PCBA circuit boards are used more often in China, and contaminants are generated during the manufacturing process of printed circuit boards, including residues of solder and adhesive, and other contaminants such as dust and debris from the manufacturing process. If the pcb board can not effectively ensure a clean surface, the resistance and leakage will lead to pcbA board failure, thus affecting the life of the product. Therefore, cleaning the pcbA board during the manufacturing process is an important step.

　　Semi-water cleaning mainly uses organic solvents and deionized water, plus a certain amount of active agents, additives composed of cleaning agents. This cleaning between solvent cleaning and water cleaning. These cleaners are organic solvents, flammable solvents, high flash point, low toxicity, safe to use, but must be rinsed with water, and then dried.

What are the tips for cleaning PCB circuit boards?

　　Water purification technology is the future direction of the development of cleaning technology, the establishment of pure water sources and discharge water treatment plant is necessary. Water as the cleaning medium, adding surfactants, additives, corrosion inhibitors and chelating agents in water to form a series of water-based cleaning agents. Can remove water solvents and non-polar contaminants.

　　Used in the soldering process without clean flux or without clean solder paste, solder directly into the next process cleaning, no longer free cleaning technology is currently the most commonly used as an alternative technology, especially for mobile communication products is basically a one-time use method to replace ODS. solvent cleaning is mainly used for solvent dissolution to remove contaminants. Solvent cleaning due to its fast evaporation, solubility and other characteristics, requiring simple equipment.

　　The above four cleaning techniques can achieve a certain cleaning effect, but how to quickly and effectively clean the pcb board? The application of ultrasonic cleaning machine can be solved. It uses ultra-high frequency in the liquid medium into the role of kinetic energy, cavitation effect, the formation of countless countless tiny bubbles, and then hit the surface of the object, so that the surface dirt off, so as to achieve the effect of cleaning. Because it is through the liquid, as long as the liquid can touch the surface of the surface can be cleaned in place, leaving no dead ends.

　　It can work on every surface of multiple objects at the same time. It is very effective and fast and can be cleaned in about 15 minutes. An advantage of using ultrasonic cleaning is that it can effectively restore, improve the ability of pads and components, and reduce electromagnetic interference.