inverter dc spot welding machine features?

medium frequency inverter DC resistance welding control power supply is composed of single-phase or three-phase alternating current through a rectifier circuit into pulsating direct current, which is converted into medium frequency square wave through an inverter circuit composed of power switching devices and connected to a transformer. After step-down, it is rectified into direct current with less pulsation to supply electrodes for welding the workpiece. So what are the characteristics of inverter DC spot welding machine? Today, let's take a look at it!

1. inverter DC spot welding machine features

1, induction load voltage, feedback control constant current, to achieve high quality welding.

2, PRE HEAT, MAIN HEAT power-on mode, preheating before welding, to ensure stable welding quality.

3. Maintain the continuity of energy density, short welding time, and reduce the deformation and discoloration of the base metal. (Welding time is controlled in microsecond units, continuous output mode).

4, easy to change from low current to high current, suitable for precision welding.

5. The upper and lower limits of the current can be set to simply judge whether the welding quality is good or not, and it is suitable for welding automation instruments.

6. The welding current rises with the power-on time to ensure the welding result.