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Principle Of Ultrasonic Equipment
Jul 03, 2017

When ultrasound acts on thermoplastic contact surfaces, will produce tens of thousands of times per second high-frequency vibration, this reach a certain amplitude of high-frequency vibration, through the welding piece to the ultrasonic energy transfer to the weld area, as a result of the weld area of two welding interface at the junction of large acoustic resistance, it will produce local high temperature. Also because of the poor thermal conductivity of plastic, the temporary can not be distributed in time, gathered in the weld area, resulting in two of plastic contact surface melting rapidly, coupled with a certain pressure, so that the integration into one. When the ultrasound stops acting, let the pressure last for a few seconds, so that it solidifies, forming a solid molecular chain to achieve the purpose of welding