The soldering iron is insoluble and does not stick to tin
The electric soldering iron is an essential tool for electronics enthusiasts and practitioners. The new electric soldering iron will have a protective layer on the tip to protect the tip from oxidation. It is easy to tin the electric soldering iron at this time, but some improper operations, such as continuous heating, use of acidic flux, and no soldering when not in use, will cause the tip of the soldering iron to oxidize in advance, and there will be problems that the soldering iron cannot be tinned.
Ordinary soldering iron
Some ordinary electric soldering irons do not use copper or alloy soldering iron tips because they do not have the function of constant temperature and temperature adjustment, and because of their low price. After the power is turned on, the soldering iron is in a continuous heating state, and the tip of the soldering iron is easily oxidized, and some electric soldering irons even have the phenomenon that the tip of the soldering iron turns red.
Solution:
You need to polish the soldering iron tip with a file or sandpaper to remove the oxide layer on the surface of the soldering iron tip, then enter it into the rosin, turn it back and forth a few times, and add solder. If the tip of the soldering iron still cannot be tinned normally after this method, it is necessary to replace the tip with a new one. Choose a suitable tip according to the type and power of the soldering iron.
Like some thermostatic and temperature-adjustable soldering irons, such as the very commonly used 936 model soldering station. Because of its own temperature adjustment function and constant temperature function, the soldering iron tip is made of alloy soldering iron tip, which is not easy to be oxidized and can work stably at the set temperature. And this kind of electric soldering iron not only heats up very fast, some also have the function of automatic shutdown for a long time without use, which greatly reduces the oxidation of the soldering iron tip. Therefore, it is recommended to use this electric soldering iron, which is more convenient.
Precautions for using soldering iron:
When the soldering iron is not in use, be sure to turn off the power in time or add solder to the tip of the soldering iron to prevent oxidation of the tip. Do not use acidic flux, which can easily cause oxidation of the tip of the soldering iron. A flux mixed with rosin and alcohol can be used to assist soldering during soldering. In terms of solder selection, some better solder should be selected.
