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Ultrasonic Nozzle

 

 
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Ultrasonic Nozzle
 
 
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This type of spray nozzle
Spray nozzle

A spray nozzle is a device that facilitates the formation of spray. When a liquid is dispersed as a stream of droplets , it is called a spray. Spray nozzles are used to achieve two primary functions: increase liquid surface area to enhance evaporation, or distribute a liquid over an area....
 utilizes high (20 kHz to 50 kHz) frequency vibration to produce nearly narrow drop size distribution and low velocity spray from a low viscosity liquid. The vibration of a piezoelectric crystal causes capillary waves on the nozzle surface liquid film. The primary factors influencing the drop size produced are frequency of vibration, surface tension
Surface tension

Surface tension is an attractive property of the surface of a liquid. It is what causes the surface portion of liquid to be attracted to another surface, such as that of another portion of liquid ....
 and density
Density

The density of a material is defined as its mass per unit volume. The symbol of density is ....
 of the liquid.

applying flux to very precise areas on a circuit board to the application of carbon nanotubes on to touch-screens.

maceuticals and stent coating both benefit greatly from the ability to apply polymer
Polymer

A polymer is a large molecule composed of repeating structural units typically connected by covalent chemical bonds. While polymer in popular usage suggests plastic, the term actually refers to a large class of natural and synthetic materials with a variety of properties....
s and other materials with little to no losses.






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Encyclopedia


This type of spray nozzle
Spray nozzle

A spray nozzle is a device that facilitates the formation of spray. When a liquid is dispersed as a stream of droplets , it is called a spray. Spray nozzles are used to achieve two primary functions: increase liquid surface area to enhance evaporation, or distribute a liquid over an area....
 utilizes high (20 kHz to 50 kHz) frequency vibration to produce nearly narrow drop size distribution and low velocity spray from a low viscosity liquid. The vibration of a piezoelectric crystal causes capillary waves on the nozzle surface liquid film. The primary factors influencing the drop size produced are frequency of vibration, surface tension
Surface tension

Surface tension is an attractive property of the surface of a liquid. It is what causes the surface portion of liquid to be attracted to another surface, such as that of another portion of liquid ....
 and density
Density

The density of a material is defined as its mass per unit volume. The symbol of density is ....
 of the liquid.

Applications of Ultrasonic Nozzles


Electronics Manufacturing

From applying flux to very precise areas on a circuit board to the application of carbon nanotubes on to touch-screens.

Medical Industry

Pharmaceuticals and stent coating both benefit greatly from the ability to apply polymer
Polymer

A polymer is a large molecule composed of repeating structural units typically connected by covalent chemical bonds. While polymer in popular usage suggests plastic, the term actually refers to a large class of natural and synthetic materials with a variety of properties....
s and other materials with little to no losses. An ideal solution for applications requiring precise coatings utilizing a very narrow spray pattern. Liquids are delivered through an external hypotube to the nozzle's atomizing surface. A low-pressure air stream through the nozzle's central orifice entrains the spray and produces tight, precise spray pattern. Spray width can be as low as 0.015" (0.4 mm) are possible. Soft, low-velocity atomized spray can be targeted with unmatched precision with minimal overspray (minimal waste). Ultra-low flow rates can be achieved over a wide range (from 0.3 - 9 ml/hour). Self-cleaning ultrasonic nozzle can prevent clogging.

Renewable energy

Photovoltaic and dye-sensitized solar technology both need the application of liquids and coatings during the manufacturing process. With most of these substances being very expensive, any losses due to over-spray or quality control are minimized with the use of ultrasonic nozzles.

Nanotechnology

As manufacturing techniques get closer and closer to the sub-atomic level, dipping parts and components in a bath is no longer viable. Extremely accurate spray will be needed more and more as technology shrinks to the point where processes can no longer be seen with the naked eye.