随着锅炉技术的发展,先进的膜式水冷壁结构得刊了广泛的应用。但是,这种结构焊接工作量很大,产品质量要求也高,工件吨位重。如果采用手工电弧焊进行拼焊,为防止变形,还必须在被焊的鳍片管内通入流动的冷却水,并且,需由许多名焊工同时焊接完成,生产效率很低,周期长,劳动条件差,满足不了生产要求。 With the development of boiler technology, advanced membrane water wall structure has been published a wide range of applications. However, this structure welding workload, product quality requirements are high, heavy tonnage of the workpiece. If using manual arc welding for welding, in order to prevent deformation, but also must be welded finned tube into the flow of cooling water, and, by many welders at the same time welding, production efficiency is very low, long cycle, working conditions Poor, can not meet the production requirements.