Plastic Ultrasonic Welding Generator 15KHz for Ultrasonic Welder

15KHz Vertical Digital Plastic Ultrasonic Welding Generator for Ultrasonic Welder(PLC), Powerbox

How ultrasonic welding machine works?

Ultrasonic technologies are not only quick and efficient but also extremely eco-friendly for processing thermoplastics, films, and fabrics. The principle of the technology is based on the generation of internal heat (molecular friction) by ultrasound and the boundary friction in the join or separation zones of thermoplastics.

The ultrasonic welding machine comprises four main components: a power supply which is a generator, a converter, a Booster, and a horn (or sonotrode). The generator changes AC electricity at a frequency of 50-60 Hz into a high-frequency electrical supply up to 20, 30, or 40 kHz. This electrical energy is supplied to the converter. Within the converter, rings of piezoelectric ceramics are sandwiched between two metal sections. The converter will change the electrical energy into mechanical vibratory energy. The vibratory energy is then transmitted through the booster, which increases the amplitude of the ultrasonic. The ultrasonic energy is then transmitted to the horn. The horn is an acoustic tool that transfers the vibratory energy directly to the parts being assembled with the pressure needed. The vibrations are transmitted through the plastic materials to the joint area. Here the vibratory energy is converted to heat through friction - melting the thermoplastic, and joining the plastic parts together.