First, we need to know what is ultrasonic and what is high frequency (high frequency wave)?
1. Ultrasound refers to sound waves outside the range of human hearing. Normal people’s hearing can hear sound waves of 16 Hz (Hz)-20 kilohertz (KHZ). Sound waves below 16 Hz are called infrasound or subsonic waves, and sound waves above 20 kHz are called ultrasonic (super Acoustic), the ultrasonic welding machine also uses this technology of ultrasonic. Some people in the industry also call it ultrasonic plastic welding machine and ultrasonic welding machine .
2. The high-frequency refers to when the frequency of the sound wave is greater than 100KHZ, we call it high-frequency. The high-frequency fusion splicer uses this technology of high-frequency. The industry also calls it high-frequency welding machine, high- frequency welding machine and so on.
2. Working principle of high frequency welding machine and ultrasonic plastic welding machine
1. The working principle of the ultrasonic plastic welding machine is that the ultrasonic generator generates 20KHz (or 15KHz) high-voltage and high-frequency signal, and the signal is converted into high-frequency mechanical vibration through the ultrasonic transducer system, which is applied to the plastic workpiece and passes through the workpiece The friction between the surface and the molecules increases the temperature transmitted to the interface. When the temperature reaches the melting point of the workpiece itself, the interface of the workpiece melts rapidly, and then fills the gap between the interfaces. When the vibration stops, the workpiece is at a certain pressure at the same time After cooling and setting, effective welding can be achieved.
2. The working principle of the high-frequency welding machine is that the dielectric material under the action of high-frequency electromagnetic makes the internal molecules of the material violently collide with each other to generate high temperature and finally achieve the purpose of welding and welding.
Third, the characteristics of ultrasonic welding and high frequency welding characteristics of ultrasonic plastic welding machine:
1. No pollution, no pollution, green and environmental protection.
2. No overall heating is required, the workpiece is not easily deformed, and the machine power consumption is small. 3. The welding speed is fast, and the surface oxidation and decarburization of the workpiece is light. 4. The surface hardened layer can be adjusted as required, which is easy to control.
3. The plastic welding equipment is installed on the mechanical processing production line, which is easy to realize mechanization and automation, convenient management, saving manpower and material resources, and greatly improving production efficiency.
4. The martensite structure of the hardened layer is finer, with higher hardness, strength and toughness. 7. The surface layer of the surface workpiece has a large compressive internal stress, and the workpiece has a higher fatigue resistance.
Features of high frequency welding machine:
1. The power output is powerful, the cycle rate generated by the oscillator of this machine is 27.12MHZ or 40.68MHZ, which conforms to the international industrial band standard. Various control devices and special electronic circuits can avoid improper operation, and can weld products and improve products in the fastest time. Yield.
2. Highly sensitive spark protection device, when sparks are generated, it can automatically cut off the high-cycle circuit to reduce damage to machinery and objects. When the current is too high, it will automatically cut off the high-voltage guarantee oscillating tube and rectifier.
4. Applicable materials for ultrasonic welding and high frequency welding
Ultrasonic plastic welding machine is suitable for: ABS, PS, PP, PET, PA, PC, acrylic and other engineering plastics and other plastic materials.
High frequency applications: mainly used for various polyvinyl chloride PVC, PU, TPU, PET, leather and other materials
He Shun (Shenzhen) Machinery Equipment Co., Ltd.
Contact: Mr. Yang
Mobile phone: 13600429568
Mailbox: hs@hsszjx.com
Website: www.hsszjx.com
Address: 3D, Building 4, No. 12, Jiangshi First Industrial Zone, Jiangwei Community, Matian Street, Guangming District, Shenzhen
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