ALUMINUM ELECTRIC WIRE FOR AN AUTOMOBILE AND A METHOD FOR PRODUCING THE SAME
First Claim
1. A method for producing an aluminum electric wire for an automobile, the method comprising the steps of:
- casting an aluminum alloy that is prepared by rapidly solidifying a molten aluminum alloy containing 0.90 to 1.20 mass % Fe, 0.10 to 0.25 mass % Mg, and a balance being Al and incident impurities;
producing an aluminum alloy conductor from the aluminum alloy by subjecting the aluminum alloy to plasticity processing;
making the aluminum alloy conductor into an annealed conductor by subjecting the aluminum alloy conductor to annealing; and
covering the aluminum alloy conductor with an insulating material,wherein the annealed conductor made up of the elemental wires made of the aluminum alloy has a tensile strength of 110 MPa or more, a breaking elongation of 15% or more, and an electric conductivity of 58% IACS or more.
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Abstract
An aluminum electric wire includes an annealing conductor that is made up of elemental wires made of an aluminum alloy containing 0.90-1.20 mass % Fe, 0.10-0.25 mass % Mg, 0.01-0.05 mass % Ti, 0.0005-0.0025 mass % B, and the balance being Al and has a tensile strength of 110 MPa or more, a breaking elongation of 15% or more, and an electric conductivity of 58% IACS or more, and an insulating material covering the conductor. The wire is produced by casting an aluminum alloy prepared by rapidly solidifying a molten aluminum alloy having the above composition, producing the wires by subjecting the alloy to plasticity processing, producing the conductor by bunching the wires, subjecting the wires or the conductor to annealing at 250° C. or higher, and then covering the conductor with the insulator.
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Citations
24 Claims
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1. A method for producing an aluminum electric wire for an automobile, the method comprising the steps of:
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casting an aluminum alloy that is prepared by rapidly solidifying a molten aluminum alloy containing 0.90 to 1.20 mass % Fe, 0.10 to 0.25 mass % Mg, and a balance being Al and incident impurities; producing an aluminum alloy conductor from the aluminum alloy by subjecting the aluminum alloy to plasticity processing; making the aluminum alloy conductor into an annealed conductor by subjecting the aluminum alloy conductor to annealing; and covering the aluminum alloy conductor with an insulating material, wherein the annealed conductor made up of the elemental wires made of the aluminum alloy has a tensile strength of 110 MPa or more, a breaking elongation of 15% or more, and an electric conductivity of 58% IACS or more. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification