管对接水平固定焊仰焊位循环练习法探析

Research on the circular training method of overhead position welding in horizontally fixed pipe butt welding

管对接水平固定单面焊双面成形操作过程中,仰焊位的焊接是最难控制的区域,采用常规的焊接练习方法,技能提高慢,效率低下,材料浪费严重。采用仰焊位循环练习法,使焊缝不良缺陷基本消除,练习周期相对缩短,节省了练习材料,仰焊位焊缝及对接接头合格率显著提高,具有较好的训练效果。

In the process of horizontally fixed pipe butt one-sided welding while both sides taking shapes, overhead position welding is the most difficult point to control. With the conventional method of welding practice, the situation of slow skill improvement , low efficiency and serious waste of materials arise. But with the adoption of the circular training method of the overhead position welding , this method makes the weld defects elimi- nated, exercise period is relatively short, a lot of training materials is saved, qualification rate of the fractures at the overhead welding position and butt joint is significantly improved, thus a better training effect achieved.