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

High-strength and high-conductivity heat-resistant aluminum alloy wire and preparation method thereof

An aluminum alloy wire, aluminum alloy technology, applied in the direction of metal/alloy conductors, cable/conductor manufacturing, conductors, etc., can solve the problems of poor heat resistance, insufficient strength of aluminum alloy wires, low electrical conductivity, etc., to improve production. Efficiency, shortened time, improved thermal stability

Active Publication Date: 2018-09-21
SHANGHAI JIAO TONG UNIV +1
View PDF1 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of existing aluminum alloy wires such as insufficient strength, poor heat resistance, and low electrical conductivity, and provide a high-strength and high-conductivity heat-resistant aluminum alloy wire and its preparation method

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The high-strength and high-conductivity heat-resistant aluminum alloy wire in this embodiment is composed of the following elements in weight percentage: 1% zirconium Zr, 5% cerium Ce, 0.1% iron Fe, 0.08% silicon Si, and other The impurity content is less than 0.10%, and the rest is aluminum.

[0034] The method for preparing a high-strength and high-conductivity heat-resistant aluminum alloy wire with the above components consists of the following steps:

[0035] Select Al 99.7% industrial pure aluminum and place it in a smelting furnace to melt into molten aluminum, and raise the temperature of the molten aluminum to 720°C to 750°C;

[0036] According to the formula Zr 1%, Ce 5%, Fe0.1%, Si0.08%, respectively weigh the master alloy and put it into the molten aluminum; after the master alloy is melted, add a degasser to degas, and use a graphite rod to stir slowly and fully ; Refining and degassing with high-purity argon, removing slag and standing still; Entering the...

Embodiment 2

[0042] The high-strength and high-conductivity heat-resistant aluminum alloy wire in this embodiment is composed of the following elements in weight percentage: zirconium Zr is 1.5%, cerium Ce is 10%, iron Fe is 0.2%, silicon Si is 0.05%, and other The impurity content is less than 0.10%, and the rest is aluminum.

[0043] The method for preparing a high-strength and high-conductivity heat-resistant aluminum alloy wire with the above components consists of the following steps:

[0044] Select Al 99.7% industrial pure aluminum and place it in a smelting furnace to melt into molten aluminum, and raise the temperature of the molten aluminum to 720°C to 750°C;

[0045] According to the formula Zr 1.5%, Ce 10%, Fe0.2%, Si0.05%, respectively weigh the master alloy and put it into the molten aluminum; after the master alloy is melted, add a degasser to degas, and use a graphite rod to stir slowly and fully . Refining and degassing with high-purity argon, removing slag and standing ...

Embodiment 3

[0051] The high-strength and high-conductivity heat-resistant aluminum alloy wire in this embodiment is composed of the following elements in weight percentage: zirconium Zr is 2%, cerium Ce is 12%, iron Fe is 0.05%, silicon Si is 0.05%, and other The impurity content is less than 0.10%, and the rest is aluminum.

[0052] The method for preparing a high-strength and high-conductivity heat-resistant aluminum alloy wire with the above composition comprises the following steps:

[0053] Select Al 99.7% industrial pure aluminum and place it in a smelting furnace to melt into molten aluminum, and raise the temperature of the molten aluminum to 720°C to 750°C;

[0054] According to the formula Zr 2%, Ce 12%, Fe0.05%, Si0.05%, respectively weigh the master alloy and put it into the molten aluminum; after the master alloy is melted, add a degasser to degas, and use a graphite rod to stir slowly and fully . Refining and degassing with high-purity argon, removing slag and standing sti...

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
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-strength and high-conductivity heat-resistant aluminum alloy wire. The high-strength and high-conductivity heat-resistant aluminum alloy wire comprises the following compositions of, by weight, 0.2-2% of zirconium Zr, 5-12% of cerium Ce, 0.05-0.2% of iron Fe, 0.05-0.1% of silicon Si, less than 0.10% of other impurities and the balance aluminum. The invention furtherprovides a preparation method of the high-strength and high-conductivity heat-resistant aluminum alloy wire. The high-strength and high-conductivity heat-resistant aluminum alloy wire simultaneously has high strength, high conductivity and high heat resistance and low running line loss, the tensile strength of the heat-resistant aluminum alloy wire is greater than 280 MPa and can reach 322 MPa, the conductivity reaches 62% IACS, and the long-term running temperature can reach 210 DEG C. After heating at 280 DEG C for 1 hour for short-term heat resistance test, the strength increases instead ofdecreasing.

Description

technical field [0001] The invention relates to an aluminum alloy wire, in particular to a high-strength and high-conductivity heat-resistant aluminum alloy wire used in overhead transmission lines and a preparation method thereof. Background technique [0002] With the development of the national economy, large-span transmission lines are developing towards high-voltage, large-capacity, and long-distance. requirements. At present, the steel-cored aluminum stranded wires commonly used in urban and rural transmission lines in my country generally have a heat-resistant temperature of no more than 150°C and an electrical conductivity below 60% IACS. Low electrical conductivity leads to large line losses. Small breakthroughs on aluminum conductors often bring huge economic benefits. Therefore, how to obtain aluminum alloy wires with high strength, high conductivity and good heat resistance has become a top priority in the current power energy industry. [0003] However, the t...

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): C22C21/00C22C1/03C22F1/04H01B1/02H01B13/02
CPCC22C1/026C22C1/03C22C21/00C22F1/04H01B1/023H01B13/02
Inventor 高海燕王朦朦王俊尤伟任顾孙望李敏张驰
Owner SHANGHAI JIAO TONG UNIV
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