The Furukawa Electric Co., Ltd.

Furukawa Automotive Systems Inc.

Shigeki Sekiya

Kengo Mitose

Sho Yoshida

Kyota Susai

Kuniteru Mihara

Ryosuke Matsuo

Akira Tachibana

Yasushi Kihara

Hidemichi Fujiwara

An aluminum wire rod has a composition which contains 3.00% by mass or less of Fe and 0.20% by mass or less of Si, and additionally contains a total of from 0.010% by mass to 0.500% by mass of one or more elements selected from the group consisting of Cu, Mn, Mg, Zn, Ti, B, V and Ni, with the balance being made up of Al and unavoidable impurities. With respect to this aluminum wire rod, in a 25 μm×60 μm region in a cross-section that is perpendicular to the longitudinal direction, the total length of the portions where the crystal misorientation with respect to an adjacent crystal grain is more than 1° but not more than 15° is from 0.6 mm to 4.8 mm; and the electrical conductivity is 55% IACS or more.

Aluminum wire, aluminum stranded wire, coated electric wire, coated electric wire with crimp-style terminal, and CVT cable or CVT cable with crimp-style terminal

A copper alloy wire rod has a chemical composition comprising Ag: 0.1 to 6.0 mass % and P: 0 to 20 mass ppm, the balance being copper with inevitable impurities. In a cross section parallel to a longitudinal direction of the wire rod, a number density of second phase particles each having an aspect ratio of greater than or equal to 1.5 and a size in a direction perpendicular to the longitudinal direction of the wire rod of less than or equal to 200 nm is greater than or equal to 1.4 particles/&#x3bc;m.

Copper alloy wire rod

A copper alloy wire rod having an alloy composition containing 0.5 to 6.0% by mass of Ag, 0 to 1.0% by mass of Mg, 0 to 1.0% by mass of Cr, and 0 to 1.0% by mass of Zr, with the balance being Cu and inevitable impurities, wherein an average closest particle distance of second phase particles having a particle size of 200 nm or less is 580 nm or less in a cross section perpendicular to a longitudinal direction of the wire rod.

An aluminum alloy conductor wire has a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.20 mass %, Fe: 0.01-1.40 mass %, Zr: 0.01-0.50 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, where Ti, B, Cu, Ag, Au, Mn, Cr, Hf, V, Sc, Co and Ni are arbitrary additive components of which at least one component may be contained or none of the components may be contained. A density of a compound having a particle size of 0.5-5.0 &#x3bc;m and containing Fe is 1 to 300 particles/10000 &#x3bc;m. Mg/Si ratio, which is a ratio of Mg in mass % to Si in mass %, is greater than 1.

Aluminum alloy conductor wire, aluminum alloy stranded wire, coated wire, wire harness and method of manufacturing aluminum alloy conductor wire

The present disclosure provides an aluminum alloy wire or the like which can secure a high conductivity and a moderately low yield strength, and realize both a high elongation and a moderate tensile strength. An aluminum alloy wire of the present disclosure contains 0.10 to 1.00% by mass of Mg, 0.10 to 1.20% by mass of Si, 0.10 to 1.40% by mass of Fe, 0 to 0.10% by mass of Ti, 0 to 0.030% by mass of B, 0 to 1.00% by mass of Cu, 0 to 1.00% by mass of Mn, 0 to 1.00% by mass of Cr, 0 to 0.50% by mass of Zr, and 0 to 0.50% by mass of Ni, the balance being Al and 0.30% by mass or less of impurities. Coarse crystal grains are present in a vertical cross-sectional structure of the wire taken in a lengthwise direction of the wire. The greatest grain size of the coarse crystal grains as measured in the lengthwise direction of the wire is equal to or greater than a diameter of the wire. A proportion of an area of the coarse crystal grains to the total of the areas of all the crystal grains within a range of the vertical cross-sectional structure in which the vertical cross-sectional structure is measured, is 50% or more. Elongation of the wire is 10% or more.

