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Jun 19, 2024

 

During the lead-free soldering process, there may sometimes be a phenomenon where the soldering iron tip does not adhere to tin. In addition to the quality issues of the soldering iron head itself, we can also identify the reasons for this type of situation from nine other aspects:


1. Choosing a temperature that is too high can easily cause severe oxidation on the tin surface of the soldering iron tip.


2. Do not eat tin on the tin coated surface before use.


3. Using incorrect or defective cleaning methods.


4. Interrupt the use of impure solder or flux in the solder wire.


5. When the working temperature exceeds 350 degree and welding is stopped for more than 1 hour, the amount of tin on the lead-free soldering iron head is too low.


6. "Dry burning" electric soldering iron tip, such as when the soldering table is not in use and there is no tin on the surface of the soldering iron tip, can cause rapid oxidation of the soldering iron tip.


7. The flux used is highly corrosive, causing rapid oxidation of the soldering iron tip;


8. Using neutral active flux without regularly cleaning the oxide on the soldering iron tip


9. Contact with organic substances such as plastics, lubricants, or other compounds. Common handling methods:




Grasp the wooden handle of the electric soldering iron, immerse the oxidized soldering iron tip into a container containing alcohol, and after 1-2 minutes, remove it. The oxide is completely and cleanly removed, and the soldering iron tip looks brand new. This is because after heating with copper oxide and alcohol, a chemical reaction occurs, which reduces copper and has no corrosive effect on the soldering iron tip.

 

Soldering Tips

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