CITY WATER APPLIANCE FORMED OF COPPER ALLOY CONTAINING LEAD WHERE ELUSION OF LEAD IS REDUCED

摘要

PROBLEM TO BE SOLVED: To surely prevent the elusion of lead from a surface of a water flow passage of a city water appliance formed of copper alloy containing lead such as brass and bronze by plating the water flow passage of the city water appliance formed of copper alloy containing lead. ;SOLUTION: A faucet metal is generally formed through casting or forging a copper alloy 1 such as bronze, and a lead 2 is added in the copper alloy 1 to improve the cuttability of the copper alloy 1 during the cutting in the manufacturing process. To prevent the lead from being eluded from a surface of a water flow passage of a city water appliance such as the faucet metal formed of copper alloy containing lead, the city water appliance is plated after pre-treatment for plating. In the plating method, non-electrolytic plating or electroplating can be used, including nickel plating, copper plating, tin plating, tin alloy plating and zinc plating.;COPYRIGHT: (C)1999,JPO