1. The tin surface of the soldering iron tip is susceptible to severe oxidation at high temperatures.
2. Avoid eating tin that has been dipped before use.
3. Employ improper or substandard cleaning techniques.
4. Interrupting the use of impure solder or flux in the wire.
5. The amount of tin on the lead-free soldering iron tip is insufficient when the operating temperature surpasses 350°C and soldering is halted for more than an hour.
6. "Dry-burning" the electric soldering iron head, which can occur when the soldering station is not in
7. The flux used is highly corrosive, which causes rapid oxidation of the electric soldering iron tip;
8. Use neutral active flux, do not often clean the oxide on the tip of the soldering iron
9. Coming into contact with organic materials like plastics, lubricants, or other chemicals
