摘要
实现焊接过程的自动化、智能化是水下焊接技术的发展趋势,而首要的问题就是焊接过程的传感检测和控制技术。水下湿法焊接环境复杂,水介质与空气介质物理特征的差异决定了焊接过程完全不同的特点。介绍了基于药芯焊丝的水下湿法焊接过程检测与控制技术发展现状。根据传感检测信号的类型,主要检测方式可以分为视觉信号、电信号、热信号和声信号等,均具有不同的优势和特点;根据控制对象的不同,对焊接过程的控制可以分为熔滴过渡控制、熔深控制技术及焊缝跟踪技术等。实时检测与控制技术的研究和发展,是水下湿法焊接技术的研究重点也是难点,对提高湿法焊接技术的焊缝质量和在行业内推广应用具有重要意义。
Automatic and intelligent welding is the development trend of the underwater welding technology,whose basis is the sensing and control technology in welding processes.The difference of physical characteristics between water and air determines that the characteristics of underwater wet welding are different from the common welding methods on land.Development of sensing and control in underwater wet welding processes was introduced.According to the types of measured signals,it was classified into visual signals,electrical signals,thermal signals and acoustic signals and so on,and they have different advantages and defects.According to the control objectives,it was classified into metal transfer control,weld penetration control and welding seam tracking control and so on.For the underwater wet welding technology,it is of significance and also difficulty to sense and control the welding processes in real time,and it is greatly significant to improve the weld quality and the popularization of underwater wet welding in industrial application.
出处
《焊接》
北大核心
2011年第4期15-19,69,共5页
Welding & Joining
基金
国家863计划重点资助项目(2008AA092901)
山东省科学院科技发展基金项目"海洋水下湿法焊接过程监测与控制系统"
关键词
药芯焊丝
湿法
水下焊接
检测
控制
Flux-cored wire
wet welding
underwater welding
sensing
control
