How To Remove Solder Circuit Boards

How to remove solder from a circuit board hole.

How to remove solder circuit boards. Usually the clog is residual solder that occurs when an existing electronic component is desoldered and removed. The printed circuit board is held in a vise or pcb holder. 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. Heat up the solder you want to remove with a soldering iron some desoldering pumps also come with attached irons.

Removing solder from the circuit board can be a challenge. Press down on the plunger if your pump has a bulb just squeeze the bulb. The tip of the desoldering bulb is placed behind the hole and the bulb is squeezed. The tip of a heated soldering iron is pressed against the hole to melt the solder.

Release the plunger or bulb. A desoldering pump also called a solder sucker vacuums up melted solder to separate soldered components from a circuit board. You can also leave the solder there of course. Once the solder is molten place the tip of the desoldering pump against the solder that you want to remove.

The solder just won t melt making it really difficult to remove a component. I also like adding extra solder to some solder joints because the more solder. Pcb hole accidentally clogged during soldering. To remove gold from circuit boards start by purchasing concentrated nitric acid from an industrial or chemical store.

To remove excess solder from a hole. Unless the solder creates short circuits or structural problems you can heat the solder until it melts and then push your components through. There are several effective methods for removing solder from a pcb hole. You can also leave the solder there of course.

Excess solder filling a hole happens quite often. Add a bit of solder and you ll see for yourself how much of a difference it makes. The desoldering pump works best for through hole connections. The board has small joints that you need to connect it is why it is better to select a smaller solder.