| 摘要 |
PURPOSE:To obtain a high strength Al alloy having superior heat and wear resistances, satisfactory hot workability and machinability as well as superior strength at ordinary and high temps. by blending Al with specified amounts of Si and Cu. CONSTITUTION:The composition of an Al alloy is composed of,by weight, 12-30% Si, 2-10% Cu and the balance Al with inevitable impurities. The composition may further contain one or more kinds of alloying elements selected among 2-15% Mn, 0.5-8% Fe, 0.5-3% Ni, 0.1-1% Zr and 0.1-3% Cr.
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