First tin application method for electric soldering iron heads
When the electric heating reaches the point where tin can be melted, you can use sandpaper or a small knife with a size of 800 or above to remove the oxide layer on the tip of the soldering iron, and immediately apply rosin or solder paste before removing the tin. If the soldering iron head oxidizes and does not stick to tin, it can be done again using the same method as before.
First of all, I think you should have a high-quality electric soldering iron. Why? Because the surface of the soldering iron head of a high-quality electric soldering iron will have a metal coating to prevent oxidation. Generally speaking, with this metal coating, the soldering iron head will not be oxidized. Although the tin on the soldering iron head will be oxidized, it will not oxidize to the soldering iron head. If the soldering iron tip is not tin coated, simply wipe off the oxidized tin on a sponge soaked in water, as the soldering iron tip will not be oxidized, making it easy to tin.
Remember, never polish, otherwise the metal coating will be damaged and the soldering iron tip will be useless.
If the appeal method is not feasible, the second method is to ensure its effectiveness. When the electric soldering iron is not plugged in, use a file to file the soldering iron head until it is bright, and then wrap the soldering iron head with tin wire. Finally, plug in the electricity and wait for the tin wire to melt. This method has been the best I have felt for many years, it's a perfect solution.
Finally, it is important to ensure that there is always tin on the soldering iron head, especially when not in use, otherwise it will be difficult to apply tin after the tin has been oxidized.
New Luotie can be directly melted onto the Luotie head with soldering wire containing rosin, because the new Luotie head has undergone special treatment. If it cannot be tinned, it can also be used in conjunction with rosin. While heating Luotie, the Luotie head can be inserted into the rosin and the soldering wire can be melted, which can generally solve the problem.
If the Luotie head is an old Luotie head with severe oxidation on it, you can use an art knife or fine sandpaper to clean the oxidation on the Luotie head, then heat it to invade the rosin, and melt it onto the Luotie head with solder wire, because rosin has a cleaning effect and can assist in soldering the tin wire.
The temperature of the Luotie head should generally not be too high, as it can easily burn out the Luotie head.
