High Frequency Vibrations 3200W Ultrasonic Welding Machine

28KHZ/35KHZ Ultrasonic spot welding machine for N95 mask earband for medical

When the ultrasonic wave acts on the contact of thermoplastic materials, it will produce tens of thousands of high-frequency vibrations per second. This kind of high-frequency vibration reaches a certain amplitude, which will generate local high temperature. Because of the poor thermal conductivity of the plastic, the temperature can not be distributed in time for a while, and it will gather in the welding area, resulting in the rapid melting of the two plastic contact surfaces. When a certain amount of pressure is applied, it will be integrated. When the ultrasonic stops, let the pressure last for a few seconds, make it solidify and form a solid molecular chain, achieve the purpose of welding, and the strength is close to the strength of raw materials.

28KHZ/35KHZ Ultrasonic spot welding machine for N95 mask earband for medical