What is the difference between medium frequency electric welding machine and power frequency electri

1. The welding current of the intermediate frequency welding machine is close to complete DC, because there is no obvious peak current, the nugget size is steadily expanded, there is almost no spatter, and the welding quality is stable and the thermal efficiency is stable.

High. Compared with the power frequency welding machine, the welding current of the medium frequency inverter welding machine can be reduced by 40%, and the service life of the electrode is greatly extended.

2. The transformer of the intermediate frequency welding machine is small in weight and size, and the input power is low, which is convenient for the use of transformer type welding tongs. When applied to robot spot welding operations, the load of the robot can be reduced, while the power frequency welding machine is used in automatic lines, and the robot with a stronger load capacity is required.

3. The response speed of the intermediate frequency spot welding machine is only 1 20 of the power frequency welding machine, and the current can reach the set value faster, analyze the parameters more accurately, and the welding quality control is more accurate.

4. Three-phase load balance and power factor of intermediate frequency spot welding machine.

High (left and right), energy saving. The two-phase power frequency welding machine is difficult to ensure the phase voltage when working.

The power factor is low (left and right), and it is difficult for the three-phase power frequency welder to achieve constant current output.

5. The intermediate frequency spot welding machine is suitable for the welding of a variety of materials and dissimilar metals, such as aluminum alloy, stainless steel, high-strength steel plate and other materials. Also, for galvanized sheets.

and ordinary multi-layer boards.

The welding quality is also much higher than that of the power frequency welding machine. The power frequency welding machine is only suitable for materials with good welding performance, such as mild steel plates.

Hello, I am happy to serve you and give you the following answers: Generally speaking, the frequency of the electric welding machine is generally 50-60hz in the mountains. If something goes wrong, you can take the following steps to fix it:

1.Check whether the power supply voltage meets the requirements, if not, you can adjust the power supply voltage; 2.Check the circuit of the welding machine to make sure that the circuit is connected correctly; 3.

Check the wiring of the welding machine to make sure that the wiring is correct; 4.Check the power supply of the welding machine to make sure the power supply is normal; 5.Check the controller of the welding machine to make sure that the controller is normal and hungry; 6.

Check the power supply voltage of the welding machine to ensure that the voltage is normal; 7.Check the power frequency of the welding machine to make sure the frequency is normal. Personal Tips:

When using an electric welding machine, it is necessary to ensure that the power supply voltage, circuit connection, wiring, power supply, controller, voltage, and frequency are all normal to ensure the quality of welding.

Characteristics of ordinary resistance welding welding:

1. Affected by the low frequency of power frequency (50Hz), the welding quality is unstable.

2. There is more spatter during the welding process.

3. Lack of effective data monitoring of welding quality.

4. Excessive wear of the electrode.

5. The power factor is low, and a large number of capacitance compensation cabinets are added to improve the power factor.

6. Excessively high energy costs.

7. The influence of the strong magnetic field on human health of the secondary output of AC welding.

Welding features of medium frequency electric welding machine:

1. Using digital intermediate frequency welding controller, the welding quality can be effectively controlled.

2. The spatter in the welding process is greatly reduced, the welding quality is improved and the welding environment is purified.

3. It can be equipped with a suspension welding machine and an integrated welding tong.

4. Powerful welding function, providing welding quality analysis data and monitoring 5. Integrated modular design, stable performance, high reliability and low welding failure rate of welding control system.

6. The use of electrode pressure is reduced, and the life of the electrode is greatly improved.

7. Three-phase balanced load and intermediate frequency welding technology are adopted, and there is no need to add capacitance compensation cabinets.

8. Digital intermediate frequency welding, energy saving of more than 30%, greatly reducing energy costs.

9. Precise control of welding parameters (1ms) can perfectly weld multi-layer steel plates with variable thickness than steel plates, high-strength steel plates and aluminum alloys.

10. The ultra-small size and weight of the welding transformer meet the application of robots and integrated welding tongs.

11. HMI control, humanized operation and programming software, convenient and fast.

The long-term problem of ordinary resistance welding welding:

Instability of welding quality.

Splashing during welding.

There is a lack of effective data monitoring of welding quality.

Excessive wear of the electrodes.

The power factor is low, and a large number of capacitance compensation cabinets are added to improve the power factor.

Excessively high energy bills.

The impact of the strong magnetic field on human health of the secondary output of AC welding.

Challenges in welding high-strength steel plates.

Galvanized steel sheet, welding process of multi-layer steel plate.

The gradual application of aluminum alloy steel plate materials.

Welding robots are widely used in automated flexible production lines.

The need to continuously reduce energy costs, quality costs, maintenance costs.

Product features of intermediate frequency inverter spot welding machine:

1. High welding stability.

2. Power saving of more than 30% and low operating cost.

3. Three-phase power balance input, power factor up to 95%.

4. Low welding current and electrode pressure.

5. There is almost no induced energy loss in the secondary circuit.

6. The life of the electrode is more than doubled, and the electrode grinding time is reduced.

7. Greatly save the installation cost of power installation and auxiliary facilities such as water and gas.

8. More accurate, faster and more comprehensive control and analysis of welding parameters.

9. Shorter welding time, improve work efficiency and welding quality.

10. The welding range is wider, and the welding effect of low carbon steel, stainless steel, copper, aluminum and galvanized sheet is better.

95% of the resistance welding machines in automobile manufacturing plants are AC, and the AC spot welding machine and the power grid are connected by thyristors, so there is a blank area, the heat is not concentrated and the welding quality is unstable. The three-phase load balancing of the medium frequency spot welder, low input, no grid transition process, high power factor, and power saving. In the assembly and welding of the car's body-in-white, a 160kVA AC suspended spot welding machine is often used, but if you use an intermediate frequency spot welding tong, only 44kva is enough.