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研究了一种过共晶铝硅合金的复合细化变质剂 ,具有同时细化初晶硅和变质共晶硅的良好效果 ,变质处理的过共晶铝硅合金中的块状初晶硅最大尺寸和杆状共晶硅长度尺寸均小于 10 0 μm ,其力学性能超过了目前国内外相同成分的过共晶铝硅合金
A composite refinement modifier of hypereutectic Al-Si alloy has been studied, which has the good effect of simultaneously refining primary and modified eutectic silicon. The bulk primary silicon in the metamorphic Al-Si alloy has a maximum of Size and rod-shaped eutectic silicon length size of less than 10 0 μm, the mechanical properties of the same composition at home and abroad over hypereutectic Al-Si alloy