Nine common problems with soldering irons
1. If the temperature is too high, the tin surface of the soldering iron tip may be violently oxidized.
2. Do not tin dip the tin surface before use.
3. Use incorrect or defective cleaning methods.
4. Use impure solder or the flux in the soldering wire is interrupted.
5. When the working temperature exceeds 350°C and the welding is stopped for more than 1 hour, the amount of tin on the lead-free soldering iron tip is too small.
6. "Dry burning" the soldering iron tip. For example, if the soldering station is left open and not used, and there is no tin on the surface of the soldering iron tip, it will cause rapid oxidation of the soldering iron tip.
7. The flux used is highly corrosive, causing rapid oxidation of the soldering iron tip;
8. Use neutral active flux and do not frequently clean the oxide on the soldering iron tip.
9. Contact with organic matter such as plastic, lubricating oil or other compounds. Commonly used methods:
Use a knife to scrape off the oxide layer of the soldering iron tip to expose the copper that has not been oxidized by air. Then, put it in the rosin box and dip it in tin, and you can use it normally. However, the removal by this method is not complete. At the same time, if it is scraped off for a long time, the soldering iron tip will become thinner, which will affect the heat transfer, cause the temperature to drop, and even damage the soldering iron tip.
A quick and efficient way to do this is:
Hold the wooden handle of the electric soldering iron, immerse the oxidized soldering iron tip into a container filled with alcohol, and take it out after 1 to 2 minutes. The oxides will be completely and cleanly removed, and the soldering iron tip will look brand new. This is because when copper oxide and alcohol are heated, a chemical reaction occurs and the copper is reduced, which has no corrosive effect on the soldering iron tip.
