How to use a soldering iron and key tips
Soldering iron as electronic engineers most commonly used soldering tool, with a good soldering iron will save a lot of time for our work. This article will be through the preparatory work, pre-soldering treatment, soldering technology on the use of soldering iron to explain in detail, of course, there are very key soldering skills.
Preparation
1. Before the use of new soldering iron, the application of fine sandpaper will be bright soldering iron head, electrified hot, dipped in rosin with a soldering iron head edge contact with the solder wire, so that the soldering iron head evenly coated with a layer of tin. This can facilitate welding and prevent the surface of the soldering iron head oxidation. If the old iron head is seriously oxidized and blackened, can be used to remove the surface layer of oxidation steel frustration, so that it reveals the metal luster, re-plated with tin, can be used.
Soldering iron to use 220V AC power supply, the use of special attention to safety. The following points should be carefully done:
Soldering iron plug is best to use three-pole plug. Make the shell properly grounded.
Before use, the power plug, power cord should be carefully checked for damage. And check whether the soldering iron head is loose.
In the use of the soldering iron, it should not be knocked hard. To prevent falling. When there is too much solder on the head of the soldering iron, it can be wiped off with a cloth. Do not fling it around to prevent burning others.
Soldering process, the soldering iron can not be placed everywhere. When not soldering, it should be placed on the soldering iron stand. Pay attention to the power cord can not ride on the iron head, in order to prevent scalding insulation and accidents.
After the use of the end, should be timely cut off the power supply, unplug the power plug. After cooling, then the soldering iron back to the tool box.
2、Solder and flux
Welding, but also need to solder and flux.
(1) solder: welding electronic components, generally used with rosin core of the solder wire. This wire, low melting point, and contains rosin flux, extremely convenient to use.
(2) Flux: Commonly used fluxes are rosin or rosin water (rosin dissolved in alcohol). The use of flux, can help remove the oxides on the surface of the metal, conducive to welding, but also to protect the soldering iron tip. Solder paste can also be used when soldering larger components or wires. But it has a certain corrosive, welding should be promptly removed after the residue.
3, auxiliary tools
In order to facilitate the welding operation often use sharp-nosed pliers, pliers, tweezers and knives, etc. as auxiliary tools. Should learn to use these tools correctly.
Sharp-nosed pliers, pliers, tweezers, knife
