Finite Element Analysis on Temperature Field of Finishing Rolled
20CrMnTiH Steel Round Bar during Controlled Cooling

Special Steel ›› 2007, Vol. 28 ›› Issue (3): 1-3.

Finite Element Analysis on Temperature Field of Finishing Rolled 20CrMnTiH Steel Round Bar during Controlled Cooling

Chen Man^1,2, Hong Huiping¹, Wang Li¹, Kang Yonglin¹，Jin Yongchun³

1 School of Materials Science and Engineering, University of Science and Technology, Beijing 100083 ；
2 Equipment Corporation, Sinosteel, Beijing 100080 ；
3 Shougang Research Institute of Technology, Beijing 100041

Received:2006-12-08 Online:2007-05-01 Published:2023-01-30

20CrMnTiH圆钢精轧后控冷过程温度场有限元分析

程满^1,2，洪慧平¹，王莉¹，康永林¹，金永春³

1北京科技大学材料科学与工程学院，北京100083 ；
2中钢设备公司，北京100080 ；
3首钢技术研究院，北京100041

作者简介:程满(1963-),男，博士生，材料成形过程控制与模拟仿真。

Abstract

Abstract: The temperature distribution curves at core, 1/2 radius and surface of the Φ35 mm round bar of 20CrMnTiH steel have been got by finite element simulating and situ temperature measuring to finishing rolled round steel bar during controlled cooling. Analysis results indicated that the temperature at surface of finished rolled round bar quickly dropped during water cooling while the temperature at core of steel decreased slowly ； the maximum temperature difference between the surface and the core of round bar was about 115 ℃ during water cooling ； and after water cooling the temperature of surface and core of round steel tended towards equality during air cooling. To adopt quick water cooling and combined air cooling process is available to inhibit austenite grain growth and obtain fine and dispersed structure of finished rolled 20CrMnTiH round steel products.

Key words: 20CrMnTiH Steel, Round Bar, Controlled Cooling, Temperature Field, Finite Element Analysis

摘要： 通过对20CrMnTiH圆钢精轧后控制冷却过程温度场进行有限元模拟以及现场温度实测,得出了Φ35 mm规格圆钢芯部、1/2半径处和表层温度的分布曲线。分析说明,轧后水冷却过程圆钢表层温度急速下降,而芯部温度下降缓慢,水冷时圆钢芯部与表面的最大温差约为115℃;水冷后的空冷过程使得圆钢芯部和表层温度逐渐一致。20CrMnTiH圆钢精轧后采用快速水冷并配合空冷工艺,有利于抑制奥氏体晶粒长大并获得均匀细小的轧材组织。

关键词: 20CrMnTiH钢, 圆钢, 控制冷却, 温度场, 有限元分析

Chen Man, Hong Huiping, Wang Li, Kang Yonglin, Jin Yongchun. Finite Element Analysis on Temperature Field of Finishing Rolled 20CrMnTiH Steel Round Bar during Controlled Cooling[J]. Special Steel, 2007, 28(3): 1-3.

程满, 洪慧平, 王莉, 康永林, 金永春. 20CrMnTiH圆钢精轧后控冷过程温度场有限元分析[J]. 特殊钢, 2007, 28(3): 1-3.