The whole welding of small U bend for fin heat exchanger..

The technical solution for the whole welding of small U bend of fin heat exchanger
In this paper, the method of flame brazing is adopted for the connection between the small U bend and the long U pipe of the finned heat exchanger. When the number of the small U bend is beyond 3 columns, the linear flame automatic welding machine can not be used. The small U bend 4 columns and above products only use manual welding; because of the particularity of flame welding, manual welding welding skills of human dependence is very strong, the welding quality and staff proficiency is closely related. The special automatic welding machine applied to solve small U bend 4 columns and above the finned heat exchanger technology and equipment. Desperately need great help