Production process of cable for high-speed train

A technology for high-speed trains and production processes, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve problems such as limited space for cable performance improvement, increased production quality control difficulties, fractures and even fires, etc. The effect of mastering, good external isolation performance, reducing production cost and labor intensity

Active Publication Date: 2015-06-10
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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  • Production process of cable for high-speed train

Examples

Experimental program
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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 a plurality of tinned thin copper wires 1 with the same diameter and resistivity, and twist them in the same direction for multiple times 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 times per 5 cm 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 poly...

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 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 6 layers , the number of stranding times is 10 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 polyimide layer 21 outer surface, wherein the thickness of t...

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Abstract

The invention discloses a production process of a cable for a high-speed train. The process comprises the steps of preparing a cable core; wrapping the cable core; wrapping an isolation layer; arranging a tensile rope; wrapping an insulating layer; modifying the insulating layer. According to the cable produced by the production process for the high-speed train, the production process is simple and easily controlled, the requirements on the production is obviously less than those of the requirements on traditional production of the cable for the high-speed train, production-related parameters can be accurately and easily mastered, and therefore, the production automation and the product quality inspection accuracy can be improved; meanwhile, the conductive cable core is of a tight structure, and the structure strength and toughness are obviously superior to those of the traditional cable for the highs-speed train, so that the tension resistance, impact resistance and vibration resistance of the cable can be greatly improved; in addition, the external isolating performance, high temperature resistance, corrosion resistance and flame retardant performance are improved; the external complex electromagnetic interference resistance of the cable is effectively improved, thus the protection capacity of the cable can be improved, and as a result, the safety and stability of the cable in operation can be improved.

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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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
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