会议专题

Numerical simulation of Thermal-Fluid Coupled Field in Casting Mouth during Rheocasting-rolling of Semi-solid Magnesium Alloy

In the initial stage of rheocasting-rolling of semi-solid AZ91D magnesium alloy, the semi-solid slurry was injected into the casting mouth. The whole process was investigated by the VOF model in this paper. The influents of the geometric shapes of casting mouth on temperature field and flow field in casting mouth was analyzed. The numerical simulation results showed that flow field was very chaotic in the casting mouth with rectangular section, air was involved in the slurry, quality of the strip was badly impacted. But flow field was very gentle in the casting mouth with arcuate cross-section. Coupled numerical simulation in steady stage of rheocasting-rolling of semi-solid AZ91D magnesium alloy was done under different inflow temperature, distribution of temperature field ,Solid fraction in casting mouth of arcuate cross section was obtained. This provided the basis for optimizing the processing parameters in rheocasting-rolling of semi-solid AZ91D magnesium alloy.

MA Qiang ZHANG Ying XIE Shuisheng XU Jinhua

Department of Mechanical and Electronical Nanchang University, Nanchang 330029, China State Key Laboratory for Fabrication & Processing of Non-ferrous Metals, General Research Institute

国际会议

The 6th International Conference on Physical and Numerical Simulation of Materials Processing(第六届材料与热加工物理模拟及数值模拟国际学术会议 ICPNS 2010)

桂林

英文

1-6

2010-11-16(万方平台首次上网日期,不代表论文的发表时间)