Why tin won't stick to soldering iron and how to fix it

If the tin does not stick to the soldering iron, we immediately begin to blame the soldering iron, thinking that it is broken or simply not of high quality, but in most cases it has nothing to do with it. Often the problem comes from a poor choice of solder - it may only be for high temperatures, it may not be tinned, or you are simply not working properly.

The soldering iron should not be left in the network for a long time, because it heats up very much, the strand begins to oxidize, and the flux burns out very quickly. In this case, a thick layer of soot will form very quickly at the tip of the sting, and the tin simply will not stick.

I will give some tips on how to use a soldering iron. They must be taken into account by beginners, and even experienced users will not be superfluous to remember:

1. The tip of the soldering iron must be in rosin so that it does not burn out;
2. After you finish working with the soldering iron, the tip should be wiped on any wooden surface. This will help eliminate soot and traces of flux;
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3. Do not overheat the soldering iron. If you will not use the soldering iron for several minutes, it is better to unplug it from the mains.

These three simple tips will help you avoid most of the difficulties. But what to do if the sting is already burnt and the tin practically does not stick. There is a way out here too - you just need to do the tinning of the sting correctly again.

How to do it?

During tinning, a thin layer of tin solder is applied to the tip. They also cover parts that need to be soldered in the future. It's not difficult and very fast. We act like this:

• To begin with, we clean the sting from soot with an emery or file. We do this carefully, without leaving bumps on the sting. It should be smooth.
• Then cover the sting with rosin. If you use rosin in solid form, then the sting should be heated directly in rosin, without waiting for the melting process. If the rosin is in liquid form, then it must be applied with a brush.
• When the rosin melts, touch the soldering iron to the tin solder. If everything is done correctly, then the tin will begin to melt instantly. We rub the solder on the tree, and it's in the bag.

Follow these simple tips, and soldering will go like clockwork, and the soldering iron will work for a long time and without errors.