Method for reducing the oxidation speed of soldering iron tip and soldering iron core of electric soldering iron
1. Test resistance size
Before using the soldering iron, measure the resistance of the power plug to determine whether the soldering iron is available.
The resistance of the electric soldering iron is several thousand ohms, which means it can be used. If the resistance is zero or infinite, it will not work. If the resistance is zero, it means that there is a short circuit inside the soldering iron, and if the resistance is infinite, it means that there is an open circuit inside the soldering iron.
2. Tin plating protection
When using a new soldering iron for the first time, make sure that the tip of the soldering iron is bright, heat the solder and dip it in rosin at the same time, touch the solder wire several times, and evenly coat the tip of the soldering iron with a layer of solder. It is not only convenient for subsequent use, but also prevents the oxidation of the tip of the soldering iron.
The old electric soldering iron has been used for a long time, and there will be a layer of oxide on the surface of the soldering iron tip, which makes the soldering iron tip not easy to eat tin.
The oxide on the surface of the soldering iron tip can be removed with fine sandpaper or a file to make the surface bright. Then, according to the treatment method of a new electric soldering iron, evenly coat the surface of the soldering iron tip with a layer of solder.
3. Soldering iron does not eat tin
When the soldering iron does not eat tin, it is generally not necessary to consider whether it is caused by insufficient oxygen. Oxygen has nothing to do with the heating of the soldering iron. The soldering iron heats and melts the solder wire through alternating current.
Soldering irons do not eat tin, because the soldering iron is energized for too long without using it, which will accelerate the oxidation of the soldering iron core and burn it, shortening its service life. At the same time, it will cause the tip of the soldering iron to be oxidized or burned to death by heating for a long time.
This has led to the problem that the electric soldering iron does not eat tin. In the process of not eating tin, an oxidation reaction occurs, and a chemical reaction occurs between the substance and oxygen, and oxygen provides oxygen.
When the power-on time is too long and the temperature rises sharply, the reaction conditions are provided for the oxidation reaction, and the oxidation speed of the soldering iron tip and the soldering iron core of the electric soldering iron will be accelerated.
