Inverter DC spot welding machine

Intermediate frequency inverter DC resistance welding control power supply is a single-phase or three-phase AC power that is transformed into a pulsating DC power through a rectifier circuit. The inverter circuit composed of power switching devices becomes an intermediate frequency square wave and is connected to the transformer. After the voltage is reduced, it is rectified into a smaller pulsation The direct current is supplied to the electrode to weld the workpiece. The inverter usually uses current feedback pulse width modulation to obtain a stable constant current output. The intermediate frequency inverter spot welder has excellent performance and is suitable for welding thin metal parts with high thermal conductivity and fine workpieces.

Features of IST inverter DC spot welding machine

1) Induces the load voltage and controls the constant voltage with feedback to achieve high-quality welding.

2) PRE HEAT and MAIN HEAT are energized, preheating first and then 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 material. (Welding time is controlled in microseconds, 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. It is suitable for welding automation equipment.

6) The welding current increases with the energizing time to ensure the welding result.