30khz 2000W Ultrasonic Friction Welding Machine With Modularized Structure

The iAG series ultrasonic welding machine is DONGHO innovative, high-quality, and precise ultrasonic welding machine, with DONGHO proved proportion valve technology, with 7 welding modes, and fully electronic welding machine settings. The operation process is connected by Ethernet, and the data connection supports Industry 4.0. Application, IDCS interconnection service remote monitoring and collection, connecting to MES system, perfect control of product quality. We carry out quality monitoring, statistical process control, and picture descriptions of the welding process to provide support for users to find parameters and quality records during production, as well as permission management, log records of user behavior and welding results, and data output.

Technical Parameters:

The ultrasonic plastic welding process

Ultrasonic waves used in plastic processing, the existing several operating frequencies are 15KHZ, 20KHZ, 30KHZ, 40KHZ. Its principle is to use the longitudinal wave peak position to transfer amplitude to the gap of plastic parts, under pressure, so that two plastic parts or other parts and plastic parts of the contact part of the molecular collision to produce melting, so that the contact plastic fusion, to achieve the purpose of the welding process.

Which kind of plastic ultrasonic welding effect is good?

Amorphous polymer (ABS, PC, PS, PVC, PMMA, etc.): the molecular arrangement is disordered, there is an obvious material gradually soft, melting, and flow temperature. Such resins are generally effective at transmitting supersonic vibrations and achieving good welding over a fairly wide range of pressures/amplitudes.

Crystalline polymer (PE, PP, POM, PA6, PA66, PBT, PET, etc.): the molecular arrangement is orderly, with an obvious melting point and refreezing point. Solid crystalline polymers are elastic and can absorb some of the high-frequency mechanical vibrations. Therefore, such polymers are not easy to transmit ultrasonic energy to the bonding surface, which requires a higher amplitude. High energy is required to break the semi-crystalline structure and make the material change from the crystalline state to the viscous state, which also determines the obvious melting point of this kind of material. Once the molten material leaves the heat source, the temperature will decrease to a certain extent, which will lead to the rapid solidification of the material.

Secondly, generally speaking, non-polar compounds (such as PP and PE) are more difficult to be ultrasonic (not impossible) welded, polar compounds can be ultrasonic welded, and between polar compounds can also be ultrasonic welded, such as ABS and PMMA can be ultrasonically welded.