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文章编号： 16726987（2018）02011207； DOI： 10.16351/j.16726987.2018.02.018
赵朋成， 李静， 张克
(青岛科技大学 机电工程学院，山东 青岛 266061)
摘要： 利用ANSYS软件建立了电磁感应加热的电磁热耦合数值模型，对大直径321不锈钢圆筒件的焊前感应预热瞬态温度分布进行了模拟分析。研究了感应线圈中不同电流大小、频率以及不同感应加热方式作用下工件的温度分布情况，通过调节电流参数和感应加热作用方式使得感应预热后工件温度达到（120±10） ℃的预热工艺要求。结果表明：采用间隔20 s加热10 s，且感应电流频率10 kHz、大小750 A的加热工艺为最佳感应预热工艺。
关键词： 321不锈钢； 焊前预热； 感应加热； 温度场
中图分类号： TG 161文献标志码： A
引用格式：赵朋成， 李静， 张克. 大直径321不锈钢厚壁圆筒件焊前感应预热温度场的数值模拟\[J\]. 青岛科技大学学报（自然科学版）， 2018， 39（2）： 112118.
ZHAO Pengcheng, LI Jing, ZHANG Ke. Modeling of temperature fields of a 321 stainless steel cylinder with large diameter and thick wall by induction weld preheating\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2018, 39(2)： 112118.
Modeling of Temperature Fields of a 321 Stainless Steel Cylinder with
Large Diameter and Thick wall by Induction Weld Preheating
ZHAO Pengcheng, LI Jing, ZHANG Ke
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China)
Abstract: An electromagneticheat coupling numerical model is established by using ANSYS to investigate the transient temperature fields of a large diameter 321 stainless steel cylinder by induction weld preheating. Temperature distribution of workpiece with different current size and frequency in induction coil and in different induction heating modes are studied carefully. By adjusting the current parameters and induction heating modes, the weld preheating demands that between (120±10) ℃ after induction heating are satisfied. The predicted results show that the best induction preheating parameters are by using 10 kHz and 750 A current with heating 10 s between an interval of 20 s stop.
Key words: 321 stainless steel; weld preheating; induction heating; temperature field
收稿日期： 20170113
基金项目： 山东省教育厅高校科研发展计划项目（J12LA16）.
作者简介： 赵朋成(1972—)，男，副教授.
