Hello friends, how is rosin used when soldering?
This is a very basic question when soldering, but someone asked me how to use it
Nowadays we rarely use rosin alone when soldering
Solder wire with rosin core is usually used,since the rosin of this solder wire is used as a flux, it is easy to solder.
But when we solder, we always hang the solder on the tip of the soldering iron, and then touch the solder joint,because the rosin on the iron tip has evaporated at high temperature.
Without the role of flux, solder cannot be tinned or cold welding may occur.at this time, you can dip the soldering iron tip into the rosin and quickly apply it to the solder joint,this makes it easy to solder.
When soldering the wires, you can first heat the wires in rosin,then tin the soldering iron tip and you can solder the wires.
If it's on a circuit board,Can put rosin powder on the solder joint
Another method is to dissolve rosin in alcohol.

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