镍基合金带极堆焊技术在稳压器制造中的应用  

Application of Nickel-Based Alloy Strip Surfacing Technology in the Manufacture of Pressurizers

作　　者：李鹏飞 张海林 常旭 Li Pengfei;Zhang Hailin;Chang Xu

机构地区：[1]二重(德阳)重型装备有限公司,四川德阳618000

出　　处：《大型铸锻件》2022年第4期28-32,共5页Heavy Casting and Forging

摘　　要：为满足稳压器下封头电加热器套管的装配和焊接固定,需要在其内壁堆焊镍基合金台阶并加工出接管孔,堆焊焊材为Inconel 690合金。针对稳压器封头的镍基凸台结构,采用镍基合金焊带开发带极堆焊工艺方案,进行了焊接工艺评定和试验件的实际焊接。结果表明,采用镍基合金带极堆焊技术进行稳压器下封头镍基凸台的堆焊,各项性能指标和质量控制均能满足产品制造技术要求。In order to meet the assembly and welding fixation of the electric heater sleeve of the lower head of the pressurizer,it is necessary to perform the surfacing of nickel-based alloy steps on the inner wall and manufacture the nozzle hole,and the surfacing welding material is Inconel 690 alloy.In this paper,aiming at the nickel-based convex platform structure of the pressurizer head,a nickel-based alloy welding strip has been used to develop a strip surfacing welding process plan,and the welding process qualification and the actual welding of the test piece have been carried out.The results show that the use of nickel-based alloy strip surfacing technology for surfacing of the nickel-based convex platform of the lower head of the pressurizer can make its various performance indicators and quality control meet the technical requirements of product manufacturing.

关 键 词：Inconel 690合金 带极堆焊 稳压器 

分 类 号：TG44[金属学及工艺—焊接]