Flame-retardant cable and preparation method therefor

A flame retardant cable and insulated wire core technology, used in cable/conductor manufacturing, insulating cables, insulating conductors/cables, etc. performance and other issues, to achieve the effects of high toughness, good protection, and easy operation

Active Publication Date: 2016-09-21
ANHUI AICS SCI & TECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the single flame retardant material, the cable will not only produce a lot of smoke and toxic gas during use, but also reduce the performance of the cable due to dehydration reaction, thus affecting the flame retardant temperature and flame retardant time of the cable, and it is difficult to achieve the effect of fire prevention and moisture resistance

Method used

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  • Flame-retardant cable and preparation method therefor

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 A flame retardant cable shown includes an insulated wire core group, a shielding layer 4, a reinforcement layer 3, a high temperature resistant layer 2 and a protective layer 1. The insulated wire core group has multiple groups, and each group consists of multiple insulated wire cores 5 twisted, each insulated core 5 is composed of a conductor 5.1 and a high-temperature insulating layer 5.2 wrapped outside the conductor 5.1, the shielding layer 4 is wound around the outer circumference of the insulated core group, and the reinforcing layer 3 is wrapped in the shielding layer 4 On the outer surface, the high temperature resistant layer 2 is arranged on the outer surface of the reinforced layer 3, and the protective layer 1 is covered on the outer surface of the reinforced layer 3; the high temperature insulating layer 5.2 is an ethylene-tetrafluoroethylene copolymer layer; the shielding layer 4 is made of Non-metallic shield made of polyolefin and carbon...

Embodiment 2

[0030] On the basis of Example 1, we also provide a preparation method for preparing the above-mentioned flame-retardant cable, which includes the following steps in turn:

[0031] (1) Wire-drawing and annealing the round metal wires to form conductors, dip-coat the conductors in insulating varnish first, then extrude a high-temperature insulating layer on the outside of the conductors to form an insulated core, and multiple insulated cores are twisted with each other to form a conductor. Insulated wire core layer;

[0032] (2) Wrap the shielding layer and the reinforcement layer in turn around the outer circumference of the insulated wire core layer;

[0033](3) Prepare high-temperature-resistant materials: first prepare the components according to the amount, and add the prepared mica particles, polyvinyl chloride resin powder, polyacrylic ester, silicone rubber, antioxidant, glass fiber and toughening agent to the mixer Stir in medium for 20-30 minutes, spray paraffin oil ...

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Abstract

The invention relates to the processing technical field of cables, and specifically to a flame-retardant cable. The flame-retardant cable comprises multiple insulating wire core groups, shielding layers, a reinforcement layer, a high-temperature-resistant layer and a protection layer, wherein each insulating wire core layer is formed by multiple insulating wire cores in a stranded manner; each insulating wire core comprises a conductor and a high-temperature insulating layer which coats the exterior of the corresponding conductor; each shielding layer is wound around the periphery of each insulating wire core layer; the peripheries of the shielding layers are packaged by the reinforcement layer; the high-temperature-resistant layer is arranged on the outer surface of the reinforcement layer; the outer surface of the reinforcement layer is coated with the protection layer; and each high-temperature insulating layer is an ethylene-tetrafluoroethylene copolymer layer. The invention also provides a preparation method for the flame-retardant cable. The prepared flame-retardant cable provided by the invention is simple to manufacture, convenient to operate, and relatively good in the fireproof and flame-retardant performance; and meanwhile, the cable is resistant to high temperature and bending, tensile, high in flexibility, and wearproof, and has a quite good protection effect on oxygen, high-energy radiation and harmful metal aging.

Description

technical field [0001] The invention relates to the technical field of cable processing, in particular to a flame-retardant cable and a preparation method thereof. Background technique [0002] At present, people's need for fast transmission of data and information, and their dependence on computers, word processors, teletype sensors and communication equipment have increased significantly and rapidly. The emergence of new technologies has made it possible to connect and network equipment in this area, leading to the comprehensive development of communication systems. The use of these systems has increased in specific areas such as high-rise buildings, ships, aircraft, trains, drilling platforms and mines. [0003] The insulating layer and the sheath layer of existing flame-retardant cables are generally made by mixing a single flame retardant with the cable material. Due to the single flame retardant material, the cable will not only produce a lot of smoke and toxic gas d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/28H01B7/29H01B7/295H01B13/00H01B13/02H01B13/06H01B13/14H01B13/22H01B13/26
CPCH01B7/17H01B7/18H01B7/28H01B7/29H01B7/295H01B13/00H01B13/02H01B13/065H01B13/14H01B13/148H01B13/22H01B13/2613
Inventor 瞿庆广骆垠旭王汉元王炳华李成林
Owner ANHUI AICS SCI & TECH GROUP
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