Disadvantages of ultrasonic plastic welding machine

Now ultrasonic plastic welding machine is very popular in factories, mainly because it has the advantages of fast welding speed and stable quality. Many people take it and hot plate welding machine as the necessary equipment for plastic workpiece processing, which can process plastic workpieces of different sizes. The advantages of ultrasonic welding machine improve the production efficiency of the factory, but the best equipment has its disadvantages. Let's understand the disadvantages of ultrasonic plastic welding machine.

Ultrasonic plastic welding machine uses ultrasonic technology. When the ultrasonic transducer converts electrical energy into mechanical energy, it conducts through the material molecules of the workpiece. The sound resistance of ultrasonic wave in solid is far less than that in air. When the sound wave of ultrasonic welding machine passes through the joint of workpiece, the sound resistance in gap is large and the heat energy generated is also very large. In other words, the heat energy generated by the ultrasonic plastic welding machine is uneven, the melting speed of the workpiece at the gap will be faster, and the melting speed of other parts will be slower, which may affect the quality of welding.

Secondly, the ultrasonic plastic welding machine has certain requirements for the melting point of the two processed workpieces. They need the same melting point, because the temperature of the workpiece produced by ultrasonic is the same. If the melting points of the two are different, it is difficult to integrate together. Moreover, when the melting point of the welding workpiece exceeds 350 ℃, it is not suitable to use ultrasonic welding machine. On the contrary, hot plate welding machine and other equipment can achieve high-temperature welding.

The above is the description of the disadvantages of ultrasonic plastic welding machine. Through the description, we understand that the principle of ultrasonic has certain requirements for the workpiece, and there are certain limitations in material and melting point, which limits the welding work of ultrasonic welding machine in many aspects. In case of workpieces that cannot be welded by ultrasonic, other welding equipment, such as hot plate welding machine, shall be adopted. Through the description of this paper, we know that a processing equipment, no matter how great its advantages, can not meet the processing needs of the factory once it meets the places it cannot involve in the processing. It is hoped that the above two shortcomings of ultrasonic plastic welding machine can be improved through technical improvement.