Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

A.l.m.t. Corporation

Ngk Spark Plug Company, Limited

Sumitomo Electric Industreis, Ltd.

Sumitomo Electric Toyama Co., Ltd.

Taichiro Nishikawa

Yoshihiro Nakai

Tetsuya Kuwabara

Yasuyuki Otsuka

Misato Kusakari

Hayato Ooi

Hiroyuki Kobayashi

Akiko Inoue

Yoshiyuki Takaki

Toshiya Ikeda

Kei Sakamoto

Yusuke Oshima

Yasuyuki Ootsuka

Kiyotaka Utsunomiya

Minoru Nakamoto

Kinji Taguchi

Hajime Ota

Isao Iwayama

Kazuhiro Nanjo

Hiroki Hirai

Shinji Inazawa

Junichi Ono

Kenji Miyazaki

Takuji Otsuka

Masatada Numano

Fumio Matsuyama

Kazuo Yamazaki

Toshiyuki Hatta

Fumitoshi Imasato

Kingo Furukawa

Shuzo Nagai

Shigeki Koyama

Teruyoshi Munekata

Hiroshi Fujita

Osamu Yoshimoto

Hitoshi Tsuchida

Masaya Nishi

Kenji Nunome

Ryoma Uegaki

Kazuhiro Goto

Kiyonori Yokoi

Toru Tanji

Ryo Toyoshima

Masao Sakuta

Takeshi Tokuda

Kazuhiro Nanjyo

Dai Kamogawa

Yohihiro Nakai

A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a plurality of copper alloy wires composed of a copper alloy and twisted together, and having a wire diameter of 0.5 mm or less, the copper alloy containing Fe in an amount of 0.1% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.7% by mass or less, and one or more elements selected from Ni, Al, Cr and Co in an amount of 0.01% by mass or more and 0.7% by mass or less in total, with a balance being Cu and impurities.

Covered electrical wire, terminal-equipped electrical wire, copper alloy wire, copper alloy stranded wire, and method for manufacturing copper alloy wire

An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.03 mass % and less than or equal to 1.5 mass % of Mg, more than or equal to 0.02 mass % and less than or equal to 2.0 mass % of Si, and a remainder of Al and an inevitable impurity, Mg/Si being more than or equal to 0.5 and less than or equal to 3.5 in mass ratio, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.

Aluminum alloy wire, aluminum alloy strand wire, covered electrical wire, and terminal-equipped electrical wire

An aluminum alloy contains at least 0.03 mass % and at most 1.5 mass % of Mg, at least 0.02 mass % and at most 2.0 mass % of Si, and a remainder composed of Al and an inevitable impurity, a mass ratio Mg/Si being not lower than 0.5 and not higher than 3.5. In a transverse section of the aluminum alloy wire, a rectangular surface-layer void measurement region having a short side of 30 &#x3bc;m long and a long side of 50 &#x3bc;m long is taken from a surface-layer region extending by up to 30 &#x3bc;m in a direction of depth from a surface of the aluminum alloy wire. A total cross-sectional area of voids present in the surface-layer void measurement region is not greater than 2 &#x3bc;m.

An aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer void measurement region in a shape of a rectangle having a short side length of 30 &#x3bc;m and a long side length of 50 &#x3bc;m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 30 &#x3bc;m in a depth direction, and a total cross-sectional area of voids in the surface-layer void measurement region is equal to or less than 2 &#x3bc;m.

A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a plurality of copper alloy wires composed of a copper alloy and twisted together, and has a wire diameter of 0.5 mm or less, the copper alloy containing Ni, or Ni and Fe in an amount of 0.1% by mass or more and 1.6% by mass or less in total, and P in an amount of 0.05% by mass or more and 0.7% by mass or less, with a balance being Cu and impurities, in the copper alloy, a ratio of precipitation of P to solid solution of P being 1.1 or more.

Covered electrical wire, terminal-equipped electrical wire, copper alloy wire, and copper alloy stranded wire

A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.2% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.4% by mass or less, and Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, with the balance being Cu and impurities, and having a mass ratio of Fe/P of 4.0 or more; and having a wire diameter of 0.5 mm or less.

A covered electrical wire comprising a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.1% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.7% by mass or less, and Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, with the balance being Cu and impurities; and having a wire diameter of 0.5 mm or less, the copper alloy wire having a tensile strength of 385 MPa or more and a work-hardening exponent of 0.1 or more.

A covered electric wire comprises an insulating coating layer on the outer side of a conductor. The conductor comprises a copper alloy consisting of: not less than 0.05% by mass and not more than 2.0% by mass of Fe; not less than 0.02% by mass and not more than 1.0% by mass of Ti; not less than 0% by mass and not more than 0.6% by mass of Mg; and the balance being Cu and impurities. The covered electric wire is a stranded wire comprising a plurality of copper alloy wires stranded together. The plurality of copper alloy wires each have a work hardening coefficient of not less than 0.1 and a wire diameter of not more than 0.5 mm.

Covered electric wire, terminal-fitted electric wire, copper alloy wire, and copper alloy stranded wire

An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.005 mass % and less than or equal to 2.2 mass % of Fe and a remainder of Al and an inevitable impurity, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.

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Osaka, Japan

Taichiro Nishikawa