What is ultrasonic atomization?
Ultrasonic spray is a unique spray technology, which is based on ultrasonic spray nozzle 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 through an ultrasonic atomization device, and then uniformly coated on the surface of the substrate with a certain amount of current carrying gas, forming a coating or thin film. Compared to traditional pneumatic two fluid spraying, ultrasonic atomization spraying can achieve better uniformity, thinner coating thickness, and higher accuracy. Meanwhile, due to the fact that ultrasonic nozzles do not require air pressure assistance to atomize, the use of ultrasonic spraying can significantly reduce paint splashing during the spraying process, achieving the goal of saving paint. The paint utilization rate of ultrasonic spraying is more than four times that of traditional two fluid spraying.
Principle of atomization spraying:
It is achieved by converting high-frequency sound waves into mechanical energy through piezoelectric transducers, and then converting mechanical energy into liquid. This vertical upward and downward vibration generates standing waves in the liquid film at the tip of the ultrasonic spraying equipment manufacturer's nozzle, where the amplitude of these waves can be controlled by a power generator. These stationary liquid waves can extend upwards from the top of the ultrasonic nozzle, and when the droplets leave the atomization surface of the nozzle, they are decomposed into fine mist of uniform micrometer or even nanometer sized droplets.
Composition of ultrasonic atomization spraying machine:
The whole machine is composed of ultrasonic atomization nozzle, dedicated driving power supply, XYZ three-axis linkage servo system, intelligent operating system, liquid supply system, low-speed air shaping device, shell box, etc.
Spray nozzle:
Utilizing the energy of ultrasound to disperse water or liquid, forming 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. We offer six types of ultrasonic atomization nozzles: wide area type, wide width type, scattering type, long nozzle type, converging type, and linear spray type.
Advantages:
1. The nozzle is essentially non clogging, has a self-cleaning device, and has no wear and tear 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 amount of overspray (up to 80%) is greatly reduced, which translates to significant material savings and reduced emissions to the environment.
Application:
Ultrasonic atomization spraying systems are now applied in many fields, especially in alternative energy and nanomaterials, glass industry, medical, printed circuit boards, semiconductors, and other fields. For example:
1. Ultrasonic fuel cell catalyst coating system
2. Thin film&perovskite solar cell coating system
3. Carbon nanotube, nanowire, and other nanomaterial coating systems
4. Thin film functional glass coating system
5. Hard coating and other thin film protective glass coating systems
