15CrMoR薄壁封头堆焊工艺  

Overlaying procedure of 15Cr Mo R thin-wall head

作　　者：张洪昌 周礼新 冷雪峰 王鸿雁 李欣 王红亮 

机构地区：[1]开封空分集团有限公司,河南开封475000

出　　处：《电焊机》2015年第7期129-131,共3页Electric Welding Machine

摘　　要：对15Cr Mo R进行耐蚀堆焊工艺评定,确定了带极堆焊的焊接工艺。进行薄壁封头的堆焊工艺性试验,分析薄壁封头容易发生堆焊变形的情况,设计制作薄壁封头的堆焊工装。分析薄壁封头产生焊接变形原因,确定采取焊前预热、焊后加热缓冷等工艺手段。针对高温焊道找水平难的问题,设计制作了焊道找水平工具。结果表明,选择合理的堆焊工艺及堆焊工装,能够获得符合要求的薄壁堆焊封头。The band electrode overlaying procedure is selected through the overlaying welding procedure qualification of 15CrMoR. After overlaying welding technological experiment on the thin-wall head ,analyze welding deformation easily occur on thin-wall head, a special overlaying welding tool is designed and made. By analyzing the overlaying deformation cause of thin-wall head,some procedures like preheating before welding and slowly cooling down after welding etc. are taken. Focusing on the leveling of high- temperature welding pass,a leveling tool is specially designed and made. It finally tunas out that with proper and reasonable overlaying procedures and welding tools,the acceptable thin-wall head by overlaying welding can be obtained with satisfactory requirements.

关 键 词：薄壁封头 带极埋弧堆焊 堆焊工装 焊接变形 

分 类 号：TG455[金属学及工艺—焊接]