What is an ultrasonic horn?

The ultrasonic horn is an ultrasonic radiation head in the shape of a torus or a torus-like shape, and the ultrasonic horn has at least one first torus-shaped curved surface that radiates ultrasonic waves by bending vibration. The utility model replaces a single plane radiation surface with a radiation surface with curvature, greatly increasing the radiation area of the horn; at the same time, the radiation surface of the torus-shaped or torus-like tool head adopts a torus-like radial radiation, so the sound field uniformity in the liquid or gas is better; again, the radiation surface adopts a bending vibration mode, which changes the transmission direction of the vibration, making the radiation sound intensity more uniform, and improving the flexibility of the horn. It can be applied to some ultrasonic welding with a cross-section similar to a circular surface, and can also be used as a horn.