Method for the production of a tower segment

By combining automated welding with manual labor, along with auxiliary welding blocks and tool finishing, the problem of poor flux recovery when welding large-diameter towers was solved, achieving high-quality welds and a highly efficient welding process.

CN122165145APending Publication Date: 2026-06-09JINGMEN TIANSHUN WIND POWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JINGMEN TIANSHUN WIND POWER EQUIP CO LTD
Filing Date
2026-03-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies for welding large-diameter towers suffer from poor automatic flux recovery, resulting in non-straight welds or inconsistent V-shaped weld openings, leading to unsatisfactory welding outcomes.

Method used

The welding process combines automated welding with manual follow-up. The welding flux is recovered by manually operating the recovery pipe, and the submerged arc welding machine is adjusted according to the welding situation. Auxiliary welding blocks and tools are used to repair the weld seam to ensure the welding effect.

Benefits of technology

The weld is smooth and flat with a smooth transition. The weld quality meets the requirements, the first-time welding success rate is greater than 98%, the defect positioning accuracy is ≤1mm, and the weld tensile strength is increased by 4.5%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a tower section preparation method and belongs to the technical field of wind power tower production. The welding device is a double-wire submerged arc welding machine; when the arc welding is filled, the operator sits on a safety seat, faces the arc welding machine, holds a recovery pipe, takes tools on a tool placing platform according to needs to process, and operates an electric control box according to needs; an auxiliary welding block is welded at the front and rear ends of the tower section and located at the welding seam, and a groove is arranged on the auxiliary welding block; the auxiliary welding block at the starting end is welded first, the welding effect is visually observed, and the position of the main wire and the auxiliary wire and the distance therebetween are controlled by a manual horizontal adjusting structure and / or a manual vertical adjusting structure; after welding a predetermined length, the recovery pipe is used to recover the welding flux; for the welding seam after recovering the welding flux, the welding effect is visually observed, and trimming is performed by a trimming tool according to needs; after a predetermined time interval, the welding slag on the welding seam is removed and knocked off by a knocking tool, and after the welding is completed, the auxiliary welding block is cut off by a cutting tool.
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