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How to solve the IGBT module alarm of medium frequency spot welding machine?

Overcurrent occurs in the IGBT module of the medium frequency spot welding machine: the transformer has high power and cannot completely match the controller. Please replace it with a more powerful controller or adjust the welding current parameters to a smaller value. The secondary diode of the... Read More

Steps for designing fixtures for medium frequency spot welding machines

The steps to design the tooling fixture of the medium frequency spot welding machine are to first determine the fixture structure plan, and then draw a sketch. The main tooling content in the sketching stage is as follows: Design basis for selecting fixtures: The design basis of the fixture shou... Read More

How to solve the problem of welding current limit of medium frequency spot welding machine?

The welding current of the medium frequency spot welder exceeds the set upper and lower limits: adjust the maximum current and minimum current in the standard parameters. The preheating time, ramp-up time, and settings have numerical values: for general use, please set the preheating time, ramp-u... Read More

Analysis of the fixture design requirements for medium frequency spot welding machines

The accuracy of the welding structure of the medium frequency spot welding machine is not only related to the accuracy of each part preparation and the dimensional accuracy in the processing process, but also depends to a large extent on the accuracy of the assembly-welding fixture itself, and th... Read More

Why do medium frequency spot welding machine electrodes deform?

When welding the medium frequency spot welder, one of the most important accessories is the electrode, which directly affects the quality of the welding joints. A common wear and tear is electrode deformation. Why is it deformed? When welding workpieces, the service life of the electrode gradual... Read More

Quality assurance method of medium frequency spot welding machine

The medium frequency spot welding machine is suitable for mass-produced welding equipment, but improper quality management will cause huge losses. At present, since online non-destructive welding quality inspection cannot be achieved, it is necessary to strengthen the management of quality assura... Read More

Medium frequency spot welding machine failure cause detection

After the intermediate frequency spot welding machine has been installed and debugged, after a period of operation, some minor faults may occur due to the operator and the external environment. The following is a brief introduction to several aspects of possible faults. 1. The controller does no... Read More

Detailed explanation of medium frequency spot welding machine transformer knowledge

The power of the medium frequency spot welding machine transformer load is certain, and the power is proportional to the current and voltage. Lowering the voltage will increase the current. The spot welding machine is a special working method of the step-down transformer. The medium frequency sp... Read More

How does the current of the medium frequency spot welding machine increase?

In order to compensate for the reduction in welding current caused by electrode grinding, the controller of the medium frequency spot welder provides a current increasing function. Users can set up to 9 incremental segments according to actual conditions. The following parameters are involved in ... Read More

Detailed explanation of medium frequency spot welding machine electrodes

Intermediate frequency spot welding machine electrodes generally use chromium zirconium copper, or beryllium bronze, or beryllium cobalt copper. Some users also use red copper for welding, but only in small batches. Since the electrodes of spot welders are prone to heat and wear after working for... Read More

What is the impact of welding time on the projection welding function of medium frequency spot welding machine?

The welding time plays an important role when the medium frequency spot welding machine performs projection welding. If the welding time is too long or too short, it will have a great impact on the welding quality. When the material and thickness of the weldment are given, the welding time is de... Read More

How is the circuit of the medium frequency spot welding machine constructed?

The intermediate frequency spot welding machine includes a controller and an intermediate frequency transformer. The output terminals of the three-phase bridge rectifier and LC filter circuits are connected to the input terminals of the full-bridge inverter circuit composed of IGBTs. The AC squa... Read More
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