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The cleaning process of ultrasonic cleaning machine is a very complicated process, and it is only a brief introduction.. The ultrasonic wave includes the energy function of the ultrasonic wave, the energy function of the hole destruction, and the stirring flow of the ultrasonic wave..
1. The ultrasonic energy: ultrasound has a high energy, its propagation in liquid media, the energy transfer to the mass media, mass media and energy transfer to cleaning the surface of the object and cause dirt dissociation and dispersion. The acoustic wave is a kind of longitudinal wave, that is, the vibration direction of the transmission medium is the same as the wave direction.. In the longitudinal wave, media particle motion caused by particle distribution unevenness, and density of different areas, in particle distribution sparse acoustic wave region to form a negative pressure, in the formation of positive pressure dense region acoustic distribution, and the formation of negative pressure, positive pressure alternating with continuous change, this kind of change not only makes mass media to get some momentum and acceleration. The energy of high frequency ultrasonic is very large.. When the energetic media particles interact with dirt particles, they transfer energy to dirt and cause their dissociation and dispersion..
2 the energy released when the hole is destroyed: the ultrasonic wave is the same as the usual sound wave in the media fluid.. The velocity of motion is related to the media, and the frequency of ultrasonic is higher than that of the ordinary ultrasonic wave, so the wave length and energy are high..
In the liquid medium straight forward ultrasonic, arrival and other material interface, transmission and reflection movement, transmission and reflection of the degree of is is composed of the acoustic impedance of the material interface rate decision, the acoustic impedance rate is the transmission medium of a given surface acoustic pressure and particle velocity ratio. All kinds of sound transmission medium has a fixed impedance ratio. When the ultrasonic wave is moving to the interface of two kinds of media, the main reflection is reflected, and the interface of the two media with the similar acoustic impedance is transmitted.. Such as when the road to the water air interface of the ultrasonic, due to the air density is much smaller than water, therefore acoustic impedance rate also varied far, so at this moment, the primary sonic reflection occurs; the same ultrasonic marching to water - steel interface, due to two medium between acoustic impedance difference between the rate of big, to the main also reflects. When the ultrasonic wave travels to the water - plastic interface, the acoustic impedance of the two media is close, so the main transmission of the ultrasonic wave is transmitted..
The reflected ultrasonic wave and the advance in the ultrasonic synthesis after, when every little bit difference remained unchanged, resonance occurs, in some fixed position superimposed on each other and strengthen, liquid medium in these locations prone to cavitation.
Because the ultrasonic to positive and negative pressure repeat alternating changes in the way forward propagation, the negative pressure in the liquid medium caused by tiny vacuum cave, when the gas dissolved in the liquid medium will soon enter the hole and the formation of air bubbles; and in positive pressure stage, the cavitation bubbles are adiabatic compression, the last being crushed, at the moment of bubble bursting around the hole will form a huge impact, so that the hole in the vicinity of a liquid or solid will be thousands of atmospheric pressure of high pressure. Emit huge energy. This phenomenon is strongly generated in the field of ultrasonic waves of low frequency range.. When the hole suddenly burst, can break the surface dirt film to achieve the purpose of decontamination.
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