A method to reduce the oxidation rate of the soldering iron tip of an electric soldering iron
1. Test resistance size
Before using an electric soldering iron, measure the resistance of the power plug to determine if the iron is usable.
The resistance of an electric soldering iron is several thousand ohms, indicating availability. If the resistance is zero or infinite, it cannot be used. If the resistance is zero, it indicates a short circuit inside the soldering iron. If the resistance is infinite, it indicates an open circuit inside the soldering iron.
2. Perform tin plating protection
When using a new soldering iron for the first time, ensure that the soldering iron tip is bright, heat it up and melt the solder while dipping it in rosin. Contact the soldering wire multiple times and evenly coat the soldering iron tip with a layer of solder. It can facilitate subsequent use and prevent oxidation of the soldering iron tip.
The old electric soldering iron has been used for a long time, and there is a layer of oxide on the surface of the soldering iron head, which makes it difficult for the soldering iron head to eat tin.
The oxide on the surface of the soldering iron can be removed with fine sandpaper or a file to make the surface shiny. Then, according to the treatment method of the new electric soldering iron, evenly coat the surface of the soldering iron head with a layer of welding.
3. The problem of electric soldering iron not eating tin
When the problem of not eating tin occurs in an electric soldering iron, it is generally not necessary to consider whether it is caused by insufficient oxygen. Oxygen is not related to the heating of the electric soldering iron, and the electric soldering iron heats and melts the solder wire through alternating current.
An electric soldering iron does not eat tin because if it is not used for a long time, it will accelerate the oxidation of the soldering iron core and burn out, shortening its service life. At the same time, it can cause the soldering iron tip to oxidize or burn to death due to prolonged heating.
This has led to the problem of electric soldering irons not eating tin. During the process of not eating tin, an oxidation reaction occurs, and the substance undergoes a chemical reaction with oxygen, where oxygen provides oxygen.
When the power on time is too long and the temperature rises sharply, providing reaction conditions for the oxidation reaction will accelerate the oxidation rate of the soldering iron head and core.
