埋弧带极堆焊收弧缺陷分析  

Defects Analysis of Strip Surfacing Ending Stage During Submerged Arc

作　　者：王斌[1] 张俊领[1] 杨飞 周翠[1] 

机构地区：[1]西南石油大学材料科学与工程学院,四川成都610500 [2]大西洋焊接材料股份有限公司,四川自贡643010

出　　处：《热加工工艺》2012年第19期139-141,共3页Hot Working Technology

摘　　要：针对埋弧带极堆焊层的夹渣缺陷,利用PT检测确定了夹渣的宏观分布,利用光学显微镜、扫描电镜研究了夹渣缺陷的微观形貌,发现夹渣主要出现在堆焊层表面1mm范围,夹渣的出现对堆焊层的δ铁素体含量影响不大;能谱及XRD分析表明,夹渣主要是残存的熔渣,熔渣的形成与焊剂中的Si含量偏高及熔池太浅有直接关系。For the slag defects of submerged are strip surfacing, the macroscopic distribution of slag was determined using PT testing. The optical microscopy and scanning electron microscopy was used to study the morphology of the slag defects. The experiment results show that the slag occurs mainly in the overlay surfacing lmm range, and the emergence of the slag do not have influence on δ ferrite content. The slag is maily residual slag, the formation slag is directly related with the high content of Si and shallow molten pool.

关 键 词：带极堆焊 收弧 缺陷 夹渣 

分 类 号：TG445[金属学及工艺—焊接]