Circular seam welding process

Abstract

The invention relates to the welding field and particularly discloses a circular seam welding process. The circular seam welding process is characterized by comprising the steps that, firstly, in the machining stabbing process of the insertion contact part of a sealing cap and a barrel, a circle of slope circular ring plane which forms an angle of 32.5 degrees with a vertical radial plane is arranged on the outer circle of a spigot part of an insertion contact ring plane of the sealing cap and the barrel; a circle of concave ring with the width being 1.5 mm and the depth being 0.5 mm is formed in the root of an axial cylindrical surface explained in detail by the 32.5-degree radial slope ring plane and the axial cylindrical plane; a circle of bottom ring edge with the thickness being 0.3 mm and the width being 0.5 mm is formed at the lowest bottom of the lower edge of the barrel and the inserted sealing cap; and the circle of slope ring plane which forms an angle of 32.5 degrees with the vertical radial plane is arranged in the position, close to the bottom ring edge of the sealing cap, of the bottom ring edge, and then welding is conducted on a trapezoid part. The circular seam welding process has the beneficial effects that transverse parts of the barrel are melted and welded firmly by being welded with the sealing cap; the thickness requirement for the welded parts is met, and the sealing requirement is also met.

Description

technical field [0001] The invention relates to the field of welding, in particular to a circular seam welding process. Background technique [0002] At present, the welding part of the aluminum alloy cylinder under pressure is required to meet a certain sealing strength requirement, but when the original aluminum alloy cylinder and the cover are welded, the contact ring surface of the cover and the cylinder is processed into a spigot, a spigot The root is processed into a slope, and then the root of the cover stopper is inserted into the cylinder mouth, and argon arc welding is performed directly. Since the cover of the welding part will absorb some heat, the flux and welding materials cannot penetrate into the inner part of the ring seam, and the ring surface of the weld seam It cannot be completely melted, the welding part is shallow, and the welding cannot meet the sealing strength requirements. Contents of the invention [0003] The technical problem to be solved by ...

AI Technical Summary

Problems solved by technology

[0002] At present, the welding part of the aluminum alloy cylinder under pressure is required to meet a certain sealing strength requirement, but when the original aluminum alloy cylinder and the cover are welded, the contact ring surface of the cover and the cylinder is processed into a spigot, a spigot The root is processed into a slope, and then the root of the cover stopper is inserted into the cylinder mouth, and argon arc welding is performed directly. Since the cover of the welding part will absorb some heat, the flux and welding materials cannot penetrate into the inner part of the ring seam, and the ring surface of the weld seam It cannot be completely melted, the welding part is shallow, and the welding cannot meet the sealing strength requirements