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采用新型脉动送丝机构对钢焊丝MAG焊进行了试验研究 ,结果表明 :在远远低于临界电流值时即可实现恒定直流射滴过渡 ,而且熔滴尺寸及过渡频率可以在一定范围内进行人为控制 ,突破了钢焊丝MAG焊射滴过渡临界电流的限制
A new type of pulsating wire feeding mechanism was adopted to test the MAG welding of steel wire. The results show that the constant DC droplet transfer can be realized when the welding wire is far below the critical current value, and the droplet size and transition frequency can be carried out within a certain range Artificial control, breaking the limit of the critical current of MAG welding droplet transition of steel wire