Repair welding auxiliary device and welding system

Abstract

The invention provides a repair welding auxiliary device and a welding system and relates to the technical field of repair welding. The repair welding auxiliary device comprises a sliding main body, and the sliding main body can be arranged inside a pipeline, can block an inner-side opening of a through hole and encloses and froms a welding area for containing molten metal with the hole wall of the through hole. According to the repair welding auxiliary device and the welding system, because the through-hole position of the pipeline is provided with the sliding main body, the through hole is blocked by utilizing the sliding main body, the welding area is enclosed and fromed between the sliding main body and the hole wall of the through hole, in the repair welding process, the molten metalis contained inside the welding area to make the molten metal only can stay at the through-hole position and cannot pass through the through hole into the pipeline, appearance of weld nodules is avoided, and the technical problem existing in the prior art that the molten metal inside a molten pool will collapse into the pipeline to cause formation of the weld nodules on the inner wall of the pipeline when welding is performed at the process hole position is alleviated.

Description

Technical field [0001] The invention relates to the technical field of repair welding, in particular to a repair welding auxiliary device and a welding system. Background technique [0002] Many engine parts integrate some pipeline structures such as oil, water, and gas lines. In actual production, some process holes are set on the pipe wall of the pipeline, and these holes need to be sealed by welding. However, when welding at the position of the process hole, the molten metal in the molten pool will collapse into the pipe, resulting in the formation of welds on the inner wall of the pipe, and the cross-sectional area of ​​the channel at the weld will become smaller, resulting in unqualified pipe diameters. Summary of the invention [0003] The purpose of the present invention is to provide a repair welding auxiliary device and a welding system to alleviate the existing technology in the prior art when welding at the position of the process hole, the molten metal in the molten p...

AI Technical Summary

Problems solved by technology

However, when welding at the position of the process hole, the molten metal in the molten pool will collapse into the pipe, resulting in the formation of weld beads on the inner wall of the pipe, and the channel cross-sectional area at the position of the weld beads will become smaller, resulting in unqualified pipe diameters.

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