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Aluminum alloy conductor

An aluminum alloy conductor and conductor technology, applied in the direction of metal/alloy conductors, conductors, insulated conductors, etc., can solve the problems of high yield strength, poor handleability, and different crystal orientation formation methods, and achieve excellent handleability and conductivity. , Excellent flexural fatigue resistance

Active Publication Date: 2014-01-01
FURUKAWA ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For applications with such requirements, pure aluminum systems represented by aluminum alloy wire materials for power transmission lines (JIS A1060 and JIS A1070) cannot sufficiently withstand repeated bending stresses caused by opening and closing of doors, etc.
In addition, materials alloyed by adding various additional elements have the following problems: a decrease in electrical conductivity due to the solid solution phenomenon of the elements added to aluminum; poor handling due to high yield strength
This processing process will affect the formation of the crystallization structure in the subsequent process, resulting in different ways of crystal orientation formation.

Method used

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  • Aluminum alloy conductor
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2、 comparative example 1

[0087] Examples 1 and 2, Comparative Example 1, Conventional Example 1

[0088] In such a manner that Fe, Mg, Si, Cu, and Al were in the amounts (% by mass) shown in Table 1, the molten metal was continuously cast using a Propez type continuous casting calender while using a water-cooled mold. calendered to obtain approx. of bars. The casting cooling rate at this time is 1°C / sec to 20°C / sec.

[0089] Next, peel the surface so that it is approximately It is wire-drawn until it is And the softening treatment is carried out at 350° C. to 400° C. for 2 hours to 3 hours. The history of wire drawing up to this point is shown below.

[0090]

[0091] Further, wire drawing is performed, and intermediate heat treatment is performed at 220°C to 310°C for 0.5 hours to 12 hours, and then wire drawing is performed with a processing rate of 10% to 30% (examples of processing rates of about 9% and about 31%) as a comparative example). The wire drawing process history and heat tr...

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PUM

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Abstract

The purpose of the invention is to provide an aluminum alloy conductor having excellent conductivity and bending fatigue resistance and the appropriate yield strength in that it has good manipulability. The aluminum alloy conductor is characterized in that it has a recrystallized aggregate structure wherein 20% or more of the surface area of the crystal particles has a (100) face disposed parallel to the cross section orthogonal to the wire drawing direction and the crystal grain size at the cross section orthogonal to the wire drawing direction is 1 to 30 [mu]m.

Description

technical field [0001] The present invention relates to an aluminum alloy conductor for use as a conductor of an electrical wiring body. Background technique [0002] In the past, parts called wire harnesses have been used as electrical wiring bodies for moving bodies such as automobiles, trams, and aircraft. Such parts are equipped with copper or copper alloys (such as brass wires) on wires containing copper or copper alloy conductors. Copper) terminal (connector). However, in recent years, in reducing the weight of mobile bodies, studies have been conducted to use aluminum or aluminum alloys that are lighter than copper or copper alloys as conductors of electric wiring bodies. [0003] The specific gravity of aluminum is about 1 / 3 of that of copper, and the conductivity of aluminum is about 2 / 3 of that of copper (in the case of pure copper as the benchmark of 100% IACS, pure aluminum is about 66% IACS). To flow the same current as a pure copper conductor wire through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22F1/04H01B1/02H01B5/02H01B7/00H01B13/00C22F1/00
CPCB21C1/003H01B1/023H01B5/02C22C21/00C22C21/12C22C21/14C22C21/16C22F1/04
Inventor 关谷茂树须斋京太
Owner FURUKAWA ELECTRIC CO LTD
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