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发明授权
CN105970055B 一种替代QT450空气帽的铝合金材料及其离心铸造方法 失效 - 权利终止

一种替代QT450空气帽的铝合金材料及其离心铸造方法
摘要：
本发明公开一种替代QT450空气帽的铝合金材料，其特征在于：主成分含量按重量百分比计：镁：0.05%‑0.5%，锰Mn:≤2%，镉Cd:0.05%～0.5%，铜Cu:4.2%～8.0%且Cu≥0.8Mn+4.05%；路易斯酸碱对总量1%×10‑4～2.0%，合金平均晶粒度＜120微米，余量为铝Al。
摘要（英）：

The invention discloses an air cap aluminum alloy material replacing QT450. The air cap aluminum alloy material replacing QT450 is characterized by comprising the following main ingredients in percentages by weight: 0.05%-0.5% of magnesium, less than or equal to 2% of Mn, 0.05%-0.5% of Cd, 4.2%-8.0% of Cu, and the balance of Al, wherein Cu is greater than or equal to 0.8 Mn+ 4.05%; the total amount of Lewis acid and base pairs is 1%* 10 (-4)-2.0%; and the mean grain size of alloy is smaller than 120 micrometers.

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