For different types of welding, different types of inverters are used: for argon arc welding, for manual welding, for plasma and semi-automatic cutting.
Inverter welding is an actively implemented development that ensures stable combustion, regardless of current fluctuations in the mains, and easy ignition. What is the secret of such insane popularity of inverter devices?
Inverter welding guarantees a smooth and high quality weld. The welding machine includes a block of power circuits, which is based on MOSFET transistors and a stabilization inductor, which reduce the ripple of the rectified current. The alternating current is supplied to the rectifier, after which the inverter module converts the direct current into high-frequency current, then feeds it to the welding transformer. The unique structure of the device made it possible to reduce the weight of the transformer several times, to make it easier and more mobile in operation. And bring efficiency to 90 percent.
Inverter welding is simply indispensable forhome use, very often it is used in construction, car repair shops, during the installation of light metal structures. Even a person without special education can work with such a device, it is enough to have only general knowledge and an idea about welding.
Inverter welding: benefits
- automatic regulation of the welding arc;
- increased protection against electric current fluctuations, smooth sine (high current quality);
- maximum efficiency, minimum weight;
- automatic memorization of frequently used welding modes.
Every owner should have inverter welding at hand. Yes, it is needed infrequently, however, there are times when you simply cannot do without it. Unfortunately, you have to pay a lot of money for a good device. There is a way out - this is to assemble an inverter device with your own hands. Do-it-yourself inverter welding is available to everyone.
If you have a little desire and the ability to read and solder circuits, we can assume that 50% of the work is already done. In the process of assembling inverter devices, semiconductor parts are used: capacitors, transistors, diodes, and so on. The inverter device consists of three basic modules: input rectifier; inverter module; output rectifier. The input rectifier is made from high-power diodes of domestic production (for example, DL 112). Next, the drive comes into operation, which is a capacitor designed for voltagenot less than 300 V. Then the inverter module comes into operation, containing a high-frequency transformer, which generates unipolar or bipolar pulses. Parts of the apparatus work under heavy load, so they generate a lot of heat. In this matter, it will not be superfluous to think about using a cooler and powerful radiators that dissipate the generated heat. All connections must be secure, and the case itself must be insulated.
Currently, inverter welding is considered the best welding machine. Feedback on this device is mostly positive.
