What are the preparations before welding an electric soldering iron
1. Tin plating
Before using a new soldering iron, it is necessary to polish the soldering iron head with fine sandpaper, heat it with electricity, dip it in rosin, and then contact the soldering wire with the edge of the soldering iron head to evenly coat the soldering iron head with a layer of tin to facilitate welding and prevent surface oxidation of the soldering iron head.
If the old soldering iron tip is severely oxidized and turns black, the surface oxide can be removed by steel filings to expose the metallic luster, and then tin plated again before use.
Electric soldering irons require a 220V AC power supply, and special attention should be paid to safety during use.
The following points are required:
(1) It is best to use a three pole plug for the soldering iron plug and ensure that the casing is properly grounded.
(2) Before use, carefully check the power plug and power cord for damage. And check if the soldering iron head is loose.
(3) During the use of electric soldering irons, do not use force to strike. To prevent falling. When there is too much solder on the soldering iron head, it can be wiped off with a cloth. Do not throw it randomly to prevent scalding others.
(4) During the welding process, the soldering iron should not be placed indiscriminately. When not welding, it should be placed on a soldering iron frame. Be careful not to place the power cord on the soldering iron head to prevent accidents caused by burning the insulation layer.
(5) After use, promptly cut off the power supply and unplug the power plug. After cooling, retrieve the soldering iron from the toolbox.
2. Prepare soldering tin and flux
When using an electric soldering iron for welding, it is also necessary to prepare soldering tin and flux.
(1) Soldering: Soldering electronic components, usually using solder wire with a rosin core. This type of soldering wire has a low melting point and contains rosin flux, making it extremely convenient to use.
(2) Flux: The commonly used flux is rosin or rosin perfume (dissolved in alcohol). The use of flux can help remove oxides from the metal surface, facilitate welding, and protect the soldering iron head. When welding larger components or wires, solder paste can also be used. But it has a certain degree of corrosiveness, and residues should be promptly removed after welding.
3. Prepare auxiliary tools
In order to facilitate welding operation, Needle-nose pliers, side cutters, tweezers and knives are often used as auxiliary tools, and the correct use of these tools should be mastered.
