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US 4,233,067 AGranted
Soft copper alloy conductors
AssigneeSumitomo Electric Industries, Ltd.
InventorKazuo Sawada
Life of this patent
Estimating the term…
Abstract
Soft copper alloy conductors having a 0.2% proof stress of 12 kg/mm.sup.2 or less which contains 5-200 p.p.m. of calcium, the balance substantially consisting of copper, and hot-dip coated copper alloy conductors made by coating the surface of copper alloy conductors of said composition with tin or lead or their alloy by hot-dipping, and a method of manufacturing said copper alloy conductors.
Claims2
Soft copper alloy conductors which consist essentially of 5-200 ppm of calcium, the balance being substantially copper, and having a 0.2% proof stress which is 12 kg/mm.sup.2 or less.
Dependencies are inferred from the claim text.