Sumitomo Electric Industries, Limited

Sumitomo (sei) Steel Wire Corp.

Sumitomo Rubber Industries Limited

Sumitomo Electric Tochigi Co., Ltd.

Sumitomo Wiring Systems, Limited

Nippon Steel Corporation

Autonetworks Technologies, Limited

Nhk Spring Co., Ltd.

Shinei Takamura

Hiromu Izumida

Nozomu Kawabe

Teruyuki Murai

Koji Fujisawa

Masumi Suzuki

Takumi Akada

Tetsuya Nakajima

Katsutoshi Iwamoto

Kenichi Yamashita

Takashi Tokuyama

Akihisa Hosoe

Noritoshi Takamura

Junichi Kodama

Takashi Yoshioka

Toshio Shimizu

Daigo Sato

Kazuaki Sugimura

Kenichi Shimizu

Kazuhiko Saito

Takaaki Enomoto

Akifumi Matsuoka

Hiroyuki Fujioka

A plurality of belt layersare superimposed in a radial direction. The belt layersinclude a plurality of steel cordsarranged in parallel in a row and rubber. The steel cordshave a 1&#xd7;4 structure in which four filamentsare twisted, and when a center-to-center distance between the steel cordsin at least two of the belt layersadjacent in the radial direction is T, and an average diameter of virtual circumscribed circles of the steel cordshaving the 1&#xd7;4 structure is D, 1.25&#x2264;T/D&#x2264;2.25.

Tire with specified belt layers of 1X4 steel cords

A copper-coated steel wire includes a core wire made of a steel and a coating layer made of copper or a copper alloy which covers an outer peripheral surface of the core wire. The coating layer includes an intermediate layer which is disposed in a region including the interface with the core wire and has a higher zinc concentration than a remaining region of the coating layer.

Copper-coated steel wire and stranded wire

There is provided a steel cord including a steel wire and a plating layer that covers the steel wire and has Cu, Zn, and Co, wherein Cu and Zn are alloyed and a region covered with Co and a region not covered with Co are mixed on the outermost surface of the plating layer.

Steel cord and method for producing the same

A tire having a rubber body in which a steel cord is embedded, wherein a layer composed of ZnCoO is formed at the interface between the steel cord and the rubber body and x+y is 5/6 or more and 1 or less.

Tire

A strand for a wiring harness includes a first element wire and a second element wire twisted around the first element wire and made of copper or a copper alloy. The first element wire includes a core portion made of stainless steel and a covering layer covering the core portion and made of copper or a copper alloy.

Strand for wiring harness and wiring harness

An object of the present invention is to improve machining speed by realizing both conductive properties and discharge performance with regard to an electrode wire for wire electric discharge machining, the electrode wire being obtained by plating a steel wire with a copper-zinc alloy. Another object is to suppress the occurrence of separation, cracking, and the like of plating in a wire-drawing step of an electrode wire. An electrode wire for wire electric discharge machining of the present invention includes a steel wire () serving as a core wire, and a plating layer () that covers the steel wire and that is composed of a copper-zinc alloy, in which an average zinc concentration of the plating layer is 60% to 75% by mass, a conductivity of the plating layer is 10% to 20% IACS, and a wire diameter is 30 to 200 &#x3bc;m.

Electrode wire for wire electric discharge machining, and method for producing same

Provided is a high-strength stainless steel spring exhibiting a good workability and having a high load characteristic. Thus, the high-strength stainless steel spring of the invention has an chemical component containing 0.04 to 0.08% by mass of C, 0.15 to 0.22% by mass of N, 0.3 to 2.0% by mass of Si, 0.5 to 3.0% by mass of Mn, 16 to 20% by mass of Cr, 8.0 to 10.5% by mass of Ni, 0.5 to 3.0% by mass of Mo, and the balance of Fe and inevitable impurities, and when the average diameter of the coil is represented by D and further the diameter of the steel wire is represented by d in the case that cross sections of the stainless steel wire are in a complete round form or the value obtained by subtracting the average coil diameter from the outer diameter of the coil is represented by d' in the case that the cross sections of the stainless steel wire are in a form other than the complete round form, the spring has a spring index D/d or D/d&#x2032; of 2 to 6.

High-strength stainless steel spring and method of manufacturing the same

A wire-harness use composite wire comprising a first element wire which comprises 0.01-0.25 mass % C, 0.01-0.25 mass % N, 0.5-4.0 mass % Mn, 16-20 mass % Cr,8.0-14.0 mass % Ni, and the balance of Fe and impurities and satisfies that a C+N content is in the range of 0.15 mass %&#x2266;C+N&#x2266;0.30 mass %, and a second element wire comprising at least one material selected from the group consisting of copper, copper alloy, aluminum, and aluminum alloy, the first element wire and the second element wire being twisted together.

Composite wire for wire-harness and process for producing the same

A lightweight insulated electric wire and an automobile wire harness using the same insulated electric wire where the insulated electric wire has a conductor portion including one or more first wires and one or more second wires, which are stranded together. The first wires are constituted by metal wires made from at least one type of metal selected from copper, copper alloy, aluminum and aluminum alloy. The second wires are constituted by metal wires different from the first wires and have a relative permeability of 4.0 or less.

Covered wire and automobile-use wire harness

Growing community of inventors

Itami, Japan

Shinei Takamura