| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum-silicon alloy having reduced microporosity. SOLUTION: The aluminum-silicon alloy die cast alloy fundamentally comprises, in mass percent: 6 to 20% silicon, 0.05 to 0.10% strontium, 0.40% maximum iron, 4.5% maximum copper, 0.5% maximum manganese, 0.6% maximum magnesium, 3.0% maximum zinc and the balance aluminum. The alloy has a very low iron content and relatively high strontium content that prevents soldering to dies. The alloys of the present invention also have a modified eutectic silicon and modified iron morphology, when iron is present, resulting in low microporosity and high impact properties. COPYRIGHT: (C)2006,JPO&NCIPI
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