14/5000 What are the working principles of ultrasonic spot welder

The working principle of Ultrasonic spot welder is:

Through the oscillating circuit to oscillate the high-frequency signal from the transducer into mechanical energy (that is, the frequency beyond the human ear hearing threshold of high-frequency mechanical vibration energy), the energy through the welding head is transmitted to the plastic workpiece, with tens of thousands of times per second vibration and pressure to make the plastic workpiece after intense friction of the joint surface melting. The transient pressure maintained on the workpiece after the vibration has ceased causes the two welds to solidified into one by molecular linkage. The general welding time is less than 1 second, and the welding strength obtained can be comparable to the body. Ultrasonic plastic welding machine can be used for thermoplastic butt welding, also used for riveting welding, spot welding, embedded, excision and other processing technology. According to the appearance of the product to design different sizes of the mold, so as to complete the product needs the welding effect