The weld ability , weld material and weld process of the Q345E steel applied to the locomotive and rolling stock for Qingzang line are studied in this paper .
对适用于青藏线机车车辆的Q345E钢的焊接性、焊接材料和焊接工艺进行了研究，对Q345E钢及其焊接接头进行了热处理试验，为Q345E钢焊接工艺规范的制定提供了依据。
Q345E