Capacitor box life of energy storage welding machine

What is capacitor energy storage welding?

The principle of capacitor energy storage welding is to use the energy slowly stored in the capacitor from the power grid. In a short period of time, the metal is heated and melted by discharging the welded workpiece through the resistance welding transformer.

What is capacitor discharge welding?

Capacitive discharge welding, particularly for large-scale systems, is typically done using film-type capacitors. These capacitors store energy along alternating plates separated by a dielectric film. Charge is stored statically along the lengths of the plates. The basic configuration of the film capacitor is provided in Figure 1.

Are electrolytic capacitors a viable alternative for large capacity CD welding systems?

Electrolytic capacitors (E-caps) offer a potential alternative for large capacity CD welding systems. E-caps incorporate an electrolyte impregnated into a separator. The separator is then sandwiched between anodic and cathodic foils. A dielectric is also used to prevent direct contact of the foils with the electrolyte.

How does CD welding work?

With CD welding, the main energy is stored in a capacitor arrangement. In application, that energy is discharged through a transformer creating again low voltage – high current power for welding. CD welding does differ from conventional resistance welding in a number of ways(1).

Does a film capacitor provide a similar voltage tolerance for CD welding?

Performance was evaluated based on current range behavior and metallographic response. Conclusions from this work include: to film capacitors – An array was developed to provide similar voltage tolerance and system capacitance to a standard film variant conventionally used for CD welding.

What is a capacitor discharge spot projection welding machine?

The principle of the capacitor discharge spot projection welding machine is to charge and store a group of high-capacity capacitors through a small transformer in advance, and then discharge and weld the welding parts through a high-power welding resistance transformer.