Abstract: Electric soldering iron is an indispensable tool for electronic production and electrical maintenance. Its main purpose is to weld components and wires. According to the mechanical structure, it can be divided into internal heating type electric iron and external heating type electric iron. According to the function, it can be divided into welding electric soldering iron. And electric soldering iron for soldering, according to different purposes, it is divided into high-power electric soldering iron and low-power electric soldering iron. So how do you tin the tip? The following small series for everyone to introduce.
How to give tin on the soldering iron?
Soldering iron on tin
1. There must be tin on the soldering iron head, which can prevent the soldering iron from oxidizing; the soldering iron tip is covered with carbonized flux, and the soldering iron can not dissolve the tin to transfer enough heat to the solder joint.
2, the temperature of the tip is too high, it will oxidize, can not get tin, the good tin will be black. When the tin is applied, the oxide layer of the soldering iron tip is removed, and the red color of the copper appears to be tinned.
3. The flux is highly corrosive, causing rapid oxidation of the tip; using a neutral active flux;
4, to use a good quality soldering iron tip tin slow (if there is no oxidation) is not enough temperature soldering iron head does not tin can account for some rosin or flux and then tin on the oxidation if the use of a knife or fine sandpaper to remove oxides, soldering iron The head is oxidized. It is good to use a trowel to remove the black oxide layer and re-apply the tin. However, pay attention to the maintenance of the soldering iron during use, otherwise the soldering iron will oxidize again.
5, the electric iron is fully cooled! Use a fine sandpaper to slowly polish the tip, polish it until the tip is not black, plug it in, plug the tip into the rosin, wait until the temperature is up, pay attention! From the time you plug in the electricity, you can always melt it in the rosin! When the temperature is over, dissolve the tin on the tip until the tip is full of tin.
6, generally mild oxidation first insert the soldering iron into the solder paste, and then wipe with a damp sponge, then hang tin.
7. Hold the electric iron handle and immerse the oxidized copper head in a container filled with alcohol. After 1 to 2 minutes, the oxide is completely and cleanly removed, and the copper head is completely new. This is because when copper oxide and alcohol are heated, a chemical reaction occurs, and copper is reduced, which has no corrosive effect on the soldering iron tip.
8, usually the temperature of the soldering iron should not be too high, generally do not exceed 350 degrees, in the case of high temperature is more likely to produce oxidation, so you should try to reduce the temperature of the tip. Keep the tip clean and often clean the oxide on the tip. 
Editor in charge: Zhao Hongli
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