figure 1 , 2 As shown, it includes a layer-stranded cable core, an armor layer 10 and an outer sheath 13. The layer-stranded cable core is formed by twisting a plurality of sleeves 8 with optical fibers and an intermediate reinforcing core 9. There are usually 5 to 12 casing tubes for the optical fiber, and the space between the tubes in the layer-stranded cable core is filled with waterproof ointment 11, and the layer-stranded cable core is covered with an armor layer 10, and the armor layer consists of The cable core is composed of steel strip or aluminum strip, and the inner surface of the armor layer is coated with a water-swellable ointment layer 12, which is to inject a layer of 1.5-2mm thick water-swellable ointment layer on the inner surface of the metal strip and then It is made of met...

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Abstract

A armored optical cable of water proof type is featured as packing water proof oleamen in layer stranded cable core, coating a layer of oleamen being able to be expanded when it is contacted with water on internal surface of armored layer and cladding an external protective sheath on external of armored layer. The device used for injecting and coating said oleamen is also disclosed.

Description

technical field [0001] The invention relates to a waterproof armored optical cable, in particular to a water-blocking structure of a stranded waterproof armored optical cable and an ointment injection device used in the optical cable sheathing equipment. Background technique [0002] The mechanism of the existing layer-stranded waterproof armored optical cable mainly includes a cable core, an armor layer and an outer sheath, and water-blocking ointment is filled between the armor layer and the cable core. In the water-blocking structure of the optical cable, in order to protect the optical fiber in the cable from the corrosion of water, the water-blocking process requirements are very strict during the manufacturing process, especially the water-blocking requirements between the armor layer and the cable core. Usually, the cable core or central reinforcing core is filled with ointment first. The filled ointment is a water-swellable ointment containing water-blocking powder, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44B05C5/02B05B7/24
CPCY02P70/10
Inventor 黄杰周珍福黄财明余学运
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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