Principle of ultrasonic welding machine: 

ultrasonic action on the thermoplastic plastic contact surface, will produce tens of thousands of high frequency vibration per second, this high frequency vibration to a certain amplitude, through the welding parts of the ultrasonic energy to the welding area, because the welding area is two welding interface at the sound resistance, so will produce local high temperature. And because of the poor thermal conductivity of plastic, it can not be timely distributed, gathered in the welding area, resulting in the rapid melting of the two plastic contact surface, plus a certain pressure, so that the fusion into one. When the ultrasonic wave stops, let the pressure continue for a few seconds, so that it solidifies, so that a strong molecular chain is formed, to achieve the purpose of welding, welding strength can be close to the strength of the raw material. The quality of ultrasonic plastic welding depends on the amplitude of the transducer welding head, the pressure and welding time, welding time and welding head pressure can be adjusted, the amplitude of the transducer and the amplitude. Rod decision. There is an appropriate value for the interaction of these three quantities. When the energy exceeds the appropriate value, the melting amount of plastic is large and the welding is easy to deform. If the energy is small, it is not easy to weld, and the pressure added can not be too large. This optimum pressure is the product of the best pressure per 1mm of the side length and edge of the welding part. Ultrasonic metal welding principle: Ultrasonic metal welding principle is a special method to connect the same metal or dissimilar metal by using the mechanical vibration energy of ultrasonic frequency (more than 16KHz). In ultrasonic welding, metal neither delivers current to the workpiece, nor imposes high temperature heat source to the workpiece, but under static pressure, the vibration energy of the frame is transformed into friction work, deformation energy and limited temperature rise between the workpiece. Metallurgical bonding between joints is a solid state welding without melting of the base metal. Therefore, it can effectively overcome the splash and oxidation phenomena caused by resistance welding. Ultrasonic metal welder can weld copper, silver, aluminum, nickel and other non-ferrous metal wire or thin sheet materials for single point welding, multi-point welding and short strip welding. Can be widely used in silicon controlled lead, fuse piece, electrical lead, lithium battery pole piece, pole ear welding.