Among various cleaning methods, to clean PCB with dry ice cleaning should be the first choice .With the rapid development of the electronics industry, the performance requirements are gradually improving. The electronics industry is developing towards smaller and larger volumes, resulting in higher requirements for product accuracy. Therefore, cleaning PCB is an important step in the manufacturing process and plays an important role in improving the quality of circuit boards , to choose the appropriate method will result in twice the result with half the effort .
What is PCB ?
PCB stands for Printed Circuit Board, also known as Printed Board, which is one of the important components of the electronics industry. Almost every kind of electronic device, from small electronic watches and calculators to large computers, communication electronics equipment, and military weapon systems, as long as there are integrated circuits and other electronic components, in order to electrically interconnect the various components, printed circuit boards must be used. Printed circuit boards consist of an insulating substrate, connecting wires, and solder Pads, which are used to assemble and solder electronic components and have the dual functions of conducting wires and insulating substrates.
Rosin, which is a natural resin extracted from pine trees, is important in the production of circuit boards. It’s commonly used as a flux in the soldering process of circuit boards. Rosin can clean the oxide and dirt on the surface of the circuit board and help the solder joint adhere better. This improves the reliability and quality of the solder joint. In addition, rosin can prevent the oxidation of the solder joint and extend the circuit board’s lifespan.
What are the traditional ways to clean PCB ?
In addition to clean PCB with dry ice cleaning, there are several common methods for cleaning circuit boards:
1. Chemical solvent cleaning: Using specific chemical solvents to dissolve and remove the rosin and other dirt on the circuit board. This method usually requires careful operation, as chemical solvents may cause damage to the circuit board.
2. Ultrasonic cleaning: Using the high-frequency vibration of ultrasound to generate tiny bubbles, which when contacting the surface of the circuit board will rupture, thereby removing dirt. This method can quickly and effectively clean circuit boards, but requires professional equipment.
3. Manual wiping: Using tools such as cotton swabs, brushes, or fiber cloth to manually wipe the dirt on the surface of the circuit board. This method is time-consuming, but can be done without using chemical solvents.
4. High-pressure water cleaning: Using a high-pressure water gun to spray water onto the surface of the circuit board to remove dirt. This method requires careful operation, as high-pressure water may cause damage to the circuit board.
Benefits to clean PCB with dry ice blasting machine
1. Non-destructive: Clean PCB with Dry ice will not cause any damage to the circuit board, because dry ice will sublime rapidly after contacting the surface of the circuit board, leaving no trace or residue.
2. Efficient: Dry ice cleaning can quickly and effectively remove rosin and other dirt on the circuit board, improving cleaning efficiency.
3. Environmental protection: Dry ice cleaning does not require the use of any chemical solvents, so it does not produce any harmful chemicals, which is friendly to the environment.
4. Safety: Dry ice cleaning does not require high temperature or high pressure, so it will not pose any danger to the operator.
5. Versatility: Dry ice cleaning can not only remove rosin, but also remove other dirt, such as grease, dust, etc.
In general, Clean with dry ice blasting is an efficient, environmentally friendly, and safe circuit board cleaning method, suitable for various types of circuit boards.
We company provide a special type Dry ice blaster WT-CC400B , which use dry ice block as the cleaning medium , with the professional cutting system to cut the block ice to be snow ice , this will be good for the surface without damage .
Welcome to subscribe to our Youtube channel @wantongdryice , where you will frequently find new cleaning videos to showcase amazing performance of our dry ice cleaning machines.
Video reference :
