1. The handling of the new soldering iron before use. A new soldering iron cannot be used right away. The soldering iron tip must be treated before it can be used normally, that is to say, the soldering iron tip should be plated with a layer of solder before use. The specific method is: first, use a file to file the tip of the soldering iron into a certain shape as required, and then connect the power supply. When the temperature of the soldering iron tip rises to be able to melt tin, apply rosin on the tip of the soldering iron, and then apply the rosin after smoking. The upper layer of solder, do this for two to three times, so that an oxide layer will be formed on the blade surface of the soldering iron tip and around it, which will cause the phenomenon of "eating tin" difficult. At this time, the oxide layer can be removed and re-plated solder.
2. Adjustment of the length of the soldering iron tip. When soldering integrated circuits and transistors, the temperature of the soldering iron tip should not be too high, and the time should not be too long. At this time, the length of the soldering iron tip inserted on the soldering iron core can be adjusted appropriately, thereby controlling the temperature of the soldering iron tip.
3. There are two types of soldering iron tips: straight and elbow. When using the pen-holding method, the electric soldering iron with a straight soldering iron tip is more flexible to use. Suitable for soldering in circuits with many components. The electric soldering iron with a bent tip is more suitable for the positive grip method, and it is mostly used for soldering when the circuit board is vertical to the desktop.
4. The electric soldering iron is not easy to be energized and not used for a long time, because it is easy to accelerate the oxidation of the electric soldering iron core and burn out, and at the same time, the soldering iron tip will be oxidized due to prolonged heating, or even burned to death.
5. Pay attention when replacing the soldering iron core | Do not connect the wrong wires, because the electric soldering iron has three terminals, one of which is grounded, and the other two are connected to the two leads of the soldering iron core (these two terminals pass through the power cord, Directly connected with 220V AC power supply). If the 220V AC power cord is wrongly connected to the terminal of the ground wire, the shell of the electric iron will be charged, and the welded parts will also be charged, so that an electric shock accident will occur.
When soldering an electric soldering iron, it is best to use rosin flux to protect the soldering iron tip from being corroded. The soldering iron should be placed on the soldering iron stand.
