Aluminum alloy for a vehicle cylinder bushing and a method for producing a vehicle cylinder bushing with the use of the same

摘要

The present invention is directed to an aluminum alloy including an aluminium alloy as a base component, silicon, copper, magnesium, iron, manganese, zinc, nickel and the like in a predetermined composition ratio, and to a method for manufacturing a vehicle cylinder bushing, the excellent wear resistance and heat resistance under use of the aluminium alloy.The process for the production of a vehicle cylinder bushing comprises the steps of: adding 50 ~ 500 ppm of phosphorus (p) to the aluminum alloy, while a temperature of the aluminum alloy in the case of 700 ~ 800°C. in a holding furnace is maintained, stabilizing the molten aluminum alloy including of the phosphorus (p) for 30 ~ 60 minutes in order to transform the molten aluminum alloy, and then continuous casting of the formed molten aluminum alloy in order to form a round iron bar; hot forging of the round iron in order to form a cylindrical bushing; and processing of a inner surface of the cylinder liner, with which an - and floating piston comes into contact, in order to make it possible for silicon particles protrude.