Filling Characteristics of Magnesium Alloy Molten Metal in Squeeze Casting

Abstract:

Based on fluid mechanics, the filling process of magnesium alloy step-plate casting molten metal was analyzed, and the filling characteristics were studied by numerical simulating. The results show the filling velocity and the wall thickness of casting have a great effect on the filling characteristics of magnesium alloy. When the filling velocity is less than 0.3 m/s, the liquid frontier of molten metal and the fluid level of thick upper surface fluctuate greatly, and the defects of air entrainment and oxide impurities will appear. When the filling velocity is more than 0.58 m/s, the molten metal fills in turbulent way, and the defects of sputter and air entrainment will appear. The correlation between the wall thickness of casting and the critical filling velocity presented in this paper can be used for the optimization of filling velocity.

• Periodical: Advanced Materials Research (Volume 502)
• Pages: 335-341
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.502.335
• Online since: April 2012
• Authors: Yun Chen, Ding Fang Chen, Juan Du, Ji Xiang Luo
• Keywords: Critical Filling Velocity, Magnesium Alloy, Squeeze Casting, Step-Plate Casting

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