Abstract: A method for manufacturing an aluminum wire is provided. The aluminum wire includes an inner-layer conductor having one or a plurality of inner-layer alloy wires including aluminum and an outer-layer conductor having a plurality of outer-layer alloy wires including aluminum and provided on the inner-layer conductor. The method includes an outer-layer twisting step of twisting, over the inner-layer conductor, the outer-layer alloy wires provided on the inner-layer conductor, and an outer-layer rotational compression step of compressing the outer-layer alloy wires twisted in the outer-layer twisting step while being rotated in the same direction as the direction of the twisting in the outer-layer twisting step.

Abstract: In a wire harness (1) to be used in a place where a temperature of a use environment is 100° C. or higher, at least one electric wire of a plurality of electric wires (10) is an aluminum electric wire (11) including a conductor core wire formed from pure aluminum or an aluminum alloy. The aluminum electric wire (11) is covered with a foamed body (20).

Abstract: A method of manufacturing an aluminum alloy strand from an aluminum alloy containing: not less than 0.001 mass % and less than 0.009 mass % of Ti, 0.4 to 0.9 mass % of Fe, 0.005 to 0.008 mass % of Zr, 0 to 0.02 mass % of Si, and at least one of 0 to 0.05 mass % of Cu and 0.04 to 0.45 mass % of mg with a residue being composed of aluminum and inevitable impurities, the method comprising the steps of: (1) a step of forming a wire rod using the aluminum alloy; (2) a step of drawing the wire rod to a desired final diameter without performing heat treatment; and (3) a step of continuous annealing or batch annealing the drawn wire material.

Abstract: The wire harness according to the present invention comprises electric wires each including a conductor. The electric wire is configured of a low-current electric wire used for a power source circuit, a high-current/ground electric wire used for a high-current power source circuit or a ground circuit and allowing a larger current than that of the low-current electric wire to flow, and a signal electric wire used for a signal circuit. The low-current electric wire and the high-current/ground electric wire are formed of an aluminum electric wire in which the conductor is made of aluminum or an aluminum alloy. The signal electric wire is formed of a copper electric wire in which the conductor is made of copper or a copper alloy.

Abstract: There is provided a terminal-equipped wire able to reduce a production cost and satisfy water proof and corrosion proof performances at a terminal section of the electric wire. The terminal-equipped wire includes: an electric wire having a conductor in an insulating coating; and a terminal fitting crimped to a terminal section of the electric wire. The terminal fitting includes: an electrical contact portion for connecting with a terminal fitting of the mating connector; and a wire connection portion for connecting with the terminal section of the electric wire continuing to the electrical contact portion. The wire connection portion includes: a grip for gripping the terminal section of the electric wire along a circumferential direction of the electric wire; and a projection penetrating the insulating coating. The conductor and the terminal fitting have electrical continuity with each other via the projection.

Abstract: A method for manufacturing an aluminum wire is provided. The aluminum wire includes an inner-layer conductor having one or a plurality of inner-layer alloy wires including aluminum and an outer-layer conductor having a plurality of outer-layer alloy wires including aluminum and provided on the inner-layer conductor. The method includes an outer-layer twisting step of twisting, over the inner-layer conductor, the outer-layer alloy wires provided on the inner-layer conductor, and an outer-layer rotational compression step of compressing the outer-layer alloy wires twisted in the outer-layer twisting step while being rotated in the same direction as the direction of the twisting in the outer-layer twisting step.

Abstract: There is provided a terminal-equipped wire able to reduce a production cost and satisfy water proof and corrosion proof performances at a terminal section of the electric wire. The terminal-equipped wire includes: an electric wire having a conductor in an insulating coating; and a terminal fitting crimped to a terminal section of the electric wire. The terminal fitting includes: an electrical contact portion for connecting with a terminal fitting of the mating connector; and a wire connection portion for connecting with the terminal section of the electric wire continuing to the electrical contact portion. The wire connection portion includes: a grip for gripping the terminal section of the electric wire along a circumferential direction of the electric wire; and a projection penetrating the insulating coating. The conductor and the terminal fitting have electrical continuity with each other via the projection.

Abstract: The wire harness according to the present invention comprises electric wires each including a conductor. The electric wire is configured of a low-current electric wire used for a power source circuit, a high-current/ground electric wire used for a high-current power source circuit or a ground circuit and allowing a larger current than that of the low-current electric wire to flow, and a signal electric wire used for a signal circuit. The low-current electric wire and the high-current/ground electric wire are formed of an aluminum electric wire in which the conductor is made of aluminum or an aluminum alloy. The signal electric wire is formed of a copper electric wire in which the conductor is made of copper or a copper alloy.