 |
|
Ultrasonic cleaning system is the most important part of the transducer. Existing two transducer, a magnetic transducer, ni or nickel alloy, A piezoelectric change
By zirconium, lead titanate or other ceramic. Will the voltage change into the piezoelectric material field, it will occur deformation, this is the so-called 'piezoelectric effect
Should be ". Relatively speaking, magnetic transducer is used in the magnetic field changes will occur in the deformation of material is made.
Whatever transducer, usually the most basic elements for the cavitation intensity. Ultrasound and other sound waves, is a series of pressure
Points, namely a compressed and expansion of alternate (below). If it is strong enough, liquid in doubled the wave of inflation was opened, the resulting stage of bubbles,
But in the wave of compression stage, these bubbles burst in liquid or in the moment, produce a kind of very effective wallop, especially suitable for cleaning. this
Process called the cavitation.
|
The compression and inflation |
|
|
Theoretically, # bubble burst cavitation can produce more than 10,000 psi pressure and 20,000 ° F (11,000 ° C), and the temperature in the burst
The instant shockwave will quickly radiate outward. Single cavitation bubble the release of energy is small, but every second of millions of cavitation bubble burst, simultaneously
The effect is very strong, powerful impact will surface of workpiece surface spalling, this is all characteristics of ultrasonic cleaning.
If the ultrasonic energy is enough big, cavitation phenomenon in production, so ultrasonic cleaning everywhere can effectively clean tiny cracks and hole. Cavitation effect also
In a chemical reaction and accelerate the surface film of dissolved.
But only in one area of the liquid pressure below the bubbles in gas pressure in this area will only generate cavitation phenomenon, the ultrasonic transducer produced by
Painting is big enough to satisfy the conditions. The minimum needed to generate power cavitation called cavitation. Different liquid exist different cavitation
Therefore, ultrasonic energy can reach the point to exceed cleaning effect. That is to say, only energy to produce more critical to cavitational bubble
Line ultrasonic cleaning.
 |
 |
 |
 |
 |
