Hitachi Metals, Ltd.

Takayuki Tuji

Hiromitsu Kuroda

Shohei Hata

Keisuke Fujito

Toru Sumi

Kazuya Nishi

Kazuhisa Takahashi

Bendability of a copper alloy wire is improved without decrease in an electrical conductivity of the copper alloy wire made of copper alloy containing zirconium. A cable includes: a two-core stranded wire formed by intertwining two electrical wires made of a conductor and an insulating layer covering the conductor; a filler formed around the two-core stranded wire; and a sheath formed around the filler and the electrical wire. The conductor is a copper alloy wire in which a precipitate containing the zirconium disperses, and has a crystal gain diameter that is equal to or smaller than 1 &#x3bc;m, an electrical conductivity that is equal to or higher than 87% IACS, and a tensile stress that is equal to or larger than 545 MPa.

Copper alloy wire, cable, and method of manufacturing copper alloy wire

An insulated electric wire is composed of a conductor composed of a copper material, and an electrical insulating layer provided on an outer periphery of the conductor. For the constituent conductor of the insulated electric wire, in an orientation intensity ratio obtained by X-ray diffraction of a transverse cross section of the conductor, an intensity in a [200] crystal orientation is higher than an intensity in a [111] crystal orientation.

Insulated electric wire, coil and producing method for same coil

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Tokyo, Japan

Takayuki Tuji