What to do if the soldering iron tip is not tinned? Take a look at the three treatment methods
When repairing electronic circuits or welding components, the soldering iron is an important tool. The ability of each component to stand firmly on the printed circuit board is inseparable from the contribution of the soldering iron. Next, let's take a look at how to use the soldering iron tip without tin. deal with.
How to deal with soldering iron tip without tin
When soldering components with an electric soldering iron, sometimes the soldering iron head does not stick to the tin. The problems of the soldering iron not sticking to the tin are 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, making it easy for tin to be removed. During the lead-free soldering process of the soldering iron tip, sometimes the soldering iron tip does not stick to the tin.
2. When the temperature is too high, it is easy for the soldering iron tip to be violently oxidized.
3. "Dry burning" the soldering iron tip will also lead to the problem of no tin hanging on the soldering iron tip.
4. The flux used is highly corrosive and causes rapid oxidation of the soldering iron tip.
5. Use neutral active flux and do not frequently clean the oxide on the soldering iron tip.
How to prevent soldering iron from sticking to tin
Method 1: Use a knife to remove the oxide layer on the surface of the soldering iron tip, and then dip it in some rosin to solve the problem. However, if this method is not completely removed, it will damage the soldering iron tip over time, resulting in poor heat transfer performance of the soldering iron.
Method 2: Immerse the oxidized soldering iron tip into a container filled with alcohol. Take it out after about 1 to 2 minutes. The oxides will be completely removed and the soldering iron tip will look brand new. The reason is that when copper oxide and alcohol are heated, a chemical reaction will occur, reducing the copper and having no corrosive effect on the soldering iron tip.
Method 3: Use and maintain the tool correctly according to maintenance specifications, and use it at a low temperature as much as possible to reduce its oxidation rate and extend its service life. Don't press hard, as long as the contact is good, the heat will transfer normally.
