Railway through ground wire as well as preparation device and preparation method thereof

A railway through-ground wire and channel technology, applied in circuits, cable/conductor manufacturing, conductors, etc., can solve problems such as the influence of cable core performance, energy consumption, and difficulty in controlling the uniformity of cable core thickness along the length direction, etc. Sheath metallographic structure is uniform, combined with reliable 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, for ground wire products with a narrow range of melting point difference between the cable core and the sheath alloy, the cable core is very easy to directly dissolve into the sheath alloy melt, and it is difficult to realize the interface between the cable core and the sheath. Diffusion eutectic ultra-long ground wires are produced. At the same time, the materials of the ground cable cores are different, and most

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  • Railway through ground wire as well as preparation device and preparation method thereof
  • Railway through ground wire as well as preparation device and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] 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.

[0020] The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melts copper alloy melt in a holding furnace, submerges the copper alloy melt into the crystallization furnace and infiltrates the down-leading channel, and installs the copper alloy melt in the cable The cable core on the core unwinding wheel passes through the down-leading channel from top to bottom. The diameter of the down-leading channel matches the thickness of the copper alloy sheath to be prepared. When the core is drawn down, the circulating cooling wat...

Embodiment 2

[0022]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 1mm.

[0023] The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melts copper alloy melt in a holding furnace, submerges the copper alloy melt into the crystallization furnace and infiltrates the down-leading channel, and installs the copper alloy melt in the cable The cable core on the core unwinding wheel passes through the down-leading channel from top to bottom, the diameter of the down-leading channel matches the thickness of the copper alloy sheath to be produced, and the down-leading speed of the cable core is 6000mm / min; When the cable ...

Embodiment 3

[0025] 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.

[0026] The method for producing railway through-ground wires using the above-mentioned preparation device for railway through-ground wires, specifically, melts copper alloy melt in a holding furnace, submerges the copper alloy melt into the crystallization furnace and infiltrates the down-leading channel, and installs the copper alloy melt in the cable The cable core on the core unwinding wheel passes through the down-leading channel from top to bottom. The diameter of the down-leading channel matches the thickness of the copper alloy sheath to be prepared. When the core is drawn down, the circulating cooling water is turned on, and ...

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Abstract

The invention relates to a railway through ground wire. The ground wire comprises a cable core and a copper alloy protective sleeve which covers the outer layer of the cable core and is 0.9-10mm thick. The invention additionally provides a preparation device of a railway through ground wire and a corresponding preparation method, the copper alloy protective sleeve is formed by pouring a copper alloy solution to an outer layer of the cable core to crystallize and condense, the thickness of the copper alloy protective sleeve can be realized by changing the pipe diameter of a lower guide channel of a crystallizer, and the copper alloy molten solution in the lower guide channel can be controlled to grow from inside to outside the surface of the cable core by a heating induction coil and circulating cooling water channel, so as to obtain the railway through ground wire which has reliable connection on a separating place between the protective sleeve and the cable core and uniform metallographic structures of the protective sleeve.

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 陈华赵敏杰
Owner 江阴和宏精工科技有限公司
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