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通过对不同弧长、不同电流氩弧的高速摄影拍摄以及利用影片数据分析处理系统对其动态过程的研究，发现用高斯函数模拟氩弧钎焊加热区的比热流ｑ（ｒ）分布特性时，理论计算值与测量值符合得较好。实验结果表明，氩弧钎焊时采用大电流的焊接规范既不经济亦无必要。因为，由ｑ（ｒ）分布模型可知，当弧长不变增加焊接电流时，氩弧钎焊加热区半径变小，而ｑｍ急剧增大，往往诱发液态钎料过热，毛细填充作用不强等问题，使钎焊质量下降；当焊接电流不变增加弧长时，加热区半径显著增大，ｑｍ减小，反而有利于保证氩弧钎焊质量和生产效率。
Through the study of the dynamic process of different current arc arcs with different arc length and different current argon arc, the dynamic characteristics of q (r) distribution in the heating zone of argon arc brazing were simulated by Gaussian function. The calculated value is in good agreement with the measured value. The experimental results show that it is neither economical nor necessary to use a welding current with high current during brazing. Because, by the q (r) distribution model shows that, when the arc length increases the welding current, the arc welding brazing radius becomes smaller, and qm increased sharply, often inducing liquid solder overheating, capillary packing is not strong Problems, so that the quality of brazing decline; when the welding current increases arc length, the heating zone significantly increased the radius, qm decreases, but help to ensure the quality of argon arc brazing and production efficiency.