Inverter welding is a proven way to connect stainless steel products. It is recommended to everyone for welding.
Many owners of cottages and garages can not do without an inverter type welding machine. But everyone wonders if stainless steel parts can be welded. The answer is simple. If all the necessary requirements are met, then it will turn out to be done.
Inverter welding is carried out using special electrodes. For example, OZL-8. This type of electrode is suitable for welding stainless steel parts with markings:
• 08X18H10T;
• 08X18H10;
• 12X18H9.
Using special electrodes, intergranular corrosion can be avoided. A weld is obtained when special electrodes are used. He will be able to withstand the effects of acid and alkaline environments, and not just atmospheric phenomena.
Welding a stainless steel inverter is done using piece electrodes. They are designed for welding stainless steel (MMA) and for welding in shielding gas (TIG).
Welding is carried out using a direct current source with the reverse polarity of a short arc. This means that the polarity with a plus sign should be on the electrode, and with a minus sign on the welded part.
An inverter for argon arc welding is used to avoid oxidation or ozonation. Before starting work, it is necessary to thoroughly clean the entire surface of the material from contaminants. In any spatial position, the direction of the weld may be.
When choosing an inverter, the following nuances should be considered:
1. The device must operate at high and low voltage. Deviations of the supply voltage are allowed within 20%.
2. The temperature range is very important. Some models may not work at low temperatures. The inverter EN 60974-1 is capable of operating in the range from - 40 ° C to +40 ° C.
3. For domestic purposes (welding stainless steel or aluminum) 160 amperes at the output will be enough. But for professional work it is better to use devices with a capacity above 200 amperes.
Study your passport carefully. See if the inverter is suitable for your purpose. It indicates the type of electrodes that are suitable for this model. Do not forget that the type of welding depends on the grade of steel and its purpose.
Inverter welding has many advantages:
1. Raising and lowering the voltage in the network to 20% does not play a big role.
2. Very high quality seam.
3. The consumption of electrodes is less because the level of metal spatter is very low.
4. The ability to use more universal electrodes for different types of stainless steel.
If you are the owner of an inverter type welding machine, then you can do all the work yourself. Thus, the cost of the electrodes will be directly proportional to the cost of these works. The maximum price for electrodes is 700 rubles per package, but cheaper options can be found. If you turn to the welder for help, the amount for services will increase at least twice.
Inverter welding is not such an intricate task. All can do it. The main thing is desire, and you will succeed.