东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (8): 1118-1122.DOI: 10.12068/j.issn.1005-3026.2018.08.011

• 材料与冶金 • 上一篇    下一篇

双相钢差厚板退火过程的温度场

柯迪文1, 刘相华1,2, 支颖1   

  1. (1. 东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳110819; 2. 东北大学 研究院, 辽宁 沈阳110819)
  • 收稿日期:2017-04-26 修回日期:2017-04-26 出版日期:2018-08-15 发布日期:2018-09-12
  • 通讯作者: 柯迪文
  • 作者简介:柯迪文(1992-),男,湖北黄石人,东北大学博士研究生; 刘相华(1953-),男,黑龙江双鸭山人,东北大学教授,博士生导师.冯明杰(1971-), 男, 河南禹州人, 东北大学副教授; 王恩刚(1962-), 男, 辽宁沈阳人, 东北大学教授,博士生导师.
  • 基金资助:
    国家国际科技合作专项 (2015DFA50780); 国家自然科学基金资助项目(U1460107,51504062, 51374069).国家自然科学基金资助项目(51171041).

Temperature Field in Annealing Process of Dual-Phase Steel TRB

KE Di-wen1, LIU Xiang-hua1,2, ZHI Ying1   

  1. 1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China; 2. Research Academy, Northeastern University, Shenyang 110819, China.
  • Received:2017-04-26 Revised:2017-04-26 Online:2018-08-15 Published:2018-09-12
  • Contact: LIU Xiang-hua
  • About author:-
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摘要: 为了获得性能可控的冷轧双相钢差厚板,需要了解其退火过程中的温度变化规律.采用ABAQUS有限元软件模拟双相钢差厚板在退火过程中不同厚度处的温度分布,结果发现,当差厚板不同区域有相同的冷却速度时,冷却速度越大,厚区与薄区对流换热系数之比越接近差厚比,从2.12变为2.03,且对流换热系数与冷却速度为线性关系;当差厚板不同区域的冷却强度相同时,随着冷速的增加,差厚板薄、厚区温差增大,从124℃升至141℃.随着差厚板斜率的增加,温度影响区长度增加.

关键词: 差厚板, 退火, 温度场, 有限元, 双相钢

Abstract: To gain cold rolled dual phase steel TRB (tailor rolled blank) with controllable performance, the annealing temperature variation during annealing is necessary to know. The temperature distribution of dual-phase steel TRB at different thickness in the annealing process was simulated by the finite element software ABAQUS. The results showed that when the different areas in TRB is in same cooling rate, the bigger the cooling rate is, the less gap between the ratio of the convection heat transfer coefficient, which changes from 2.12 to 2.03, and the ratio of thickness is. The convection heat transfer coefficient is directly proportional to cooling rate. When cooling intensity is same in different areas in TRB, the temperature difference between thick and thin area increases from 124℃ to 141℃ with increased cooling rate. If the slope of TRB increases, the length of temperature affected zone increases.

Key words: tailor rolled blank, annealing, temperature-field, finite element, dual-phase steel

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