Whether in the fields of machinery or technology, China is achieving perfect improvement and rapid development. Therefore, various machines have undergone multiple improvements and further updates to make them more intelligent and efficient. The medium frequency spot welding machine has become an excellent machine with low pollution based on quality and efficiency, as well as its impact on the environment. Below, I will explain the characteristics of the mid frequency spot welding machine and the difference between it and the power frequency AC welding machine.

1、 Characteristics of mid frequency spot welding machine

1. The power factor of the mid frequency spot welding machine is relatively high, which not only reduces the power requirements of the power supply system, but also minimizes the secondary losses in the circuit

2. The mid frequency spot welding machine has great stability and belongs to the category of resistance welding products internationally. Among them, its inverter frequency can reach 1000HZ, and the controllable degree is 20 times that of traditional spot welding machines,

3. Mid frequency spot welding machines can save energy and reduce emissions, especially by reducing significant power consumption. They are highly advocated as energy-saving and emission reducing machines.

4. The operation of the mid frequency spot welding machine is very convenient and has advantages. Its quality and volume are one-third of those of an AC voltage transformer.

5. Using digital mode to control operation can fully improve the current control speed and measurement accuracy during welding.

2、 The difference between mid frequency spot welding machine and power frequency AC welding machine

1. Comparison of energy-saving effects

The intermediate frequency point convex welding machine has a great energy-saving effect, high efficiency, and low loss. It also outputs direct current and improves power, making the energy-saving effect significant. The transformer of the power frequency AC spot welding machine has high losses and low welding power, resulting in more circuit loss resources. The impact on the environment is not as significant as that of mid frequency spot welding machines.

2. Comparison of Heating Rates

The current of the power frequency AC welding machine is zero, which affects the heating time and makes the heating time longer. On the other hand, the medium frequency inverter spot welding machine outputs direct current, and the total heat is relatively more concentrated, resulting in a shorter heating time.

3. Comparison of welding quality

Due to the zero crossing of the current, the adjustment cycle of the thermal efficiency of the power frequency AC welding machine is relatively long. When the current percentage is small, the welding time resolution is small, while the adjustment resolution of the inverter DC spot welding machine can reach 0.25ms. If the zero crossing time becomes longer, the thermal efficiency will be higher under the action of the return inductance, and the welding heat input will be more stable under DC power output.

4. Comparison of equipment

The transformer of the mid frequency spot welding machine is relatively small and the equipment is relatively light and small. The transformer iron core of the power frequency AC welding machine is relatively large, and the equipment is also relatively bulky.

I hope everyone can only refer to and use the above content. Only through the guidance of professional personnel and practical operation and observation is it important.