摘要
由电热还原法制取的一次铝硅合金含有铝55%,硅25%和一些杂质。其中的杂质主要是铁和一些金属氧化物。在实验室中研究了由一次铝硅合金制取铸造铝硅合金的工艺。研究结果得出,使用含冰晶石和氯化钠混合物的精炼剂以及金属锰为除铁剂并采取适当的工艺方法,可以有效地去除一次铝硅合金中的杂质,制取符合工业标准的铸造铝硅合金。文中对精炼剂量的大小以及过滤温度等工艺条件对铸造合金中某些金属杂质含量的影响进行了研究。
The coarse Al- Si alloy produced by carbon thermal reduction of aluminous ore includes 55 % aluminum, 25 % silicon and some impurities. The main impurities are iron and metallic oxides, The process of manufacturing casting Al - Si alloy with the coarse Al - Si alloy was studied in laboratory. It was found that casting Al - Si alloy conforming to industrial standard could be obtained after refining by using cryolite and sodium chloride as purificant and removing iron by using manganese as de - ironing medicine. The effect of purificant addition, filtering temperature and some other technics conditions on the content of some metallic impurities in the casting Al - Si alloy was studied in the paper.
出处
《轻金属》
CSCD
北大核心
2008年第1期55-60,共6页
Light Metals
关键词
一次铝硅合金
铸造铝硅合金
精炼
除铁
coarse Al - Si alloy
casting Al - Si alloy
refining
removing iron
