METHOD FOR MANUFACTURING MAIN BODY OF WATER-SAVING DEVICE AND MAIN BODY OF WATER-SAVING DEVICE

摘要

The present invention relates to a method for manufacturing the main body of a water-saving device, and the manufacturing method comprises the steps of: forming a faucet body (10) equipped at an upper portion with a valve (V) for blocking water flow, lever (L) for adjusting the valve, and a water outlet (16a) which integrates a hot water inlet (12a) and a cold water inlet (14a) on either side thereof, wherein the faucet body (10) is made of a brass material capable of being formed into integral portions divided into a base body (11) in which the valve is installed, a first assembly (12) in which is formed hot water inlet (12a), a second assembly (14) in which is formed cold water inlet (14a) and a third assembly (16) in which is formed water outlet (16a); double injection molding a polyamide resin composition into the base body (11) and the first through third assemblies (12, 14, 16) to form water outlets (22a, 24a, 26a, 28a) and connection assemblies (22b, 24b, 26b, 28b) inside molding assemblies (22, 24, 26, 28); welding base body (11) and the first through third assemblies (12, 14, 16) to form one faucet body (10); and plating nickel-chromium onto the exterior of the faucet body to reinforce and cover bonded areas, wherein the double injection of the polyamide resin composition into the interior of the faucet body made of a brass material renders the interior safe for humans, provides heat resistance and heat blocking effects, facilitates workability in manufacturing, protects against corrosion, and provides prevention against heat burns and frost damage.