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1. 发明授权

US4808374A Method for producing aluminum alloy castings and the resulting product 失效
标题翻译：生产铝合金铸件的方法和所得产品
公开(公告)号：US4808374A
公开(公告)日：1989-02-28
申请号：US945241
申请日：1986-12-22
申请人： Yoji Awano , Yoshihiro Shimizu , Junichi Takabatake
发明人： Yoji Awano , Yoshihiro Shimizu , Junichi Takabatake
IPC分类号： C22C21/02 , C22F1/043 , C22C1/02
CPC分类号： C22F1/043 , C22C21/02
摘要： A method for producing aluminum alloy castings and the resulting product having improved toughness. An Al-Si or Al-Si-Cu alloy containing 4 to 24 wt % of silicon, iron and other incidental impurities, the balance being aluminum is melted, and the melt is heated to a temperature between 780.degree. C. and 950.degree. C. The melt is poured into a mold and there solidified. A solution heat treatment and aging are then conducted. The process is suitable for an alloy containing 0.25 to 1.4 wt % of iron. In a preferred embodiment, the alloy consists essentially of 6 to 12 wt % Si, 2 wt % Cu, 0.2 to 0.4 wt % Mg and other incidental impurities, the balance being aluminum. The solution heat treatment is preferably carried out by heating between 525.degree. 545.degree. C. for a period of 1 to 5 hours.
摘要翻译：一种生产铝合金铸件的方法，所得产品具有改进的韧性。含有4〜24重量％的硅，铁和其他附带杂质的Al-Si或Al-Si-Cu合金，余量由铝熔化，将熔体加热至780℃至950℃ 将熔体倒入模具中固化。然后进行固溶热处理和老化。该方法适用于含0.25-1.4％（重量）铁的合金。在优选的实施方案中，合金基本上由6-12重量％的Si，2重量％的Cu，0.2-0.4重量％的Mg和其它附带的杂质组成，余量为铝。固溶热处理优选通过在525°545℃之间加热1〜5小时的时间。

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