探索了一种新的焊接方法--双面电弧焊在焊接各种材料时的特点.该方法利用两个常规的电弧在工件两侧同时施焊.焊接电流从一个焊炬通过工件流入另一个焊炬.除了具有会聚电弧、提高焊接熔透能力外.该焊接工艺还能够促进焊接凝固时的"柱状晶向等轴晶的转变".改善焊缝组织.减少焊接气孔率.这些特点对于提高焊接接头的机械性能具有重要的意义.
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