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20khz 3200w High Power Ultrasonic vibrator with double-transducer for plastic welding
Parameter
Item | Parameter |
Frequency | 14.5~15.1Khz |
Power | 3200W |
Impedance | 14 |
Capatance | 14000~16000pf |
Description
When the ultrasonic wave acts on the thermoplastic plastic contact
surface, it will generate tens of thousands of high-frequency
vibrations per second. This kind of high-frequency vibration with a
certain amplitude will transmit the ultrasonic energy to the
welding area through the upper weldment. Because the welding area
is two The acoustic resistance at the welding interface is large,
so local high temperature will be generated. In addition, due to
the poor thermal conductivity of the plastic, it cannot be
distributed in time for a while, and it gathers in the welding
area, causing the contact surface of the two plastics to melt
rapidly, and after a certain pressure is applied, they are fused
into one. When the ultrasonic stops, let the pressure continue for
a few seconds to make it solidify and shape, thus forming a strong
molecular chain, achieving the purpose of welding, and the welding
strength can be close to the strength of the raw material. The
quality of ultrasonic plastic welding depends on three factors: the
amplitude of the transducer's welding head, the applied pressure
and the welding time. The welding time and welding head pressure
can be adjusted, and the amplitude is changed by the transducer and
the welding head.
Rod decision. There is an appropriate value for the interaction of
these three quantities. When the energy exceeds the appropriate
value, the melting amount of the plastic is large and the welded
material is easy to deform; if the energy is small, it is not easy
to weld firmly, and the applied pressure cannot be too large. The
optimal pressure is the product of the side length of the welded
part and the optimal pressure per 1mm of the edge
Application
1. Automobile: (Traffic industry) Ultrasound can be controlled by
computer programs to weld large and irregular workpieces such as
bumpers, front and rear doors, lamps, brake lights, etc. With the
development of high-grade roads, more and more reflectors are
welded by ultrasonic.
2. Home appliances: Through appropriate adjustments, it can be used
for: portable fluorescent lampshade, steam ironing door, TV shell,
recording, sound machine transparent panel, power rectifier, TV
shell screw fixing seat, mosquito-reducing lamp shell, washing
machine dehydration tank, etc. Sealed, strong and beautiful
household appliances.
3. Packing: The sealing of the hose and the connection of the
special packing belt.
4. Toy industry: The use of ultrasonic technology makes products
clean, efficient and firm, and eliminates the use of screws,
adhesives, glues or other auxiliary products, reduces production
costs, and greatly enhances the competitiveness of enterprises in
the market.
5. Electronics: The use of automation program design enables users
to achieve large-scale production while ensuring product quality
requirements.
6. Other commercial uses: From communication equipment, computer
industry, printing equipment to audio-visual products, etc.,
ultrasonic equipment can be used.