PZT4 Black Ceramics 20Khz Ultrasound Welding Transducer 1500w Power
Description:
Transducer is a device that converts electrical energy and acoustic
energy into each other. Used in echo sounders, Doppler logs, and
acoustic related taxis. A device that converts electrical energy
into acoustic energy is called a transmitting transducer; it is a
receiving transducer that converts acoustic energy into electrical
energy. Transmit and receive transducers are usually used
separately, but one can be shared. The main performance indicators
of the transducer are: operating frequency, bandwidth,
electro-acoustic frequency, impedance at resonant frequency,
directivity (transmitting beamwidth) and sensitivity. Depending on
the physical characteristics and materials used, transducers can be
divided into two categories: magnetostrictive transducers and
electrostrictive transducers. The former applies the
magnetostrictive effect of ferromagnetic materials, often made of
nickel or nickel-iron alloy; the latter uses electrostrictive and
piezoelectric effects, often made of dielectric materials such as
barium titanate ceramics and lead titanate ceramics. . The
transducer is mounted to the bottom of the ship and its directivity
can be characterized by beamwidth or semi-diffusion angle.
Specifications:
| Model | QR-5020-4HZ |
| Frequency | 20khz |
| Output power | 1500 watt |
| Joint bolt | M18*1.5 |
| Ceramic disc Diameter | 50mm |
| Qty of ceramic discs | 4pcs |
| Capacitance | 11-12nf |
| Amplitude | 10 um |
| Application | Plastic welding machine |
Characteristics of Ultrasonic wave:
The laws of reflection, refraction, diffraction, and scattering of
ultrasonic waves in the medium are not fundamentally different from
the laws of audible sound waves. But the wavelength of the
ultrasound is very short, only a few thousandths of a millimeter.
Compared to audible sound waves, ultrasound has many singular
characteristics:
Propagation characteristics—The wavelength of the ultrasonic wave
is very short. The size of the ordinary obstacle is many times
larger than the wavelength of the ultrasonic wave. Therefore, the
diffraction power of the ultrasonic hot melt machine is very poor.
It can orient the straight line in a uniform medium, and the
wavelength of the ultrasonic wave is higher. Short, this feature is
more significant.
Power Characteristics - When sound travels through the air, it
pushes the particles in the air back and forth to work on the
particles. The sound power is the physical quantity that indicates
how fast the sound wave works. At the same intensity, the higher
the frequency of the sound wave, the greater the power it has.
Since the ultrasonic frequency is high, the power of the ultrasonic
wave is very large compared to the general sound wave.
Cavitation When the ultrasonic waves propagate in the liquid, small
holes are created inside the liquid due to the intense vibration of
the liquid particles. These small hollow ultrasonic weldings
rapidly expand and close, causing a violent impact between the
liquid particles, resulting in pressures of thousands to tens of
thousands of atmospheres. This violent interaction between the
particles causes the temperature of the liquid to rise suddenly,
which acts as a good agitation, emulsification of the two
immiscible liquids (such as water and oil), and accelerates the
dissolution of the solute and accelerates chemical reaction. This
various effects caused by the action of ultrasonic waves in the
liquid are called cavitation of the ultrasonic waves.
PZT4 Black Ceramics 20Khz Ultrasound Welding Transducer 1500w Power
