| 摘要 |
Complex ultrasonic sonotrode comprising several simple sonotrodes with rectangular and circular impressions. The impressions are characterized by a cutting design composed of oblique or non-oblique pyramids, truncated or not, whose angle between the sides of two contiguous pyramids is 90 DEG . The sonotrode is particularly adapted for welding between semi-rigid polystyrene and moulded cellulose. |
