铜—钢接头的钢焊丝熔化极CO_2焊  

Copper-steel CO_2 Welding with Steel Electrode

作　　者：王克鸿[1] 徐越兰[1] 孔建寿[1] 李鸿谋[1] 郭云增 

机构地区：[1]南京理工大学,北京首都钢铁公司

出　　处：《焊接学报》1996年第4期258-262,共5页Transactions of The China Welding Institution

摘　　要：采用钢焊丝熔化极ＣＯ_２焊焊接铜钢接头，拉伸强度σ_ｂ达２００ＭＰａ，断口扫描电镜表明为塑性断裂，接头未产生热裂纹。Ｘ射线光电子能谱分析表明焊缝中不存在铜的氧化物，接头铜铁含量在熔合线附近产生跃变、含铁低于１０％的区域极窄。in this investigation, copper-steel joints are welded by CO_2 welding with steel electrode. No heat crack is found in welded joints whose tensile strength σ_b attains 200 MPa, and the plastic fracture is demonstrated by SEM. The iron and copper contents sharply change near the junction. the than 10% iron content zone is extremely narrow.

关 键 词：铜 钢 焊接 钢焊丝 二氧化碳保护焊 

分 类 号：TG441.72[金属学及工艺—焊接]