Aluminum alloy conductor wire, aluminum alloy twisted wire, sheathed electrical cable, wire harness, and method for manufacturing aluminum alloy conductor wire

Abstract

Provided is an aluminum alloy conductor wire for use as a conductor in electrical wiring that has improved pressure-bonding reliability while ensuring excellent strength. This aluminum alloy conductor wire has a composition that contains 0.1-1.0 mass% of Mg, 0.1-1.20 mass% of Si, 0.01-1.40 mass% of Fe, 0-0.100 mass% of Ti, 0-0.030 mass% of B, 0-1.00 mass% of Cu, 0-0.50 mass% of Ag, 0-0.50 mass% of Au, 0-1.00 mass% of Mn, 0-1.00 mass% of Cr, 0-0.50 mass% of Zr, 0-0.50 mass% of Hf, 0-0.50 mass% of V, 0-0.50 mass% of Sc, 0-0.50 mass% of Co, and 0-0.50 mass% of Ni, the balance being Al and unavoidable impurities, the grain diameter being 0.5-5.0 [mu]m, and the density of compounds that contain Fe being 1-300 / 10,000 [mu]m<2>.

Description

technical field [0001] The present invention relates to an aluminum alloy wire used as a conductor of an electric wiring body, an aluminum alloy stranded wire, a covered wire, a wire harness, and a method for manufacturing the aluminum alloy wire. Background technique [0002] Conventionally, terminals made of copper or copper alloy (such as brass) are used to attach wires containing copper or copper alloy conductors to electrical wiring bodies of moving bodies such as automobiles, trains, and airplanes, or electrical wiring bodies of industrial robots. (connectors), so-called wiring harness components. Recently, the high-performance and high-functionality of automobiles have been rapidly developed. Along with this, there is a tendency that the number of various electrical equipment and control equipment installed in the vehicle increases, and the electrical wiring used in these equipment The number of configurations of the body is also increased. In addition, on the other...

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Problems solved by technology

[0014] However, in the above-mentioned aluminum alloy wires of Patent Documents 1 to 4, there is a problem that abnormal growth of crystal grains may locally occur during heat treatment in the manufacturing process, and as a result, the amount of plastic deformation of the wire during crimping may vary, which is different from Insufficient crimping reliability when crimping covers such as terminals

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