Before you solder a soldering iron, you need to find out what this procedure is and what it should be done for. The bottom line is that as a result of the ration, because of overheating, the tip of the soldering iron is oxidized and, accordingly, loses the ability to melt solder normally. Therefore, from time to time it is necessary to fool it, that is, to remove the oxidized film.
Scheme of the soldering iron.
To do this, you can use several methods, the general principle of which is as follows: using a file, sandpaper, a grinding stone or any other abrasive, clean the sting and rub it to a metallic luster, and then coat the working part with solder.
How to make a soldering iron tip?
All soldering irons, with the exception of the so-called soldering stations, which are wire solder from a tin tube with rosin, must be tinned. And first of all it concerns new tools in order to bring the sting into working condition and use it for soldering.
To make a soldering iron tip, it is necessary to attach abrasive material to its cut, it is most convenient to work with a small file (although each master produces his own favorite method over time) and sharpen it to shine, perfect smoothness, making sure that the cut is even. There are no clear requirements as to how to give a sting. The shape in the form of a slice is universal, but for soldering, for example, radio components, transistors, SMD parts, the cone-shaped form is more convenient, which is achieved by the accuracy and quality of the connections.
Forms sharpening the most common soldering tips of a unified series.
In addition to abrasive treatment, the sting can be forged. In this case, it is possible to achieve an increase in its service life due to the lower solubility in the solder. You should also pay attention to the fact that the soldering tip can be removable, secured with a screw. In this case, it is much easier to process it with a file, simply by removing it.
In order to solder a soldering iron, it must be plugged in and wait until it reaches its operating temperature. The hot sting should be lowered into the rosin prepared in advance, and then into tin solder. It is necessary to tune in that this procedure will have to be performed several times (on average, 3-5 times, but it all depends on the power of the soldering iron, the state of the tip, and its working part).
Taking a sting from the solder, it must be attached to the tree. For this, craftsmen acquire small planks (preferably from softwood because of resin, the presence of which in wood helps speed up the process, although it is allowed to use other boards, but not materials from sawdust such as chipboard). It is necessary to observe the sequence (first rosin, then solder on the board) until the cut of the sting acquires a uniform layer of solder of a brilliant silver color.
This is a kind of evidence that the soldering iron tip was able to be tinned correctly and efficiently. You can make a sting with the help of another soldering iron, but since it is rare for home craftsmen to have two tools at the same time, this method is rarely used.
Soldering iron design.
Often household soldering irons do not have high power, for example, from 25 to 65 W, and the power supply network cannot always provide a stable 220 V. Therefore, the sting may not heat up to its working temperature, which may not allow it to be charged. This will eloquently testify balls rolling out of the solder and aggressively not wanting to stick to the sting. The output in this case is the same: it is necessary to use a voltage regulator or a transformer with the possibility of increasing the voltage. Sometimes it is allowed to increase it to 230 V.Back to table of contents
How to prepare wires for bracing for soldering?
In order, for example, to solder copper wiring to another in a twist or to a tin made of brass, they will need to be tipped no less carefully than a sting. To do this, use the soldering iron tip, which, naturally, must be heated.
The sting warmed to the required temperature is dipped first into the rosin, then into the solder, afterwards onto the wire or tin, pressing it tightly and simultaneously rubbing it across the surface. This procedure should be carried out very quickly in order to prevent the rosin from being able to evaporate. It should be noted that this is a very painstaking work and this procedure will have to be done repeatedly, until an even layer of solder forms on the surface of the materials prepared for soldering.
Methods of twisting wires.
The time spent on tinning the surface is different for pure materials that have not yet had time to oxidize from parts with a decent layer of oxides. In this case, it is recommended to remove them first mechanically, for example, using a file or sandpaper. In particularly difficult cases, when it is impossible to tin the wire in any way, instead of rosin it is better to use a special chemical composition, solder paste or acid, which is mainly used for iron tinning.
Often solder is used in the form of solder wire. In this case, the soldering iron tip after rosin is quickly applied to the tinned surface, at the same time wire solder is placed at the point of their contact. The tip of the stinger must be rubbed on the edge of the solder. Thus, rosin and tin interact with each other, the contact point is enriched with this compound.Back to table of contents
How is the soldering of wires?
The tinned materials are completely ready for soldering, which will ensure reliable connection between them, for example, for the safe and unhindered movement of electric current (if the electric wires are twisted). Directly the soldering process is as follows:
Soldering the wires with a soldering iron will require rosin and solder.
- First, it is necessary to bring the soldering iron tip to the place of the connecting contact, which will envelop the tinned parts of the parts.
- Since the soldering process is provided by the presence of rosin, then, as a rule, in order to perform soldering, it is necessary to dip the soldering iron into it several times and then bring it to the junction.
- The soldering process should be completed at the moment when the tinned parts of the parts are completely soldered. At this point, carefully cleaned the sting so as not to move them.
- The place of soldering is considered frozen, after the gloss of the solder weakens somewhat.
In domestic conditions there is a need for soldering non-ferrous metals: copper, brass, tin, lead, gold or silver - they are all quite malleable in their work. It will be much harder to cope with steel, iron or zinc, primarily due to the fact that they are much worse to tinning. But aluminum and some other metals cannot be soldered using a household soldering iron.
But the soldering iron can be used not only to connect various metal parts, but also to separate them. In this case, the reverse process is performed, but for this, the soldering iron tip must also be tinned correctly. In order to unsolder, for example, wires in a twist, it is necessary to heat the junction. The sting should be dipped in rosin and brought to the solder until the latter is melted. After that, the parts are very easy to disconnect. In order to remove the remains of rosin from their surface, you can use a small brush to treat them with a solvent.Back to table of contents
To facilitate the process of soldering metal parts, you must adhere to some rules and follow the advice of masters.
The main thing - the workplace: it must be provided with a safe outlet. Necessary materials should be arranged in such a way that it was convenient to perform all the actions. You should also take care of normal lighting.
Half of the success of soldering depends on how to tinker a sting, so this action should be given enough attention.
Tin is mainly used as a solder for soldering.
But it is possible to significantly speed up and facilitate this process with the help of a solder paste or other chemical composition (flux), which can be purchased in specialized or hardware stores.
Using these tools, you can work not only with soft metals, but also with iron, steel or zinc. If the soldering iron is used regularly, then, in order for the sting to always be in working condition, you can remove it by gently tapping it with a hammer. For this it is necessary that the sting was removable. This allows you to make the soldering process more convenient and neat.