Ultrasonic processing of a band of material passing between sonotrode and roller, employs cooling just below external surface of roller

摘要

The roller body (1) is cooled uniformly, just below its circumferential working surface (2). An independent claim is also included for corresponding equipment with a radial sonotrode (42), gap (Sp) and roller unit (10) working surface (2), which is cooled as described.