| Mould filling ability and microstructure of aluminum alloy under electromagnetic die casting |
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| 作者姓名： | 丁宏升 郭景杰 贾均 毕维生 陈利军 |
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| 作者单位： | National Key Laboratory for Precision Hot Processing of Metals，Harbin Institute of Technology，Harbin 150001，P.R.China; |
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| 基金项目： | Project ( 98-0 3)supportedbytheEmersonDoctoralFundofAmerica，Project (G2 0 0 0 0 672 0 2 -2 )supportedbytheState
KeyFundamentalResearchProgram |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＣａｓｔａｌｕｍｉｎｕｍａｌｌｏｙｓａｒｅｗｉｄｅｌｙｕｓｅｄｉｎａｅｒｏｓｐａｃｅ ,ａｅｒｏｎａｕｔｉｃｓ,ａｕｔｏｍｏｂｉｌｅｓ ,ｍｅｃｈａｎｉｃａｌｍａｎｕｆａｃｔｕｒｉｎｇｉｎｄｕｓｔｒｉｅｓ ,ｅｔｃ .,ｄｕｅｔｏｔｈｅｉｒｄｅｓｉｒａｂｌｅｆｅａｔｕｒｅｓｓｕｃｈａｓｌｏｗｄｅｎｓｉｔｙ ,ｈｉｇｈｓｐｅｃｉｆｉｃｓｔｒｅｎｇｔｈ .Ｗｉｔｈｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｍｏｄｅｒｎｉｎｄｕｓｔｒｉｅｓａｎｄｎｅｗｃａｓｔｉｎｇｔｅｃｈｎｏｌｏｇｉｅｓ ,ｔｈｅｄ…
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Mould filling ability and microstructure of aluminum alloy under electromagnetic die casting |
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| DING Hong sheng,GUO Jing jie,JIA Jun,BI Wei sheng,CHEN Li jun.Mould filling ability and microstructure of aluminum alloy under electromagnetic die casting[J].Transactions of Nonferrous Metals Society of China,2001(4). |
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| Authors: | DING Hong sheng GUO Jing jie JIA Jun BI Wei sheng CHEN Li jun |
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| Abstract: | In order to solve the mould filling problem of large thin walled aluminum alloy castings effectively, a new casting technology called electromagnetic die casting has been developed. Emphasis has laid on studying the mould filling ability and microstructure under the mentioned method. The results show that the mould filling ability of A357 is increasing continually with the increasing of the input voltage, that is, the magnetic induction intensity. The pressure head of the molten metal increases from the lowest one at the input of the mould to the highest one at the end of the mould while in a conventional mould the pressure head depends invariably on the sprue height. Under electromagnetic die casting, the grains of A357 alloy are refined, and the pattern of eutectic silicon of alloy changes from rough plate to smooth strip. |
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| Keywords: | cast aluminum alloy magnetohydrodynamics electromagnetic die casting mould filling ability microstructure |
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