Ultrasonic Transducers for Welder Machine

In Jiayuanda Technology company, the normal ultrasonic transducers for welder machine, frequency is 20khz 28khz 35khz 40khz and the diameter is 15-50mm/ 100w-4200w power

According to the diameter, it can be divided into 25mm 30mm 38mm 45mm 50mm.

Plus the number of ceramic pieces, there are 2 pieces, 4 pieces, 6 pieces and 8 pieces.

The screws are also different. There are M8 * 1 8 * 1.25 10 * 1 10 * 1.25 12 * 1.25 12 * 1.5.

Pay special attention to 3/8-24 1/2-20 screws, or they will not be installed.

And the ultrasonic welder transducers should be placed in a dry place so as not to affect the normal work of ultrasonic vibration. If the ultrasonic vibrator is damp, put it in the oven to set about 100° C for drying for 2 hours or use a hair dryer to dedamp until the resistance value is normal

Specifciation of Ultrasonic Transducers for Welder Machine

FAQ:

Q: How to test the quality of Ultrasonic Transducers for Welder Machine?

1, it can be identified from the manufacturing process and appearance of the ultrasonic transducer; Ultrasonic wave indirectly shows that the company pays attention to the quality of products, and the quality of products with good technology and appearance will naturally be better (but it can't be opposite). Moreover, the design process indirectly affects the output and quantity.

2, it can be identified according to the process design and application data of ultrasonic transducer; However, this requires understanding and rich experience of transducer data. Whether the design is reasonable or not should be determined according to the selected materials. The quality of the materials indirectly affects the quality of the products, and it is not always possible to copy them according to the plate. The quality of materials with the same specifications is different from that of origin, and even the best technology can make good products with poor materials.

3, parameter detection; Check whether the parameters of ultrasonic transducer can match the parameters of electric box, and whether the desired effect can be achieved.

4, the computer experiment:

1- Power input experiment: This method can detect the mating status between the transducer and the electric box, and reflect the power input of the electric box and the transducer load. The larger the mold belt, the better the task effect, and the stronger the power input. (The current can only reflect the input efficiency, not the equipment power)

2- Fluctuation experiment (simulated aging experiment): Take extra load of equipment to detect the fluctuation of power input of electrical box and transducer.

3- Overload operation test: test the fluctuation and life of output and quality. This test only needs to bring extra load to continue discontinuous operation for 8 hours.

Q: Does the Ultrasonic Transducers for Welder Machine have an impact on the power of the ultrasonic power supply

Matching the ultrasonic transducer with the ultrasonic generator driving power supply and the ultrasonic mold to form a complete ultrasonic equipment can be abbreviated as matching. Due to the decisive impact of matching on the overall performance of the machine, the importance of matching cannot be overemphasized. The main factor to consider for matching is the capacitance of the ultrasonic transducer, followed by the frequency of the transducer.

It should be emphasized that the ultrasonic transducer itself is not an energy generator, it is just an energy converter. It converts electrical energy into sound energy (mechanical energy), and can convert (output) a large amount of energy under the premise of good matching between input (driving power) and output (amplifier, ultrasonic mold).

Input matching refers to the matching between the ultrasonic transducer and the ultrasonic power supply. If the output matching is good but the input matching is not good, it indicates that the transducer is weak and the welding is not firm. If the output matching is not good and the input matching is good, the transducer will be overloaded, causing chip misalignment, cracking, breakage, screw breakage, aluminum cracking, or burning of the power tube of the electric box. For example, just like a car slamming on the accelerator in neutral, the engine is definitely prone to damage.

There are four main aspects to match the ultrasonic transducer with the driving power supply, namely impedance matching, frequency matching, power matching, and capacitance impedance matching.

Frequency matching is also very important. This is first because the ultrasonic transducer can only work at its resonant frequency point, so the driving power supply, amplitude converter, and welding mold (tool head) should all work at this frequency. Generally speaking, we hope that the maximum difference does not exceed ± 0.1khz, and it would be better if it were smaller. We strongly recommend that the frequency of your matching welding mold (welding head) be around 0.1 khz lower than the vibration frequency (small signal frequency). That is to say, if the frequency measured by the small signal of the original oscillator is 14.85 khz, it is most ideal to measure the frequency again after connecting the mold to 14.75 khz.

At the same time, it should be considered that after the ultrasonic transducer is connected to the amplitude converter and mold head, the resonance frequency peak of the system becomes very sharp, that is, the bandwidth is very narrow, the mechanical quality factor is large, and any frequency deviation will cause a significant increase in impedance. It is manifested in the driving power supply that the power supply (amplitude meter electrical power) is very high or overload protection. If it happens to be an idle adjustment at this time, it is likely to cause chip misalignment, chip cracking, or center screw breakage.

Power matching and impedance matching mainly consider that the ultrasonic welding system operates in a gap mode, with significant load changes. Sufficient power output is required during welding, and the minimum amplitude should be controlled during no-load operation. Otherwise, as mentioned earlier, if the input is large during no-load, it will damage the transducer. It's useless to not increase the power when fully loaded, or to not weld firmly.

For more details of Ultrasonic Transducers for Welder Machine, please feel free to contact us ！