一种钢桁梁主桁杆件制作方法
By using the inverted assembly method, a specific welding sequence, and low energy parameters, the problem of welding deformation of the main truss members of the steel truss was solved, achieving high-precision and high-strength welding results that meet the requirements of heavy load and fatigue resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY BAOJI BRIDGE YANGZHOU CO LTD
- Filing Date
- 2025-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the welding sequence of the main truss members of the steel truss is unreasonable, which leads to welding deformation and affects the geometric accuracy of the members and the accuracy of the hole group position.
Using an inverted method and a specific welding sequence, the inside of the box is welded first, then the outside. Combined with a flipping welding process, welding is carried out in sections and steps, using low-energy welding parameters to control the distribution of welding heat and reduce deformation.
Effectively control welding deformation, ensure accurate box opening dimensions, improve weld strength and connection reliability, meet heavy load and fatigue resistance requirements, and extend service life.
Smart Images
Figure CN121315591B_ABST