低碳钢管-管全位置自动焊接的工艺及性能研究  

The Technology and Properties of All-position Automatic Welding of Low Carbon Steel Pipe

作　　者：张文勇[1] 肖卓[1,2] 陈志宏 陈文元 

机构地区：[1]中原工学院,郑州450007 [2]郑州科慧科技股份有限公司,郑州450001

出　　处：《中原工学院学报》2015年第1期63-66,共4页Journal of Zhongyuan University of Technology

基　　金：河南省科技攻关项目(142102210523);郑州市重点科技攻关项目(201306023)

摘　　要：利用管-管全位置自动焊接设备研究了不同的焊接工艺对低碳钢管焊缝形貌和性能的影响。通过金相显微镜、扫描电镜分析了焊缝的组织形貌,利用显微硬度计测定了焊缝不同区域的硬度分布。结果表明,在焊接过程中,焊枪处于不同位置时,相应地调节焊接参数,才能保证良好的焊接成形质量。硬度测试表明,从基体到热影响区再到焊缝,硬度逐步升高。Effects of welding process on appearance and properties of the weld joint of low carbon pipe are studied by all position automatic equipment. The microstructure of welding joint was studied by metallographic microscope and scanning electron microscope （SEM）. The microhardness of the different regions was tested. The results show that the pipe weld quality is good by adjusting the corresponding welding parameters when the welding torch is in different position. The hardness gradually increases from the substrate, heat affected zone （HAZ）, to welding line.

关 键 词：低碳钢 管-管 全位置自动焊接 工艺 性能 

分 类 号：TG457.6[金属学及工艺—焊接]