Q345钢板焊接性能分析摘 要：本文进行了Q345钢板焊接性能分析。首先根据板材制定了埋弧焊对接试验，然后用卧式显微镜对焊接接头进行宏观和微观分析，并用维氏硬度测试仪检测焊接接头的维氏硬度，同时通过磁粉检测对焊接试样进行了无损检测。最终通过对试验数据进行分析，得出此种材料的焊接性能，并与理论进行分析比较，总结了影响Q345焊接性的因素。关键词：Q345；埋弧焊；卧式显微镜；维氏硬度；磁粉检测The Welding Performance Analysis of Q345 Steel PlateAbstract: This article has conducted the welding performance analysis of Q345 steel plate. First of all, on the basis of the plate, we drew up a submerged arc welding butt joint test, then used horizontal microscope to analyze the macrostructu
