Copper alloy wire, copper alloy stranded wire, coated electric wire, wire harness and manufacturing method of copper alloy wire

Abstract

The invention provides a copper alloy wire, a copper alloy stranded wire, a coated electric wire, a wire harness and a manufacturing method of the copper alloy wire. This copper alloy wire used as the conductor in a wire for use in vehicles contains 0.4-2.5 mass% Fe, 0.01-1.0 mass% Ti, and a total of 0.01-2.0 mass% of one or more species selected from Mg, Sn, Ag, Ni, In, Zn, Cr, Al and P, the remainder being Cu and unavoidable impurities. The O content is preferably 20ppm or less. The tensile strength is preferably 450MPa or greater. The element wire stretchability is preferably 5% or greater. The conductivity is preferably 62% IACS or greater.

Description

technical field [0001] The present invention relates to copper alloy wires, copper alloy stranded wires, covered electric wires, and methods for producing copper alloy wires, and in particular, to copper alloy wires, copper alloy stranded wires, and covered electric wires preferably used in electric wires for automobiles And the manufacturing method of copper alloy wire. Background technique [0002] As part of the weight reduction requirements of automobiles, it is required to reduce the weight of electric wires for automobiles. Weight reduction of electric wires for automobiles can be achieved by reducing the diameter of the conductors. However, even when the conductor is simply reduced in diameter, there are cases where requirements such as strength characteristics cannot be met. [0003] For example, for branching of electric wires, conductors of a plurality of electric wires may be joined to each other by ultrasonic welding, and the ultrasonic welded portion is requir...

AI Technical Summary

Problems solved by technology

However, even when the conductor is simply reduced in diameter, there are cases where requirements such as strength characteristics cannot be met.

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