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EK—1500悬挂式自动焊机头,最适合于焊接厚壁高压容器的外焊缝,在我厂实际使用中发现,此种机头是使焊丝在送丝轮(主动)与压紧轮(从动)的夹持中送出,经过下面的两对交错分布的校直轮的校正,然后输入导电咀把焊丝送进焊缝的坡口内。由于校直轮的校直方向,同送丝轮与压紧轮的夹持方向,以及导电咀的夹持方向都处在同一个平面,这样的校直作用能保证焊丝左右不偏。但刚性稍大的低合金钢焊丝,在焊接中容易产生前后带弯的现象,而这种现象,对于深坡口焊接是十分不利的。因为这样的弯正好在坡口的横断面上,它促使所熔敷的焊波,一边成形好,另一边则成形不良,为了确保焊缝成形,往往把导电咀与产
EK-1500 hanging automatic welding head, the most suitable for welding thick-walled high pressure vessel outer weld, found in our factory in actual use, such a machine head is the wire in the wire wheel (active) and compacting wheel Follower), pass through the following two pairs of straightening wheel alignment correction, and then enter the conductive nozzle to the welding wire into the groove. As straightening wheel straightening direction, with the roller and pinch wheel clamping direction, and the conductive nozzle clamping direction are in the same plane, so straightening can ensure that the wire is not biased. However, the slightly higher rigidity of the low alloy steel wire, tend to produce in the welding before and after the bend with the phenomenon, and this phenomenon, for deep bevel welding is very unfavorable. Because such a bend just in the bevel cross-section, which prompted the welding of the welding wave, while forming good, the other side is poor forming, in order to ensure the formation of the weld, often the conductive nozzle and the production