水下焊接稳弧装置的磁场及其双流道流场  

Study on magnetic field and double channel flow field of a underwater wet welding arc stabling device

作　　者：李志刚[1] 贾慧芳[1] 李刚[1] 王健[1] 

机构地区：[1]华东交通大学载运工具与装备教育部重点实验室,江西南昌330013

出　　处：《电焊机》2014年第3期55-59,共5页Electric Welding Machine

基　　金：江西省对外科技合作项目(20121BDH80016)

摘　　要：为了解决水下焊接焊缝质量差的问题,提高水下焊接自动化,设计了一种用于水下湿法焊接稳弧装置,可为水环境中的电弧制造半干环境和进行磁力约束,达到稳定水中焊接电弧的目的。采用有限元方法对该装置的磁场进行分析。运用流体力学仿真方法对该装置的高压气道和保护气道进行了仿真分析,分析了在水下高压环境下,不同气压对高压气道流场的影响和不同进气口速度对保护气道流场的影响,验证了高压气道的排水效果和保护气道的保护效果。In order to solve the problem of poor quality of underwater welding and improve underwater welding automation,a new device for underwater wet welding arc stabling device is designed,semi-dry environment and magnetic constraints tbr the arc underwater are provided,the purpose of stable water welding arc can be achieved.The magnetic field of the deviee was analyzed with adopting finite element method.The fluid mechanics simulation method is used for simulating and analyzing the high-pressure airway and protective airway of the device, the effect on different pressure of high-pressure airway and the effect on different pressure protective airway is analysed in the underwater high pressure environment.The drainage effect of high-pressure airway and the protection effect of protective airway is validated.

关 键 词：水下湿法焊接 稳弧装置 磁场 双流道 

分 类 号：TG456.5[金属学及工艺—焊接]