What to do if the soldering iron head does not hang tin, three ways to deal with it
When soldering components with an electric soldering iron, sometimes the soldering iron tip does not stick to the tin, and the problem of the soldering iron not hanging tin is mainly divided into the following categories:
1. After long-term use, the surface of the soldering iron tip will be oxidized, and a layer of copper oxide will be formed on the surface, so it is easy not to hang tin. During the lead-free soldering process of the soldering iron tip, sometimes the soldering iron tip does not stick to tin.
2. When the temperature is too high, it is easy to cause severe oxidation on the tin surface of the soldering iron tip.
3. "Dry burning" the soldering iron tip will also lead to the problem that the soldering iron tip does not hang tin.
4. The flux used is highly corrosive, causing rapid oxidation of the soldering iron tip.
5. Use neutral active flux, and do not frequently clean the oxides on the tip of the soldering iron.
Soldering iron non-stick tin treatment method
Method 1: Hang off the oxide layer on the surface of the soldering iron tip with a knife, and then dip some rosin to solve it. However, this method does not remove thoroughly, and the tip of the soldering iron will be damaged after a long time, resulting in poor heat transfer performance of the soldering iron.
Method 2: Dip the oxidized soldering iron tip into a container filled with alcohol, take it out after about 1 to 2 minutes, the oxide is completely removed, and the soldering iron tip looks brand new. The reason is that after copper oxide and alcohol are heated, a chemical reaction will occur, and copper will be reduced, which will not corrode the tip of the electric soldering iron.
Method 3: Correctly use and maintain the tool according to maintenance specifications, and use it at a low temperature as much as possible to reduce its oxidation rate and prolong its service life. Do not press hard, as long as the contact is good, the heat will be transferred normally.
