What fixes can be made to prevent the soldering iron's tip tin from slipping off?
1. The tin still cannot be joined to the circuit board since the connection between the circuit board and the mouse cable broke due to excessive plugging and unplugging. It requires a substantial tin bead to be on the circuit board, so it is joined to the solder junction there. The extra tin can be taken out and soldered again if it is not burned out.
2. Use the tin suction equipment to remove extra solder. The soldering iron's temperature shouldn't be too high. Use rosin and flux if soldering is difficult.
3. The solder pad is oxidized, scrape it with a knife, then clean it with alcohol, and try soldering again. The solder with rosin in the middle of the solder will be on the solder in seconds. This kind of ordinary solder is really difficult to solder and requires high temperature to melt easily. The tip of the soldering iron can be sharpened and put on the hot spot for a while to make the tin spot smaller.
4. The temperature is not enough, put the tip of the soldering iron for a long time, do not use rosin, use the tip of the tin, the tip of the soldering iron must first heat the copper plate on the board, otherwise it will not go up
6. Rosin, or flux, is used during welding to assist clean the metal surface and isolate the air, but if it is left on for a short while longer, impurities will build that will make welding more difficult.
