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What Is The Principle Of Ultrasonic Plastic Welding?

​What is the principle of ultrasonic plastic welding? The principle of ultrasonic plastic welding is that the generator generates 20KHz (or 15KHz) high-voltage and high-frequency signals, and through the transducer system, the signals are converted into high-frequency mechanical vibrations, which are applied to the workpiece of plastic products, through the surface of the workpiece and between the molecules. The friction increases the temperature transmitted to the interface. When the temperature reaches the melting point of the workpiece itself, the interface of the workpiece melts rapidly, and then fills the gap between the interfaces. When the vibration stops, the workpiece is cooled and shaped under a certain pressure at the same time. A perfect weld is achieved.

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