What Is Ultrasonic Spraying Technology?

The principle of ultrasonic atomization involves three basic steps: the propagation of ultrasonic kinetic energy, the expansion of ultrasonic kinetic energy, and the nucleation and refinement of droplets. Firstly, the sound energy propagate s from the ultrasoni generator to the ultrasonic atomization container in the form of ultrasonic waves, causing sound pressure fluctuations. Secondly, due to the change in internal pressu re , the liquid expands under pressure , producing vortices. Finally, under the action of vortices, the liquid is forced to be extruded and forms droplets, which are then broken and cross-linked multiple times, resulting in gradually refined and small droplets.

Applications: 

Ultrasonic spray technology can be used to deposit uniform nano-coatings on substrates of any width. Ultrasonic spray technology enables these very thin coatings to be produced with extremely high uniformity, even in a very wide range, for unique nano applications. Ultrasonic nano material coating systems are uniquely suited to spraying nanosuspensions like CNTs, nanowires, perovskite, graphene, and others.

Ultrasonic transducer convert high-frequency signals into mechanical energy. As the liquid leaves the atomization surface of the nozzle, it is broken into uniform micro-sized droplets. This is different from traditional nozzles which rely on pressure and high-speed movement. Ultrasonic nozzles use high-frequency vibrations to atomize the liquid, with low energy consumption and minimal waste. The liquid can be delivered to the nozzle by its own weight or a low-pressure liquid pump for continuous or intermittent atomization.

Non-clogging spray

Unlike pressure nozzles, ultrasonic nozzles don’t need small holes to generate pressure. The liquid is fed into the nozzle center via a larger hole without pressure, and is atomized by the ultrasonic vibration in the nozzle. The liquid supply channel and hole in the nozzle are relatively large,achieving non-clogging spraying.

More stable spraying

Ultrasonic spraying systems can be integrated with automated equipment for stable spraying coating, with particle sizes ranging from 25um to 50um.

Anti-pollution

The nozzle is made of high-strength titanium alloy and other proprietary metals, making it highly resistant to chemical corrosion and having  excellent acoustic performance. The electrical components are contained in a sealed housing that protects the nozzle assembly from external pollution..

Application fields

Ultrasonic atomization spraying systems are now widely used in many fields, mainly in energy and nano-materials, electronics,medical equipment, glass coating, and industrial sectors.

Alternative energy and nanomaterials : Ultrasonic fuel cell catalyst coating system, electrolytic tank coating system, perovskite solar cell coating, carbon nanotubes, nanowires and other nanomaterial coating systems, spray pyrolysis and TCO coating systems.

Electronics: Ultrasonic soldering flux spray system, ultrasonic selective melting system, spray-plastic photoresist coating system for semiconductor lithography, packaging-level electromagnetic interference shielding protective coating.

Medical equipment: Coating systems for medical diagnostic equipment and reagents, coating systems for blood collection tubes/injector tubes, ultrasonic and antibacterial coating systems for bandages and infection protection,ultrasonic nozzles for biological aerosols, cell biology, and immunological research.

Glass and industrial: Anti-fouling float glass coating system, functional glass coating for thin film, hard coating and other thin film protective glass coating, protection and functional coating for lens coating system.