Instructions on how to deal with the oxidation and blackening of the soldering iron tip without tin stick
The reason for the oxidation of the soldering iron is that the user did not maintain the soldering iron tip. To deal with the oxidized black soldering iron tip, first use a small knife to scrape off the black layer on the soldering iron tip until the copper color is yellow. Then add rosin and solder it. Remember to fill the front with solder when not using a soldering iron, this is called maintaining the soldering iron tip. There will be no oxidation or blackening.
Use a small knife or fine gauze to remove the surface oxide layer, then dip the soldering iron tip in rosin and coat it with solder. Note that if not in use for a long time, it is best to lower the temperature or directly turn off the soldering iron.
Replace the soldering iron tip with a better one, otherwise any effort will be in vain. If you tin it, it will oxidize and become non stick. When using it normally, first apply rosin.
Scrape with a knife to expose the white tip, dip it in some rosin, and then add solder. When not using a soldering iron, make sure to add solder to burn the tip, otherwise it will not stick to the solder.
When using an electric soldering iron in practice, pay attention to the following points
① Choose an electric soldering iron with the appropriate wattage, do not let the iron overheat, otherwise it will not only waste electrical energy but also accelerate the oxidation process and affect the soldering process
② Learn to observe and judge the temperature and fluidity of solder. When the soldering temperature is suitable, the surface will appear bright silver white and have good fluidity. If the surface turns blue quickly, it indicates that the temperature is too high and the wattage needs to be reduced or a constant temperature soldering iron needs to be used instead.
③ Prevent severe vibrations. Because the high-temperature resistant materials used to make soldering iron cores are made of ceramics or mica, they are prone to breakage and should be handled with care during use.
④ It is strictly prohibited to use acidic soldering flux when soldering electronic components to prevent corrosion and leakage. The best soldering flux is rosin. But when welding steel components, if there is difficulty in tinning, you can first use acidic soldering flux to do the tinning work, then carefully clean it, and finally use rosin to assist in welding completely.
