Manufacturing method of aluminum alloy conductive wire, aluminum alloy conductive wire, electric wire and wire harness using this

摘要

To provide a manufacturing method of an aluminum alloy conductive wire capable of simply manufacturing the aluminum alloy conductive wire having different tensile strength and elongation.MEANS: There is provided a manufacturing method of an aluminum alloy conductive wire including a rough drawing wire forming step for forming one kind of rough drawing line constituted by an aluminum alloy containing Si of 0.15 mass% to 0.25 mass%, Fe of 0.6 mass% to 0.9 mass%, Cu of 0.05 mass% to 0.15 mass%, Mg of 0.3 mass% to 0.55 mass%, Ti and V of total 0.015 mas% or less and the balance aluminum with inevitable impurities and a treatment step for obtaining the aluminum alloy conductive wire having different tensile strength and elongation by conducting one of a treatment process A described below or a treatment B described below on the rough drawing line. (treatment process A) a treatment process including a drawing process and a heat treatment process and conducting a solution heat treatment in one of heat treatment process. (treatment process B) a treatment process including a wire drawing process and a heat treatment process and conducting no solution heat treatment in any heat treatment process.SELECTED DRAWING: None