Thin-wall cylindrical butt welding combined welding ring

Abstract

The invention discloses a thin-walled cylindrical butt-welding combined welding ring, which solves the existing technical problem that the matching welding ring cannot be removed after the butt-welding of two thin-walled cylinders. It includes four half-welding rings, which are assembled into a complete circle. The butt joints of the two half-welding rings on the left are set at the upper and lower ends, and the butt joints of the two half-welding rings on the right are set at the front and rear ends. The four half-welding rings can be assembled into a whole ring, the left half-welding ring and the right half-welding ring are matched with bosses and grooves, and an inclined surface is set at the boss near the inner circle, that is, the cross-section is The right-angled trapezoidal boss (19) is provided with an inclined surface near the groove of the inner circle, that is, the cross-section is a right-angled trapezoidal groove (20). , the half-welding ring will slide along the inclined surface provided between the boss and the groove, which facilitates the disassembly and assembly of the half-welding ring in the operation hole seat. The invention can obtain high-quality girth welding seam, and can disassemble the matching welding ring after welding.

Description

technical field [0001] The invention relates to a supporting tool for butt welding of two thin-walled cylinders, in particular to a welding ring for butt-welding of two thin-walled cylinders. Background technique [0002] For the welding of the butt girth weld of two thin-walled cylinders, when a special welder for the girth is used for welding, a matching welding ring must be installed under the weld to facilitate the formation of the weld and avoid the manual work caused by the special girth welder. It will produce a large penetration depth, which will lead to defects such as burn-through or over-melting during the welding process. However, when using the conventional method of welding the welding ring of the same material, the welding ring will fuse with the product shell after welding, and it is basically impossible to remove the welding ring. In addition, to ensure the quality of the weld, it is necessary to ensure a certain welding speed. Affected by the actual size o...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a thin-walled cylindrical butt welding combined welding ring, which solves the existing technical problems that the welding ring cannot be removed after the butt welding of two thin-walled cylinders and the X-ray detection results of the ring welding seam are difficult to judge.

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