The modifying experiments on hypereutectic Al - Sialloy were made by addition of sodium flux and P - Cu alloy.
用磷铜合金和四元钠盐变质剂对过共晶铝硅合金进行了变质处理试验。
2
The result indicated that: 1. P-RE combination modification can modify both the eutectic Si and primary Si of the hypereutectic Al-Sialloy at the same time.
研究结果表明：1 . P - RE复合变质对过共晶铝硅合金的初晶硅和共晶硅都具有良好的变质和细化作用。
3
The crown diameter of eutectic alSialloy piston has increased suddenly in twice, but the hyper eutectic alSialloy piston only once.