Common reasons why electric soldering irons do not stick to tin, and solutions to the problem of not sticking to tin
1. Choosing a temperature that is too high can easily cause severe oxidation on the tin surface of the soldering iron tip.
2. If the tin coated surface is not eaten before use, there may be a problem of non tin coating during use.
3. Using incorrect or defective cleaning methods.
4. Interruption of flux in the use of impure solder or wire.
5. When the working temperature exceeds 350 ℃ 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 tips, such as when the soldering table is open and not in use, and the surface of the soldering iron tip is free of tin, can cause rapid oxidation of the soldering iron tip.
7. The flux used has high corrosiveness, causing rapid oxidation of the soldering iron tip.
8. Using neutral active soldering flux without regularly cleaning the oxide on the soldering iron head.
9. Contact with organic substances such as plastics, lubricants, or other compounds.
Solution to the problem of non tin contamination
1. Conventional treatment method: Use a small knife to scrape off the oxide layer of the electric soldering iron head, exposing copper that has not been oxidized by air. Then, dip it in a rosin box and dip it in tin, then it can be used normally.
This method is not thoroughly cleaned, and if scraped for a long time, the soldering iron tip will become thinner, affecting heat transfer, causing a temperature drop, and even damaging the soldering iron tip.
2. Fast and efficient processing 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 removed, and the soldering iron tip is completely new.
This method causes chemical reaction between Copper(II) oxide and alcohol after heating, and reduces copper, and has no corrosive effect on electric soldering iron head.
