Welding process deep into ring seam

Abstract

The invention relates to the field of welding, and specifically discloses a welding process deep into a ring seam. The ring seam welding method is characterized in that the roughening process is conducted on the insertion connection contact portion of a sealing cover and a barrel body, the outer ring of the spigot portion on the insertion connection contact ring face of the sealing cover and the barrel body is a circle of slope ring face forming a 32.5-degree angle together with a vertical radial face, the root portion of the axial cylindrical face where the 32.5-degree radial slope ring face and an axial cylindrical face are connected is a ring of concave ring being 1.5 mm wide and 0.5 mm deep, a bottom ring edge being 0.3 mm thick and 0.5 mm wide is arranged on the barrel body and the bottommost portion of the lower edge of the inserted sealing cover, the lower edge, close to the bottom ring edge, of the sealing cover is a circle of slope ring face forming a 32.5-degree angle together with the vertical radial face, and then welding is conducted on the trapezoid portion. The welding process has the beneficial effects that the barrel body and the sealing cover are welded together in a fusion manner, the transverse portion of the barrel body is fused and firmly welded, the thickness requirement for the welding portion is met, and the sealing requirement is met.

Description

technical field [0001] The invention relates to the field of welding, in particular to a welding process that penetrates into the interior of a circular seam. 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]...

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