How To Remove Solder Circuit Boards

The desoldering pump works best for through hole connections.

How to remove solder circuit boards.

How to remove solder from a circuit board hole. There are several effective methods for removing solder from a pcb hole. Many times there isn t enough solder on a circuit board for the soldering iron tip to make contact with. The tip of a heated soldering iron is pressed against the hole to melt the solder.

Usually the clog is residual solder that occurs when an existing electronic component is desoldered and removed. Removing solder from the circuit board can be a challenge. In terms of size it is recommended to use a solder with a diameter not less than 0 75mm and not greater than 1 0mm for a printed circuit board. Pcb hole accidentally clogged during soldering.

The board has small joints that you need to connect it is why it is better to select a smaller solder. To remove excess solder from a hole. You can also leave the solder there of course. You ll also need a face mask safety glasses and industrial gloves to work with nitric acid since it can harm your skin and eyes and cause nausea if it s inhaled.

The solder just won t melt making it really difficult to remove a component. To remove gold from circuit boards start by purchasing concentrated nitric acid from an industrial or chemical store. Unless the solder creates short circuits or structural problems you can heat the solder until it melts and then push your components through. Release the plunger or bulb.

Add a bit of solder and you ll see for yourself how much of a difference it makes. The printed circuit board is held in a vise or pcb holder. Thoroughly examine both sides of the board to isolate the specific spots holding each component in place. I also like adding extra solder to some solder joints because the more solder.

Press down on the plunger if your pump has a bulb just squeeze the bulb. You can also leave the solder there of course. Excess solder filling a hole happens quite often. The tip of the desoldering bulb is placed behind the hole and the bulb is squeezed.