Reduction of Impurity Elements by Applying Electromagnetic Stirring in Fractional Crystallization
Reduction of Impurity Elements by Applying Electromagnetic Stirring in Fractional Crystallization
复制标题
分级结晶中电磁搅拌减少杂质元素
DOI：
10.1007/978-3-030-65396-5_107
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
N. Omura
中科院分区：
文献类型：
--
作者：
Y. Murakami;N. Omura
铝冶炼导致极高的温室气体排放。铝合金的回收利用是减少铝产品碳足迹的关键问题。回收铝屑、硅、铜等杂质元素，会成为障碍。本文采用电磁搅拌分步结晶法对含硅量大于7%的铸造铝合金进行了除杂研究。在从液相冷却到固液共存温度期间实施EMS。然后得到半固态铝浆料。挤压铝浆后，α-铝相颗粒与液相分离，施加电磁搅拌后，α相颗粒增多。α相中Si含量小于2.0%。挤压后，硅含量从原始材料中减少。
Aluminum smelting results in extremely high greenhouse gas emissions. Recycling of aluminum alloy is a key issue for decreasing the carbon footprint of aluminum products. To recycle aluminum scrap, impurity elements such as silicon, copper, etc., will become an obstacle. In this study, removing impurity elements from casting aluminum alloy which includes silicon higher than 7% was attempted by using a fractional crystallization method with electromagnetic stirring (EMS). EMS was implemented during cooling from the liquid phase to the solid–liquid coexistence temperature. Then the semi-solid aluminum slurry was obtained. After that by squeezing aluminum slurry, α-aluminum phase particles and the liquid phase were separated, and the number of α-phase particles was increased by applying EMS. The Si contains in α-phase was less than 2.0%. After squeezing, Si contains could be reduced from the original material.
影响因子：
1.2
作者：
Y. Murakami;K. Miwa;M. Kito;T. Honda;N. Kanetake;Shuji Tada
通讯作者：
Y. Murakami;K. Miwa;M. Kito;T. Honda;N. Kanetake;Shuji Tada