5 steps to getting the soldering process right with a soldering iron
The first step: prepare soldering materials
Soldering first we have to prepare the first soldering materials, such as soldering iron, solder wire, to be soldered boards, components and flux and other materials, the first time we have to be able to get a soldering iron and solder wire, usually the right hand to get a soldering iron left hand to get a solder wire, components loaded on the PCB, placed on the table and wait for the soldering. Note that the soldering iron heated for a period of time after the temperature is very high, do not touch with your hands, otherwise it may lead to burns.
Step 2: Heat the soldering components
After heating the soldering iron is best to put the soldering iron in the flux for a few moments, if you can add a little flux in the welding that's better, which facilitates us to weld, in the welding of integrated patches more experience, the need to add flux, the soldering iron into the flux does not have to be a very long time, about two seconds or so can be.
Step 3: add solder wire
To be added to the soldering iron to a certain temperature after we start welding, first of all, the first solder wire on the pins with welding components, and then let the soldering iron close to the solder wire, the soldering iron head on the solder wire for a few moments, with the solder melting solder can be the component pins surrounded by the soldering liquid, in the welding of the integrated chip, pay attention to soldering should not be added too much.
Step 4: remove the solder wire
After the melting of solder drops to be soldered components, our work is completed a large part of the next step is to wait for us to solidify the solder wire, so we do not need to put the solder wire on the band welding, we should be timely to move away from the solder welding in order to solidify the liquid tin.
Step 5: remove the soldering iron
Solder wire removed in order to weld more beautiful we can use the soldering iron in the original welding position to re-melt the tin liquid, to avoid the solder wire can not be fully melted leading to the phenomenon of false welding, in the actual operation of the soldering iron should not be placed on the head of the soldering iron for a long time to be welded at a long time to stay here if the soldering iron temperature is too high may lead to the pad off, which will lead to the scrap of the PCB board.
