| Removal of inclusions from molten aluminum with actively coated ceramic filters |
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| 作者姓名： | 周鸣 倪红军 疏达 张为玉 李克 孙宝德 王俊 |
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| 作者单位： | School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering，School of Materials Science and Engineering Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai Jiaotong University，Shanghai 200030，China |
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| 基金项目： | Project(G19990 64 90 0 )supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina |
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| 摘 要： | 1 INTRODUCTIONMoltenaluminumissoactivethatitreactseasilywithO2 andH2 OtoproduceAl2 O3inclusionsandH2duringmeltingpractice .However ,someinclusions ,suchasAl2 O3,Al4 C3,MgAl2 O4 etc ,areproducedduringelectrolyticprocess .Aluminum productscon tainingtheseinclusionswill probablyexhibit poortoughnesspropertiesinservice1,2 ] .Theinclusionsof 30 μmindiametercannotre movedfrommoltenaluminumusing glassfibrouswebsorfoamceramicfilters .Fromkineticsofchemi calreaction ,itisshownthatliquidalu…
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Removal of inclusions from molten aluminum with actively coated ceramic filters |
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| ZHOU Ming,NI Hong Jun,SHU Da,ZHANG Wei Yu,LI Ke,SUN Bao De,WANG Jun.Removal of inclusions from molten aluminum with actively coated ceramic filters[J].Transactions of Nonferrous Metals Society of China,2003,13(3). |
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| Authors: | ZHOU Ming NI Hong Jun SHU Da ZHANG Wei Yu LI Ke SUN Bao De WANG Jun |
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| Abstract: | Molten aluminum (A001) was filtered by using ceramic foam filters coated with active enamel. Tensile test shows that the elongation of filtered sample is increased by 15.5%, but the tensile strength of the sample is almost the same as that of unfiltered one. The fracture cracks and dimples of filtered sample are fine and homogeneous according to SEM examination. In addition, metallographic observation shows that the filtered sample has very few inclusions of approximately 8 μm in diameter, but the unfiltered sample has some inclusions of approximately 60 μm in length and 20 μm in width. However, it is suggested that the active enamel coat can effectively capture the inclusions and dissolve them during filtering molten aluminum. |
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| Keywords: | active coating inclusion molten aluminum ceramic foam filter |
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