采用数值模拟方法研究了带钢热轧区轧件传热和温度场分布规律.结合现场生产中测温数据,建立了轧制变形区内轧件与轧辊接触传热界面换热系数(HTC)统计模型.分析了辊缝变形区中轧件断面上温度演变和分布特点.研究结果表明,热轧带钢热轧区传热数值模拟计算结果与实际吻合良好;变形区内轧件与轧辊接触传热界面换热系数不仅与平均单位压力相关,而且与轧制速度相关;轧件在轧制变形区存在很大的温度梯度.
参考文献
| [1] | Sellars C M .Computer Modeling of Hot Working Processes[J].Materials Science and Technology,1985,14:325-332. |
| [2] | Devadas C;Samarasekera I V;Hawbolt E B .The Thermal and Metallurgical State of Steel Strip During Hot Rolling:Part Ⅰ.Characterization of Heat Transfer[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1991,22A:307-319. |
| [3] | Devadas C;Samarasekera I V .Heat Transfer During Hot Rolling of Steel Strip[J].Ironmaking and Steelmaking,1986,13(06):311-321. |
| [4] | Chen W C .Thermomechanical Phenomena During Rough Rolling of Steel Slab[D].British Columbia:The University of British Columbia,1991. |
| [5] | 唐广波,刘正东,董瀚,王中丙,陈顺安,孙文填,张若生,谢立群,黄志勇,康永林.CSP热轧过程温度场模拟[J].钢铁,2003(08):38-42. |
| [6] | Tang G B;Liu Z D;Wang W.Numerical Simulation of Thermal Evolution During Hot Deformation for 2050 Hot Rolling Mill at Baosteel[A].上海,2004:1011-1014. |
| [7] | Hyuck-Cheol KWON;Youngseog LEE;Soo-Young KIM .Numerical Prediction of Austenite Grain Size in Round-Oval-Round Bar Rolling[J].ISIJ International,2003(5):676-683. |
| [8] | C. J. Huang;H. Zhang;Y. J. Nan;D. Z. Li;Y. Y. Li .A discussion of the formation of ultra-fine grains in low-carbon steels based on FE analysis[J].Computational Materials Science,2002(3):371-377. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%