The principle of ultrasonic plastic welding involves a generator producing a high-voltage, high-frequency signal at 20KHz (or 15KHz). Through a transducer system, the signal is converted into high-frequency mechanical vibrations, which are applied to the plastic workpiece. This causes the temperature at the interface to rise due to friction on the surface and between the molecules. When the temperature reaches the melting point of the workpiece, the interface melts quickly, filling the gaps between the interfaces. Upon stopping the vibration, the workpiece cools and sets under a certain pressure, resulting in a perfect weld.

The innovative 15KHz ultrasonic plastic welding machine delivers unique effects for welding softer materials like PE and PP, as well as ultra-large diameter and ultra-long plastic weldments. It meets the needs of various products and contributes to user production efficiency and product quality.