Transition plate welding method and system for welding thick galvanized plate of rewinding unit
By using uncoated low-carbon steel transition plates and thick galvanized plates for intermediate transition welding in the rewinding unit, the problems of poor welding quality and high welding wheel wear were solved, achieving efficient and safe welding results.
CN121945947APending Publication Date: 2026-05-01SD STEEL RIZHAO CO LTD
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Patent Information
- Application Number
- CN202610186016.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-09
- Publication Date
- 2026-05-01
AI Technical Summary
Technical Problem
Existing technologies for welding thick galvanized sheets in rewinding units suffer from poor welding quality, high welding wheel wear, and a high risk of strip breakage.
Method used
Uncoated low-carbon steel transition plates are used as the transition plate body. The thickness, width and length are optimized by the median transition principle. Narrow lap roll resistance welding is performed with the preceding and following galvanized plates before and after welding to form a stable weld.
Benefits of technology
It improved the pass rate of welding thick galvanized sheets to over 98%, reduced welding wheel wear by 50%, reduced zinc powder pollution, and improved welding stability and safety.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of strip steel continuous production, and relates to a transition plate welding method and system for heavy gauge galvanized plate welding of a recoiling unit, the system obtains specification parameters of a forward galvanized plate and a backward galvanized plate through a data obtaining module, calls a transition plate parameter library, and selects a non-plating low-carbon steel transition plate body; the process parameter optimization module calculates and outputs the optimal size parameter of the transition plate based on the median transition principle; the first welding control module is used for controlling positioning, clamping, shearing, centering and welding operation in the first welding process; the middle positioning control module is used for controlling the positioning and preparation work of the rear end of the transition plate and the head of the subsequent galvanized plate; the second welding control module is used for controlling clamping, shearing, centering and welding operation in the second welding process; and the post-welding treatment module is used for equipment resetting, loop control and establishment and adjustment of whole-line tension after welding is completed. The welding seam quality can be effectively improved, and the safety risk is reduced.
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