低频纵向磁场对堆焊层硬度及耐磨性能的影响  

Influence of low frequency longitudinal magnetic field on hardness and wear resistance of submerged arc hardfacing

作　　者：路林[1] 常云龙[1] 路明 吕鸿涛 

机构地区：[1]沈阳工业大学,110870 [2]沈阳延锋江森座椅有限责任公司,110180 [3]沈阳新松机器人自动化股份有限公司,110168

出　　处：《焊接》2012年第9期17-20,69,共4页Welding & Joining

基　　金：先进焊接与连接国家重点实验室开放课题研究基金(AWPTM02)

摘　　要：采用埋弧堆焊技术在母材表面堆焊特种材料,通过大量的工艺试验及对焊缝宏观参数的测量,研究了在外加纵向磁场的情况下,激磁电流及磁场频率对焊缝成形、堆焊层硬度以及对堆焊层耐磨性能的影响。结果表明,外加低频磁场在激磁电流1.5 A,磁场频率10 Hz下,电磁搅拌可以有效地减少柱状晶特征,有效地提高堆焊层熔敷金属的硬度。Submerged arc hardfacing was used.By a lot of tests and measurement of the hardfacing parameters,the influence of longitudinal magnetic field current and magnetic field frequency on the weld formation,hardness,and wear-resistance were studies.The experimental results indicate that low-frequency longitudinal magnetic field at the exciting current of 1.5 A and the magnetic field frequency of 10 Hz can increase the deposited metal hardness effectively and improve hardness and wear-resistance of hardfacing layer.

关 键 词：低频磁场 纵向磁场 耐磨性 硬度 埋弧堆焊 

分 类 号：TG455[金属学及工艺—焊接]