单面焊双面成形技术

根据“锅炉压力器焊工考试规则”规定,对接缝手工电弧焊的考试试板必须采用单面焊双面成形工艺完成,这就要求焊工打底层封焊时具备一定的基本功,在此推荐打底层连弧焊技术,从试板几何形状,装配尺寸,引弧,运条,接头,熄弧等基本训练方面详细讲解其要点,以供广大读者参考。

Crafts of welding by one side in shape by both sides

As stipulated by"the testing regulation of container of pressure of boiler to welder",the prototype of arc welding to the joined slit must be completed through the crafts of groove by bevelling.It is required the welder must have essential skill when he welds the seal of the bottom.This article recommends the explanation of prototype of geometric shape,assembling size,arc igniton,the strip of transport,joint and extinguished arc and so on,which is a reference to readers.