During the oscillating twin-roll strip casting process, the quality of fnal products is directly infuenced by the fow feld distribution of molten metal in the pool. The variation in the fow feld is caused by oscillating roller benefts, for homogeneous distribution of strip impurity, and decreasing the grain size. Thus, the quality of the strip could be improved. A numerical model was developed using the multiphase fow technology, coupled with heat transfer, fuid fow, solidifcation, and oscillation. Furthermore, a transient algorithm was adopted for simulating the oscillating twinroll strip casting process of AlSi9Cu3 and 3104 aluminum alloy. This paper focuses on the fow distribution in the pool, in comparison with the traditional vertical twin-roll strip casting process, while the amplitude or frequency is changing with the defnite value of casting velocity, roller diameter, nozzle angle, and the strip thickness. Consequently, the conclusions were experimentally validated by oscillating twin-roll 3104 aluminum alloy strip casting. Vibrating casting technology can change the fow feld in the pool by vibration, which can improve the quality of the strip core.
Zhi-Qiang Xu
,
Zhe-Ru Meng
,
Shun-Hui Xue
,
De-Quan Zhang
,
Feng-Shan Du
. Effect of Oscillation Parameters to Flow Field in the Pool during the Oscillating Twin-Roll Strip Casting Process[J]. Chinese Journal of Mechanical Engineering, 2018
, 31(6)
: 99
-99
.
DOI: 10.1186/s10033-018-0299-1
During the oscillating twin-roll strip casting process, the quality of fnal products is directly infuenced by the fow feld distribution of molten metal in the pool. The variation in the fow feld is caused by oscillating roller benefts, for homogeneous distribution of strip impurity, and decreasing the grain size. Thus, the quality of the strip could be improved. A numerical model was developed using the multiphase fow technology, coupled with heat transfer, fuid fow, solidifcation, and oscillation. Furthermore, a transient algorithm was adopted for simulating the oscillating twinroll strip casting process of AlSi9Cu3 and 3104 aluminum alloy. This paper focuses on the fow distribution in the pool, in comparison with the traditional vertical twin-roll strip casting process, while the amplitude or frequency is changing with the defnite value of casting velocity, roller diameter, nozzle angle, and the strip thickness. Consequently, the conclusions were experimentally validated by oscillating twin-roll 3104 aluminum alloy strip casting. Vibrating casting technology can change the fow feld in the pool by vibration, which can improve the quality of the strip core.
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