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Production process for long-length high-strength and high-conductivity copper-chrome-zirconium alloy contact wire

A production process, copper chromium zirconium technology, applied in the direction of cable/conductor manufacturing, electrical components, circuits, etc., can solve the problems of length, weight and shape limitations, high vacuum production cost, difficult production scale, etc., to reduce cost and difficulty , the distribution of alloy components is uniform, and the effect is consistent

Active Publication Date: 2017-04-26
CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP KANG YUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has a long production cycle, because it is cast in one furnace, the length, weight and shape are limited, and the vacuum production cost is high and the output is small, so it is difficult to establish a continuous industrial production scale

Method used

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  • Production process for long-length high-strength and high-conductivity copper-chrome-zirconium alloy contact wire
  • Production process for long-length high-strength and high-conductivity copper-chrome-zirconium alloy contact wire
  • Production process for long-length high-strength and high-conductivity copper-chrome-zirconium alloy contact wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] like Figure 5As shown, the right-angle channel continuous extrusion device includes a first extrusion die 27, and the first extrusion die 27 includes a first extrusion cavity 30, and the front side of the first extrusion cavity 30 is provided with a first A feeding channel 28, the first punching channel 31, the second punching channel 32 and the third punching channel 33 are arranged above the first extrusion cavity 30, the first punching channel 31, the second punching channel 32 and the Each of the third punches 33 is provided with corresponding punches, the first punches 31 are arranged vertically, and the second punches 32 and the third punches 33 are symmetrically arranged on the first punches. 31 on both sides, the first punching channel 31 is two volumes, the second punching channel 32 and the third punching channel 33 are one volume, and the second punching channel 32 and the third punching channel 33 form a 120° clip Angle, a right-angle discharge channel 29 ...

Embodiment 2

[0126] like Figure 6~Figure 9 As shown, the continuous extrusion device for right-angle passages includes a second extrusion die 35, and the second extrusion die 35 includes a second extrusion cavity 36, and the front side of the second extrusion cavity 36 is provided with a first Two feeding passages 37 and four feeding pressurizing passages 42 up, down, left, and right. Each feeding pressurizing passage 42 is provided with a corresponding punch. The rear side of the second extrusion cavity 36 is provided with a center outlet The material channel 38, the second feed channel 37 and the central discharge channel 38 are located on the same center line as the second extrusion cavity 36, and the four feed pressurization channels 42 are connected to the center of the second extrusion cavity 36. The line is at a certain angle. The central discharge channel 38 includes two sections, the front and the rear. A reverse circulation cooling system 41 is provided on the outside of the fro...

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Abstract

The invention relates to a production process for a long-length high-strength and high-conductivity copper-chrome-zirconium alloy contact wire. The production process comprises the following process steps that firstly, non-vacuum melting is conducted, specifically, standard cathode copper, standard copper-chrome intermediate alloy and copper-zirconium intermediate alloy are proportionally fed for melting of copper-chrome-zirconium alloy; secondly, upward continuous casting is conducted, specifically, copper-chrome-zirconium alloy continuous cast rod is prepared in an upward continuous casting mode; thirdly, online continuous solution strengthening is conducted; fourthly, rectangular channel continuous extrusion is conducted, specifically, rectangular channel continuous extrusion treatment is carried out to obtain a copper-chrome-zirconium alloy continuous contact wire rod blank; fifthly, aging treatment is conducted; and sixthly, cold-drawing forming is conducted, specifically, the copper-chrome-zirconium alloy continuous contact wire rod blank is subjected to multi-pass cold-drawing to prepare the copper-chrome-zirconium alloy continuous contact wire. Continuous production of the copper-chrome-zirconium alloy contact wire is achieved without being influenced by capacity of a furnace body, the copper-chrome-zirconium alloy contact wire which is in any length and meets the component requirements can be produced, and the future high-speed railway development demand can be met.

Description

technical field [0001] The invention relates to a production process of a large-length, high-strength, high-conductivity copper-chromium-zirconium alloy contact wire. Background technique [0002] With the development of electronic information technology, the requirements for the comprehensive performance of copper alloy conductive materials are getting higher and higher. It is required to maintain high electrical conductivity and thermal conductivity while maintaining high strength (hardness), toughness, and wear resistance. Sex, cold resistance, non-ferromagnetic and other characteristics. These excellent properties make copper alloys gradually become important metal materials used in high-tech fields such as electric power, information, transportation, energy, light industry and aerospace. In many occasions, it is rarely used in the form of pure copper. This is because the strength of pure copper is low (230-300 MPa). Although it can reach more than 400 MPa after cold wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03C22F1/08H01B13/00
CPCC22C1/03C22C9/00C22F1/002C22F1/08H01B13/00
Inventor 鲁衍任李学斌沈华赵德胜杨玉军车明安袁远路超吴静
Owner CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP KANG YUAN NEW MATERIALS CO LTD
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