A detailed explanation of the key points of arc welding with horizontal rotating tube electrode

Welding characteristics ① Compared with the fixed pipe, it is easy to operate and ensure the weld quality; ② It can be continuously welded with high efficiency; ③ Additional turning device is required; Welding position ① Vertical welding position: it can ensure good root fusion and penetration, and is suitable for the situation with small gap; ② Inclined vertical welding position: it has the advantages of both vertical welding and flat welding, and can be welded with large current; ③ The tack weld must have sufficient strength, and the rolling bracket is shown in the figure below; Key points of welding operation ① The strip conveying is the same as the horizontal fixed pipe welding, but the welding rod does not move the strip forward, but the pipe moves backward; ② The multi-layer welding strip shall be carried out in the flat welding position, and the electrode shall be carried in the range of 15 ° ~ 20 ° of the vertical center, and the crescent shaped strip shall be used, and the electrode shall form an angle of 30 ° with the vertical center. The joints of each layer of weld bead shall be well welded and staggered with each other, especially the start and end of the root weld; ③ The transverse swing of the strip shall be slow on both sides and fast in the middle to ensure the full fusion of the groove surfaces on both sides; ④ The strip conveying speed should not be too fast to ensure good fusion between layers of weld beads.铜焊丝,Copper Welding Rods,铝焊丝,aluminium welding wire,镍焊条,Nickel electrode,药皮焊条,Flux Coated Brazing Welding Rods