| INFLUENCE OF SURFACE-ACTIVE ELEMENTS ON FLUID FLOW OF MIG WELDPOOL |
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| 作者姓名： | J.S.Sun J.Q.Gao Y.Feng Y.W.Luan MOE Key Lab.of Liquid Structure and Heredity of Materials Shandong University Ji’nan China Technology Center Ji’nan Iron and Steel Group Ji’nan China |
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| 作者单位： | J.S.Sun;J.Q.Gao;Y.Feng;Y.W.Luan MOE Key Lab.of Liquid Structure and Heredity of Materials，Shandong University，Ji’nan 250061，China Technology Center，Ji’nan Iron and Steel Group，Ji’nan 250101，China |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | A mathematical model describing the behavior of metal inert gas (MIG) welding isformulated in the paper. By means of numerical simulation, the influence of surface-active elements on fluid flow of MIG weldpool is studied. The calculation resultsshow that by adding surface-active elements, the fluid flow behavior is drasticallychanged and the flow fluid flows from lower to upper in vertical direction at the rearof weldpool (w>0). The physical phenomenon is explained from the viewpoint of fluidflow behavior of weldpool that the properties of weld metal is greatly improved andthe content of diffused hydrogen is reduced, thus providing a basis for developing newwelding materials.
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| 关 键 词： | MIG焊 熔池 焊接 流场 表面活性原理 |
Influence of Surface-Active Elements on Fluid Flow of MIG Weldpool |
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| J.S.Sun,J.Q.Gao,Y.Fcng,Y.W.Luan.INFLUENCE OF SURFACE-ACTIVE ELEMENTS ON FLUID FLOW OF MIG WELDPOOL[J].Acta Metallurgica Sinica(English Letters),2004,17(2):189-193. |
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| Authors: | JSSun JQGao YFcng YWLuan |
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| Affiliation: | 1. MOE Key Lab. of Liquid Structure and Heredity of Materials,Shandong University,Ji'nan 250061,China;Technology Center,Ji'nan Iron and Steel Group,Ji'nan 250101,China
2. Technology Center,Ji'nan Iron and Steel Group,Ji'nan 250101,China |
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| Abstract: | A mathematical model describing the behavior of metal inert gas (MIG) welding is
formulated in the paper. By means of numerical simulation, the influence of surface-
active elements on fluid flow of MIG weldpool is studied. The calculation results
show that by adding surface-active elements, the fluid flow behavior is drastically
changed and the flow fluid flows from lower to upper in vertical direction at the rear
of weldpool (w>0). The physical phenomenon is explained from the viewpoint of fluid
flow behavior of weldpool that the properties of weld metal is greatly improved and
the content of diffused hydrogen is reduced, thus providing a basis for developing new
welding materials. |
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| Keywords: | surface-active elements fluid flow numerical analysis |
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