SED-CHJJ-A — Soldadora de plástico por ultrasonidos

Ultrasonic welding of thermoplastics: AC 220 V/50 Hz is converted to 15 kHz or 20 kHz high-frequency electrical power; the transducer converts it to mechanical vibration, which is amplified through a booster (cone) and transmitted through a horn under controlled pneumatic pressure (typically 2 kg/cm² working) to the workpiece. High-frequency friction at the joint surface generates rapid intermolecular heating until the plastic melts; the ultrasound then stops and the molten zone solidifies during the hold period to form the welded bond. Sequence: weld-button press → horn descent → delay timer (0–9.99 s, after limit switch trips) → weld timer (0–9.99 s, transducer fires) → hold timer (0–9.99 s for cooling/solidification) → horn ascent → counter +1.