High-strength-conductivity copper alloy

Claim 1

A method of producing electrical parts such as switches, terminals and connectors, which comprises forming said electrical parts from a copper alloy having high strength and excellent electrical conductivity, corrosion resistance, and spring qualities, said alloy consisting of about 0.4-8 weight % nickel, about 0.1-3 weight % silicon, about 10-35 weight % zinc, concomitant impurities and the remainder copper.

Claim 2

A method of producing electrical parts such as switches, terminals and connectors, which comprises forming said electrical parts from a copper alloy having high strength and excellent electrical conductivity, corrosion resistance, and spring qualities, said alloy consisting of about 0.4-8 weight % nickel, about 0.1-3 weight % silicon, about 10-35 weight % zinc, concomitant impurities and the remainder copper.

Claim 3

A method of producing electrical parts such as switches, terminals and connectors, which comprises forming said electrical parts from a copper alloy having high strength and excellent electrical conductivity, corrosion resistance, and spring qualities, said alloy consisting of about 0.4-8 weight % nickel, about 0.1-3 weight % silicon, about 10-35 weight % zinc, concomitant impurities and the remainder copper, and said alloy further consisting of, as an accessory ingredient or ingredients, at least one element selected from the group consisting of: ______________________________________ about 0.001-0.1% by weight phosphorus about 0.001-0.1% by weight arsenic about 0.01-1% by weight titanium about 0.01-1% by weight chromium about 0.01-1% by weight tin about 0.01-1% by weight magnesium ______________________________________ said accessory ingredient or ingredients combined accounting for about 0.001-2% of the total weight of said alloy.

Claim 4

A method of producing electrical parts such as switches, terminals and connectors, which comprises forming said electrical parts from a copper alloy having high strength and excellent electrical conductivity, corrosion resistance, and spring qualities, said alloy consisting of about 0.4-8 weight % nickel, about 0.1-3 weight % silicon, about 10-35 weight % zinc, concomitant impurities and the remainder copper, and said alloy further consisting of, as an accessory ingredient or ingredients, at least one element selected from the group consisting of: ______________________________________ about 0.001-0.1% by weight phosphorus about 0.001-0.1% by weight arsenic about 0.01-1% by weight titanium about 0.01-1% by weight chromium about 0.01-1% by weight tin about 0.01-1% by weight magnesium ______________________________________ said accessory ingredient or ingredients combined accounting for about 0.001-2% of the total weight of said alloy.