With SMAW method, the surfaces of A3 and 45 steel were welded by using the series of CHR electrode, and the microstructure and performance of surfacing welding layer metal were analyzed.

• 摘要借助手工电弧焊方法，使用CHR系列堆焊焊条对A3、45钢进行堆焊加工，分析了其堆焊层金属的显微组织及性能。