type

1. Chlorinated solvent plate washing water; It is made by mixing chlorinated solvents with other solvents; It has the characteristics of fast dissolution of rosin and removal of flux, no residue after cleaning, easy volatilization, and no need for drying. Like Yuman Industrial Environmental Protection Plate Washing Water FRB-1.1.

2. Carbon hydrogen solvent plate washing water; With the widespread use of hydrocarbon cleaning agents, hydrocarbon solvents are also used for cleaning PCB circuit boards; There are fast drying and slow drying types of hydrocarbon solvent washing water for plates; The quick drying cleaning effect is generally better. Carbon hydrogen solvent cleaning water is environmentally friendly, non-toxic, has a small odor, and can be distilled and recycled. It is mostly used for cleaning high-end precision PCB circuit boards, such as carbon hydrogen solvent cleaning water FRB-143.

3. Water based board washing water; Due to the environmentally friendly, safe, non-toxic, and non irritating gas volatilization characteristics of water-based cleaning agents, the author found that water-based board cleaning water has also been released on the market recently. However, since circuit boards all have metal component pins, if water-based board cleaning water does not have rust prevention function, it should be used with caution because water-based cleaning agents can accelerate the corrosion and rusting of pins.

usage method

1. Manual brushing method: Dip the circuit board in some solvent for a moment and then brush the circuit board with a brush to accelerate the dissolution of rosin and the detachment of flux.

2. Ultrasonic cleaning: Generally, the circuit board is placed in a fixture to prevent damage to electronic components caused by ultrasonic vibration, and then placed in an ultrasonic cleaning tank; Determine the frequency of ultrasonic waves and cleaning time.