20Khz Ultrasound Transducer for Mask Maching Earloop Welding
Equipment
Description:
Ultrasonic transducer is a very important part of ultrasonic
welding equipment, which undertakes the energy conversion function
of the equipment, so the quality and suitability of the ultrasonic
transducer have a great influence on the equipment. Ultrasonic
transducer is a kind of energy conversion device. It is a sensor
developed by using the characteristics of ultrasonic waves. The
piezoelectric effect of the material converts electrical signals
into mechanical vibration. Ultrasonic transducer is an energy
conversion device. The function is to convert the input electric
power into mechanical power (ultrasound) and then transmit it, and
it consumes a small part of the power.
Specifications:
| Model | QR-5020-4HZ |
| Frequency | 20khz |
| Output power | 2000 watt |
| Joint bolt | M18*1.5 |
| Ceramic disc Diameter | 50mm |
| Qty of ceramic discs | 4pcs |
| Capacitance | 11-12nf |
| Amplitude | 10 um |
| Application | Mask Earloop welding machine |
Parameters of Ultrasonic Tranducer:
The choice of ultrasonic transducer should pay attention to the
matching of input and output, mechanical installation and matching
size, and the following parameters should be considered:
1. Resonant frequency:
The frequency refers to the frequency measured by the transmission
line method with a frequency generator, millivoltmeter, or the
frequency measured with an impedance characteristic analyzer or
similar instruments. Generally known as small signal frequency. The
opposite of it is the machine frequency, that is, the actual
operating frequency measured when the customer connects the
transducer to the drive power supply through a cable and is
energized with no load or load. Because the matching circuits of
customers are different, the frequency of the same transducer with
different driving power supply is different, and such frequency
cannot be used as the basis for ordering.
2. Transducer capacity:
That is, the free capacitance of the transducer can generally be
measured with a capacitance bridge at a frequency of 400Hz-1000Hz,
or an impedance characteristic analyzer similar to the instrument.
The capacitance of the ultrasonic transducer can also be measured
with a general portable capacitance meter.
3. Way of working:
Due to different processing methods and requirements, the working
methods of ultrasonic transducers can be roughly divided into
continuous working (metal welding) and pulsed working (plastic
welding). Different working methods have different requirements for
the transducer. Generally speaking, continuous work has almost no
pause time, but the working current is not very large, and the
pulse work is intermittent, with pauses, but the instantaneous
current is very large, and the power in both states is very large.
Ultrasonic transducer type and maximum power:
There are different requirements for the nominal power of machines
for different purposes, and the nominal power of the same
ultrasonic transducer may be different when used on different
machines. To avoid ambiguity, customers should specify the
structure of the transducer, such as column type, inverted horn
type, etc., as well as the diameter and number of piezoelectric
ceramic wafers.
The above are several parameters that need to be paid attention to
in the selection process of ultrasonic transducer. Whether the
transducer is suitable will directly affect the actual performance
and stability of the ultrasonic welding machine. Hangzhou Qianrong
Automation Equipment has been focusing on the field of ultrasonic
welding for many years, and currently it can be used in different
fields. Customers provide various high-quality performance
ultrasonic transducers and various ultrasonic welding equipment!
20Khz Ultrasound Transducer for Mask Maching Earloop Welding
Equipment
