When repairing electrical devices, it is quite often necessary to connect wires using soldering. In order for the connection to be reliable, it is necessary to know the basics of soldering technology and have basic skills in working with a soldering iron. Even if you have not had experience of such work before, do not despair - mastery comes with experience.
It is necessary
Soldering iron, solder, rosin, file, wooden board, alcohol
Instructions
Step 1
Prepare the necessary tools for soldering the wires. You will need a soldering iron with a power of 40-60 W, designed for a voltage of 200 V. Also, stock up on solder and rosin. It is advisable to take a tin-lead solder (POS-61). Use liquid rosin for soldering wires in hard-to-reach places. To do this, grind a piece of rosin and fill it with an alcohol solution, and then shake until completely dissolved. The area in which you work must be well ventilated.
Step 2
Prepare the soldering iron for work. To do this, sharpen its sting with a file and tin. Dip the cleaned tip in rosin, then in solder and rub the tip of the soldering iron on a wooden plate. The tip of the soldering iron is coated with a thin layer of molten solder, after which the tool is ready for use.
Step 3
Strip the insulation from the wire to be soldered. This can be done with a knife; in this case, you must act carefully so as not to damage the wire cores. If the wire is stranded, twist the veins and tin, put on the rosin and heat them with a soldering iron. The solder will spread evenly over the surface of the wire.
Step 4
You can solder the wires by superimposing them on top of each other or by pre-twisting them. Treat the twisted wires with a soldering iron, after dipping the tip into rosin and solder. The connection is ready.
Step 5
Check the soldering point. Good quality soldering holds the wires together tightly, the ends of which have a smooth and shiny surface. If the soldering point is spherical, heat it up with a soldering iron until the solder melts and remove any excess. This will leave excess solder on the tip of the soldering iron.
Step 6
If the junction of the wires has a matte surface and appears to be scratched, they speak of "cold soldering". In this case, warm up the soldering point so that the solder melts, then let it cool without moving the wires to be connected.
