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

A technology of aluminum alloy and aluminum intermediate alloy, which is applied in the field of alloy wire manufacturing, can solve the problems that aluminum alloy wire cannot meet high strength, high conductivity and heat resistance at the same time, and achieve the effects of high strength, increased spacing and high conductivity

Inactive Publication Date: 2011-07-27
安徽和电普华电气有限公司
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing aluminum alloy wires cannot meet the requirements of high strength, high conductivity and heat

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

[0022] Select Al99.80 industrial pure aluminum and customized lanthanum-aluminum (La-Al), cerium-aluminum (Ce-Al) and scandium-aluminum (Sc-Al) master alloys, and the mass percentages of their respective rare earths are 19.51%, 20.01% and 20.11% (the content of lanthanum in the lanthanum-aluminum master alloy is 19.51%, the content of cerium in the cerium-aluminum master alloy is 20.01%, and the content of scandium in the scandium-aluminum master alloy is 20.11%). According to the formula aluminum Al99.57%, lanthanum La0.1%, cerium Ce0.1%, scandium Sc0.1%, iron Fe0.1%, respectively weigh raw industrial pure aluminum, the above three intermediate alloys and iron blocks into the intermediate frequency furnace In 30 minutes, the temperature is rapidly raised to 780-800 ° C, and after melting, put in a degasser to degas; and use a molybdenum rod to stir slowly while destroying the surface oxide layer as little as possible, and the stirring time is 2-3 minutes; Slag, to obtain alum...

Embodiment 2

[0025] Select Al99.80 industrial pure aluminum and customized lanthanum-aluminum (La-Al), cerium-aluminum (Ce-Al) and scandium-aluminum (Sc-Al) master alloys, and the mass percentages of their respective rare earths are 19.51%, 20.01% and 20.11%. According to the formula aluminum Al99.25%, lanthanum La0.2%, cerium Ce0.2%, scandium Sc0.2%, iron Fe0.1%, respectively weigh industrial pure aluminum, the above three master alloys and iron block raw materials into the intermediate frequency furnace In 30 minutes, the temperature is rapidly raised to 780-800 ° C, and after melting, put in a degasser to degas; and use a molybdenum rod to stir slowly while destroying the surface oxide layer as little as possible, and the stirring time is 2-3 minutes; Slag, to obtain aluminum alloy liquid, at a temperature of 780-800°C, the aluminum alloy liquid was left to stand for 30 minutes; during this period, the components were analyzed and replenished; the weight percentage of each component in ...

Embodiment 3

[0027]Select Al99.80 industrial pure aluminum and customized lanthanum-aluminum (La-Al), cerium-aluminum (Ce-Al) and scandium-aluminum (Sc-Al) master alloys, and the mass percentages of their respective rare earths are 19.51%, 20.01% and 20.11%. According to the formula aluminum Al98.65%, lanthanum La0.4%, cerium Ce0.4%, scandium Sc0.4%, iron Fe0.1%, respectively weigh industrial pure aluminum, the above three master alloys and iron block raw materials into the intermediate frequency furnace In 30 minutes, the temperature is rapidly raised to 780-800 ° C, and after melting, put in a degasser to degas; and use a molybdenum rod to stir slowly while destroying the surface oxide layer as little as possible, and the stirring time is 2-3 minutes; Slag, to obtain aluminum alloy liquid, at a temperature of 780-800 ° C, the aluminum alloy liquid was left to stand for 30 minutes; during this period, the components were analyzed and fed; the weight percentage of each component in the fur...

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

No PUM Login to view more

Abstract

The invention relates to a high-strength high-conductivity heat-resistant aluminum alloy wire. The wire consists of the following raw materials by weight percent: 98.5 to 99.6% of aluminum Al, 0.1 to 0.4% of lanthanum La, 0.1 to 0.4% of cerium Ce, 0.1 to 0.4 % of scandium Sc, 0.01 to 0.2% of Ferrum Fe, 0.01 to 0.1% of silicon Si, and less than 0.01% of titanium Ti, vanadium V, manganese Mn, chromium Cr and other impurity elements all together. Compared with the aluminum alloy wire in the prior art, the aluminum alloy wire of the invention has high strength and high conductivity simultaneously, the tensile strength reaches over 255 Mpa, the electric conductivity can reach over 60.0% IACS (International Annealed Copper Standard), and the high-strength high-conductivity heat-resistant aluminum alloy wire with the heat resistance reaching more than 180 DEG C during long-term running can effectively improve the power transmission capability of conducting wire and simultaneously widen the spacing between conducting wire towers, thereby furthering lowering the investment cost. The aluminum alloy wire has small sag, and the span of an iron tower can be increased by 30% in general. The high-strength high-conductivity heat-resistant aluminum alloy wire can be used in densely populated urban areas. In the process of the invention, both the burning loss of a variety of elements and the oxidation of materials can be reduced by adopting an intermediate frequency furnace for smelting, the smelting time is relatively short so as to raise the productivity, and long-time thermal treatment is not required in the production process, so the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of alloy wire manufacture, and in particular relates to a high-strength, high-conductivity and heat-resistant aluminum wire for transmission lines and a manufacturing process thereof. Background technique [0002] In the past, the main component of wires used as transmission lines in my country was copper. As we all know, my country's copper resources are extremely short, and aluminum resources are very rich. Why do we have to use copper conductors when wires and cables can use copper and aluminum? From a foreign point of view, no country has to use copper conductors like our country. Even for high-voltage and ultra-high-voltage power cables, countless aluminum conductors are used. More than 80% of the wires and cables in France are aluminum conductors, and the aluminum conductors in Japan also account for more than 50%. my country's current application volume is less than 1%. The main reason for this is ...

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): C22C21/00C22C1/03
Inventor 黄新民吴玉程舒霞郑玉春秦兴国
Owner 安徽和电普华电气有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap