S31254超级不锈钢薄壁管的现场焊接要点  

Highlights of Field Welding for S31254 Super Stainless Steel Thin-wall Pipes

作　　者：童朝刚 廖铁永 TONG Chao-gang;LIU Tie-yong(SINOPEC Nanjing Engineering&Construction Inc.,Nanjing 211100,China)

机构地区：[1]中石化南京工程有限公司,江苏南京211100

出　　处：《硫磷设计与粉体工程》2020年第5期21-23,I0002,共4页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：S31254超级不锈钢强度高,焊缝要求高,对焊工的要求也高。分析了S31254超级不锈钢薄壁管的化学组分及焊接性,在多次针对性焊接实验的基础上,结合施工实例,介绍了该类不锈钢薄壁管的焊接施工工艺规范和操作技术要求,从而提高焊接一次合格率,有效地防止焊接变形,确保施工质量和进度。S31254 super stainless steel comes with high strength,high weld requirements,and thus high requirements for welders.The chemical composition and weldability of the S31254 super stainless steel thin-wall pipe are analyzed.Based on multiple specific welding test,and actual construction experience,the welding procedure specification and operating technical requirements are outlined for such stainless steel thin-wall pipes,so as the increasing welding pass rate,effectively welding deformation is prevented,and construction quality and progress are ensured.

关 键 词：不锈钢 焊接工艺 薄壁管 操作要点 

分 类 号：TG441.4[金属学及工艺—焊接]