What is the working principle of an ultrasonic plastic welding machine?

The ultrasonic plastic welding technology is a very mild joining technology for processing thermoplastic materials and non-ferrous metals. In the plastic processing industry, the ultrasonic plastic welding machine has many uses. The user of it manually loads the plastic parts to be connected and then takes them out from the ultrasonic welder after welding. Depending on the size and geometry of the components, one or more ultrasonic electrodes can be used to weld these components. Usually, a reliable ultrasonic plastic welding machine can support a constant workflow of producing high-quality plastic products. So, what exactly is the working principle of an ultrasonic plastic welding machine? Please let me introduce this to you in the following contents.

l  Here is the content list:

l  What can an ultrasonic plastic welding machine do?

l  What are the components of an ultrasonic plastic welding machine?

l  What is the working principle of an ultrasonic plastic welding machine?

What can an ultrasonic plastic welding machine do?

The main functions of ultrasonic plastic welding are not hard to know, since the name of this machine has already told us a lot. Generally speaking, the ultrasonic plastic machine has various assembly solutions such as spot welding, continuous welding, hot riveting, riveting, flanging, inserting, etc. This type of machine mainly transfer the electricity into the mechanical energy, which is the ultrasound, and then use it to melt the plastic workpiece in a pretty mild way, and then weld them up again properly, then the whole producing process of an ultrasonic plastic welding machine is down. The whole working cycle of such a machine is quite quick, which makes it a wonderful choice for industrial production.

What are the components of an ultrasonic plastic welding machine?

Well, the full range of the components of an ultrasonic plastic welding machine is quite long, so to put it more briefly, I will mainly discuss the acoustic components for ultrasonic plastic welding. The first one is the generator, it converts the electrical frequency of the mains into the corresponding high-frequency electrical energy. And then, the piezoelectric transducer converts the 20,000 Hz electricity into mechanical vibration of the same frequency. Then, the energy is mechanical and are ready to be used. A booster or amplitude amplifier is used to increase or decrease the amplitude produced by the converter. Finally, the ultrasonic generator is the last element of the sound chain, as it transmits ultrasonic energy to the workpiece that is going to be welded.

What is the working principle of an ultrasonic plastic welding machine?

The working principle of an ultrasonic plastic welding machine is not hard to understand, so I am gonna start with the concept of ultrasound to introduce it more briefly. Ultrasound is a mechanical vibration, similar to the vibration produced by musical instruments. These vibrations are called ultrasonic waves because their frequency is higher than human hearing (greater than 16 kHz). In the acoustic component of an ultrasonic plastic welding machine, these pressure waves are generated by a generator, which will send alternating current at the same frequency as the transducer. Then, a transducer made of piezoelectric ceramics converts this energy into mechanical vibration. Then, mechanical vibration will generate thermal friction, which will stimulate the plastic molecules to start moving. The plastic will soften and melt, causing the parts to bond together. Finally, the welding action is completed by an ultrasonic generator. It is quite easy to conclude that an ultrasonic plastic welding machine is very suitable for plastic thermal riveting or thermal stacking.

If you are looking for a reliable ultrasonic plastic welding machine to purchase, please make sure you check out the ones in Hangzhou Shengpai Technology Co., Ltd, their nice and high-quality machines are definitely appealing to your unique taste.