Ultrasonic Spraying PCB Protective Coating
Ultrasonic Spraying PCB Protective Coating – Cheersonic
Ultrasonic spraying equipment shows unique advantages and application value in spraying PCB (Printed Circuit Board). The following is a detailed analysis of ultrasonic spraying equipment spraying PCB:
1. Principle of ultrasonic spraying technology
Ultrasonic spraying is a technology that uses ultrasonic vibration to disperse the coating into small particles and spray them onto the surface of the coated object. Its core equipment is an ultrasonic oscillator, which can convert electrical energy into mechanical energy and generate high-frequency vibrations. When the oscillator contacts the liquid coating in the container, a standing wave effect is generated, causing the liquid to form tiny droplets under strong shear and compression forces, and then these droplets are sprayed onto the PCB surface through airflow or electric fields.
2. Advantages of ultrasonic spraying on PCB
– High coating uniformity: Ultrasonic spraying can produce very fine and uniform droplets, making the coating more evenly distributed on the PCB surface. This is very important for fine circuits and electronic components on PCBs, and can improve the performance and reliability of circuits.
– High material utilization: Since the droplet size is uniform and the spraying process is precisely controllable, it can reduce the waste of coating. Compared with traditional spraying methods, ultrasonic spraying can save a lot of coating materials and reduce production costs.
– Suitable for a variety of coatings: Whether it is flux, protective coating or other functional coatings, ultrasonic spraying equipment can adapt well. For example, when spraying flux, it can ensure that the flux is evenly covered on the solder joints to improve the welding quality; when spraying protective coating, it can provide good moisture, dust and corrosion protection for PCB.
– Little damage to PCB: Ultrasonic spraying is a non-contact spraying method that will not cause mechanical damage to PCB. This is especially important for some PCBs with high surface quality requirements, which can avoid problems such as circuit short circuit and open circuit caused by the spraying process.
3. Application of ultrasonic spraying in PCB protective coating
PCB protective coating is a polymer film applied to PCB to protect the circuit board and its components from environmental and corrosion effects. Ultrasonic spraying technology has significant advantages in preparing this protective coating:
- Enhanced environmental adaptability: Protective coatings can protect circuits from extreme environments (such as moisture, fungus, dust and rust), extending the service life of PCBs.
- Improved mechanical strength: During production and assembly, protective coatings can reduce mechanical stress on components and protect them from shocks such as thermal shock.
- Improved insulation strength: Protective coatings can increase the insulation strength between conductors, thereby improving the performance of circuit boards and allowing greater component density.
Ultrasonic spraying equipment has significant advantages and broad application prospects in spraying PCBs. With the continuous development of the electronics industry, ultrasonic spraying technology will play a more important role in the field of PCB manufacturing.
About Cheersonic
Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.
Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.
Chinese Website: Cheersonic Provides Professional Coating Solutions
