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以Mg-5Sn合金为模拟对象,采用Fluent软件对其进行冷却速度的模拟,根据该合金的基本物理参数,结合传热理论和凝固理论,构建单辊甩带过程中的数值方程并求解,得到了制备84μm厚镁薄带的自由侧在凝固结束时冷却速度为2.26×106 K/s。该模拟模型适合于Mg-5Sn合金的快速凝固模拟,同时也为急冷辊结构的设计与优化提供参考。
Taking the Mg-5Sn alloy as a simulation object and using Fluent software to simulate the cooling rate, according to the basic physical parameters of the alloy, combined with the heat transfer theory and the solidification theory, the numerical equation in the process of single-roll rejection is established and solved The free side to prepare a 84 μm thick magnesium ribbon had a cooling rate of 2.26 × 10 6 K / s at the end of solidification. The simulation model is suitable for rapid solidification simulation of Mg-5Sn alloy, and also provides a reference for the design and optimization of quench roll structure.