The reason for the black hair of the automatic soldering machine soldering iron
1. Leaded tin wire: Using leaded tin wire and lead-free soldering iron tip will shorten the life of the soldering iron tip, accelerate the oxidation of the soldering iron tip, and also cause black hair on the soldering iron.
2. During the soldering process, if there is too little flux in the tin wire, the surface oxidation rate of the soldering iron tip will be accelerated, especially the water-soluble flux is very corrosive at high temperature, and it will also damage the soldering iron tip;
3. The tin wire is impure or the tin content is too low;
4. If used for a long time, it will turn black even if no flux is used. The service life of the soldering iron tip is generally not high, and it will turn black after a long service life.
5. The black hair of the soldering iron is an oxidation reaction, which is directly related to the flux. Ordinary fluxes are acidic and will intensify oxidation.
6. Oxidation has a great relationship with temperature, the higher the temperature, the faster the oxidation. If the temperature is too high, especially when the temperature exceeds 400°C, it is very easy to oxidize the tin surface;
7. The reason for tin, tin is black after oxidation, the ancient copper mirrors have tin, copper, zinc and other components, it is to use these things to oxidize and use their oxides to polish the surface of the mirror to make it bright .
8. The sulfur content of the sponge used to clean the soldering iron tip is too high, too dry or too dirty, which will also affect the soldering iron tip; the soldering iron tip is exposed to such as plastic, lubricating oil or other chemicals, causing oxidation;
9. When using, the tin noodles are not all tinned.
