SALI MMA 300 Welding Machine

Electric welding machine is to use the high temperature arc generated by the positive and negative poles in the moment short circuit to melt the solder and welding materials on the electrode, to achieve the purpose of their combination. The structure of the welding machine is very simple, to put it plainly is a high-power transformer, the 220/380V AC into a low voltage, high current power supply, can be DC can also be AC. The welding transformer has its own characteristics, that is, it has the characteristics of sharp voltage drop. In the electrode voltage drop, after ignition in the regulation of the working voltage of electric welding machine, in addition to a 220/380 v voltage transformation, secondary coil also have tap changing voltage, as well as with iron core to adjust, adjustable core electric welding machine is usually a large power transformer, is made by using the principle of inductance, inductance in on and off they produce a great voltage change, The high voltage arc generated when the positive and negative poles are short-circuited is used to melt the solder on the electrode. To bring them together. A voltage is applied between the electrode and the workpiece, and the energy of the arc is used to melt the electrode and heat the base metal by scratching or touching the initiating arc.