大家知道,二氧化碳焊的焊缝具有碗状熔深,而氩弧焊的焊缝由于焊接时强大的等离子流力的作用而呈现特有的指状熔深。严重的指状熔深会造成夹渣、未焊透等缺陷,故须采取措施(例如在氩中掺入一定比例的二氧化碳)来缓解、消除。在评判氩弧焊(或富氩焊)的焊缝成形时,人们常常讨论其熔深的指状程度是严重还是轻微,但迄今未见对指状程度的定量表 We all know that the welding of carbon dioxide with a bowl-shaped weld penetration, and welding of the weld due to the strong plasma plasma welding force showing unique finger-shaped penetration. Severe fingering will cause slag inclusions, incomplete penetration and other defects, it must take measures (such as argon into a certain percentage of carbon dioxide) to ease and eliminate. In the evaluation of argon arc welding (or argon-rich welding) of the weld formation, it is often discussed whether the degree of penetration of the finger is serious or minor, but so far no finger on the scale