Is the spot welding machine good or DC?
Arc welding is caused by the electromagnetic force in the welding circuit during the direct current arc welding. By changing the position of the ground wire or reducing the welding current and changing the angle of the electrode, the effect of magnetic biasing can be weakened.
AC welding machine is the wire package step-down transformer using welding rod, this machine, old technology, power consumption, copper consumption.The DC welding machine includes thyristor, inverter (MOS tube, IGBT single tube and IGBT module), and the technology is more and more advanced.The inverter is a new technology that has appeared in the last 10 years, saving more than 35%. Because there is no large transformer, a great deal of copper is saved, and the transformer consumption is also reduced a lot. The disadvantage of DC is that the magnetic deviation blows, and the other is all advantages. Arc stability, weld formation is good, and there is welding rod, general acid welding rod is AC and DC can use, alkaline welding rod recommend DC, cellulose electrode, seems to only dc.
All the same, the convenient point of communication
