直流GTAW电弧条件下钎料润湿铺展温度场的数值模拟及分析  

Numerical Simulation and Analysis of the Wetting and Spreading Temperature Field under DC GTAW Arc

作　　者：李瑞峰[1] 于治水[1] 余春[1] 

机构地区：[1]华东船舶工业学院材料与环境工程系,江苏镇江212003

出　　处：《华东船舶工业学院学报》2003年第1期53-57,共5页Journal of East China Shipbuilding Institute(Natural Science Edition)

摘　　要：对在直流钨极惰性气体保护(GTAW)电弧钎焊过程中电弧加热的非稳态条件下温度场对钎料铺展润湿的影响进行了模拟研究。分析了不同的钎工艺参数对特定温度(锌层熔点及钎料熔点)场影响。从而得出钎焊工艺不同对镀锌层破坏以及钎料润湿铺展的影响,对实际的电弧钎焊工艺起到一定的指导作用。The temperature field that influences the wetting and spreading behavior of brazing filler metal under the unsteady arc heating is simulated and studied. The brazing parameters that influence the special temperature (the melt temper of Zinc plate and the melt temperature of brazing filler metal) field are analyzed too.The influence on the spreading of brazing filler metal and the melting of Zinc plate by individual arc brazing process can be got, and the results can be used to instructing arcbrazing process.

关 键 词：GTAW电弧 润湿 数值模拟 铺展 温度场 

分 类 号：TG454[金属学及工艺—焊接]