How to choose the corresponding ultrasonic welding process according to the product material?
Will the ultrasonic welding opportunity cause harm to the human body? Ultrasound is not a radiation source. It produces sound through the vibration of the object. Therefore, the operation of the ultrasonic welding machine will not cause any harm to the human body. Moreover, the high-speed vibration and heating of the object can be achieved through ultrasound, which can achieve higher welding efficiency and energy saving. Advantages, so it plays an important role in the fusion of many metals.
A plastic product may be made of multiple materials or components. To combine the components, mechanical fasteners, adhesives, and ultrasonic welding processes can be used. Among the three joining methods, the ultrasonic welding process has the best effect, and there are various forms of ultrasonic welding, and different welding processes can be used according to different materials, sizes, and uses. Let's learn more about these three processing techniques:
1: The adhesive can provide good characteristics and form a seam with excellent leak-proof function. However, the adhesive is difficult to handle and the curing speed is slow. At the same time, when the adhesive is used for bonding, the preparation of the seam and the cleanliness of the surface are relatively high.
2: Mechanical fasteners, adhesives and welding processes can all join two kinds of engineering plastics. Mechanical fasteners can quickly connect the two components, but the leak-proof function of the joint is poor, and local stress can also cause the polymer material to separate.
3: Ultrasonic welding machine has the purposes of welding, spot welding, riveting, embedding, cutting, and forming. Ultrasonic welding can produce firmly bonded seams with mechanical properties close to those of the parent material. Ultrasonic plastic welding is limited to thermoplastic polymers because thermoplastic materials can be softened by heating. After the thermosetting polymer is hardened, it cannot be softened by heating. Compared with metals, thermoplastic polymers require less heat for welding.
Ultrasonic welding has so many advantages, so: What materials can ultrasonic welding machine weld? Different product materials, how to choose the ultrasonic welding process? Ultrasonic welding process can be divided into two categories: 1: Mechanical mobile welding process: ultrasonic welding machine, friction welding and vibration welding. 2: External heating welding process: hot plate welding machine, hot gas welding and implant welding.
Principle of Ultrasonic Welding Machine: Ultrasonic welding machine converts 220V into 20KHz high-voltage electric energy, and uses vibrators to convert it into mechanical energy. Such mechanical vibration is transmitted to the workpiece through the transmission element and the welding head. The heat energy generated is used to break the molecular structure and melt the surface of the workpiece. Its strength is comparable to that of the bulk plastic. Ultrasonic welding is an advanced technology that realizes the joining of plastic parts with its advantages of speed, cleanness and safety. It has great strength and reliable performance; multiple protection circuits provide enterprises with efficient welding methods and reduce production costs. It is the best tool for making money for enterprises.