Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Ngk Spark Plug Company, Limited

Sumitomo Electric Toyama Co., Ltd.

Chisso Corporation

Meidensha Corporation

A.l.m.t. Corporation

Toyoda Automatic Loom Works, Ltd.

Chisso Polypro Fiber Compound Ltd.

Yoshihiro Nakai

Taichiro Nishikawa

Misato Kusakari

Tetsuya Kuwabara

Yasuyuki Otsuka

Hayato Ooi

Masatada Numano

Yoshiyuki Takaki

Kazuo Sawada

Toshiya Ikeda

Hiroyuki Kobayashi

Yasuyuki Ootsuka

Akiko Inoue

Kei Sakamoto

Kazuhiko Hayashi

Kazuo Yamazaki

Hiroki Hirai

Junichi Ono

Kinji Taguchi

Hajime Ota

Kenji Miyazaki

Takuji Otsuka

Kengo Ohkura

Kouichi Yamada

Masuo Iwata

Takayuki Kato

Masatoshi Majima

Akihisa Hosoe

Shinji Inazawa

Kazuki Okuno

Takashi Kondo

Osamu Yoshimoto

Masashi Yamamoto

Hitoshi Tsuchida

Taichirou Nishikawa

Masanobu Nishio

Yusuke Oshima

Mitsuyuki Kobayashi

Minoru Nakamoto

Kazuhiro Nanjo

Kiyotaka Utsunomiya

Fumitoshi Imasato

Kingo Furukawa

Kozo Amano

Kenichi Kumagai

Shigeo Ezaki

Teruyoshi Munekata

Teruyuki Kondo

Shinichi Sato

Masamichi Kuramoto

Kenji Nunome

Hajime Hitotsuyanagi

Norikazu Deto

Kazuhiro Goto

Kazunori Tsuji

Toru Tanji

Isao Iwayama

Kiyonori Yokoi

Naoyuki Ohkubo

Atsuhiko Fujii

Takayuki Noguchi

Kazuhisa Yamauchi

Ryo Toyoshima

Fumio Ono

Hitoshi Kishida

Daisuke Iida

Yasuo Murayoshi

Naoyuki Ookubo

Hajime Shiraishi

Katsushi Matsuda

Tadanori Sano

Kazuhiro Nanjyo

Daisuke Komatsu

Masashi Nojiri

Yoshiki Kishikawa

Akira Tsuda

Tsuyoshi Nomura

Toshihiro Kume

Dai Kamogawa

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.

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.

An aluminum alloy wire is composed of an aluminum alloy. The 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 crystallization measurement region in a shape of a rectangle having a short side length of 50 &#x3bc;m and a long side length of 75 &#x3bc;m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 50 &#x3bc;m in a depth direction, and an average area of crystallized materials in the surface-layer crystallization measurement region is equal to or more than 0.05 &#x3bc;mand equal to or less than 3 &#x3bc;m.

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Osaka, Japan

Yoshihiro Nakai