The Working Principle Of Inverter Welding Machine
The inverter welding machine is mainly a inverter arc welding power generated by the inverter, also known as the arc welding inverter. It is a new type of welding power supply. It is an AC power frequency (50Hz). Turn into DC, and then use high -power switching electronic components (crystal tube SCR, transistor GTR, field -effect tube MOSFET or IGBT), inverted into a few KHz ~ dozens of KHz intermediate frequency AC power, and at the same time, the transformer is reduced to dozens of dozens of welded dozens of dozens V voltage, rectify the current, and outputs a relatively stable DC welding current through the electrical anti -filtering output.
The total development trend of the inverter welding machine is to develop towards large capacity, lightweight, high efficiency, modularization, intelligent development and the core of improving reliability, performance and broadening. In the process of resistance welding, cutting, and other processes. High -efficiency and high power density density is one of the main goals pursuing the international arc welding inverter.
The principle of the inverter welding machine is as follows: three -phase or single -phase work frequency AC electricity is used for a complete current. After filtering, a smoother DC electricity is obtained. The inverter circuit composed of IGBT will turn the DC electricity to dozens of KHz AC power. After the pressure is reduced, a stable DC output welding current is obtained by rectification filtering.
Due to the high operating frequency of the inverter, the iron -hearted cross -sectional area and coil turns of the main transformer are greatly reduced. Therefore, the inverter welding machine can largely save metal materials to a large extent, reduce the size and weight of the shape, and greatly reduce the energy loss of electricity. More It is important that the inverter welding machine can adjust the output current within the time of the microsecond, so the ideal control process required by the welding process can be achieved, and the satisfactory welding effect can be obtained.
