Analyze tips for cleaning PCB boards
PCB circuit boards are used in many countries and pollutants are generated in the manufacturing process of printed circuit boards, including contaminants such as dust and debris during the manufacturing process such as flux and adhesive residues. If the pcb board can not effectively guarantee the clean surface, the resistance and leakage will cause the pcb circuit board to fail, which will affect the service life of the product. Therefore, cleaning pcb circuit boards during the manufacturing process is an important step.
Semi-water cleaning mainly uses organic solvents and deionized water, plus a certain amount of active agent, additive cleaning agent. This cleaning is between solvent cleaning and water cleaning. These cleaners are organic solvents, flammable solvents, high flash point, low toxicity and safe to use but must be rinsed with water and then dried.
TheWater purification technology is the development direction of future clean technologies. It is necessary to establish pure water sources and discharge water treatment plants. With water as the cleaning medium, surfactants, auxiliaries, corrosion inhibitors, and chelating agents are added to the water to form a series of water-based cleaning agents. Water solvents and non-polar contaminants can be removed.
The It is used in the welding process without clean flux or clean solder paste. After soldering, it goes directly to the next process for cleaning. It is no longer free of charge cleaning technology is the most commonly used alternative technology, especially 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 requires fast equipment due to its high volatility and high solubility.
The above four cleaning technologies can achieve a certain cleaning effect, but how to quickly and effectively clean pcb board? The application of ultrasonic cleaning machines can be solved. It uses UHF to convert into kinetic energy in a liquid medium, generating cavitation effects, forming countless innumerable tiny bubbles, and then hitting the surface of the object to make dirt on the surface fall off, thereby achieving the cleaning effect. Because it is a liquid, as long as the liquid can contact 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. This is very effective and fast and can be cleaned for about 15 minutes. One advantage of using ultrasonic cleaning is that it can effectively reduce, improve the ability of pads and components, and reduce electromagnetic interference.
Shenzhen Sunsoar Tech Co.,Ltd is one of the professional PCBA manufacturers certified by the National High-tech. It draws on Foxconn's production management experience and combines the orders of foreign customers to help customers realize the trial production from sample to batch production. The station supply chain, which provides component procurement, program burning, PCBA testing, and housing assembly, helps customers save product development costs and shorten product development cycles. If you have problems with production and needs, you can contact firstname.lastname@example.org directly.