| 铝熔体吹气发泡过程的水模拟研究 |
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| 引用本文： | 王德庆,孙承鑫. 铝熔体吹气发泡过程的水模拟研究[J]. 大连铁道学院学报, 2011, 0(2): 50-54,78 |
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| 作者姓名： | 王德庆 孙承鑫 |
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| 作者单位： | 大连交通大学材料科学与工程学院; |
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| 基金项目： | 辽宁省教育厅科学研究计划资助项目(20060094) |
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| 摘 要： | 通过水模拟实验描述了气泡在铝熔体中的形成过程,结合铝熔体发泡实验,研究了不同工艺参数对浸没孔中气泡形成尺寸的影响.研究结果表明,气泡在膨胀过程中为椭球体.当出气管的最大往复平动线速度由0变为366 mm/s时,水溶液表面气泡尺寸从3.4减小至2.6 mm,泡沫铝的胞直径由10.4减至3.0 mm.水模拟实验结果表明,随着气流量的增加（0.025~0.075 L/min）以及聚乙烯醇水溶液粘度的增大（2.27~16 mPa.s）,气泡的直径由1.5增加到2.7 mm;随着出气口距液面距离从150增至330mm,气泡直径从2.3增至2.6 mm,而实际泡沫铝胞直径为2.7 mm,考虑静压力并修正后,实验值与预测值的相对误差由15.45%减小至3.22%.
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| 关 键 词： | 泡沫铝 水模拟 气泡形成 |
Water Simulation of Aluminum Melt Foaming Process |
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| WANG De-qing,SUN Cheng-xin. Water Simulation of Aluminum Melt Foaming Process[J]. Journal of Dalian Railway Institute, 2011, 0(2): 50-54,78 |
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| Authors: | WANG De-qing SUN Cheng-xin |
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| Affiliation: | WANG De-qing,SUN Cheng-xin(School of Materials Science and Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | Through water simulation experiment,bubble forming process in the aluminum is described.Combining with aluminum foaming experiment,the influence of bubble size on different processing parameter is studied.The experiment results indicate that the bubble is ellipse spheroid in expansion phase.When the linear velocity of air tube is increase from 0 to 366 mm/s,the bubble diameter of water simulation is reduced from 3.4 to 2.6 mm,and the bubble diameter of aluminum is reduced from 10.4 to 3.0 mm.The water exper... |
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| Keywords: | aluminum foam water simulation bubble formation |
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