Surfaced joints was conducted by shielded metal arc welding process on the 45 steel substrate using electrodes CHR237 and CHR207 at the same welding process parameters.

用手工电弧堆焊技术，在基体材料45钢表面上，分别选用CHR237和CHR207两种堆焊焊条在相同的工艺参数下进行堆焊。