表面处理对铝合金焊丝气孔敏感性的影响  

Effect of surface treatment on gas porosity susceptibility of aluminum alloy welding wire

作　　者：路全彬[1] 龙伟民[1] 杜全斌[1] 吕登峰[1] 

机构地区：[1]郑州机械研究所新型钎焊材料与技术国家重点实验室,河南郑州450001

出　　处：《电焊机》2016年第4期55-58,共4页Electric Welding Machine

基　　金：国家国际科技合作项目(2014DFR50820)

摘　　要：铝合金焊丝洁净度是影响焊缝质量的主要因素之一。研究表面处理对铝合金焊丝气孔敏感性的影响,结果表明,表面处理工艺不同,焊丝氢含量存在差异。未清洗的焊丝,氢含量最高,通过机械抛光方法制备的焊丝氢含量最低;焊丝氢含量与焊缝气孔倾向呈正相关性,随着焊丝氢含量的提高,焊缝气孔形成倾向增加。采用机械法抛光焊丝,减少焊丝氢含量,可防止焊缝气孔的产生。The cleanliness of aluminum alloy welding wire is one of the main factors affecting the quality of the wehting seam. In this study.the effect of surface treatment on gas porosity susceptibility of the ah, minum alloy welding wire is investigated. The resuhs show that the Hydrogen content in the welding wires using different surface treatment technologies is disparity. The Hydrogen content in the wire with no cleaning is the highest, the Hydrogen content in mechanical polished wire is the lowest. The gas porosity susceptibility is positively related with Hydrogen content in the welding wire. Meehanieal polishing is used to decrease the Hydrogen content in the welding wire and prevent the formation of the wehting seam gas porosity.

关 键 词：铝合金焊丝 气孔 机械抛光 表面处理 

分 类 号：TG422.3[金属学及工艺—焊接]