铝硅合金中Si_初细化的现状与初探

Present Situation and Study of Refining Primary Silicon in Aluminum-Silicon Alloy

在分析过共晶铝硅合金Ｓｉ初细化现状的基础上，通过实验研制出ＰＪ－３、Ｐ－Ｓ－Ｗ、Ｐ－Ｒ细化剂，并配合恰当的处理工艺．使Ｓｉ初的分散度提高了１～２倍．

Based on the analyses of the present situation of refining primary silicon in hypercutectic Al-Si alloy,refinement agents,such as PJ-3,P-W,P-R,were developed by means of experiments in this paper.The combination of refiner and appropriate process technology improved dispersing degree of primary silicon whih was one or two times over that of non-refined primary silicon.