Numerical Simulation Of Molten Pool And Control Strategy Of Kiss Point In A Twin-Roll Strip Casting Process |
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作者单位: | State Key Laboratory of Rolling & Automation, Northeastern University, Shenyang 110004, China |
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基金项目: | supported by National Key Research Development Planning Project of China (2004CB619108). |
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摘 要: | Coupled turbulent flow, temperature fields of the twin-roll casting strip process were simulated by three-dimensional finite element method. Based on the heat balance calculation and using inverse methods between the simulations and real experiments, the relational models among casting speed, location, and coefficient of heat transfer between molten metal and rolls in different regions are given. In the simulation, the calculated surface temperatures are in good agreement with the measured values. An on-line model of kiss point is derived by simulations and the geometry of molten pool, corresponding control strategy is also proposed.
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关 键 词: | 铸造 温度 数字模拟 结合点 控制策略 |
收稿时间: | 5 November 2007 |
修稿时间: | 2008-01-24 |
NUMERICAL SIMULATION OF MOLTEN POOL AND CONTROL STRATEGY OF KISS POINT IN A TWIN-ROLL STRIP CASTING PROCESS |
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Authors: | GM Cao CG Li ZY Liu D Wu GD Wang XH Liu State Key Laboratory of Rolling & Automation Northeastern University Shenyang China |
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Affiliation: | aState Key Laboratory of Rolling & Automation, Northeastern University, Shenyang 110004, China |
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Abstract: | Coupled turbulent flow, temperature fields of the twin-roll casting strip process were simulated by three-dimensional finite element method. Based on the heat balance calculation and using inverse methods between the simulations and real experiments,the relational models among casting speed, location, and coefficient of heat transfer between molten metal and rolls in different regions are given. In the simulation, the calculated surface temperatures are in good agreement with the measured values. An on-line model of kiss point is derived by simulations and the geometry of molten pool,corresponding control strategy is also proposed. |
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Keywords: | Twin-roll strip casting Coupled temperature and flow field Numerical simulation Kiss point Control strategy |
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