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熔化极脉冲氩弧焊是六十年代发展起来的一种焊接工艺。焊接电流由直流基本电流和脉冲电流组成,我们采用上海劳动电焊机厂生产的NZA20—200型熔化极脉冲氩弧焊机,频率有50和100赫兹二种。 脉冲氩弧焊比一般的熔化极氩弧焊具有一系列优点,一般熔化极氩弧焊只能细丝“短路”过渡焊接薄板或大电流“射流”过渡焊接厚板才是稳定的,而中间范围为“熔滴”过渡,电弧不稳定,这就限制了一般熔化极氩弧焊的应用范围。脉冲氩弧焊由于有
Melting pulse welding is developed in the sixties a welding process. Welding current from the DC basic current and pulse current composition, we use the Shanghai labor welding factory production NZA20-200-type melting pulse welding machine, the frequency of 50 and 100 Hz two. Pulse argon arc welding than the average melting argon arc welding has a series of advantages, the general melting amalgam welding only filament “short circuit” transition welding thin plate or high current “jet” transition welding plate is stable, while the middle Range of “droplet” transition, the arc instability, which limits the scope of the general melting amalgam welding applications. Because of the pulse argon arc welding