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A production process of cables for high-speed trains

A production process, high-speed train technology, applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of limited space for cable performance improvement, increased difficulty in production quality control, breakage and even fire, and achieves easy production process The effect of mastering, good external isolation performance, reducing production cost and labor intensity

Active Publication Date: 2017-12-22
HEBEI RUIGUANG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with the multiple speed-ups of rail traffic, rail traffic such as trains has also been greatly increased according to the operating speed. At present, the speed of trains can reach 300-500 kilometers per hour. Although such a speed can greatly improve the speed of rail traffic The operating efficiency is convenient for cargo transportation and people's daily travel, but at the same time it also puts forward new requirements for train cables. Due to the continuous increase of train speed, when the train is running, the train cables receive various impacts and irregularities. Alternating vibration force, operating temperature, foreign object erosion and self-structural aging and other conditions also increase. With the increase of impact force, vibration force, operating temperature and other conditions, at least the operating environment of the cable is more severe, which is very easy to cause cable damage. Insulation failure, breakage and even fires occur, so traditional cables can no longer effectively meet the needs of high-speed trains. In order to cope with this situation, the current common practice is to improve the traditional cable production process by increasing the cable insulation However, in practical applications, it is found that on the one hand, this approach increases the cost of cable production and increases the difficulty of production quality control. On the other hand, the room for improving cable performance is also very limited and cannot be effective. To meet the needs of actual use, in view of this situation, it is urgent to develop a new production process for high-speed train cables to meet the needs of actual use

Method used

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  • A production process of cables for high-speed trains

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Effect test

Embodiment 1

[0024] according to figure 1 Shown, a kind of production technology of high-speed train cable comprises the following steps:

[0025] The first step: prepare the wire core, layer and twist multiple tinned thin copper wires 1 with the same diameter and resistivity in the same direction to form an independent wire core, and the number of layered layers is 5 layers , the number of times of twisting and weaving is 6 for every 5 cm of length;

[0026] The second step: wrapping the wire core, sintering and winding the FWCR coating 2 on the outer surface of the prepared and shaped wire core, and covering at least one layer of aramid yarn wrapping 3 on the outer surface of the FWCR coating 2, and the aramid yarn 3 The thickness of the cladding layer is 2 mm, and the FWCR coating includes a corona-resistant polyimide layer 21 and a perfluorinated ethylene propylene adhesive 22, wherein the perfluoroethylene propylene adhesive 22 is coated on the corona polyimide layer 21 outer surfac...

Embodiment 2

[0037] according to figure 1 Shown, a kind of production technology of high-speed train cable comprises the following steps:

[0038] The first step: prepare the wire core, layer a plurality of tinned thin copper wires 1 with the same diameter and resistivity, twist them in the same direction and perform multiple twists to form an independent wire core, and the number of layered layers is 6 layers , the number of times of twisting and weaving is 10 times per 5 cm length;

[0039] The second step: wrapping the wire core, sintering and winding the FWCR coating 2 on the outer surface of the prepared and shaped wire core, and covering at least one layer of aramid yarn wrapping 3 on the outer surface of the FWCR coating 2, and the aramid yarn 3 The thickness of the cladding layer is 1 mm, and the FWCR coating includes a corona-resistant polyimide layer 21 and a perfluoroethylene propylene adhesive 22, wherein the perfluoroethylene propylene adhesive 22 is coated on the corona poly...

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Abstract

The invention discloses a production process of a cable for high-speed trains, comprising six steps of preparing a wire core, coating the wire core, coating an isolation layer, setting a tensile rope, coating an insulating layer, and modifying the insulating layer. The cable harness for high-speed trains produced by the production process of the present invention has simple and easy-to-master production techniques, significantly lower requirements on production conditions than traditional cables for high-speed trains, and the production-related parameters are accurate and easy to grasp, thereby helping to improve the production process. Automation and improve the accuracy of product quality inspection. At the same time, the structure of the conductive core is tight, and the structural strength and toughness are significantly improved compared with the traditional high-speed train cables, thus greatly improving the tensile, impact and vibration resistance of the cable. It has good external isolation performance, high temperature resistance, corrosion resistance and flame retardancy, which can effectively improve the resistance of the cable to external complex electromagnetic interference, improve the protection ability of the cable itself, and help to improve the safety and stability of the cable operation .

Description

technical field [0001] The invention relates to the technical field of cable production, in particular to a production process of cables for high-speed trains. Background technique [0002] At present, with the multiple speed-ups of rail traffic, rail traffic such as trains has also been greatly increased according to the operating speed. At present, the speed of trains can reach 300-500 kilometers per hour. Although such a speed can greatly improve the speed of rail traffic The operating efficiency is convenient for cargo transportation and people's daily travel, but at the same time it also puts forward new requirements for train cables. Due to the continuous increase of train speed, when the train is running, the train cables receive various impacts and irregularities. Alternating vibration force, operating temperature, foreign object erosion and self-structural aging and other conditions also increase. With the increase of impact force, vibration force, operating tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B13/02
Inventor 郑学园郑广朋李净涛王少华王艳雄
Owner HEBEI RUIGUANG CABLE