检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:高敏锐[1,2] 李丘林[1] 杨定国[1,2] 刘伟[2]
机构地区:[1]清华大学深圳研究生院,广东深圳518055 [2]清华大学,北京100084
出 处:《稀有金属材料与工程》2016年第5期1335-1339,共5页Rare Metal Materials and Engineering
基 金:国家自然科学基金(50904042)
摘 要:铝硅过共晶合金凝固过程中析出的初生硅颗粒被视为铝熔体中的夹杂物颗粒。研究了由交替旋转磁场和下行波磁场组成的交替复合磁场对铝熔体中夹杂物的去除效果。结果表明,在交替复合磁场作用下,夹杂物颗粒发生了明显的聚合并迁移至顶部被除去。对比发现,交替复合磁场的除杂效果要优于单向旋转磁场和下行波磁场组成的单向复合磁场。随着交替复合磁场中的交替旋转磁场的频率和电流的增加,磁场除杂效果显著上升。交替时间为10 s时磁场除杂效果最佳。Primary silicon particles precipitating from the solidification of Al-Si hypereutectic alloy are regarded as inclusions which need removing. The effect of alternating combined magnetic field(CMF) composed of downward travelling magnetic field(TMF) and alternating rotating magnetic field(RMF) on the inclusions removal from aluminum melt was investigated. Inclusion particles agglomerated into clusters and migrated to the top of the melt under alternating CMF. It is found alternating CMF has a better removing effect than oriented CMF composed of oriented RMF and downward TMF. The removing effect of alternating CMF increases when the current and frequency of alternating RMF consisting of alternating CMF increase. Alternating CMF has the best removing effect when the alternating time is 10s.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.188.211.44