1 Principle :

Ultrasonic spraying, also known as ultrasonic spraying, is a spraying process that utilizes ultrasonic atomization technology. The material sprayed is first in a liquid state, which can be a solution, sol, suspension, etc. The liquid coating is first atomized into fine particles by an ultrasonic atomization device, and then uniformly coated on the surface of the substrate with a certain amount of carrier gas, thereby forming a coating or film. The biggest difference between ultrasonic spraying and traditional single or two fluid spraying is that the atomization device or atomization nozzle uses an ultrasonic atomization device, namely an ultrasonic nozzle.

Atomization is the use of ultrasonic energy to disperse water or liquid, forming liquid particles of several tens of micrometers in size, which are used for spraying, coating, granulation, etc. Compared to traditional pneumatic two fluid spraying, ultrasonic atomization spraying can achieve better uniformity, thinner coating thickness, and higher precision. The coating utilization rate of ultrasonic spraying is more than 4 times the fluid spraying.

Ultrasonic spraying equipment is mainly used in fuel cells, flux spraying, thin-film solar coatings, solar cells, graphene coatings, silicon photovoltaic cells, fragmented coatings, etc

2 Composition of ultrasonic atomization spraying machine :

The whole machine is composed of ultrasonic atomizing nozzle, dedicated driving power supply, XYZ three-axis linkage servo system, intelligent operating system, liquid supply system, low-speed air shaping device, housing box, etc.

3 Description :

There are six types of ultrasonic atomizing nozzles, including wide area type, wide width type, scattering type, long nozzle type, gathering type, and line spray type.

4 Nozzle :

By utilizing the energy of ultrasound, water or liquid is dispersed to form tiny particles ranging from a few micrometers to over 100 micrometers in size, achieving purposes such as air humidification, liquid granulation, mixing, promoting chemical reactions, spraying, and metal melt powder production.

5 Advantages :

1. The nozzle is essentially non clogging, equipped with a self-cleaning device, and has no wear on moving parts, greatly reducing downtime in critical production processes.

2. The spray pattern is easy to form and accurate spray, and the highly controllable spray produces reliable and consistent results.

3. The nozzle adopts a corrosion-resistant titanium alloy structure, with a long service life and excellent acoustic performance, making its application range more extensive.

4. Ultra low flow capacity, easy to control, capable of repeated intermittent or continuous spraying. Moreover, due to the water droplets staying on the substrate instead of rebounding, the overspray amount is greatly reduced (up to 80%), which translates into significant material savings and reduced emissions to the environment.

6 Application :

Ultrasonic atomization spraying systems are now widely used in many fields, particularly in alternative energy and nanomaterials, glass industry, healthcare, printed circuit boards, semiconductors, and other areas. For example:

New energy: fuel cells, membrane electrodes, thin-film solar cells, exchange membranes, lithium battery separators, perovskite solar cells, solar photovoltaic silicon wafers, etc;      

Medical: balloon catheter, blood collection tube injector, stent, biosensor, microfluidic chip, heart valve, antibacterial coating, etc;

Microelectronics and semiconductors: silicon carbide seed crystal adhesion, soldering flux, photoresist coating, conductive coating, hydrophilic and hydrophobic coating, conductive ink, PI, PET, etc;

Glass production: glass coating, float glass, photovoltaic glass, photoresist film, transparent conductive, electrochromic, etc;

Nanotechnology: carbon nanotubes, polymer fibers, nanofilms, carbon nanotube films, graphene composite materials, etc; 

7 Technical Parameters :