Ultrasonic plastics person who weld support the plastics a dedicated device welding each other, utilize ultrasonic wave high-frequency vibration is it weld plastics pieces of two interface fast melting and solidification finish procedure of welding to make within 0.1- second and under certain pressure, do not need to add the auxiliary materials while welding, have the speed of welding fast, high, such advantages as the appearance is beautiful of intensity. It weld method is it weld , transmit weld , rivet welding , is it weld , is it is it weld the function to weld , excise to bury to click directly to have. The welding machine of ultrasonic wave has already applied different trades of making etc. to electron, electric apparatus, stationery, toy, household supplies, lighter extensively. Various kinds of mould plastics the hot fusibility plastic products of shaping can be welded with the welding machine of ultrasonic wave.