Patent ID: 7695577

Claim:
A die cast aluminum alloy sliding member excelling in wear resistance, consisting of: 12.0-14.0 mass % of Si; 2.0-5.0 mass % of Cu; 0.1-1.0 mass % of Mg; 0.9-1.3 mass % of Mn; 0.10-0.5 mass % of Cr; 0.05-0.20 mass % of Ti; 0.5-1.3 mass % of Fe; 0.003-0.02 mass % of P; and a remainder of Al and unavoidable impurities; wherein: a Ca content is limited to less than 0.005 mass %; and the alloy includes less than 20/mm 2 of primary crystal Si grains with a grain size of at least 20 μm at a depth of 1.5 mm from the cast surface.