Coupled analysis of temperature and flow during twin-roll casting of magnesium alloy strip |
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Authors: | Hu Zhao Peijie Li Liangju He |
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Affiliation: | a National Center of Novel Materials for International Research, Tsinghua University, Beijing 100084, China b Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China |
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Abstract: | The distribution of temperature and flow fields in cast-rolling zone was obtained through the direct coupled solution of finite element method. Two vortexes appeared in the cast-rolling zone during twin-roll casting. The flow velocity along thickness of the magnesium alloy strip was heterogeneous, which resulted in the microstructure with the flow trace inclined to the cast-rolling direction. The temperature difference between the strip surface and at the center was about 150 °C at the inlet and it declined to about 25 °C at the exit. The increase of the casting temperature caused the raise of the strip temperature at the exit. The calculated temperature was consistent with the measured temperature. |
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Keywords: | Twin-roll casting Magnesium alloy Temperature Flow Coupled analysis |
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