Abstract
The effects of rotation speed and filling time on the filling and solidification process of the casting during centrifugal casting of super large cylinder liners are investigated by numerical simulation in this paper to enhance casting quality. The results show that higher or slower rotation speeds, as compared to the ideal rotation speed, can have a negative impact on casting performance. At 600 r min−1, part of the metal fluid is deposited at the bottom of the casting instead of rotating with the mold. The rain phenomenon happens, the inner surface is rough, and defects are easy to appear. At 800 r min−1 and 900 r min−1, the liquid metal flow is chaotic or even splashing, and the outside wall of the casting is susceptible to crack under extreme pressure, increasing energy consumption and segregation. At 700 r min−1, the metal liquid flow is continuous and uniform, and the filling process is great. In addition, the filling rate of metal liquid determines the filling time. The width of the material flow reduces initially and then grows as the filling time increases. The filling time should be moderate to ensure the casting filling process uniform and steady.
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The authors gratefully acknowledge support from the Jiangsu Innovation and Entrepreneurship Team Foundation, the National Natural Science Foundation of China (51825401) and the Natural Science Foundation of Heilongjiang Province of China (LH2020E032).
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Wang, X., Chen, R., Wang, Q. et al. Influence of Rotation Speed and Filling Time on Centrifugal Casting Through Numerical Simulation. Inter Metalcast 17, 1326–1339 (2023). https://doi.org/10.1007/s40962-022-00841-6
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DOI: https://doi.org/10.1007/s40962-022-00841-6