Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1630487 | Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material | 2008 | 5 Pages |
Abstract
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°C. 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yuelong Bai, Weimin Mao, Songfu Gao, Guoxing Tang, Jun Xu,