Which is the best small electric welder for home use? What are the advantages and disadvantages of inverter DC and AC?

Small home welding machine, relatively speaking, inverter AC welding machine is better, its scope of application is wider, easy to carry.

One, inverter AC welder scope of application

AC beacon welder output for the alternating current, so do not distinguish between positive makeup and reverse connection method, the output current is not stable, the welding quality is poor, only suitable for welding common acidic electrodes. That is to say, AC welding machine is not suitable for welding alkaline electrodes and stainless steel electrodes.

Two, inverter DC welder scope of application

DC beacon welder output for DC, so divided into positive and negative connection method, the output current is stable, high welding quality. Applicable to ordinary acidic electrodes, alkaline electrodes, stainless steel electrodes, cast iron electrodes and other welding rods of almost all grades.

Electric welding machine:

Electric welding machine is the use of positive and negative poles in the instantaneous short-circuit generated by the high temperature arc to melt the solder on the electrode and the material to be welded, so that the purpose of the combination of contacted materials. Its structure is very simple, is a high-power transformer. Welding machine generally according to the type of output power supply can be divided into two kinds, one is AC power supply, one is DC. They use the principle of inductance, inductance in the connection and disconnection will produce a huge change in voltage, the use of positive and negative poles in the instantaneous short-circuit produced by the high-voltage arc to melt the solder on the electrode to make them achieve the purpose of the atomic combination.