基于ANSYS的高频直缝焊管主要控制参数模拟

Welding control parameters simulation of high-frequency electric resistance welded pipe based on ANSYS

基于高频直缝焊管的焊接温度是影响高频直缝焊管焊缝质量的首要因素,为提高高频直缝焊管的质量,重点研究了在高频感应加热中,高频焊接的主要控制参数焊接速度、焊接电流和焊管厚度对高频直缝焊管焊缝温度场的影响.依据高频焊接过程中的热源方程,利用ANSYS有限元热分析模块,建立适当的线热源模型,编写APDL程序.通过对3个主要控制参数的调节,得到在不同参数条件下的高频焊管焊缝温度场的分布云图,发现沿着高频焊管运动方向焊缝处温度是均匀递减的.在其中一组参数一定的状态下,对金洲集团Φ219 mm高频焊接机组的焊缝温度场进行测温,结果发现模拟温度场与实际温度场基本一致.

Welding temperature is the key factor for the quality of straight-line welded seam of high-frequency electric resistance welded pipe.To improve weld quality of high-frequency electric resistance weld（HFW） pipe,the effects of the main control parameters of welding speed,welding current and pipe thickness on weld quality were discussed for the high-frequency induction heating process.According to the heat equation of high-frequency induction heating process,the proper model of line heat source was established to obtain APDL program based on the thermal analysis module of ANSYS finite element.By adjusting three main control parameters,the welding temperature contour plot was achieved for various parameters.The temperature at welded seam is decreased uniformly at HFW motion direction.With a set of parameters for Ф219 mm high-frequency welding machine of Jinzhou Company,the temperature of temperature field on welding seam was mearured.The results show that the simulation temperature field is consistent with actual temperature field.