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Six Misunderstandings of Ultrasonic Welding
Latest company news about Six Misunderstandings of Ultrasonic Welding

Six Misunderstandings of Ultrasonic Welding


1. The misunderstanding of the workpiece of the ultrasonic welding machine
Ultrasonic welding machines also have requirements for the material of the workpiece to be welded. Not all materials can be welded. Some people understand that any material can be welded. This is a big misunderstanding. Some of the different materials can be welded better, some are basically fused, and some are not fused. The melting point of the same material is the same, and it can be welded in principle, but when the melting point of the workpiece to be welded is greater than 350°C, ultrasonic welding is not suitable.

2. Process Misunderstanding of Ultrasonic Welding Machine
Ultrasonic energy bursts in an instant, the welding point should be dots or lines, and the transmission distance must be in line with the ultrasonic welding method. Some people think that as long as it is a plastic material, no matter how the joint surface can be welded well, this is also a misunderstanding.

3. The structural misunderstanding of ultrasonic welding machine
There are many types of ultrasonic molds (HORN). The shape of the workpiece determines the shape of the mold. However, the size, curvature, and material of each part must be strictly calculated. Some people mistakenly think that it is just a metal block. Whether the design is reasonable or not directly affects the mold's efficiency, life, and product qualification rate, and in severe cases, it will directly burn out the generator.

4. The misunderstanding of the choice of ultrasonic welding machine
How much output power to use, oscillation frequency, and amplitude range should be considered according to factors such as the material of the workpiece, the area of ​​the welding wire, whether there are electronic components in the workpiece, and whether it is airtight or not. Misunderstood that the greater the power, the better. This is also a misunderstanding. If you don’t know much about ultrasound. It is best to consult a regular ultrasonic production plant engineering and technical personnel. If possible, it is best to collude with the manufacturer on site, and do not blindly follow the misleading of some informal ultrasound sales staff. At present, companies that produce related equipment are particularly mixed, most of which are family-style workshops, mimicking circuits mechanically, and they don’t understand the working principle.

5. The misunderstanding of ultrasonic welding machine
Quite a few people who have been engaged in ultrasonic welding for many years have a misunderstanding about the transmission of ultrasonic energy. They think that sound waves are welding on the contact surface. In fact, this is a misunderstanding. The real welding principle is: after a transducer converts electrical energy into a machine The acoustic resistance of the sound wave in the solid is much smaller than that in the air through the conduction of the material molecules of the workpiece. When the sound wave passes through the joint of the workpiece, the acoustic resistance in the gap is large, and the generated heat energy is quite large.

6. The power misunderstanding of ultrasonic welding machine
The ultrasonic output power is determined by the diameter and thickness of the piezoelectric ceramic sheet, material, and design process. Once the transducer is finalized, the maximum power is finalized. It is a complicated process to measure the output energy. The larger the energy device, the more power tubes are used in the circuit, and the greater the output energy. It requires a very complicated amplitude measuring instrument to accurately measure its amplitude. Because most users know too much about ultrasound, and some sales The misleading of personnel gives consumers a misunderstanding.

Pub Time : 2021-05-25 10:22:15 >> News list
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