Ultrasonic Cleaning Principle

As we all know, the sound that people hear is the sound wave signal with a frequency of 20-20000Hz. The sound wave higher than 20000Hz is called ultrasound. The transmission of sound wave propagates according to the longitudinal direction of the sinusoid, that is, one layer is strong and another is weak, and transmitted in turn, when a weak sound wave signal acts on a liquid, it will exert a certain negative pressure on the liquid, that is, the volume of the liquid increases, the molecular voids in the liquid increase, and many tiny bubbles are formed, and when a strong sound wave signal acts on the liquid. A certain positive pressure is generated, that is, the volume of the liquid is reduced by compression, and the minute bubbles formed in the liquid are crushed.

Studies have shown that when ultrasonic waves act on liquids, the burst of each bubble in the liquid will produce a shock wave with great energy, which is equivalent to instantaneously generating several hundred degrees of high temperature and up to thousands of atmospheres. This phenomenon is called the "cavitation effect"., ultrasonic cleaning is to use the shock wave generated by the bubble burst in the liquid to clean and wash the inner and outer surfaces of the workpiece.

What is an ultrasonic cleaning machine used for?

  • Cleaning: removes contaminants and clears small holes, such as cleaning stamps, antique repairs, and car electric nozzles emissions.
  • Stirring: speeds up dissolution, improves uniformity, accelerates physical and chemical reactions, prevents over-corrosion, and accelerates oil-water emulsification, such as solvent dye mixing, and ultrasonic phosphating.
  • Agglomeration: Accelerated precipitation, and separation, such as seed flotation, beverage deslagging, etc.
  • Sterilization: kill bacteria and organic pollutants, such as sewage treatment, degassing, and so on.
  • Crushing: Reduce solute particle size, such as cell crushing, chemical detection, etc.
  • Sealing: Eliminate the gap gas and increase the overall density, such as workpiece dipping paint, etc.

    What are the applications of ultrasonic cleaners?

    Among all the current cleaning methods, ultrasonic cleaning is the most efficient and effective one. The reason why ultrasonic cleaning can achieve such results is closely related to its unique working principle and cleaning method. We know that there are many things that need to be kept clean in production and life. There are many types and links that need to be cleaned. Common manual cleaning methods can't meet the requirements. Even steam cleaning and high-pressure water jet cleaning can't meet the cleanliness with higher demand, so this is why ultrasonic cleaning is increasingly used in a wide range of industries.

      1. In the machinery industry, ultrasonic cleaners can remove of rust and grease; the cleaning of measuring tools; the degreasing and derusting of mechanical parts; the cleaning of engines, carburetor and auto parts, the screening program and the cleaning of filters.
      2. In the surface treatment industry, ultrasonic cleaning machines can degreasing and derusting before electroplating; pre-ion plating cleaning; phosphating; removing carbon deposits, oxide scales, polishing pastes, surface activation of metal workpieces, etc.
      3. In the medical industry, ultrasonic cleaners can clean, disinfection, sterilization, cleaning of laboratory utensils, etc.
      4. In the instrumentation industry, ultrasonic cleaning machines provide high cleanliness cleaning of precision parts, cleaning before assembly, etc.
      5. In the electromechanical electronics industry, ultrasonic cleaners are used for printed circuit boards to remove rosin and welding spots; high-voltage contacts, terminals and other mechanical and electronic parts.
      6. In the optical industry, ultrasonic cleaners can used for degreasing, sweat removal, and dust removal of optical components.
      7. In the semiconductor industry, ultrasonic cleaning machines provide high cleanliness cleaning of semiconductor wafers.
      8. In the science and education culture: ultrasonic cleaners can be used for cleaning and descaling experimental utensils such as chemical organisms.
      9. In the watch and jewelry ultrasonic cleaners can used to remove sludge, dust, oxides, polishing paste, etc.
      10. In the petrochemical industry, ultrasonic cleaning machines are used for cleaning and unblocking metal filters; chemical containers, cleaning exchangers, etc.
      11. In the textile printing and dyeing industry, ultrasonic cleaners are used to clean textile spindles, spinnerets, etc.