How to Use an Electric Soldering Iron for Proper Soldering
Welding technology is a fundamental skill that DIY enthusiasts must master, and it requires extensive practice to become proficient. Polish the solder pads and pins of the components clean with fine sandpaper and apply soldering flux. Dip an appropriate amount of solder with a soldering iron tip, touch the solder joint, and wait for all the solder on the solder joint to melt and submerge the component lead. Then, gently lift the soldering iron tip up along the pins of the component and leave the solder joint. Today we will talk about how to use an electric soldering iron correctly for soldering.
The use of soldering iron can be divided into several situations:
1. Solder the components onto the circuit board (or remove them)
2. Solder the wire onto the circuit board
3. Welding between wires is most common in some electrical appliances, such as fans.
Here we also need to mention that when you receive the components, don't rush to solder them with an electric soldering iron.
The pins and wire ends of the components, as well as the circuit board itself, should be processed first, just like using 501. If you don't clean and smooth the bonding surface, you will definitely curse "buying counterfeit goods". Although there are many counterfeit goods nowadays, sometimes it's just that you haven't used them well.
However, in terms of components (I mean when installing new components), we should thank modern technology. Modern technology has done a great job in surface treatment, so many times, we don't need to do any treatment on the components. For example, I basically don't dry them anymore, but at the beginning, I carefully wiped them with an eraser, applied a layer of tin, and wiped them with rosin alcohol solution
Nowadays, there's basically no need to do this. Sometimes, just be a little careful and use your fingers to wipe it off.
But if it is an old component removed from the circuit board, it is best to deal with it. Use an electric soldering iron to remove the old tin, or heat it up to smooth out the pins. If you don't do this, you may never be able to insert it into the circuit board again.
The line is not that simple.
There are many types of wires, and no one knows which one you will encounter. Some wires are annoying and difficult to solder, so if you just solder them, you will be in tears.
So the thread ends need to be handled properly.
The solution is that if there is already old tin, such as soldering it off a board, it is actually the best thing to do. Just heat it up with a soldering iron tip or add some new tin, and everything will be fine. However, if it is a newly peeled thread, it can be quite troublesome.
The newly peeled wire ends need to be twisted into a strand first, and then tin plated. Tin plating now is definitely better than waiting for you to be flustered on the circuit board. Of course, tin plating is not so easy. If you don't believe me, give it a try! There is actually a way. There are many ways to operate it, but the basic principle is still: first, dip the soldering iron in rosin, then add some new tin to the soldering iron tip, then place the tin wire between the soldering iron tip and the wire tip, let the tin melt and adhere to the wire tip, and then drag the wire tip or soldering iron tip, of course, there is also the tin wire. The purpose is only one, to evenly spread the tin on the wire head. Here, it is important to note that the tin should not be spread too long. It should be spread to a distance of one or two millimeters from the place where the insulation jacket is located. At this point, if you place it on the board for soldering, you will feel really relaxed!
