Circuit board cleaning technology introduction-

Circuit board cleaning technology introduction Release time: 2017-12-14 0 Everyone should be very familiar with circuit boards, but very few people know the circuit board cleaning technology. Let me introduce it to you. 1. Cleaning technology Agent cleaning mainly uses the solvent's solvency to remove contaminants. Using solvent for cleaning, because of its fast volatilization and strong dissolving ability, it has simple requirements for circuit boards. According to the selected cleaning agent, it can be divided into flammable cleaning agent and non-flammable cleaning agent. 2. No-clean flux or no-clean solder paste is used in the soldering process. After soldering, it will go directly to the next process and no longer be cleaned. No-clean technology is currently the most used alternative technology, especially for circuit board products. It uses a no-clean method to replace ODS. At present, many kinds of no-clean fluxes have been developed at home and abroad. 3. Washing technology Washing technology is the development direction of cleaning technology in the future, and it is necessary to set up pure water source and discharge water treatment workshop. It uses water as the cleaning medium, and adds surfactants, additives, corrosion inhibitors, chelating agents, etc. to the water to form a series of water-based cleaning agents. It can remove water solvents (flux is water-soluble) and non-polar contaminants.