Taking into account the size of the vent tube and the welder, the longitudinal seam of the barrel is the A-slot automatic welding and the double-sided welding; the B-slot of the tubular but welding is made by argon-arc welding, manual filling, and the submerged arc welding cover face, select the corresponding process parameters.

The physical welding on-site shows that the welding effect is good, the high welding efficiency, and the welding joint quality is stable.

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