电磁组合场下5052铝合金铸轧坯组织与板材性能分析

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1、万方数据applicationofcombinedfield，whichconsistsofstaticmagneticfieldanddirectcurrent，hasnoobviousbenefittothemicrostructureof5052aluminumalloyroll-castingstrip；(3)Afteranalyzingtheinfluenceofdifferentelectromagneticconditionsoncentre—linesegregationof5052aluminumalloyroll-c

2、astingstrip，beRerresultsarefund．Butthemostidealconditionisthewholewaveoscillatingmagneticfieldamongthestaticmagneticfield，thewholewaveoscillatingmagneticfield，thehalfwaveoscillatingmagneticfieldandthestaticmagnetic-dcfield；(4)Hightemperatureannealingisabletoreducethecent

3、er·linesegregationof5052aluminumalloyroll—castingstripeffectively；(5)Comparedwiththefinalstripinthecommonroll—castingcondition，thefinalstripintheelectromagneticroll—castingconditionhasbettermechanicalproperties。Itsultimatetensilestrengthincreasesto240MPafrom200MPa,andits

4、elongationalsogetimprovedto27％from25．9％：(6)Undertheexperimentalcondition．thebestelectromagnetictechnologyisthewholewaveoscillatingmagneticfield，谢ththemagneticfieldintensityof0．3T’thecurrentintensityof200A，andtheroll—castingspeedof1．4m／min．Keywords：5052aluminumalloy；elect

5、romagneticroll—casting；microstructureandproperties；dendriterefining；centre-linesegregationVI万方数据目录独创性声明⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．I摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IIIAbstract⋯⋯⋯．⋯⋯⋯．⋯．⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．v目录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．vii第1章绪论⋯⋯⋯：⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯⋯11．15052铝合金的基本性质⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．2电磁场在材料加工的应用介绍⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一21．2．1材料电磁过程的提出与发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．21．2．2材料电磁过程的应用⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．3铸轧技术介绍⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．41．3．1铸轧技术的提出与发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．41．3．2铸轧技术成型原理与特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一61．4电磁铸轧技术介绍⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．81．4．1电磁铸轧技术的研究状况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．81。4．2电磁铸轧的提出⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一91．4．3电磁铸轧的电磁场细化原理⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一91．4．4电磁场铸轧对铝带坯的冶金效果⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯121．4．5电磁铸轧技术存在的问题⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯131．5．1本论文研究的主要目的⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯141．5．2本论文研究的意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯151．

8、5．3本论文做的研究工作⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯15第2章电磁铸轧实验设备及实验过程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯172．1电磁铸轧实验设备⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l72．1