How to clean PCBA residue solder balls

Publish Time: January 05,2019

During the PCBA welding and assembly process, it is affected by some uncontrollable factors. After PCBA soldering, there will be residual tin beads on the board. If there are too many tin beads remaining or the size of the tin beads is too large, you need to clean them. The PCBA residue tin beads must be cleaned manually Two methods of cleaning and machine cleaning.

1.Manual cleaning

Tools for manual cleaning include anti-static brushes, plate washer water, anti-static gloves and other tools. By applying special plate washer water and then cleaning with a brush, it can be used to clean tin beads, but it is not suitable for Some high-end products.

2. Machine cleaning

The tin beads on PCBA can also be cleaned by machines, such as ultrasonic cleaners, PCBA water cleaners, etc. The use of machines to clean thoroughly can effectively ensure the quality of PCBA boards.

The cleaning of the tin beads on the PCBA needs to be determined according to the type of components. Some are not suitable for cleaning by the machine. At this time, manual cleaning can be used.