I will interview the wave soldering technician tomorrow. I wonder what questions the other party (company) will ask? Can an experienced friend help me?

As long as the technician has comprehensive skills, he is still afraid of what he will take. .

Just say that I can put it back after the wave soldering is dismantled.

Not to mention that fake soldering of tin is too common.

Then there is the technological structure of the equipment. Of course I don't need to say this. Functions of each part of the process.

Technicians also need PLC control, each 24V relative control, familiar with the components of the circuit box, which relay tube is connected to what. For example, how the process from the front light eye to the cylinder action is produced.

When the PCB passes through the naked eye, the naked eye will send a signal of PCB length to PLC, and the gap has been programmed in PLC. When the clearance is completed, the PLC will send a 24V electric control command to the relay, and the relay will open the solenoid valve, which will drive the cylinder. Then the cylinder slider will sense the naked eye, and the left and right continuous signals will be sent to PLC, and then the relay will control the left and right airflow of the solenoid valve, and the solenoid valve will control the cylinder to move left and right through the left and right airflow to complete PCB width spraying.