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Highly wear resistant copper silver alloy contact wire and production method thereof

A copper-silver alloy, production method technology, applied in metal/alloy conductors, electrical components, circuits, etc., can solve the problems affecting the service life of electrified railway catenary, etc., to ensure strength and electrical conductivity, improve wear resistance, purify Matrix effect

Active Publication Date: 2013-01-09
JIANGYIN ELECTRICAL ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wear ratio of the copper-silver alloy contact wire produced by domestic production enterprises using the continuous casting and rolling production process is higher than 0.015mm 2 / 10,000 sorties; seriously affected the service life of electrified railway catenary

Method used

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  • Highly wear resistant copper silver alloy contact wire and production method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Production of CTAH120 high wear-resistant copper-silver alloy contact wire

[0026] Take 99.895kg copper cathode, 0.09kg silver ingot, 0.006kg indium and 0.009kg tellurium with copper content> 99.95% (weight percentage), place them in a vacuum melting furnace, heat to 1050~1200℃, and smelt them into copper-silver alloy ingots. The copper-silver alloy ingot is smelted into a copper-silver alloy liquid using a power frequency furnace with a heating temperature of 1050~1200℃, the crystallizer is directly extended into the copper-silver alloy liquid, and the copper-silver alloy liquid is topped by the method of upward continuous casting. The copper-silver alloy rod is made by continuous casting. Charcoal is used to insulate oxygen during upward continuous casting, and the water is cooled by a jacket.

[0027] The copper-silver alloy rod is continuously extruded, and then rolled by a multi-roll continuous rolling mill to produce a copper-silver alloy rod that meets the...

Embodiment 2

[0030] Example 2: Production of CTAH85 high wear-resistant copper-silver alloy contact wire

[0031] Take 99.895 kg of copper cathode, 0.092 Kg of silver ingot, 0.005 kg of indium and 0.008 kg of tellurium with copper content> 99.95% (weight percentage), place them in a vacuum melting furnace, heat to 1050~1200℃, and smelt them into copper-silver alloy ingots. The copper-silver alloy ingot is smelted into a copper-silver alloy liquid using a power frequency furnace with a heating temperature of 1050~1200℃, the crystallizer is directly extended into the copper-silver alloy liquid, and the copper-silver alloy liquid is topped by the method of upward continuous casting. The copper-silver alloy rod is made by continuous casting. Charcoal is used to insulate oxygen during upward continuous casting, and the water is cooled by a jacket.

[0032] The copper-silver alloy rod is continuously extruded, and then rolled by a multi-roll continuous rolling mill to produce a copper-silver alloy ro...

Embodiment 3

[0035] Example 3: Production of CTAH150 high wear-resistant copper-silver alloy contact wire

[0036] Take 99.902 kg of copper cathode, 0.085 Kg of silver ingot, 0.005 kg of indium and 0.008 kg of tellurium with copper content> 99.95% (weight percentage), place them in a vacuum melting furnace and heat to 1050~1200°C to smelt them into copper-silver alloy ingots. The copper-silver alloy ingot is smelted into a copper-silver alloy liquid using a power frequency furnace with a heating temperature of 1050~1200℃, the crystallizer is directly extended into the copper-silver alloy liquid, and the copper-silver alloy liquid is topped by the method of upward continuous casting. The copper-silver alloy rod is made by continuous casting. Charcoal is used to insulate oxygen during upward continuous casting, and the water is cooled by a jacket.

[0037] The copper-silver alloy rod is continuously extruded, and then rolled by a multi-roll continuous rolling mill to produce a copper-silver alloy...

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Abstract

The invention relates to a highly wear resistant copper silver alloy contact wire which is characterized in that in the highly wear resistant copper silver alloy contact wire, copper content is higher than or equal to 99.75% (percentage by weight), silver content is 0.08-0.10% (percentage by weight), indium content is 0.005-0.006% (percentage by weight), and tellurium content is 0.0008-0.010% (percentage by weight). The production method comprises the following processing steps: smelting in a vacuum melting furnace for the first time; smelting in a main frequency furnace for the second time; and then performing upward continuous casting, continuous extrusion, multi-roll rolling, and cold drawn molding to form the contact wire. According to the invention, the highly wear resistant copper silver alloy contact wire prepared by the method can meet the strength requirement and conductive performance of a high speed electric railway, and the service life can be prolonged.

Description

Technical field [0001] The invention relates to a high wear-resistant copper-silver alloy contact wire and a production method thereof. Mainly used in high-speed electrified railway contact network as power supply wire. It belongs to the technical field of electrical alloy materials. Background technique [0002] Copper-silver alloy contact wire is a kind of power supply wire in the electric railway contact network. The strength and conductivity of the contact wire are the key technologies for the safe and reliable operation of electric locomotives. With the increasing maturity of my country's electrified railway construction technology, the electromechanical performance of the contact wire is required to meet the specified conditions, but also need to achieve high wear resistance, so that the electric locomotive can operate safely and reliably, and can extend the service life. [0003] At present, the wear ratio of copper-silver alloy contact wires produced by domestic manufactu...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B1/02
Inventor 陈希康冯岳军张忠良
Owner JIANGYIN ELECTRICAL ALLOY
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