Ultrasonic cleaning equipment applied in the process of industrial production belongs to the realm of industrial precision cleaning. Ultrasonic cleaning technology is widely used in many fields such as food, textile, paper, printing industry, petroleum processing industry, transportation, electric power, metal processing industry, machinery, automobile manufacturing, instrumentation & electronics, household appliances, medical, etc.
What's ultrasonic wave: sound waves are divided into three types, infrasonic waves, sound waves, and ultrasonic waves. The frequencies of infrasonic waves are below 20hz, the frequencies of sound waves are in the range of 20hz~20khz, the frequencies of ultrasonic waves are above 20khz. Infrasonic waves and ultrasonic waves are inaudible to the human ear. Ultrasonic waves have many features like high frequency, short wavelength, good directivity and penetrability in propagation. That's why they are used for design and production of ultrasonic cleaning tank.
Ultrasonic cavitation effect is the dynamical processes in which cavitation bubbles in liquid are forced to grow and collapse due to a certain acoustic pressure, small vacuum bubbles in liquid collapse and cause many phenomenons such as high pressure, high temperature, electrical discharge, luminescence, shock wave, etc. The factors affecting the formation of vacuum void include ultrasonic energy, implosion shock, impact and friction of high-speed fluid, strong reactions, etc.
Along with the development of industry, the workpieces cleaned by the ultrasonic cleaning machines become more and more fine, and there are increasingly high requirements on cleanliness of the workpieces. Considering both cleaning effect and economy, It is critical to choose the right frequency and power for ultrasonic cleaning, generally we need to get data from practice.
Ultrasonic cavitation effect provides probable conditions for degradation of harmful organic substance, and thus realizes wastewater treatment by ultrasonic technology. In sewage treatment process, acoustic cavitation can greatly increase the degradation rate. By collapse of bubbles, a large amount of energy will be released to cause chemical bonds cleavage, and form hydroxyl (OH) and hydrogen (H) radicals, and oxidize dissolved organic compounds, formed as a consequence of OH, HO2, inorganic ions, and other easily degradable organism. So ultrasonic method can make non-biodegradable organics easily to degradation.
According to requirements of cleaning objects and production scale, ultrasonic cleaning machines have great difference on composition and structure, It can be a complex and huge equipment or a very simple design. Here we focus on the cleaning effect of ultrasonic bath which consists of ultrasonic transducer, ultrasonic generator and cleaning tank.
In the using process of ultrasonic cleaner, the failure inevitably occurred and requires maintenance. For some good reputation manufacturers, the cleaners will be repaired within the guarantee period. However, how about the repairs in emergency situations or after the warranty expires? Let's brief introduce how to repaire an ultrasonic cleaner as below.
When we choose an ultrasonic cleaner, first we should know which one is the best cleaning method for our workpieces. in the second, what cleaning effects should be achieve? In the third, we should know the quantity of products and the cleaning capacity of equipment. Fourth, know about cleaning process from similar industry enterprise or cleaning equipment manufacturers. Fifth, choose a number of professional manufacturers, and compare them in cleaning technique, price and after-sales service. Sixth, in deciding a contract, the specification and type of material, the consumables price, maintenance and warranty terms and conditions and other necessary particulars should be stipulated as clearly as possible. Seventh, for some large cleaning machines, you need to take the workpieces to the factory for site acceptance. Eighth, you should make sure that your employees have really learned to operate the cleaner, and not listen to installers to say, they have been trained.
