Fe Removal in Cast Al Alloy

Liu Rongqian  Jia Xiaowei  Liu Jinming  Yang Lanqin  Yang Shuangjie

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Fe Removal in Cast Al Alloy
Issue 2, Pages: 107-108(2001)
Published：2001
DOI：
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[1]刘荣迁,贾晓伟,刘锦明,杨兰琴,杨双杰.铸造铝合金的除铁[J].特种铸造及有色合金,2001(02):107-108+0. DOI：

Liu Rongqian Jia Xiaowei Liu Jinming Yang Lanqin Yang Shuangjie. Fe Removal in Cast Al Alloy[J]. Special Casting & Nonferrous Alloys, 2001, (2): 107-108. DOI：

摘要

加入一定量的第三元素Si

常可令在液态铝合金中的铁

由不饱和状态转变为过饱和状态

以含铁化合物T2 初晶形态析出。利用固液两相的密度差

进行控制在 5 85℃的等温精炼。使含铁化合物发生重力分离

将铁去除。试验中获得的“超净化”现象

可令铸造铝合金中的铁的质量分数由 2 %下降至 0 .5 %

Abstract

Adding cerbain quantity of third element Si to molten aluminum makes Fe transfer from unsaturated to supersaturated states with Fe containing primary phase T 2 prepcipitation.Based on the density difference between solid liquid phase and isothermal refinement at 585 ℃

Fe was removed due to the Fe containing phase to gravity deposit. The phenomenon of "super purification" obtained during the experiment could make Fe in cast Al alloy decrease from 2% to 0.5%.