How to properly use the soldering iron and maintain the soldering iron?

1. Pay attention to the temperature of the soldering iron when using it, avoid working for a long time, or dry burning, easy to burn the heating core
2. After use or for a long time, be sure to plate a layer of tin on it to protect the soldering iron from oxidation.
3, tin is easy to oxidize at high temperature, oxidized looks like a matte feeling is not strong, not polished that is very bright, this time is very easy to spike, so the welding action after tinning is fast, or use Low-power soldering iron, do not let tin be at high temperature for a long time , generally higher integration of the circuit, it is recommended that the power is smaller, otherwise it is easy to burn other components, 30w power is enough.
4, if tin oxidation is very difficult to solder, put a little rosin or flux just fine, and instantly reduced to non-oxidized tin, I will say that I realized for a long time to find such a simple fact? ╮(╯▽╰)╭.
5, personal contact, rosin welding is better, does not corrode soldering iron and components, flux and the like will corrode electric soldering iron and components (may also have good non-corrosive, but I have not used, in the current market, Can't just rely on the instructions to believe it? I don't want to take my soldering iron to test %>_<%......)