用灭弧焊进行打底层焊接时灭弧次数对焊缝质量的影响

The Influence of Arc Extinction frequency to Welding Seam Quality by use Extinction of Arc Welding as Basement Welding

阐述电焊工在实际操作考试中,用灭弧焊手法打底层焊接时灭弧次数与焊缝质量的关系。

It describes the relation of arc extinction frequency and welding seam quality with use arc extinction welding as basement welding in the course of electric welder examination in actural operation.