| 简介 |
PROBLEM TO BE SOLVED : To provide a heat resistant aluminum alloy wire which has prescribed tensile strength and electric conductivity when used as an electric wire etc. in a high temperature environment, and to provide a method for producing the same.
SOLUTION : The heat resistant aluminum alloy wire has a composition comprising, by weight, 0.20 to 0.40% Zr, 0.10 to 0.40% Fe, 0.003 to 0.10% alkaline-earth metal elements and 0.005 to 0.02% Ti, and the balance Al with impurities. The method for producing the heat resistant aluminum alloy wire comprises : a casting step where an aluminum alloy having a composition comprising, by weight, 0.20 to 0.40% Zr, 0.10 to 0.40% Fe, 0.003 to 0.10% alkaline-earth metal elements, and the balance Al with impurities is melted to obtain the molten metal of the aluminum alloy, and, while Ti is added to the molten metal of the aluminum alloy so as to be 0.005 to 0.02%, casting is performed; and a plastic working step and an aging treatment step performed after the casting step.
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