等离子流力
等离子流力-
试验研究表明外加纵向磁场对电弧的电流密度、等离子流力有很大影响。
By experiment results , we find that outside longitudinal magnetic-field has an evidently effect on current density of arc and plasma fluid force .
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从熔滴质量差异的角度间接分析了超声引起作用力的大小，超声引起的作用力与等离子流力处于同一数量级，随着焊接电流升高呈缓慢下降的趋势。
The force caused by ultrasonic was analyzed based on the difference of droplet mass . The results showed that the force caused by ultrasonic was in the same order with plasma flow , and decreased slowly with the welding current increasing .