Is the rosin clean after use?
In the new electric soldering iron bracket chassis, there is a small sponge like thing, that is used for the iron head "brush" the iron head cleaning block.Why use cleaning blocks? How to use cleaning blocks? Here's a brief talk.1. the necessity of using cleaning blocks:The iron head should be heated before each soldering, and the gap should be "empty hot", so that the surface of the solder on the soldering iron will be oxidized. In addition, residual fluxes such as rosin or petrolatum can also become carbon deposits and dirt that attach to the surface of the iron head. If they are not removed, they will be soldered into the solder during welding, resulting in a reduction in the mechanical strength, electrical contact properties, and finish of the welding, which directly affects the quality of the welding. To ensure the quality of welding only, clean the dirt with a clean block and then melt the solder.First, let clean blocks absorb enough water, squeeze some by hand, and keep about seventy percent moisture. With the handle of the iron handle, the heated iron head is wiped on the cleaning block two times. The upper layer is bright as new, the iron head is clean, and then the welding is carried out.If there are no cleaning blocks available, you can replace them with medium and high density sponges, or even fold them with napkins. Remember to soak it with water before use. Although the cleaning block is small, it plays an important role in welding quality.
Grind the metal surface with gauze until it is satisfactory
Usually, heat the soldering iron in the rosin or solder paste, even if the cleaning iron is finished
