摘要
采用电磁超声协同驱动的新型钎焊技术,通过构建电磁-流场多物理场耦合模型,系统探究了Zn-5Al液态钎料在C_(f)/6061Al复合材料界面间隙内的动态填缝行为。研究表明,交变磁场、静磁场与涡流场的协同耦合作用可在钎料内部诱发多维度洛伦兹力,当电流频率处于25~30 kHz区间且静磁场强度为0.05~1 T时,液态钎料的填缝长度达14.03 mm。高频洛伦兹力激励产生的电磁超声波使钎料内部声压呈现类正弦周期性振荡特性,而半波偏移效应通过“吸引-排斥”动态作用机制驱动液态钎料完成高效填缝过程。
A new brazing technology driven by electromagnetic ultrasound was adopted to systematically investigate the dynamic filling behavior of Zn-5Al liquid brazing material in the interface gap of C_(f)/6061Al composite material by constructing an electromagnetic flow field multi physics coupling model.The results showed that the synergistic coupling of alternating magnetic field,static magnetic field and eddy current field could induce multi⁃directional Lorentz force inside the solder.When the current frequency was in the range of 25~30 kHz and the static magnetic field strength was 0.05~1 T,the filling length of the liquid solder was 14.03 mm.The electromagnetic ultrasonic wave generated by high⁃frequency Lorentz force excitation made the internal sound pressure of the solder exhibit sinusoidal periodic oscillation characteristics,and the half⁃wave offset effect drove the liquid solder to complete the filling process through the"attraction⁃repulsion"mechanism.
作者
李玉倩
曲铭琳
陈桂娟
张茗瑄
LI Yuqian;QU Minglin;CHEN Guijuan;ZHANG Mingxuan(Public Works Department 2 of Daqing Petrochemical Company,Daqing 163714,Heilongjiang,China;School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,Heilongjiang,China)
出处
《焊管》
2025年第8期114-122,共9页
Welded Pipe and Tube
基金
大庆市指导性科技计划项目“电磁超声辅助钎焊的界面作用机制及组织调控研究”(项目编号zd-2025-015)。
作者简介
李玉倩(1990-),女,硕士研究生,主要从事设备安全与检测研究;通讯作者:陈桂娟(1981-),女,博士,主要从事异种材料连接的研究。
