Ultrasonic cleaning factors
6
BA_ES xtra ST_EN_Vers.08.2016
© Elma Schmidbauer GmbH
Ultrasonic units can produce annoying sounds.
Wear personal ear protection devices when working close to an
ultrasonic unit which is operated without cover.
The use of personal ear protection devices is particularly
recommended for operating the unit at 25 kHz with open cover.
Do not reach inside the cleaning liquid or touch sound-carrying
parts (tank, basket, cleaning items, etc.) during operation.
3
Ultrasonic cleaning factors
3.1
Functioning
Today, cleaning by ultrasound is the most modern fine cleaning
method.
The electric high-frequency energy created by an ultrasonic
generator is transformed into mechanical energy by piezo-
electrical transducer systems and is then transmitted into the
bath.
This process creates millions of tiny vacuum bubbles which
implode due to the variations of pressure caused by the
ultrasonic activity. Highly energetic liquid jets are created. These
jets remove dirt particles from surfaces and even from the
smallest grooves and bores.
Basically, the cleaning result depends on four factors:
Ultrasonic energy is probably the most important mechanical
factor in the cleaning process. This energy must be transmitted
through a liquid medium to the surfaces which are to be
cleaned.
The present Elmasonic unit is fitted with the innovative sweep
function device: electronic oscillation of the sound field (sweep
function) prevents the formation of zones of low performance in
the ultrasonic bath.
For saponification and removal of the dirt particles a suitable
cleaning agent is required. We have a large range of cleaning
media on offer.
The effect of the cleaning medium is improved by the optimised
temperature of the cleaning liquid.
The cleaning period depends on the degree and the kind of
contamination and on the correct selection of ultrasonic energy,
cleaning agent and temperature.
Noise emission
Sound transmission
at physical contact
Mechanical energy
Cleaning media
Temperature
Cleaning period
