Today, Dongguan ultrasonic plastic welding machine manufacturers talked to you about the topic, why do you say this? In fact, I want everyone to know from the most basic technical knowledge, so that we can better understand the ultrasonic plastic welding machine! Then, to understand the working principle of ultrasonic welding, you need to know from the ultrasonic.
First, the working principle of ultrasonic: when the object vibrates, it will make a sound. Scientists refer to the number of vibrations per second as the frequency of the sound, and its unit is Hertz. The frequency of sound waves that we can hear in human ears is 16 to 20,000 Hz. Therefore, when the vibration of the object exceeds a certain frequency, that is, higher than the upper limit of the hearing threshold of the human ear, people cannot hear it. Such sound waves are called ultrasonic waves. The ultrasonic frequency commonly used for medical diagnosis is 1 to 5 MHz.
Second, the principle of ultrasonic welding: the ultrasonic energy is transmitted to the weld zone by the upper weldment, because the weld zone, that is, the intersection of the two welded joints has a large sound resistance, so local high temperature will occur. Moreover, due to the poor thermal conductivity of the plastic, it can not be dissipated in time and gather in the weld zone, so that the contact faces of the two plastics melt rapidly, and after a certain pressure, they are integrated into one. When the ultrasonic wave stops, let the pressure continue, and some pressure retention time, so that it is solidified, thus forming a strong molecular chain, for welding purposes, the welding strength can be close to the strength of the raw material body.
Dongguan Yihui Machinery Equipment Co., Ltd. is a professional enterprise specializing in the design and manufacture of ultrasonic plastic welding machine, ultrasonic mold and automatic folding welding machine. Our company has been engaged in the ultrasonic industry for many years and its performance is relatively stable and mature. The welding equipment mainly adopts mature technology such as Taiwan's self-excited oscillation circuit, and the output is strong and stable, the protection is perfect, and it is sturdy and durable. The core components such as transducers are imported from Japan and West Germany, with long service life and excellent performance. It is a good helper for your production! Welcome to inquire!
2017-05-17
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