Aluminum alloy wire, aluminum alloy stranded wire, covered electric wire, and wire harness

A copper alloy wire rod containing Ag: 0.5 wt % or more and 6 wt % or less and the balance including inevitable impurities and Cu, in which, on a cross section parallel to a longitudinal direction of the copper alloy wire rod, within a range observed with a visual field of 1.7 &#x3bc;m in a direction perpendicular to the longitudinal direction and 2.3 &#x3bc;m in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular range that is a rectangular range having a width perpendicular to the longitudinal direction of 0.2 &#x3bc;m and a length parallel to the longitudinal direction of 2.3 &#x3bc;m and entirely includes five or more second phase particles containing Ag and having a maximum length in the longitudinal direction of less than 300 nm.

Copper alloy wire rod and method for manufacturing copper alloy wire rod

An aluminum alloy wire rod having a composition including Mg: 0.10-1.00 mass %, Si: 0.10-1.00 mass %, Fe: 0.01-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Sn: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, wherein a ratio of (standard deviation of crystal grain size of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is less than or equal to 0.57, and a ratio of (diameter of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is greater than or equal to 10.

Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire and wire harness, and method of manufacturing aluminum alloy wire rod

A covered wire includes a wire including a metal, a covering layer provided at a periphery of the wire, and inclusions including at least one of a metal and a metal oxide. The inclusions are provided between the wire and the covering layer or in the covering layer, and an average size of each of the inclusions is less than a thickness of the covering layer.

Covered wire, covered wire with terminal, wire harness and method of manufacturing covered wire

An aluminum alloy wire rod having a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.2 mass %, Fe: 0.10-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, wherein a number of compound particles present on a surface and having a diameter of greater than or equal to 1 &#x3bc;m in terms of equivalent circle diameter is less than or equal to one per 100 &#x3bc;m, and a tensile strength is greater than or equal to 200 MPa.

Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire, and wire harness, and method of manufacturing aluminum alloy wire rod

An aluminum alloy wire rod includes Mg: 0.1-1.0 mass %, Si: 0.1-1.2 mass %, Fe: 0.10-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities. In a cross section parallel to a wire rod lengthwise direction and including a center line of the wire rod, no void having an area greater than 20 &#x3bc;mis present, or even in a case where at least one void having an area greater than 20 &#x3bc;mis present, a presence ratio of the at least one void per 1000 &#x3bc;mis on average in a range of less than or equal to one void/1000 &#x3bc;m.

Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire, wire harness, and method of manufacturing aluminum alloy wire rod

An aluminum alloy wire rod comprising 0.1-1.0 mass % Mg; 0.1-1.0 mass % Si; 0.01-1.40 mass % Fe; 0.01-0.50 mass % Zr; 0.000-0.100 mass % Ti; 0.000-0.030 mass % B; 0.00-1.00 mass % Cu; 0.00-0.50 mass % Ag; 0.00-0.50 mass % Au; 0.00-1.00 mass % Mn; 0.00-1.00 mass % Cr; 0.00-0.50 mass % Hf; 0.00-0.50 mass % V; 0.00-0.50 mass % Sc; 0.00-0.50 mass % Co; and 0.00-0.50 mass % Ni, a Mg/Si ratio being greater than 1, wherein a dispersion density of an MgSi compound having a particle size of 0.5 &#x3bc;m to 5.0 &#x3bc;m is less than or equal to 3.0&#xd7;10particles/&#x3bc;m, and in the sectional structure, a concentration of each of Mg and Si other than a compound is less than or equal to 2.00 mass %.

