​General electric welding head injuries mainly have two: 1. The soldering corrosion; 2. Clean (high and low temperature) to reduce the service life. Welding head cleaning methods are:

Used electric mosquito-repellent incense film or cotton cloth to wipe, good welding head with a wet rag wipe with respect to OK. Poor quality to shave the copper chloride, or zinc chloride. Again on the tin.

Soldering iron cotton faults: to add water drain, easy oxidation of soldering iron at high temperature condition under water to reduce welding head cleaning wipes the one-sided tin run temperature to produce temperature difference on the other side, and clean too clean, directly on the surface of the welding head tin oxide layer.

Prepare a wet towel or welding, the non-stick tin on the towel to wipe.

Dedicated clean cotton cleaning not, consider the soldering iron using habit, the temperature is too high, some people like iron welding fast at high temperature, however, the temperature is too high to head burned to death, also easy to PCB copper foil become warped, also easy to damage the device.

And the flux composition volatilizes quickly in the tin wire, welding again add tin is not yet complete. Again about the soldering iron is not used temporarily, head should be hung tin, prevent head directly contact oxidation with air. Leave don't period is not, only close.

Made of pure copper wire made of very thin flakes of a roll of a roll and superimposed together, welding head in the chip will scrape the soldering iron head of tin slag and stuff! Copper wire advantages:

Don't need to add water to wire a plug, a comprehensive cleaning, will not reduce the temperature, not easy oxidation, inserted on the tin tin layer on layer remain more than protect can be repeatedly used, can be inserted in each direction, use for a long time to pull a pull shake off solder slag continue to use! Can completely replace the iron sponge! To use it must be pure copper, because of the pure copper is one of the most easily on the tin material, soft and do not have harm to the welding head, steel wire ball material is very hard, will only scratch welding head, also won't stick tin, to verify the difference between try take the welding head.

Can scrape copper, alloy leader can scrape, premise is that the whole is made of alloy, if not a compound, alloy blade scraped off the basic waste. Good won't wear welding head by hand. Sometimes burned plastic above is to the knife, but you have to click, click again.

Generally burn when rosin was blackened with clean cotton is pretty good, a wipe glossy. Rosin burned the leader can only use a sandpaper add + solder gently grinding. Especially hot plastic is not immediately clear, and high temperature burning, very bad.

Use on tin solder paste is easy, but easy to corrosion leader, occasionally with a little problem. Sand paper is suitable for the external heated copper solid welding head, the general internal welding head with sand paper scrap, when welding head completely burned tin, can be used more than 5000 mesh sandpaper.