28KHZ PZT-4 PZT-8 Ultrasonic Spot Welding Transducer Horn Piezoelectric Material Transducer

28KHZ PZT-4 PZT-8 Ultrasonic Spot Welding Transducer Horn Piezoelectric Material Transducer

The ultrasonic oscillator, also known as the ultrasonic oscillator, connects the transducer to the amplitude converter and is called the oscillator as a whole. It is a device that realizes the mutual conversion of electrical energy and mechanical energy (acoustic vibration) by the Piezoelectricity of piezoelectric ceramics, and amplifies through the front and rear radiation cover blocks matched with acoustic impedance. [1]

Due to the fact that the amplitude transformer is a passive device, it does not generate vibration itself, but only changes the amplitude of the input vibration before transmitting it out, completing impedance transformation.

Ultrasonic transducers can generate regular vibrations under electric field excitation, but the amplitude is generally within 10 μ Around m, such an amplitude is not enough to directly complete the welding and processing processes.

Therefore, after the transducer is connected to a reasonably designed amplitude converter, the amplitude of the ultrasonic wave can vary over a large range. As long as the material strength is sufficient, the amplitude can exceed 100 μ M.

Common Materials for Ultrasonic Vibrators

1. Aluminum horn has high sound transmission efficiency, but the material has low strength, is prone to cracking and screw hole slipping
2. Steel horn has high strength, but relatively high acoustic impedance
3. Titanium alloy horn has good comprehensive performance, but its disadvantages are high price and difficult processing.

28KHZ PZT-4 PZT-8 Ultrasonic Spot Welding Transducer Horn Piezoelectric Material Transducer

标签：28KHZ PZT-4 PZT-8 Ultrasonic Spot Welding Transducer, Ultrasonic Spot Welding Transducer Horn Piezoelectric Material Transducer