在圆筒形工件上进行内环缝自动焊时,为防止液态金属从熔池中流出来,一般采用传送带式的焊剂垫。我们在使用中发现这种焊剂垫不容易与工件贴紧,针对这个问题进行了改进。在传送带上,增加了一个压紧辊轮,为了使辊轮转动灵活,在辊轮两端安置了滚动轴承。帆布带与石棉带绕过三个辊轮结成整体安装在槽钢上,如图所示。槽钢可在固定支架的滚筒上作前后滚动,在回转轴上 In the cylindrical workpiece on the inner seam automatic welding, in order to prevent the flow of liquid metal from the pool, the general use of conveyor-type flux pad. We found in the use of this flux pad is not easy with the workpiece in close contact with the problem has been improved. In the conveyor belt, an increase of a pressure roller, in order to make the rotation of the roller flexible roller placed at both ends of the roller bearings. Canvas belt and asbestos belt around the three rollers form a whole installed on the channel, as shown. Channels can be fixed on the roller drum roll back and forth on the axis of rotation