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Preparation method of Cu-Cr-Zr alloy contact wire

A cu-cr-zr, contact wire technology, used in cable/conductor manufacturing, electrical components, circuits, etc., can solve problems such as difficult to achieve, and achieve the effects of reducing segregation, low energy consumption, and improving product performance

Active Publication Date: 2015-11-11
北京兴荣源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation technology of US68812817 Cu—(0.05~1.0)%Cr—(0.05~0.25)%Zr alloy, it is necessary to strictly control the solid solution parameters to adjust the concentration of S, which is difficult to achieve in actual production

Method used

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  • Preparation method of Cu-Cr-Zr alloy contact wire
  • Preparation method of Cu-Cr-Zr alloy contact wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Melt 20kg of electrolytic copper (purity: 99.9%) in an induction furnace, add charcoal and graphite flakes to cover the protective solution at the same time, then add 1.69kgCu-10%Cr, 0.3kgCu-20%Zr intermediate alloy, and keep warm for 10min Stop the furnace and remove slag.

[0025] (2) Continuous extrusion of spray deposition to prepare contact wire billet: spray and deposit the atomized alloy solution into the groove 9 of the extrusion wheel under the action of the flow controller 3, and preheat it under the action of the extrusion force The final die 8 is continuously extruded to extrude the contact wire billet, the melt atomization temperature is 1250°C, the atomization air pressure is 0.20MPa, the extrusion wheel speed is 2r / min, and the motor speed in the popular controller is 1000r / min.

[0026] (3) The contact wire billet obtained in step (2) is subjected to planetary rolling, and the rolling deformation is 2.0.

[0027] (4) Aging treatment at 400°C for 0.5...

Embodiment 2

[0030] (1) Melt 20kg of electrolytic copper (purity: 99.9%) in an induction furnace, add charcoal and graphite flakes to cover the protection solution, then add 1.1kgCu-10%Cr, 0.23kgCu-20%Zr intermediate alloys, keep warm for 12min Stop the furnace and remove slag.

[0031](2) Continuous extrusion of spray deposition to prepare contact wire billet: spray and deposit the atomized alloy solution into the groove 9 of the extrusion wheel under the action of the flow controller, and pass the preheating process under the action of the extrusion force. The mold 8 continuously extrudes and extrudes the contact wire billet; the melt atomization temperature is 1200°C, the atomization air pressure is 0.6MPa, the rotation speed of the extrusion wheel is 10r / min, and the rotation speed of the motor in the popular controller is 1500r / min.

[0032] (3) The contact wire billet obtained in step (2) is subjected to planetary rolling and the rolling deformation is 2.0.

[0033] (4) Aging treatm...

Embodiment 3

[0036] (1) Melt 20kg of electrolytic copper (99.9% purity) in an induction furnace, add charcoal and graphite flakes to cover the protection solution, then add 2.2kgCu-10%Cr, 0.9kgCu-20%Zr master alloy, keep warm for 15min Stop the furnace and remove slag.

[0037] (2) Continuous extrusion of spray deposition to prepare contact wire billet: spray and deposit the atomized alloy solution into the wheel groove 9 of the extrusion wheel under the action of the flow controller, and pass the preheating process under the action of the extrusion force. The final die 8 is continuously extruded to extrude the contact wire billet; the melt atomization temperature is 1225° C., the atomization air pressure is 0.80 MPa, the rotation speed of the extrusion wheel is 5 r / min, and the rotation speed of the motor in the popular controller is 1200 r / min.

[0038] (3) The contact wire billet obtained in step (2) is subjected to planetary rolling and the rolling deformation is 2.0.

[0039] (4) Agi...

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Abstract

The invention discloses a preparation method of a Cu-Cr-Zr alloy contact wire, and belongs to the technical field of copper alloy processing and preparation. The contact wire with a cross section area of 110 to 150 mm2 is prepared through steps of melting, spray deposition and continuous extrusion, planetary rolling, aging, and drawing. In the provided method, the product structure property and overall dimension can be controlled in one technology. The Cu-Cr-Zr alloy contact wire prepared by the spray deposition and continuous extrusion method has the advantages of high strength, good conductivity, and excellent high temperature softening resistant property. The preparation method has the advantages that the process flow is short, the material utilization rate is high, the product performance can be guaranteed, at the same time, the production cost is reduced, the contact wire can be made into any length in theory, and the contact wire is suitable for industrial application.

Description

technical field [0001] The invention discloses a method for preparing a Cu-Cr-Zr alloy contact wire, which belongs to the technical field of copper alloy processing and preparation. Background technique [0002] The function of the contact wire is to transmit electric energy to the electric locomotive by connecting with the pantograph of the electric locomotive. The contact wire needs to work in harsh environments such as current transmission, suspension tension, operating shock, and temperature difference changes, so there are high requirements for the tensile strength, electrical conductivity, and high temperature softening resistance of the contact wire. On the one hand, it must have higher High electrical conductivity to reduce ohmic heat loss and voltage drop in the wire during current transmission; on the other hand, it must have high mechanical strength to adapt to large-span laying and reduce laying costs. However, the strength and conductivity of conductors are not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08H01B13/00
Inventor 尹建成王力强刘丽娜陈业高钟毅
Owner 北京兴荣源科技有限公司
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