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发明申请
US20100296964A1 ALUMINUM ALLOY FOR CASTING HAVING HIGH RIGIDITY AND LOW LINEAR EXPANSION COEFFICIENT 审中-公开
具有高刚性和低线性膨胀系数的铝合金

ALUMINUM ALLOY FOR CASTING HAVING HIGH RIGIDITY AND LOW LINEAR EXPANSION COEFFICIENT
摘要：
[Objectives] An aluminum alloy for casting with excellent rigidity and having a low coefficient of linear expansion, and at the same time, does not have a high cost, and has a few restrictions at the time of recycling.[Means for Achieving Objectives] An aluminum alloy for casting with excellent rigidity and having a low coefficient of linear expansion containing 13-25% by mass of silicon, 2-8% by mass of copper, 0.5-3% by mass of iron, 0.3-3% by mass of manganese, 0.001-0.02% by mass of phosphorus, and the remainder comprising aluminum and inevitable impurities, wherein the total amount of iron and manganese is 3.0% by mass or greater. Said alloy may further contain 0.5-6% by mass of nickel, and the total amount of iron, manganese, and nickel may be 3.0% by mass or greater. Further, said alloy may further contain one or more of 0.1-1.0% by mass of chromium, 0.05-1.5% by mass of magnesium, 0.01-1.0% by mass of titanium, 0.0001-1.0% by mass of boron, 0.1-1.0% by mass of zirconium, 0.1-1.0% by mass of vanadium, or 0.01-1.0% by mass of molybdenum.
摘要（中）：

[目的]具有优异的刚性和低膨胀系数的铸造用铝合金，同时不具有高成本，并且在回收时具有很少的限制。 实现目标的手段具有优异的刚性并且具有低的线膨胀系数的铝合金，其含有13-25质量％的硅，2-8质量％的铜，0.5-3质量％的铁， 0.3-3质量％的锰，0.001-0.02质量％的磷，其余为铝和不可避免的杂质，其中铁和锰的总量为3.0质量％以上。 所述合金还可以含有0.5-6质量％的镍，铁，锰和镍的总量可以为3.0质量％以上。 此外，所述合金还可以含有0.1〜1.0质量％的铬，0.05〜1.5质量％的镁，0.01〜1.0质量％的钛，0.0001〜1.0质量％的硼，0.1〜1.0质量％ 锆，质量百分比为0.1〜1.0质量％，钼为0.01〜1.0质量％。

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