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| Filling ability of semi-solid A356 aluminum alloy slurry in rheo-diecasting | |
| 作者姓名： | Yuelong Bai Weimin Mao Songfu Gao Guoxing Tang Jun Xu |
| 作者单位： | [1]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China [2]National Engineering Research Center for Non-ferrous Metals Composite, General Research Institute for Non-ferrous Metals, Beijing 100088,China |
| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，国家重点实验室基础研究项目 |
| 摘 要： | The effects of slurry temperature, injection pressure, and piston velocity on the rheo-filling ability of semisolid A356 alloys were studied by the reho-diecasting methods. The results show that the slurry temperature of the semi-solid A356 aluminum alloy has an important effect on the filling ability; the higher the slurry temperature, the better is the filling ability, and the appropriate slurry temperature for rheo-filling is in the range of 585-595℃. The injection pressure also has a great effect on the filling ability, and it is appropriate to the rheo-filling when the injection pressure is in the range of 15-25 MPa. The piston velocity also has a great effect on the filling ability, and it is appropriate to the rheo-filling when the piston velocity is in the range of 0.072-0.12 m/s. The filling ability of the slurry prepared by low superheat pouring with weak electromagnetic stirring is very good and the microstructural distribution in the rheo-formed die castings is homogeneous, which is advantageous to the high quality die casting. 2008 University of Science and Technology Beijing. All rights reserved. |
| 关 键 词： | 半固体 铝合金 填充物 压力 |
| 收稿时间： | 2007-02-28 |
Filling ability of semi-solid A356 aluminum alloy slurry in rheo-diecasting |
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| Yuelong Bai Weimin Mao Songfu Gao Guoxing Tang Jun Xu.Filling ability of semi-solid A356 aluminum alloy slurry in rheo-diecasting[J].Journal of University of Science and Technology Beijing,2008,15(1):48-52. | |
| Authors: | Yuelong Bai Weimin Mao Songfu Gao Guoxing Tang Jun Xu |
| Affiliation: | 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;National Engineering Research Center for Non-ferrous Metals Composite, General Research Institute for Non-ferrous Metals, Beijing 100088,China 2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 3. National Engineering Research Center for Non-ferrous Metals Composite, General Research Institute for Non-ferrous Metals, Beijing 100088,China |
| Abstract: | The effects of slurry temperature, injection pressure, and piston velocity on the rheo-filling ability of semisolid A356 al-loys were studied by the reho-diecasting methods. The results show that the slurry temperature of the semi-solid A356 aluminum al-loy has an important effect on the filling ability; the higher the slurry temperature, the better is the filling ability, and the appropriate slurry temperature for rheo-filling is in the range of 585-595~C. The injection pressure also has a great effect on the filling ability, and it is appropriate to the rheo-fiUing when the injection pressure is in the range of 15-25 MPa. The piston velocity also has a great effect on the filling ability, and it is appropriate to the rheo-filling when the piston velocity is in the range of 0.072-0.12 m/s. The Idling ability of the slurry prepared by low superheat pouring with weak electromagnetic stirring is very good and the microstructural distribution in the rheo-formed die castings is homogeneous, which is advantageous to the high quality die casting. |
| Keywords: | A356 aluminum alloy rheo-diecasting filling ability semi-solid |
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