What are the common problems with the daily use of automated soldering machines

It mainly manifests in phenomena such as virtual soldering, tin stacking, and continuous soldering. In response to the welding defects during the operation of these machines, we have summarized the following problem points and solutions:

Virtual soldering problem: Virtual soldering generally refers to the situation where the solder joints appear to be intact during the welding process, but in reality, they are not salvaged or the amount of solder penetration is insufficient. The main reason for this situation is that the soldering iron head does not stay on the solder pad for enough time or the temperature is too low,

Solution: We only need to extend the residence time of the soldering iron head or increase the temperature to solve it. If you are not familiar with virtual soldering, you can learn more about how to avoid missed soldering in automatic soldering machines?

2、 Tin stacking problem: Tin stacking generally refers to welding and spot welding into a spherical shape, with the legs of the pins not leaking out. The main reason for this phenomenon is due to the large amount of tin fed, and another reason is that the pins of electronic components are too short and the solder pads are not exposed.

Solution: At this point, as long as the amount of tin fed is reduced or long pins are left, it can be solved.

Welding problem: Welding generally refers to the phenomenon of several adjacent points bridging together during the soldering process. The reason for this phenomenon is either due to excessive tin feeding or a small gap between two points. Solution: In this situation, the tin amount should be reduced first, and then the position of the soldering iron head should be checked to see if it is correct. If it is not correct, it should be adjusted in a timely manner. In addition, the size of the soldering iron head should also be checked to see if it is correct. If it is not correct, it should be adjusted in a timely manner. 4. During the soldering process, sometimes the tin wire may get stuck in the automatic soldering machine. Due to the welding temperature being set too low, the tin feeding speed is too fast, and the tin feeding needle is too close to the soldering iron head, causing the tin wire at the front end of the soldering iron head to not melt in time, which can easily cause the tin wire to get stuck. Solution: Adjust the position of the tin feeding needle to keep the distance between the tin wire and the soldering iron head, adjust the tin feeding speed in the machine parameters, and adjust the temperature setting.