高频直缝焊管焊接和热处理研究进展

Welding and heat treatment of high frequency longitudinal welded pipe

焊接钢管在石油化工、电力工业、农业灌溉和城市管网建设等领域得到了广泛的应用。随着高频焊管越来越多地应用于条件恶劣的工作场合,保证焊缝质量也成为业内关注的重点。为了揭示该学科的发展现状以及发展趋势,结合国内外研究现状,从温度场、残余应力、组织和力学性能3个方面介绍了高频直缝焊接及热处理以及其对焊缝质量的影响。当前高频直缝焊接技术研究的局限性在于难以建立适应性更强的多参数综合数学模型。高频直缝焊接技术未来的发展方向是高精度、智能化。

Welded steel pipes have been widely used in the fields of the petroleum chemistry,the electric power industry,the agricultural irrigation and the network construction of urban pipe.Ensuring the weld quality was the focus of the industry attention,as the high frequency welded pipes were increasingly applied in the poor conditions of the workplace.The high-frequency straight seam welding and the heat treatment and its influence on the weld quality from three aspects are introduced:the temperature field,the residual stress,the microstructure and the mechanical properties,in order to reveal the development status and development trend of the subject.The limitation of the technology of the high frequency longitudinal welding research was that it was difficult to establish a more adaptive multi-parameter integrated mathematical model.The future development direction of the high frequency longitudinal welding technology was high precision and intelligent.