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.
出处
《焊接》
北大核心
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)
关键词
低频磁场
纵向磁场
耐磨性
硬度
埋弧堆焊
low-frequency magnetic field
longitudinal magnetic field
wear resistanc
hardness
submerged arc hardfacing
