Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of high-conductivity high-strength copper chromium zirconium alloy thin line conductor

A high-conductivity, copper-chromium-zirconium technology, applied in the direction of metal/alloy conductors, cable/conductor manufacturing, circuits, etc., can solve the problem that the conductivity is only 80-85%, the conductivity cannot be obtained, and the secondary solid solution is not considered Solve and other problems to achieve the effect of ensuring operation safety, high tensile strength and good elongation performance

Active Publication Date: 2014-04-02
SHANGHAI ELECTRIC CABLE RES INST
View PDF8 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that simply adopting a solid solution-aging treatment for copper-chromium-zirconium alloy materials is often difficult to achieve the purpose of achieving both strength and electrical conductivity while obtaining higher electrical conductivity. high index of rate
Liu Ping ("Recent Preparation Technology of New Copper-Chromium Alloys", Science Press, Beijing, 2007, p277-282) proposed a treatment method combining heat treatment and cold working, and achieved better Both high strength and high conductivity are taken into account, but secondary solution treatment is not considered. The tensile strength of the material performance is above 500MPa, but the conductivity still only reaches 80-85%IACS

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of high-conductivity high-strength copper chromium zirconium alloy thin line conductor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The prepared alloy adopts electrolytic copper plate and Cu-Cr, Cu-Zr master alloy according to mass percentage proportioning, the content of Cr is 0.65%, the content of Zr is 0.06%, and the rest is Cu.

[0035] 1. The copper content of the electrolytic copper plate used is not less than 99.95%, and the composition of the master alloy is: Cu-10%Cr, Cu-40%Zr. The electrolytic copper plate is cut into strips, dried and placed in a crucible in a vacuum induction melting furnace. The copper-chromium and copper-zirconium intermediate alloys are cut into pieces and dried in the feeding mechanism. The vacuum degree does not exceed 1×10 -2 Under the condition of Pa, induction heating is started to melt the electrolytic copper, and the temperature of the copper liquid is heated to 1250°C, and the copper-chromium and copper-zirconium intermediate alloy blocks are put into the copper liquid through the feeding mechanism, and the intermediate alloy blocks are dissolved into the coppe...

Embodiment 2

[0041] The prepared alloy is prepared by electrolytic copper plate and Cu-Cr, Cu-Zr master alloy according to the mass percentage, the content of Cr is 0.16%, the content of Zr is 0.09%, and the rest is Cu.

[0042] 1. The copper content of the electrolytic copper plate used is not less than 99.95%, and the composition of the master alloy is: Cu-8%Cr, Cu-35%Zr. The electrolytic copper plate is cut into strips, dried and placed in a crucible in a vacuum induction melting furnace. The copper-chromium and copper-zirconium intermediate alloys are cut into pieces and dried in the feeding mechanism. The vacuum degree does not exceed 1×10 -2 Under the condition of Pa, induction heating is started to melt the electrolytic copper, and the temperature of the copper liquid is heated to 1200°C, and the copper-chromium and copper-zirconium intermediate alloy blocks are put into the copper liquid through the feeding mechanism, and the intermediate alloy blocks are dissolved into the copper l...

Embodiment 3

[0048] The prepared alloy adopts electrolytic copper plate and Cu-Cr, Cu-Zr master alloy according to mass percentage proportioning, the content of Cr is 0.7%, the content of Zr is 0.01%, and the rest is Cu.

[0049] 1. The copper content of the electrolytic copper plate used is not less than 99.95%, and the composition of the master alloy is: Cu-12%Cr, Cu-45%Zr. The electrolytic copper plate is cut into strips, dried and placed in a crucible in a vacuum induction melting furnace. The copper-chromium and copper-zirconium intermediate alloys are cut into pieces and dried in the feeding mechanism. The vacuum degree does not exceed 1×10 -2 Under the condition of Pa, induction heating is started to melt the electrolytic copper, and the temperature of the copper liquid is heated to 1230°C, and the copper-chromium and copper-zirconium intermediate alloy blocks are put into the copper liquid through the feeding mechanism, and the intermediate alloy blocks are dissolved into the copper...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Conductivityaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of material processing, in particular to a preparation method of a high-conductivity high-strength copper chromium zirconium alloy thin line conductor. The preparation method comprises the following main steps: performing alloy smelting and blank forming, performing cold deformation processing on rod blanks and line blanks, performing multi-stage solution treatment, and performing aging treatment. According to the preparation method, the copper chromium zirconium alloy rod blanks obtained through a specific preparation formula and a smelting process are subjected to the multi-stage solution treatment and the aging treatment in multi-stage rolling and drawing cold-working processes, so that the sizes, shapes and distribution of precipitated phases in the copper chromium zirconium alloy processing process are effectively controlled, the mechanical performance of materials is improved, and good conductivity of copper-based alloy is kept.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to a method for preparing a high-conductivity high-strength copper-chromium-zirconium alloy fine wire conductor. Background technique [0002] The cable is composed of an inner conductor material and an outer insulating material. The conductor material is basically made of copper wire, copper alloy wire, and aluminum or aluminum alloy wire. At present, the most widely used cable conductor materials are annealed soft copper wire and unannealed hard copper wire. In the relevant product standard GB / T3953 "Electrical Round Copper Wire" standard, the main performance index of soft copper wire is 20 ℃ DC resistivity 0.017241Ω·mm 2 / m, that is, the conductivity is 100%IACS, the soft copper wire is very low and is not stressed in use, so there is no requirement for strength, and the elongation is greater than 10%; the main performance index of the hard copper wire is the DC res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22F1/08C22C9/00H01B1/02H01B13/00
Inventor 徐睿蔡西川朱军军毛协民
Owner SHANGHAI ELECTRIC CABLE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com