The working principle of Dongguan ultrasonic plastic welding machine:
Ultrasonic energy is transmitted to the weld zone by the upper weldment, and localized high temperatures are generated due to the large acoustic impedance at the weld zone, i.e., at the interface of the two welds. Moreover, due to the poor thermal conductivity of the plastic, it can not be dissipated in time and gather in the weld zone, so that the contact faces of the two plastics melt rapidly, and after a certain pressure, they are integrated into one. When the ultrasonic wave stops, let the pressure last for a few seconds to solidify it, thus forming a strong molecular chain for welding purposes, the welding strength can be close to the strength of the raw material.
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