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船舶建造中的薄板焊接以往采用手工焊接或用仿苏EA-1000型焊机进行埋弧自动焊接。然而,采用手工焊接,钢板变形严重;笨重的仿苏EA-1000型焊机又存在移动不方便、准备工作也过于麻烦的缺点,不受焊工的欢迎。特别是由于过去薄板埋弧自动焊都采用机下轨道,当钢板在焊接中受热变形时,轨道不能跟随产生相应变形,使焊丝伸出长度产生较大变化,造成电弧电压和电流的不稳定,影响焊接质量,也容易焊穿。同时,薄板焊接本身速度快,容易产生气孔,加上它采用的是直径为3～5毫米的粗丝,电流密度小,气孔就更容易产生。为了适应造船工业发展的需要,我们在原
Shipbuilding in the past, the use of manual welding plate welding or imitation Su EA-1000-type submerged arc welding machine automatic welding. However, the use of manual welding, steel deformation serious; heavy imitation Su-EA-1000-type welder there is inconvenient to move, preparation is too cumbersome shortcomings, not welder welcome. Especially in the past, the submerged arc automatic welding of the thin plates adopted the lower track of the machine. When the steel plate was heated and deformed in the welding, the track could not follow the corresponding deformation, which caused great changes in the wire drawing length, resulting in unstable arc voltage and current, Affect the quality of welding, but also easy to wear. At the same time, the sheet welding itself is fast, prone to stomatal, plus it uses a diameter of 3 ~ 5mm thick filaments, the current density is small, the stoma is easier to produce. In order to meet the needs of the shipbuilding industry, we are in the original