熔体混合处理作为一种工艺简单、成本低廉、对环境影响较小的生产工艺,为优化Al-Si合金凝固组织提供了一条新的思路。对熔体混合处理工艺进行了简要的介绍,综述了国内外利用熔体混合处理工艺细化Al-Si合金凝固组织、优化初生相分布及形貌的研究现状,并对其作用机制进行了概述,最后对其暂不能用于工业化生产的原因进行了分析。 Melt mixing treatment as a simple process, low cost, less impact on the environment of the production process, to optimize Al-Si alloy solidification organization provides a new way of thinking. The melt mixing process is briefly introduced. The current research status of refining solidified microstructure of Al-Si alloy and optimizing the distribution of primary phase and morphology by melt mixing process is reviewed. And its mechanism of action is summarized Finally, the reasons why it can not be used in industrial production are analyzed.