Why does the soldering iron use rosin?
Rosin is the most commonly used flux. It is neutral and will not corrode circuit components and soldering iron tips. This allows the tin droplets to quickly stick to the circuit board during welding, and the rest is just waiting for the tin droplets to cool. In this way, the quality of the welded product is guaranteed.
First of all, when the tin droplets are in a liquid state, the solder joints are very full, because the fluidity of the liquid tin droplets is not very good and will basically stay next to the electronic pins. When it solidifies, it will not change much.
The function of rosin also includes clearing the oxides on the metal surface and assisting the diffusion of tin.
In terms of solder joints, it can connect parts without mechanical support; coordinate heat dissipation; and conduct electricity. Therefore, from these aspects, rosin is very helpful for common welding requirements.
The main function is to assist soldering. The usage is: 1. Dip the hot soldering iron into solder. 2. Dip the hot soldering iron into rosin. 3. Use the soldering iron with rosin and solder to solder.
The biggest benefit of rosin is: tin the wires, because it is difficult to tin the wires without rosin. First heat the soldering iron, then put the soldering iron in the rosin, take out the soldering iron, dip it in tin, and then put it in rosin, and then put the wires to be tinned in, so that tinning is much easier. Another function is to put the newly purchased soldering iron into the rosin, and then apply tin. The entire soldering iron head will be covered with tin. After using the soldering iron in the future, it will be filled with tin. The next time you use the soldering iron, it will not be filled with tin. The soldering iron tip is oxidized and becomes unusable.
