2.25Cr-1Mo与0Cr18Ni9钢焊接工艺研究  

Research on Welding Process of 2.25Cr-1Mo and 0Cr18Ni9

作　　者：刘应虎[1] 何鹏[1] 王长建[1] 陈志林[1] 叶小松[1] 

机构地区：[1]中国第二重型机械集团公司,四川618013

出　　处：《大型铸锻件》2008年第5期6-8,14,共4页Heavy Casting and Forging

摘　　要：在筒体母材为2.25Cr-1Mo钢的大型压力容器生产制造过程中,常涉及到0Cr18Ni9不锈钢内构件与筒节2.25Cr-1Mo钢的焊接。阐述了采用药芯气体保护焊(FCAW)方法焊接该类异种钢的有关工艺要素。通过试验分析了如何调整工艺以改善焊接接头易出现脆化组织的情况,以使接头性能满足产品设计要求。Durlng the manufacture process of heavy pressure vessel with 2.25Cr-1Mo steel barrel body, there will be use the welding process between 0Cr18Ni9 stainless steel internal struetural parts and 2.25Cr-1Mo steel shell ring. The relevant process elements for welding this different kind of steel by adopting the Fuse Core Arc Welding have been described. By means of test, how to adjust the process in order to improve the situation which is easy to appear the embrittlement structure at the welding joint has been analyzed, in order to satisfy the product design requirement for property of welding joint.

关 键 词：药芯气体保护焊 工艺评定 显微组织 过渡层 

分 类 号：TG444[金属学及工艺—焊接]