Materials Reports  2019, Vol. 33 Issue (Z2): 463-467 |
| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Low Gas Pressure on Atomization Process of Spray Forming |
| YU Lei, WANG Hui, SHAN Bing, YAO Weifeng, TANG Shuwen, ZHANG Jun, CHEN Yegao
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| School of Mechanical and Electrical Engineering, Suqian College, Suqian 223800 |
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Abstract The effects of the atomization gas pressure on the pressure, velocity and temperature fields were analyzed by Fluent, providing theoretical basis for the selection of pressure parameters and feasible research on experimental in spray forming process. The simulation results show that the pressure at nozzle exit approaches the minimum value of 1.16×105 Pa when the gas pressure is 3.0×105 Pa. At this condition, atomized particles of 200—500 μm and primary Si particles of 3—7 μm were got. When the gas pressure is in the range of 2.0×105—4.0×105 Pa, the total pressure and velocity of the “stagnation” decrease, and the total pressure and velocity of the intersection and the cooling velocity increase with the gas pressure increasing.
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Published: 25 November 2019
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| Fund:This work was financially supported by the Natural Science Research Program of Jiangsu Higher Education Institutions (19KJB430035) and the Innovation and Entrepreneurship Program of Jiangsu (201914160008Z). |
About author:: Lei Yu, her interesting is material forming and control engineering.
Yegao Chen, Ph. D., is the deputy secretary-general of Jiangsu foundry society and the secretary-general of investment casting commission. He is mainly engaged in continuous extrusion and continuous Spray Conform. He is presiding over one project of natural science research of Jiangsu higher education institutions of China, and participated in the completion of one project of the national science and technology support plan, two projects of the natural science foundation of China, and two projects entrusted by enterprises. More than 20 papers, including more than 10 papers indexed by SCI or EI, have been published. And more than 20 patents have been applied for and 9 invention patents have been authorized. |
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