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How to choose ultrasonic horn
Latest company news about How to choose ultrasonic horn

Ultrasonic horn is an important part of the ultrasonic vibration system. Its main function in the vibration system is to amplify the mass displacement or velocity of the mechanical vibration, and concentrate the ultrasonic energy on a small area, that is, the energy is collected. Also known as ultrasonic shift levers or ultrasonic concentrators.

Ultrasonic horns (ultrasonic horns), as the name suggests, are functional components that match the amplitude of ultrasonic vibrations with ultrasonic transducers. Its main function is to change the amplitude of the transducer (generally increase), improve the vibration ratio, improve the efficiency, improve the mechanical quality factor, enhance the heat resistance, expand the temperature range, and prolong the service life of the transducer. The ultrasonic transducer adjusts the load matching between the transducer and the ultrasonic tool head by installing a horn (ultrasonic horn), which reduces the resonance impedance and makes it work at the resonant frequency to improve the electro-acoustic conversion efficiency. Reduces the heat generation of the ultrasonic transducer and increases the service life.

In the principle of ultrasonic welding machine, the ultrasonic amplitude modulator device amplifies the output of the vibration energy outputted by the transducer, and the selection of the amplitude modulator is mainly analyzed by the following points:

First, the welding area of the job.

The size of the welding area has different requirements for welding energy, which corresponds to the amplitude modulation selection of the amplitude modulator. The larger the welding area, the greater the demand for welding energy. The amplitude modulation of the ultrasonic modulator is relatively high, the welding area is small, and the welding energy requirement is smaller, and the selection of the ultrasonic modulating device can be correspondingly reduced.

Second, the workpiece material.

Pp, pe, nylon and other crystalline resins are difficult to weld, and the amplitude of the ultrasonic modulator is higher than that of the amorphous material.

Third, the workpiece structure.

When the structure of the workpiece has a weak structure, such as a slender or weak structure, because it is easily damaged, a lower amplitude should be selected for the ultrasonic modulating device to prevent the ultrasonic device from causing vibration damage to the working workpiece during the welding operation.

Pub Time : 2021-05-17 11:25:50 >> News list
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