超聲波塑膠焊接原理：
Principle of Ultrasonic Plastic Welding:
      超聲波塑膠焊接有發生器產生20KHZ（15KHZ或40KHZ）的高壓、高頻信號、通過換能系統，把信號轉換為高頻機械震動，加壓與塑焊制品工件上，通過工件表面及內在分子間的摩擦而使傳到接口處的穩定升高，當穩定到此工件本身的熔點時，使工件接口迅速熔化，繼而填充于接口間的空隙，當震動停止，工件同時在一定的壓力下冷卻定形，達到完美的焊接。
    The generator produces 20KHZ(15KHZ or 40KHZ)high-volage and high-frequency signal and translates it via a transducer into high-frequency mechanical vibration, which is exerted to the articles to be plastic-welded. The friction on the surface of the articles and the molecules inside leads the temperature at the interface to rise to their melting point, so that the interface of the articles melts quickly and the void between their interfaces is filled. When vibration stops, the articles get cooled and shaped at some pressure, which can make the welding perfect.
      超聲波塑膠焊接機在焊接塑料制品時，既不要添加任何粘接劑、填料或溶劑，也不消耗大量熱源，具體操作簡便、焊接速度快、焊接強度高、生產效率高等優點。因此超聲波焊接技術越來越廣泛地獲得應用。
    While ultrasonic plastic welder is welding plastic products, it neither needs to add any adhesive, nor consumes a large deal of heat. This welder enjoys easy and quick operation, high strength and productivity. Therefore, the technology of ultrasonic welding is more and more widely applied in practice.