| 摘要 |
<p>The invention comprises an ultrasonic transducer (1) to which there is coupled a sonotrode (2) or an end part with a portion functioning as a sonotrode, provided to vibrate according to a direction which can be oriented in relation to a working surface where there are plastics to be welded arranged under a free end (2a) of the sonotrode (2), the sonotrode (2) internally defining a first conduit (3) for the circulation of a cooling fluid and which exits to the exterior through the free end (2a), and said head (C) having a fluid supply connection (4). It comprises a second conduit (30) communicating the first conduit (3) with the connection (4), with an inlet (30e) arranged above the sonotrode (2) or the portion functioning as a sonotrode of the end part.</p> |
