What are the precautions and techniques for using the soldering iron? Why can maintenance personnel repair the machine without the circuit diagram? And some maintenance staffs can judge the fault problem only by the appearance of the components? Therefore, it is very important for friends who are first contacted with maintenance to understand the circuit diagram when repairing the motherboard. Next, I will give you a detailed introduction to the problems and precautions in the soldering process of the electric soldering iron , hoping to improve your maintenance technical ability. Problems in welding: 1. Excessive force; 2. The temperature is too high; 3. Unsuitable soldering iron tip; 4. Transfer welding; 5. Improper use of flux solder paste; 6. Improper maintenance of the soldering iron tip and no tinning. Welding strength: 1. The function of the electric soldering iron is to melt the solder and solder the parts together; 2. Excessive force will cause the chip pins to be broken. The
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