Capacitor energy storage point projection welding machine uses capacitor to store energy. When the capacitor is discharged instantaneously, the energy can make small area solder joints melt and weld. Compared with other welding methods, such as AC machine, the instantaneous power from the power grid is low, the load of each phase is balanced, the power factor is high, and the concentrated energy can be provided to the welding area, the weldment with good surface quality and small deformation can be obtained, and some refractory non-ferrous metals with good heat conduction and conductivity can be welded. Suitable for welding aluminum, copper, silver, nickel and alloy materials. The welding method has been widely used in industrial production, such as hardware, home appliances, electronics, metal utensils and other industries.
The capacitor energy storage spot welding machine is composed of frame, pressure mechanism, transformer, capacitor, controller and pneumatic part. The microcomputer control system can effectively control the charging and discharging process, and can respectively adjust the time of preloading, discharging, forging, maintaining and resting and the charging voltage value. It is convenient to regulate. The specially designed special control circuit has the functions of phase-shift trigger charging, discharge current detection and commutation discharge, so that the capacitor energy storage spot can avoid the energy consumption caused by the heating of current limiting resistance and the magnetization of resistance welding transformer.