The principle of ultrasonic welding is to convert the 50/60hz current into 15, 20, 30 or 40 kHz by an ultrasonic digital generator, even up to 70khz. The high frequency electrical energy is the same frequency that the transducer converts into the mechanical motion again, and then the mechanical motion is transmitted to the welding head through a set to change the amplitude modulator. The welding head transfers the received vibration energy to the joint of the workpiece to be welded, in which the vibration energy is converted into heat by friction to melt the plastic. Ultrasonic waves can be used not only to weld hard thermoplastic fabrics, but also to process films.
The main function of ultrasonic generator is to generate high power and high frequency alternating current to drive ultrasonic transducer.Ultrasonic generator used in all kinds of ultrasonic equipment, mainly ultrasonic welding, ultrasonic cutting, ultrasonic chemical and acoustic chemistry.
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