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The role of horn in ultrasonic processing
Latest company news about The role of horn in ultrasonic processing

Ultrasonic horn, also known as ultrasonic speed change lever, ultrasonic amplification lever, ultrasonic concentrator. In ultrasonic processing equipment, the horn is also one of the important components of the ultrasonic vibration system. The role of horns in ultrasonic processing is mainly reflected in the following aspects:

 

① Amplify the amplitude or gather energy.

The reason why a horn can amplify the amplitude is that the vibration energy passing through any of its sections is constant (the propagation loss is not taken into account). Because the energy density is proportional to the square of the amplitude, so where the section is small, the energy density is large and the amplitude is also Just got enlarged. In order to obtain a larger amplitude, the resonance frequency (ie, the resonance frequency) of the horn should be made equal to the frequency of the externally excited vibration, so that it is in a resonance state.

 

② Effectively transfer energy.

The horn can be used as a mechanical impedance transformer in detecting ultrasound, so that the transducer and the acoustic load can be better matched and coupled, and the ultrasonic energy can be transferred and exchanged between the transducer and the acoustic load more effectively.

 

③Fixed mechanical system.

In ultrasonic processing, the acoustic system must be well fixed, otherwise it will affect the processing effect. Generally, we process a flange on the node designed by the horn, and then fix the flange, so that the acoustic system in ultrasonic processing is well fixed, and the mechanical energy is reduced as much as possible. loss.

 

④ isolation.

The horn makes the thermal and chemical insulation between the transducer and the working medium, so as to prevent excess heat from being transmitted to the transducer during processing, which affects the performance of the transducer.

 

latest company news about The role of horn in ultrasonic processing  0

Pub Time : 2020-01-06 10:35:42 >> News list
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