Ultrasonic Spray Coating Machine

Micron-level fine mist droplet bench-top ultrasonic atomization spraying equipment

Micron-level fine mist droplet bench-top ultrasonic atomization spraying equipment

short description:

The piezoelectric effect is used to convert electrical energy into high-frequency mechanical energy, which is then transferred to the liquid to generate standing waves. The liquid is introduced into the atomization surface through the nozzle, and when it leaves the nozzle atomization surface, it is broken into uniform micron-sized fine mist droplets to achieve atomization, and then evenly coated on the surface of the substrate by the carrier gas to form a coating or film.
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Parameter

Frequency (khz) 40Khz(Customized)
Generator model HF010
Input Voltage 220V/50Hz
spray nozzle material Titanium alloy
Shell material Stainless steel
Communication port with RS485 DB15 
coating width 10~50mm
coating particle size 15~40um
Material viscosity requirement <100cps
solid content ＜10%
Ultrasonic power 100W，10~90% adjustable
External fluid viscosity  requirement ＜ 100cps
coating flow capacity ＜40ml/min
Hole diameter 0.3~1.5mm

Features

1. High spraying precision: can achieve better uniformity, coating uniformity can reach more than 95%; can accurately control coating thickness, achieve control accuracy of nanoliters per second, and prepare coatings with film thickness ranging from tens of nanometers to tens of microns; can accurately control atomization flow, low flow continuous spray, and spray shape is easy to control and shape.
2. High material utilization rate: Since ultrasonic spraying is liquid atomization through ultrasonic oscillation, no high-pressure air is required, which greatly reduces liquid rebound and splashing, raw material utilization rate can reach more than 90%, and coating transfer efficiency can reach an average of 90%, which is much higher than air spray system.
3. Simple equipment maintenance: liquid is transmitted to the spray head by its own gravity or low-pressure pump, without blockage, wear, noise, pressure, and moving parts. No cooling water is required during atomization, low energy consumption, simple equipment, low failure rate, ultrasonic nozzle has self-cleaning function, and daily maintenance-free.
4. Wide range of applications: It can handle liquids with a viscosity of up to 12,500CPS, can be used for a variety of solutions, and can even atomize sewage, chemical liquids, oil mucus, etc.; it can work in a variety of environments such as high temperature, vacuum, and pressurization

Key components

Ultrasonic atomizing nozzle: usually made of medical-grade special ceramics, with extremely high hardness and wear resistance, can withstand the mechanical stress caused by long-term high-frequency vibration, and ensure the stability and reliability of long-term use; the specially designed nozzle structure combined with the characteristics of ultrasonic vibration can efficiently convert the liquid into tiny droplets, improving the atomization efficiency.
Liquid supply system: Common ones include precision injection pumps, gear pumps, plunger pumps, etc., which are used to accurately control the delivery volume of liquid to meet different spraying needs.
Motion control system: such as XYZ three-axis precision motion module, with a comprehensive trajectory editing system, can realize the spraying function of any two-dimensional plane graphics, such as rectangles, circles, triangles or curves.

Application fields

New energy field: used in the electrolysis process of fuel cells and proton exchange membrane electrolyzers, which can produce highly durable and uniform carbon-based catalyst ink coatings; it can also be used in the manufacture of thin-film photovoltaic cells, thin-film solar coatings, perovskite solar cells, solar cells, etc., to deposit anti-reflection layers, TCO coatings, buffer layer coatings, etc.
Biomedicine field: can be used for spraying vascular stents and other medical devices for transplantation, spraying blood collection tubes and syringes, encapsulation of drug microspheres, spraying proteins/enzymes and reagents, etc.
Electronic products field: suitable for the production of solder powder, flat display panels and touch screen microsphere deposition, superconductor substrate spraying, carbon nanotube deposition on touch screens, etc.
Other fields: in the manufacturing industry, it can be used for spraying spices, flavorings and oils, atomizing and drying ceramics, etc.; it can also be used for coating spraying of daily consumables
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