Why can't copper wire hang tin?
The reason why copper wire cannot hang tin:1, the copper oxide layer is not clean.2 electric iron or tin furnace temperature is not enough.3 solder less.4 lack of solder.
1 copper oxide did not shave, 2 electric iron or tin furnace temperature is not enough, the 3 solder resist, insufficient solder 4
If you do paste solder, tin to a little slower, do not look at all because of invasion, the solder paste containing acid, can be used in soldering slowly into the solder temperature above the melting solder paste to remove the oxide copper head, but also can make the paste and close contact to head to prevent oxidation, and all of a sudden after the invasion, the outside thread to evaporate paste is not to remove the oxide film and prevent oxidation effect
