Hitachi Metals, Ltd.

Hitachi Cable, Inc.

Proterial, Ltd.

Hitachi Cable Fine-tech, Ltd.

Hiromitsu Kuroda

Hideyuki Sagawa

Seigi Aoyama

Keisuke Fujito

Toru Sumi

Takayuki Tsuji

Tamotsu Sakurai

Detian Huang

Shohei Hata

Ryohei Okada

Kazuma Kuroki

Hiroshi Okikawa

Takashi Nemoto

Yuju Endo

Hiroshi Bando

Hideki Nonen

Atsushi Ootake

Tetsuya Tokumitsu

Syuji Kawasaki

Takanobu Watanabe

Yoshiki Nakade

Takamitsu Kimura

Yosuke Shiba

Hiroshi Matsuzaki

Yuichi Oda

Yuichi Komuro

Shingo Amamiya

Hiroyoshi Hiruta

Takashi Hayasaka

Ryuji Nakagawa

Kotaro Tanaka

Takaaki Ichikawa

Osamu Seya

Hajime Nishi

Hakaru Matsui

Masashi Arai

Ken Takahashi

Hiroyuki Akutsu

Iku Higashidani

Takayuki Tuji

Huang Detian

Shinichi Masui

Takahiro Sato

Osamu Ikeda

Hideaki Takehara

Masahide Okamoto

Masanori Kobayashi

Yuzo Ito

Kazuya Nishi

Hiroshi Komuro

Toshiyuki Horikoshi

Masayoshi Goto

Takumi Sato

Kazuhisa Takahashi

Atsuro Yaguchi

Takuto Yamaguchi

Minoru Takatsuto

Hidenori Abe

Xinweilong Li

Katsunori Sawahata

Yukio Ito

Atsushi Ohtake

Setsuo Kobayashi

Hiroaki Numata

Takahiko Hanada

Kuniaki Kimoto

Tosiyuki Horikoshi

Taikan Aoyagi

Humio Horii

Tetsuya Tokumitu

Nobuhito Sakuyama

Shigeru Okamoto

A cable is provided with a cable core including one or more electric wires, a shield layer provided to cover around the cable core and composed of a laterally wound shield formed by winding metal wire strands helically, and a sheath provided to cover around the shield layer. The metal wire strands are semi-hard copper alloy wires, and P/PD, which is the ratio of the winding pitch P in the laterally wound shield to the pitch diameter PD of the shield layer, is less than 9.9.

Cable

A copper alloy wire is composed of a copper alloy including indium of 0.3 mass % or more and 0.65 mass % or less, and has 0.2% proof stress of 300 MPa or more, electrical conductivity of 80% IACS or more, and elongation of 7% or more.

Copper alloy wire, plated wire, electric wire and cable using these

A cable includes: a cable core including one or more electrical wires; a shield layer made of a metallic wire arranged on a periphery of the cable core; and a sheath arranged on a periphery of the shield layer. The metallic wire is made of a copper alloy wire made of a copper alloy containing indium, a content of which is equal to or more than 0.3 mass % and equal to or less than 0.65 mass %, and the metallic wire has tensile strength that is equal to or higher than 350 MPa and elongation that is equal to or higher than 7%.

A signal transmission cable includes a conductor, an insulator covering a periphery of the conductor, and a shield layer covering a periphery of the insulator. The shield layer includes a lateral winding shield portion composed of a plurality of metal wires being helically wrapped around the periphery of the insulator to cover the periphery of the insulator, and a batch plating portion composed of a hot dip plating, which is covering a periphery of the lateral winding shield portion. Where a diameter of the metal wire is d and a thickness of the batch plating portion from an outer surface of the metal wire is t, a formula t<0.5d is met over an entire cable circumference. When the signal transmission cable is bent in a U-shape within a range of a bending strain of 35% or less, no cracks occur in the batch plating portion.

Signal transmission cable and cable assembly

A coaxial cable is composed of a conductor, an insulator covering a periphery of the conductor, a shield layer covering a periphery of the insulator, and a sheath covering a periphery of the shield layer. The shield layer is configured to include a lateral winding shielding portion with a plurality of metal wires being helically wrapped around the periphery of the insulator, and a batch plating portion made of a hot-dip plating covering respective peripheries of the lateral winding shielding portion. The shield layer includes a joining portion where the metal wires adjacent to each other in a circumferential direction are joined with each other with the batch plating portion at a spaced portion where the adjacent metal wires are spaced apart from each other, and the non-joining portion where the metal wires adjacent to each other in the circumferential direction are not joined with each other with the batch plating portion at the spaced portion. A length of the non-joining portion along a cable longitudinal direction is shorter than a winding pitch of the lateral winding shielding portion.

