Machine mounted ultrasonic plastic tube sealing equipment is the use of ultrasonic energy in the welding area to produce local high temperature, so that the surface of the thermoplastic material quickly melting, with a certain pressure, so that the integration of the welding equipment

Principle:

When the ultrasonic acts on the thermoplastic plastic contact surface, it will produce tens of thousands of times of high-frequency vibration per second. The high-frequency vibration reaching a certain amplitude will transfer the ultrasonic energy to the welding area through the upper weldment. Because the welding area is the junction of the two welding, the sound resistance is large, so it will produce local high temperature. And because of the poor thermal conductivity of plastic, it can not be distributed in time for a while, gathered in the welding area, resulting in the rapid melting of the contact surface of two plastics, plus a certain pressure, so that it is fused into one. When the ultrasonic wave stops, let the pressure continue for a few seconds to make it solidify, so as to form a strong molecular chain, 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 welding head of the transducer, the added pressure and welding time, the welding time and welding pressure can be adjusted, the amplitude is determined by the transducer and the horn. 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 firmly, and the pressure added cannot be too large.