Numerical Simulation of the Thermo-Mechanical Process for Beam Blank Continuous Casting |
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| Authors: | W Chen YZ Zhang CJ Zhang LG Zhu BX Wang WG Lu JH Ma |
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| Affiliation: | 1. Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China;2. College of Metallurgy and Energy Engineering, Hebei Polytechnic University, Tangshan 063009, China;3. Tangshan Heavy Plate Co. Ltd., Tangshan 063610, China;4. Hebei Jinxi Steel Stock Co. Ltd, Tangshan 064302, China;5. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China;1. School of Physics and Technology, Wuhan University, Wuhan 430072, Hubei, China;2. Dongfeng Commercial Vehicle Technology Center, Wuhan 430056, Hubei, China;3. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;4. Department of Advanced Production Engineering, Engineering and Technology Institute Groningen, University of Groningen, Groningen 9747, The Netherlands;1. School of Materials Science and Engineering, Dalian University of Technology, Linggong Road 2#, Dalian, CN 116024, China;2. Chief Engineer Office, Jiangsu Shagang Group, Zhangjiagang, CN 215625, China;1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi''an 710072, China;2. Northwest Institute for Nonferrous Metal Research, Xi''an 710016, China;1. Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8011, Japan;2. Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8011, Japan;3. CREST, Japan Science and Technology Agency, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan |
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| Abstract: | The aim of this study was to simulate the solidification process of beam blank continuous casting,and then find the reasons for the typical defects of the beam blank. A two-dimensional transient coupled finite element model has been developed to compute the temperature and stress profile in beam blank continuous casting. The enthalpy method was used in the heat conduction equation.The thermo-mechanical property in the mushy zone was taken into consideration in this calculation.It is shown that at the mold exit the thickness of the shell had its maximum value at the flange tip and its minimum value at the fillet. The temperature had a great fluctuation on the surface of the beam blank in the secondary cooling zone. At the unbending point, the surface temperature of the web was in the brittleness temperature range under the present condition. To ensure the quality, it is necessary to weaken the intensity of secondary cooling. At the mold exit the equivalent stress and strain have higher values at the flange tip and at the web. From the spray 1 to the unbending point, the maximum values of stress and strain gradually moved to the internal section of the flange tip and the web. However, whenever, there were bigger stress and strain values near the flange tip and the web than in the other parts, it must be very easy to generate cracks at those positions. Now, online verification of this simulation has been developed, which has proved to be very useful and efficient to instruct the practical production of beam blank continuous casting. |
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| Keywords: | beam blank continuous basting thermo-mechanical process simulation BEAM BLANK CONTINUOUS CASTING PROCESS SIMULATION efficient practical production online verification simulation easy generate cracks However gradually internal section spray equivalent stress strain values |
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