20khz Piezoelectric Ceramic Ultrasonic oscillator For Ultrasound welding

First, a short description of ultrasonics. Ultrasound is the range of sound frequencies just above average human hearing range. Ultrasonic welding typically occurs at frequencies between 50 kHz and 15 kHz.

The ultrasonic wave is created through the use of piezo-electric ceramics which have a special property where they expand or contract when exposed to an electrical current. The ceramics are typically housed in a component called a "transducer". The size and number of ceramics determines the amplitude and power of the ultrasonic waves that can be generated.

For most standard equipment, transducers are a common component to which ultrasonic tools can be attached. The ultrasonic tool is designed to apply a specific amount of ultrasonic energy into a defined area. Depending on the amplitude, frequency, and power applied, the ultrasonic waves can be used to generate heating and weld materials, agitate a  liquid for cleaning, or for inspection

Naming method:

T - Transducer

50 - The outside diameter for piezoceramic ring (mm)

20 - The frequency of the transducer

4 - The number for piezoceramic ring,

D - The type of transducer D means Chinese type,B-Branson type,Z-NTK type.

PARAMETER

20Khz transducer Parameter datasheet

Power parameter

Description:

Ultrasonic Transducer for Welding, Drilling and Polishing High-power ultrasonic drilling machine, welding machine, polishing machine vibrator have small machinery loss, high efficiency electricity and sound transfer, big swing and less heat.

The transducer converts high-frequency electrical energy into high-frequency mechanical vibrations. And it contains several piezoelectric ceramic discs sandwiched under pressure between two metal blocks. Between each disc is a thin metal plate, which forms the electrode. When a sinusoidal electrical signal is fed to the transducer via the electrodes, the discs expand and contract, producing axial vibrations.

15Khz transducer widely used in high power welding&sealing system.Piezoelectric transducer is the electric charge that accumulates in certain solid materials in response to applied mechanical stress. It is key point of all ultrasonic equipment.The transducer decide the property of the machine.We can supply transducer, also transducer with house and booster.

To design and fabricate the transducers according to customers' requirements.

Advantage

1. The piezoelectric ceramic chip adopts imported parts, and can give a strong and stable output.
2. High efficiency, high mechanical quality factor, obtaining high electric-acoustic conversion efficiency work at the resonance frequency points.
3. Large amplitude: optimization design by computer , vibration speed ratio is high .
4. Large power,Under the action of prestressed screw, the energy of the piezoelectric ceramic to get maximum play;
5. Good heat resistance, small harmonic impedance, low calorific value, using temperature range is wide.