Coaxial cable and cable assembly

A coaxial cable is composed of a conductor, an insulator around the conductor, a shield layer around the insulator, and a sheath around the shield layer. The shield layer includes a lateral winding shielding portion with metal wires helically wrapped around the insulator, and a batch plating portion covering the lateral winding shielding portion. The shield layer includes a joining portion where adjacent metal wires are joined with each other with the batch plating portion at a gap between the adjacent metal wires, and inner peripheral portions where the metal wires are not being covered with the batch plating portion and plating layers are exposed. The joining portion is provided between adjacent inner peripheral portions. When an elemental analysis is performed in any analysis region having an area of 0.015 mmor more and 0.300 mmor less in an insulator-side surface of the shield layer which is stripped from the insulator, an area of a chlorine present region where chlorine is present in the analysis region is 5% or less of an area of the analysis region.

A coaxial cable includes a conductor, an electrically insulating member provided over a periphery of the conductor, a shielding layer composed of served shields formed by helically wrapping a plurality of metal wires around the electrically insulating member, and a sheath provided around the shielding layer. The electrically insulating member includes indentations on portions of its surface to be brought into contact with and mated to the metal wires respectively. The shielding layer includes portions in respective circumferential directions of the plurality of metal wires being brought into contact with the electrically insulating member are mated to the indentations, respectively, on the electrically insulating member, and adjacent ones of the metal wires in a circumferential direction of the shielding layer are in surface contact with each other.

Coaxial cable, coaxial cable producing method, and cable assembly

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

A coaxial cable is composed of a conductor, an electrical insulating member covering a periphery of the conductor, a shield layer covering a periphery of the electrical insulating member, and a sheath covering a periphery of the shield layer. The shield layer is configured to include a lateral winding shielding portion with a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member, and a batch plating portion made of a hot-dip plating covering respective peripheries of the lateral winding shielding portion. The shield layer includes an outer peripheral portion, in which the metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the metal wires are not covered with the batch plating portion. The outer peripheral portion of the shield layer includes intermetallic compounds between the metal wires and the batch plating portion.

A copper alloy wire is made of a copper alloy, and the copper alloy contains indium, a content of which is equal to or more than 0.3 mass % and equal to or less than 0.45 mass %. A tensile strength of the copper alloy wire is equal to or higher than 800 MPa, and an electrical conductivity of the same is equal to or higher than 80% IACS.

Copper alloy wire, plated wire, electrical wire and cable

An insulated wire includes a conductor including a copper material, and an insulation layer that is formed on an outer periphery of the conductor. A restoring temperature Tof the conductor is not more than 130&#xb0; C. The restoring temperature Tis a temperature that is needed to restore a conductivity of the conductor after a coil processing to a conductivity of the conductor before the coil processing.

Insulated wire, coil and method for manufacturing the coil

A copper alloy material manufacturing equipment for manufacturing a copper alloy material by continuously casting molten copper. The equipment includes an element adding means for adding a metal element to the molten copper, a tundish for holding the molten copper containing the metal element, a pouring nozzle connected to the tundish to feed the molten copper from the tundish, and a trapping member arranged inside the tundish and including a same type of material as at least one of an oxide of the metal element, a nitride of the metal element, a carbide of the metal element and a sulfide of the metal element.

Equipment and method for manufacturing copper alloy material

A copper alloy material production method is provided. A copper raw material including not higher than 30 ppm by mass of oxygen is melted to form a molten copper. Not lower than 4 ppm by mass and not higher than 55 ppm by mass of titanium is added to the molten copper. After the adding of the titanium, not lower than 100 ppm by mass and not higher than 7000 ppm by mass of magnesium is added.

Copper alloy material and production method therefor

An electrical discharge machining electrode wire includes a core including a copper or a copper alloy, and a covering layer that covers a periphery of the core and includes a zinc. The covering layer includes an outermost layer consisting of an &#x3b5;-phase of a copper-zinc based alloy. The outermost layer has a Cu concentration of 12 to 20 mass % and a variation range within 5 mass % in the Cu concentration in a longitudinal direction of the electrode wire.

Electric discharge machining electrode wire and manufacturing method therefor

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Hitachi, Japan

Hiromitsu Kuroda