Method: At present SMT in the cleaning of steel mesh are mainly pneumatic steel mesh washing machine and ultrasonic steel mesh cleaning machine (SMT steel mesh clean paper)
Refer to IPC-7526 for details of the regulations, where special precautions need to be taken into account, and the following are more difficult to control to the appropriate range:
1) temperature, with the cleaning time and the initial temperature of different temperatures and different, and too high temperature is easy to damage the steel mesh;
2) ultrasonic power density, excessive damage to steel mesh;
3) easy to damage the tension and adhesive, although IPC is not disabled, but due to the strong penetration of ultrasound and difficult to control, easily lead to;
4) also need Solvent, because electricity, there is danger of lit;
5) because the cleaning is in a slot, cleaning under the stolen goods have not been filtered, affecting the cleaning effect. If the cycle of filtration, filtration is too large to absorb energy, affecting the cleaning effect;
6) need a separate cleaning tank, Rinse, dry slot, the body is more complex. SMT special splice tape