Aluminum alloy wire rod, aluminum alloy stranded wire, coated wire, wire harness and manufacturing method of aluminum alloy wire rod

An aluminum alloy wire rod has a composition including Mg: 0.10-1.0 mass %, Si: 0.10-1.20 mass %, Fe: 0.01-1.40 mass %, Ti: 0.000-0.100 mass %, B: 0.000-0.030 mass %, Cu: 0.00-1.00 mass %, Ag: 0.00-0.50 mass %, Au: 0.00-0.50 mass %, Mn: 0.00-1.00 mass %, Cr: 0.00-1.00 mass %, Zr: 0.00-0.50 mass %, Hf: 0.00-0.50 mass %, V: 0.00-0.50 mass %, Sc: 0.00-0.50 mass %, Co: 0.00-0.50 mass %, Ni: 0.00-0.50 mass %, and the balance: Al and incidental impurities, Mg/Si mass ratio being 0.4 to 0.8. The aluminum alloy wire rod has a tensile strength of greater than or equal to 200 MPa, an elongation of greater than or equal to 13%, a conductivity of 47% IACS, and a ratio (YS/TS) of 0.2% yield strength (YS) to the tensile strength (TS) of less than or equal to 0.7.

Aluminum alloy wire rod, alluminum alloy stranded wire, coated wire, wire harness, method of manufacturing aluminum alloy wire rod, and method of measuring aluminum alloy wire rod

An electric wire apparatus includes an electric wire including an aluminum alloy wire rod having an outer periphery portion coated, and a crimp terminal crimped to an end portion of the electric wire, the crimp terminal having a barrel portion crimped with the aluminum alloy wire rod, the barrel portion having a one-end closed tubular shape. The aluminum alloy wire rod has a composition including 0.10 mass % to 1.00 mass % of magnesium (Mg), 0.10 mass % to 1.00 mass % of silicon (Si), 0.01 mass % to 2.50 mass % of iron (Fe), 0.000 mass % to 0.100 mass % of titanium (Ti), 0.000 mass % to 0.030 mass % of boron (B), 0.00 mass % to 1.00 mass % of copper (Cu), 0.00 mass % to 0.50 mass % of silver (Ag), 0.00 mass % to 0.50 mass % of gold (Au), 0.00 mass % to 1.00 mass % of manganese (Mn), 0.00 mass % to 1.00 mass % of chromium (Cr), 0.00 mass % to 0.50 mass % of zirconium (Zr), 0.00 mass % to 0.50 mass % of hafnium (Hf), 0.00 mass % to 0.50 mass % of vanadium (V), 0.00 mass % to 0.50 mass % of scandium (Sc), 0.00 mass % to 0.50 mass % of cobalt (Co), 0.00 mass % to 0.50 mass % of nickel (Ni), and the balance including aluminum and inevitable impurities.

Electric wire apparatus

An aluminum alloy conductor wire has a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.20 mass %, Fe: 0.01-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, where Ti, B, Cu, Ag, Au, Mn, Cr, Zr, Hf, V, Sc, Co and Ni are arbitrary additive components of which at least one component may be contained or none of the components may be contained. A density of a compound having a particle size of 0.5-5.0 &#x3bc;m and containing Fe is 1 to 300 particles/10000 &#x3bc;m.

An aluminum alloy wire rod has a composition including 0.1-1.0 mass % Mg; 0.1-1.0 mass % Si; 0.01-1.40 mass % Fe; 0.000-0.100 mass % Ti; 0.000-0.030 mass % B; 0.00-1.00 mass % Cu; 0.00-0.50 mass % Ag; 0.00-0.50 mass % Au; 0.00-1.00 mass % Mn; 0.00-1.00 mass % Cr; 0.00-0.50 mass % Zr; 0.00-0.50 mass % Hf; 0.00-0.50 mass % V; 0.00-0.50 mass % Sc; 0.00-0.50 mass % Sn; 0.00-0.50 mass % Co; 0.00-0.50 mass % Ni; and the balance being Al and inevitable impurities, and an area fraction of a region in which an angle formed by a longitudinal direction of the aluminum alloy wire rod and a &#x3c;111&#x3e; direction of a crystal is within 20&#xb0; is greater than or equal to 20% and less than or equal to 65%.

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Tokyo, Japan

Shigeki Sekiya