Enjoying The Benefits Of Ultrasonic Cleaning
Various metal products production technologies require practicing special and delicate approaches as for the cleaning of the details’ surfaces. However, the form of many products doesn’t allow effective internal surface degreasing; dealing with blind holes or threaded connections in the conventional washers is another challenge. Fortunately, the panacea is already there and available for large-scale production facilities – ultrasonic baths not only cope with the degreasing of parts quickly and efficiently, but also enable you to get rid of rust, a variety of adhesives, lapping lubricants (including the ones based on graphite) and even grinding and polishing pastes based on chromium oxide.
How it works?
Washing in ultrasonic baths is carried out through placing the items in a liquid which often is an aqueous solution of detergent-based surfactants. Unlike washing products with blasting chambers, cleaning with ultrasonic baths provides an ability to take advantage of water-soluble detergents with different pH, from acid to strongly alkaline. This allows the use of ultrasound equipment for the removal of carbon from the molds and dies, cleaning oxides, degreasing of metal and other materials.
Ultrasonic cleaning method is based on the phenomenon of cavitation. Powerful ultrasonic transducers acting on the fluid, creating the field of variable pressure, the density of which varies with the master oscillator frequency. The nodes of cavitation are constantly formed, collapsing steam bubbles and forming bursting effect, which in turn affects the pollution, increasing the effectiveness of detergents in the tens or hundreds of times. The lower the frequency is, the larger the size of the cavitation bubbles and thus they are more powerful, however, the effect can damage the precision parts, such as printed circuit boards or polished surfaces if applied to the frequency of 40 kHz. Another weak point is considerable energy consumption and quite complicated infrastructure maintenance.
In addition to ultrasonic power use, baths themselves deal with ultrasound – the approach used to enhance the effect of degreasing and cleaning of metal parts with complex shapes (for example in the processes where solvents are used, as well as submersible with jet washing machines).
Ultrasound systems can be incorporated in existing lines degreasing parts, as well as for the organization of pre-metal degreasing in electroplating lines. Ultrasonic washing allows for additional cleaning of parts and longer-lasting impact electrochemical degreasing baths clean.
Modern ultrasonic cleaner equipment for degreasing based on technologies developed by Hilsonic is considered to be one of the best choices as for price value ratio. Hilsonic Company is investing heavily in researching, modernizing and testing, which results into decent quality ultrasonic cleaning devices. Thus, the piezoceramic transducers used on Hilsonic devices allow a 97% efficiency to convert the current frequency into vibrational energy. Ultrasonic washing is no longer an exotic cleaning method, and mostly due to the pioneers and evangelists of the method, putting significant effort into making the technology cost-efficient and, of course, effective. Thus, ultrasound method pays for itself within the first year of use at medium-scale enterprises.