工字钢退火过程的有限元仿真及工艺优化  

Finite Element Simulation and Optimization of Annealing Process of I-Beam

作　　者：杨智杰 宁晓骏[1] 侯庆 周霜林 张杰 YANG Zhijie;NING Xiaojun;HOU Qing;ZHOU Shuanglin;ZHANG Jie(School of Architecture and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650500,China;Zhonggui Geoenvironmental Survey and Design Co.,Ltd.,Chongqing 401120,China;Chongqing Yiyuan Construction Engineering Co.,Ltd.,Chongqing 400060,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]中规地环勘测设计有限公司,重庆401120 [3]重庆意远建设工程有限公司,重庆400060

出　　处：《上海金属》2024年第5期89-94,共6页Shanghai Metals

摘　　要：根据工字钢的几何形状和材料特性,采用ANSYS有限元软件建立了工字钢退火过程的热-结构耦合分析模型,并对3种退火工艺的温度场和应力场进行了模拟和分析。结果表明:相比去应力退火和再结晶退火,完全退火工艺的温度最高、热通量最小;去应力退火和再结晶退火可能导致材料内部应力积累,使工字钢的应力分布不均匀;完全退火后材料晶体结构发生了重排和再结晶,使工字钢的热应力和热应变显著减小,使用可靠性提高。Based on the geometric shape and material properties of I-beams,a coupled thermal-structural analysis model of the annealing process of I-beams was established by using ANSYS finite element software,and the temperature field and stress field of three annealing processes were simulated and analyzed.The results showed that(a)compared with stress-relief annealing and recrystallization annealing,the full annealing was the highest in the temperature,and the lowest in the heat flux;(b)stress-relief annealing and recrystallization annealing processes might lead to the accumulation of internal stresses in the material,resulting in the uneven distribution of stress in Ibeam;(c)the crystal structure of the material underwent rearrangement and recrystallization after full annealing,resulting in a significant reduction in the thermal stress and thermal strain of the I-beam,and an improvement of reliability in use.

关 键 词：工字钢 退火 热-结构耦合 有限元分析 热应力 

分 类 号：TG156[金属学及工艺—热处理]