Railway through earth line as well as preparation device and preparation method thereof

A technology for railways to penetrate ground wires and passages. It is applied in the direction of circuits, cable/conductor manufacturing, and conductors. It can solve problems such as energy consumption, cable core performance impact, and complexity, and achieve overall height reduction, reliable bonding, and sheath crystal phase. uniform effect

Active Publication Date: 2015-06-10
江阴和宏精工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the technical field of ground wires, the materials of the ground cable cores are different, and most of the cable cores are pre-prepared. Heating the cable core to a high temperature makes it co-crystallize with the sheath melt, which may affect the The performance of the c

Method used

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  • Railway through earth line as well as preparation device and preparation method thereof
  • Railway through earth line as well as preparation device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The railway penetration ground wire in this embodiment includes a cable core and a copper alloy sheath coated on the outer layer of the cable core. The composition of the sheath includes copper, zinc, aluminum, arsenic and a rare earth element. The rare earth element can be lanthanum (La ) and neodymium (Nd), the thickness of the copper alloy sheath is 0.9mm.

[0024]The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melting copper alloy melt in the holding furnace cavity of the holding furnace, injecting the copper alloy melt into the crystallization chamber and infiltrating into the crystallization channel of the crystallizer , the caliber of the crystallization channel matches the thickness of the copper alloy sheath to be prepared, the cable core installed on the cable core unwinding wheel passes through the crystallization channel from front to back through the perforatio...

Embodiment 2

[0026] The railway penetration ground wire in this embodiment includes a cable core and a copper alloy sheath covering the outer layer of the cable core. The composition of the sheath includes copper, zinc, aluminum, arsenic and rare earth elements. The rare earth elements can be niobium and cesium , the thickness of the copper alloy sheath is 1 mm.

[0027] The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melting copper alloy melt in the holding furnace cavity of the holding furnace, injecting the copper alloy melt into the crystallization chamber and infiltrating into the crystallization channel of the crystallizer , the caliber of the crystallization channel matches the thickness of the copper alloy sheath to be produced, the cable core installed on the cable core unwinding wheel passes through the crystallization channel from front to back through the perforation, and the trave...

Embodiment 3

[0029] The railway penetration ground wire in this embodiment includes a cable core and a copper alloy sheath coated on the outer layer of the cable core. The composition of the sheath includes copper, zinc, aluminum, arsenic and a rare earth element. The rare earth element can be neodymium (Nd ), the thickness of the copper alloy sheath is 6mm.

[0030] The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melting copper alloy melt in the holding furnace cavity of the holding furnace, injecting the copper alloy melt into the crystallization chamber and infiltrating into the crystallization channel of the crystallizer , the caliber of the crystallization channel matches the thickness of the copper alloy sheath to be prepared, the cable core installed on the cable core unwinding wheel passes through the crystallization channel from front to back through the perforation, and the traveling...

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Abstract

The invention relates to a railway through earth line. The railway through earth line comprise a cable core and a copper alloy protective sleeve coating the outer layer of the cable core, wherein the thickness of the copper alloy protective sleeve is 0.9mm-10mm. The invention further provides a preparation device and a preparation method for the railway through earth line, wherein the copper alloy protective sleeve is formed by pouring a copper alloy solution to the outer layer of the cable core for being crystallized and condensed; the thickness of the copper alloy protective sleeve can be realized by changing the tube diameter of a crystallization channel of a crystallizer; the copper alloy solution in a channel is guided to directionally grow from the inside to the outside on the surface of the cable core under the control through a heating induction coil and a circulating cooling water path to obtain the railway through earth line which is reliable in combining the protective sleeve with the cable core boundary and uniform in protective sleeve crystal structure.

Description

technical field [0001] The invention relates to a penetrating ground wire used on trunk railways and high-speed railway rails, as well as a preparation device and a preparation process for the railway penetrating ground wire. Background technique [0002] On the left and right sides of the main line railway and high-speed railway track in my country, there is a railway through-ground wire laid along the entire length of the railway, and the left and right two through-ground wires are connected horizontally at intervals, thus forming a comprehensive railway grounding system. Railway comprehensive grounding is to connect the traction power supply and return system, electric power supply system, signal system, communication and other electronic information systems, buildings, ballast beds, platforms, bridges, tunnels, sound barriers and other devices that need to be grounded along the railway through through ground wires. integrated grounding system. At the same time, the pene...

Claims

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Application Information

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IPC IPC(8): H01B7/17H01B13/22H01R4/66
Inventor 赵敏杰陈华
Owner 江阴和宏精工科技有限公司
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