Our mask-specific ultrasonic system consists of an ultrasonic transducer, an ultrasonic power source and an ultrasonic tool head. The ultrasonic principle is that the high-frequency oscillating electrical signal generated by the generator is converted into high-frequency mechanical vibration by the transducer, and the amplitude is amplified by the horn to drive the steel membrane to achieve 20,000 vibrations per second. , High-frequency friction produces instant high temperature, which makes the masks welded together in multiple layers or the mask band and the face of the mask are welded together