Using ultrasonic welding technology, the high-frequency electric energy is converted into mechanical vibration energy through the ultrasonic transducer, and then the mechanical vibration energy is transferred to the welding head after changing the amplitude through the banner device. When the welding head is close to the surface of the processed product, ultrasonic waves are automatically generated, and micro-amplitude high-frequency vibration is made on the surface of the processed product, and the friction with the surface of the processed product is converted into heat, and the processed product is melted and then welded. Welding operation is relatively more Marumi's welding, and welding with different effects can be obtained by changing the welding head.

1. Welding method: The welding head vibrated with ultrasonic ultra-high frequency under moderate pressure will cause the joint surfaces of the two plastics to generate frictional heat and melt and join instantly. The welding strength is comparable to that of the main body. Suitable workpieces and reasonable interface design are adopted. , Can achieve watertight and airtight, and avoid the inconvenience caused by the use of auxiliary products, and achieve efficient and clean welding.
2. Riveting welding method: press the welding head with ultra-high frequency vibration of the ultrasonic to press the protruding tip of the plastic product to instantly heat and melt into the shape of a rivet, so that the materials of different materials are mechanically riveted together.
3. Implantation: With the transmission of the welding head and appropriate pressure, metal parts (such as nuts, screws, etc.) are instantly squeezed into the reserved plastic holes and fixed at a certain depth. After completion, the tension and torque can be comparable to the traditional The strength of the molding in the mold can avoid the shortcomings of damage to the injection mold and slow injection.
4. Forming: This method is similar to the riveting method. The concave welding head is pressed on the outer ring of the plastic product. After the welding head emits ultrasonic ultra-high frequency vibration, the plastic is melted and molded to cover the metal object to fix it, and the appearance is smooth Beautiful, this method is mostly used in electronics, speaker fixing and molding, and cosmetic lens fixing, etc.
5. Spot welding: A. It is not necessary to design the welding wire in advance to weld the two pieces of plastic to achieve the purpose of welding. B. For relatively large workpieces, it is not easy to design the welding line to perform split-point welding to achieve the welding effect, which can be spot-welded at multiple points at the same time.
6. Cutting and sealing: Using the working principle of ultrasonic instant vibration to cut chemical fiber fabrics, its advantages are smooth and clean without cracking or drawing.

Common problems of traditional welding:
1. High-temperature welding is easy to cause damage to the welding surface, and even deform the product in severe cases.
2. The welding equipment is large in size, not easy to handle by hand, and unable to complete complex procedures.
3. The welding mode is too single, the welding material is restricted, and the welding head cannot be replaced at will.
4. Adhesives and fluxes are used for welding, the welding pollution is serious, and the welding strength is not high.
5. Adhesives, studs or other mechanical fixation are used when welding, which is inefficient and costly.

Advantage:
1. High stability: The digital electric box automatically tracks the resonant frequency and adjusts the output frequency to match the handheld device. Once a fault is found, it stops working and gives an alarm. Most of the ultrasonic welding can be completed within 0.1-0.5 seconds.
2. Energy-saving and environmental protection: the welding surface is not damaged or deformed, no scratches and adhesive residue marks, avoiding the use of a large number of fixtures, fluxes, and adhesives, reducing labor and cost.
3. Reliable quality: Ultrasonic welding is solidified and formed, and the molecules are recombined to form a strong molecular chain. The weld strength can be close to the strength of the raw material, and the air tightness is good.
4. Simple operation: Ultrasonic welding is very easy to realize automation. As long as the welding parameters are set, the welding can be carried out. There is no need for preheating or cleaning.
5. Wide range of applications: Hand-held ultrasonic spot welding machines can be used for welding, riveting, spot welding of films, fabrics, and thermoplastic products, as well as inlay and edge pressing processes between metal parts and plastic parts.

Application: It can be used for welding, riveting, spot welding of films, fabrics, and thermoplastic products, as well as inlay and edge pressing processes between metal parts and plastic parts.