What Are The Factors That Affect The Current of Medium Frequency Inverter Spot Welding Machine?

Medium frequency AC power supply can reduce the spatter of resistance welding to a certain extent, but it cannot completely eliminate it. Resistance welding spatter is mainly caused by the instability of the arc during the welding process when the welding current passes through the welding point. Compared with DC power supply, medium frequency AC power supply has some advantages in the welding process, which help to reduce the occurrence of resistance welding spatter:

1. Stable welding arc: The current provided by the medium frequency AC power supply is more stable, which can produce a more stable welding arc and is easier to control than the DC power supply.

2. Higher frequency: The operating frequency of the medium frequency AC power supply is usually higher, which helps the stability of the welding arc and reduces the instability of the arc during the welding process.

3. Reduce oxidation: Due to the high operating frequency of the medium frequency AC power supply, the welding time is short and the residence time of the welding arc is short, which is conducive to reducing the oxidation of the welding area and reducing the occurrence of spatter.

4. Accurate welding parameter control: The medium frequency AC power supply usually has accurate welding parameter control function, which can adjust the current, time, pressure and other parameters according to the welding requirements, which helps to reduce the generation of spatter.

Despite the above advantages of the medium frequency AC power supply, it still cannot completely eliminate the spatter phenomenon of resistance welding. In practical applications, in addition to selecting the appropriate power type, the following measures can be taken to minimize the occurrence of spatter:

Optimize welding parameters: Optimize welding parameters, including current, time, pressure, etc., according to specific circumstances to reduce arc instability.

Keep the welding area clean: Before welding, ensure that the surface of the welding area is clean and reduce the presence of oxides and dirt, which will help reduce the occurrence of spatter.

Choose suitable electrodes and welding wires: Selecting good quality electrodes and welding wires will help reduce arc instability and spatter.

Appropriate pressure and electrode spacing: Maintaining appropriate pressure and electrode spacing will help maintain a stable welding arc and reduce the occurrence of spatter.

In summary, the medium-frequency AC power supply has certain advantages in reducing resistance welding spatter, but it is still necessary to consider other factors comprehensively and take a variety of measures to minimize the occurrence of spatter.

If you have welding machine requirements, please contact Ms. Zhao

E-Mail: pdkj@gd-pw.com

Phone: +86-13631765713