| 摘要 |
<p>The invention concerns a sonotrode (S), in particular rotary, made of a first ultrasonic wave propagating material, in particular, metal, comprising an axial bar (2) and an active part (4) linked to the axial bar (2), the bar extending continuously over the entire extent of the sonotrode, and a space (8), made of a second material not allowing transmission of the ultrasonic waves from the first material to the second, the second material being in particular air or vacuum, is interposed between the bar (2) and the active part (4).</p> |
