Aluminum alloy power cable

A power cable and aluminum alloy technology, applied in the field of high-performance, low-cost aluminum alloy power cables, can solve the problem that the basic performance cannot meet the requirements, and achieve the effect of reducing the weight of the cable, improving the comprehensive performance and reasonable matching.

Inactive Publication Date: 2016-02-24
沈阳沈缆四环电缆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the electrical conductivity, heat resistance, creep resistance, tensile strength and other indicators of the aluminum alloy power cables produced by the existing technology are far behind those of the copper alloy power cables, and the basic performance cannot meet the requirements in the power transmission industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An aluminum alloy power cable, the chemical composition of the aluminum alloy power cable (mass fraction, %):

[0031] Si: 0.01; Fe: 0.5; Mn: 0.01; Cu: 0.03; Mg: 0.01; Zn: 0.01; (V+Ti+Cr+Ni+Co+Zr): 0.005; B: 0.01:

[0032] The balance is Al and unavoidable impurities.

[0033] The aluminum alloy rod is drawn, annealed at a heating temperature of 310-350°C for 5.5-10 hours, and twisted into a cable. The elongation rate of the power cable is 21%, the tensile strength is 194MPa, and the resistivity is 0.02780Ω·mm 2 / m, the conductivity is 62%IACS, and the average creep speed is 4×10 -2 %h, fatigue bending times 18.

Embodiment 2

[0035] An aluminum alloy power cable, the chemical composition of the aluminum alloy power cable (mass fraction, %):

[0036] Si: 0.08; Fe: 0.8; Mn: 0.03; Cu: 0.04; Mg: 0.06; Zn: 0.05; (V+Ti+Cr+Ni+Co+Zr): 0.015; B: 0.04;

[0037] The balance is Al and unavoidable impurities.

[0038] The aluminum alloy rod is drawn, annealed at a heating temperature of 380°C for 5.0 hours, and twisted into a cable. The elongation rate of the cable monomer is 23%, the tensile strength is 210MPa, and the resistivity: 0.02779Ω·mm 2 / m, the conductivity is 61%IACS, and the average creep speed is 4.5×10 -2 %h.

Embodiment 3

[0040] An aluminum alloy power cable, the chemical composition of the aluminum alloy power cable (mass fraction, %):

[0041] Si: 0.3; Fe: 1.3; Mn: 0.05; Cu: 0.05; Mg: 0.1; Zn: 0.08; (V+Ti+Cr+Ni+Co+Zr): 0.2; Be: 0.02;

[0042] The balance is Al and unavoidable impurities.

[0043] The aluminum alloy rod is drawn, annealed at a heating temperature of 350-380°C for 4 hours, and twisted into a cable. Cable monomer elongation rate 24%, tensile strength 225MPa, resistivity: 0.02842Ω·mm 2 / m, the conductivity is 63%IACS, and the average creep speed is 4.8×10 -2 %h.

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Abstract

The invention discloses an aluminum alloy power cable. The chemical constituents of the aluminum alloy power cable include by mass: 0.01-0.30% of Si, 0.5-1.3% of Fe, 0.01-0.05% of Mn, 0.03-0.05% of Cu, 0.01-0.5% of Mg, 0.01-0.09% of Zn, 0.005-0.20% of (V+Ti+Cr+Ni+Co+Zr), 0.01-0.06% of E and the balance being Al and inevitable impurities, wherein the element E is one or two of B and Be. The aluminum alloy power cable has the advantages that aluminum alloy has relatively high comprehensive performance due to the addition of elements Fe, Mg and the like, particularly the proportions of specific contents; meanwhile, the aluminum alloy power cable has obvious advantages of a light weight; when the aluminum alloy power cable disclosed by the invention substitutes a copper cable, the cable weight can be reduced, the installation cost, the abrasion of the device and the cable and the operation cost are reduced, energy is saved, the environment is protected, and the economic benefit is improved.

Description

technical field [0001] The invention relates to the field of power transmission, and in particular provides a high-performance, low-cost aluminum alloy power cable. Background technique [0002] Aluminum is the most abundant metal in the earth's crust. Of the total mass of the Earth's crust, aluminum accounts for about 8%, iron about 5%, and copper about 0.0001%. And the only 0.0001% copper resource in the total mass of the earth's crust is being widely used in various fields of today's society at an inestimable speed, including power transmission, water conservancy pipelines, radiator applications and many other aspects, so the copper metal The increasing shortage of resources has led to rising copper metal prices, resulting in rising construction costs. Therefore, technicians in related technical fields urgently need a new technology that can replace copper power cables. Replacing copper with aluminum can be a long-term development strategy. In terms of resources, alumi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02
Inventor 韩福利郝秀丽于慧蕊王冰邢泽秀黄士庆
Owner 沈阳沈缆四环电缆制造有限公司
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