What to do if the soldering iron tip overheats? What are the solutions?
After the soldering iron is powered on, the temperature reaches over 250 degrees Celsius. It should be placed on the soldering iron stand when not in use. However, when not used for a long time, the power supply should be cut off to prevent the soldering iron tip from being "burned" (oxidized) by the high temperature. It is necessary to prevent the soldering iron from burning other components, especially the power cord. If the insulation layer is burned by the soldering iron without paying attention, it may easily cause a safety accident. As a result, the soldering iron tip was burned black and burned off.
Solution to soldering iron tip overheating:
1. Cut off the power to cool down
2. Insert the hot and temporarily unused soldering iron into the metal soldering iron stand, and use heat transfer and large-area heat dissipation to cool down the soldering iron. When using, take the soldering iron out of the soldering iron stand. At this time, the soldering iron will quickly rise to a temperature that can be soldered without the heat dissipation of the soldering iron stand.
3. Connect a parallel circuit consisting of a diode 1N4007 and a switch in series on the power cord of the soldering iron. When the soldering iron is not used for a long time, the switch can be turned off, so that the soldering iron can only receive half-cycle power supply and the temperature will not overheat; when the soldering iron is in use, close the switch so that the soldering iron can receive normal power supply and the temperature will rise. .
4. An ordinary electric soldering iron can be used to make a simple electric soldering iron stand. A micro switch is installed under the soldering iron stand. After the soldering iron is placed, a rectifier diode is connected in series to the power supply to reduce the temperature. After being picked up, it is heated at full voltage, which can also prevent electric shock. The soldering iron burned to death.
5. It is better to cool the soldering iron tip naturally. Forced cold water cooling will shorten the service life of the soldering iron tip.
If the electric soldering iron is energized for a long time, the temperature will be too high and the service life will be shortened. Moreover, the soldering iron head will be easily "burned", causing difficulty in "eating tin". The energy consumption of the constant temperature soldering station is relatively low, because when the adjusted temperature is reached, heating is no longer performed, and the corresponding energy consumption is lower. In other words, for the same welding effect, the soldering station uses less electricity. You can choose a constant temperature soldering station to solve the problem of overheating of the soldering iron tip.
