Mid frequency spot welding machines are generally not harmful. Unless the equipment malfunctions during use, resulting in welding problems. So let's now understand what causes the malfunction of the intermediate frequency spot welding machine?

1. Is the device malfunctioning and not powered on?

The crystal valve tube inside the machine is defective, and the P board inside the controller is defective.

2. No action after startup

Insufficient gas pressure, lack of compressed air, poor electromagnetic valve, poor start switch or controller not connected to power, temperature relay action.

3. Are there cracks in the solder joints?

There are dirt on the surface of the workpiece, excessive welding current, insufficient electrode pressure, defects in the welded metal itself, misalignment of the lower electrode, and improper machine adjustment.

4. Are there scratches or burn marks on the solder joints?

Excessive welding current, insufficient electrode pressure, defects in the welded metal itself, excessive dirt on the electrode end face, poor cooling of the electrode head, and rough grinding of the electrode end face.

5. Are the solder joints too small or not strong enough?

Welding current is too low, welding time is too short, welding circuit contact is poor, electrode pressure is too high, workpiece thickness and material differences are too large, and there is too much dirt on the electrode end face.

6. Is the indentation on the welding point too large?

Welding current is too high, electrode end face diameter is too small or deformed, upper and lower electrode end faces are not aligned or parallel.

7. Is there a large amount of sparks splashing?

Excessive welding current, insufficient electrode pressure, poor cooling of electrode tip, and excessive contamination of workpiece or electrode.

The above problems are quite common in the process of use. To control these problems, we can do a good job of maintenance in daily work. This can not only reduce the occurrence of faults, but also extend the service life of the intermediate frequency spot welding machine. It is a double-edged sword, which can save you a lot of costs.