Submerged arc sintered flux for welding SA-508Gr. 3C1.1 steel in third-generation nuclear power equipment and preparation method of submerged arc sintered flux
By preparing a submerged arc sintering flux with a specific ratio for welding SA-508Gr.3C1.1 steel in third-generation nuclear power equipment, the problems of poor performance of domestic welding materials and inconvenience in the supply of imported welding materials were solved, and the welding processability and mechanical properties were optimized to meet the manufacturing requirements of third-generation nuclear power equipment.
Patent Information
- Application Number
- CN202511843414.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-02-10
AI Technical Summary
Domestic welding materials lag behind in performance and stability, while imported welding materials have long delivery cycles and high prices, making it difficult to meet the manufacturing needs of third-generation nuclear power equipment.
A submerged arc sintering flux for welding SA-508Gr.3C1.1 steel in third-generation nuclear power equipment was developed. It contains a specific proportion of fluorite, magnesia, alumina, wollastonite, silica powder, ferrosilicon, manganese ore, calcium titanate and rare earth materials. It is prepared by stirring and mixing, followed by low-temperature baking and high-temperature sintering to optimize welding processability and mechanical properties.
It achieves aesthetically pleasing weld formation, automatic slag shell removal, smooth weld transition, applicability to different heat input conditions, excellent weld mechanical properties, and meets the design requirements of third-generation nuclear power equipment.