湿法水下焊接的冶金特点及水下焊条设计  

The metallurgical characteristics of wet underwater welding and the design of wet underwater welding rod

作　　者：吴安如[1] 夏平[1] 贺永祥[1] 崔纯波 

机构地区：[1]湖南工程学院机械电子工程系,湖南湘潭411101 [2]湘潭电焊条厂

出　　处：《西安工业学院学报》2002年第2期155-158,共4页Journal of Xi'an Institute of Technology

摘　　要：湿法水下焊接最常见的缺陷是 :焊缝气孔、焊缝成形差、焊缝及热影响区氢致裂纹敏感性大 .作者通过分析水下焊接的冶金特点 ,设计了相应的焊条配方 ,初步解决了焊接过程电弧气泡不稳定的问题 ,并降低了电弧气泡中氢的浓度 ,避免了以上问题的产生 .The most frequently encountered defects in the process of wet underwater welding are the gas hole of welding seam, poor formation of welding, high sensitivity of hydrogen induced cracking on welding seam and heat affected zone.In this paper, the composition of welding rod is designed according to underwater welding metallurgical characteristics. The problem of arc bubble instability is initially solved in the process of welding.The density of hydrogen in arc bubble has been reduced. The questions mentioned above can be refrained from the welding process.

关 键 词：湿法水下焊接 冶金特点 水下焊条 设计 电弧气泡 渣系 氢致裂纹 

分 类 号：TG456.5[金属学及工艺—焊接] TG422.1