The grip of the soldering iron
There are basically two ways to hold an electric soldering iron. One is to grasp the handle with a full hand and hold it firmly. This is the method for beginners, which can be handy; the other is to hold the head down, like holding a pen. Veteran qualifications are held in this way, and the virtual grip operation is fast and efficient, especially when installing and disassembling small components. Of course, there are other ways of holding the design documents on the production line.
Use of electric soldering iron
Before using a new soldering iron, polish the tip of the soldering iron with fine sandpaper, heat it up with electricity, dip it in rosin, and touch the solder wire with the blade of the tip of the soldering iron, so that the tip of the soldering iron is evenly coated with a layer of tin. Doing so can facilitate soldering and prevent surface oxidation of the soldering iron tip. If the old soldering iron tip is severely oxidized and blackened, the surface oxide can be removed with steel foil to expose the metallic luster, and then re-tinned before use.
