| Customization: | Available |
|---|---|
| Type: | Large range Ultrasonic Sensor |
| Sensitivity: | High |
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Ultrasonic plastic welding machine is a device that uses ultrasonic technology to weld plastics. It converts AC power into high-frequency electrical energy through an ultrasonic generator and supplies it to an ultrasonic transducer. The transducer converts electrical energy into mechanical vibration, generating high-frequency vibration waves. This vibration wave is transmitted to the welding mold through the amplitude rod, causing the mold to vibrate at extremely high frequencies. When plastic workpieces are placed between molds, vibration energy is transferred to the plastic surface. Under pressure, the friction between molecules on the plastic surface intensifies, generating heat. Due to the concentration of this heat on the contact surface of the plastic, it rapidly melts the plastic. After the vibration stops, the melted plastic cools and solidifies under pressure, thereby achieving plastic welding.
Structural composition
Ultrasonic generator: Its function is to generate high-frequency electrical energy, providing an energy source for the entire welding process. It can convert ordinary mains power into high-frequency AC power suitable for the operation of ultrasonic transducers, and can adjust the output power according to the needs of welding.
Ultrasonic transducer: This is a key component that converts electrical energy into mechanical energy. It is usually made of materials such as piezoelectric ceramics, and when excited by high-frequency electrical energy, it produces mechanical vibrations of corresponding frequencies.
Variable amplitude pole: also known as an amplifier, its main function is to amplify the small amplitude generated by the transducer to a suitable amplitude range for welding. At the same time, it also serves as a connection between the transducer and the welding mold, ensuring that vibration energy can be efficiently transmitted to the welding site.
Welding mold: Designed and manufactured according to different plastic workpiece shapes and welding requirements. The shape and size of the mold should match the workpiece, so that the ultrasonic vibration energy can be evenly transmitted to the plastic workpiece during welding, achieving a good welding effect.
Characteristic
Fast welding speed: able to complete the welding process in a short time, improving production efficiency. Generally speaking, a single welding process takes only a few seconds to tens of seconds, which greatly shortens the processing time compared to other welding methods such as hot melt welding and bonding.
High welding quality: During the welding process, the contact surface of the plastic workpiece quickly melts and fuses under the action of ultrasonic vibration, resulting in high welding strength and good sealing. The appearance of the welded plastic parts is beautiful, without obvious welding marks, and the plastic properties at the weld seam remain basically unchanged, which can meet high quality requirements.
Non contact welding: During the welding process, there is no need to directly heat the plastic workpiece, avoiding problems such as surface damage and deformation of the plastic caused by contact heating. At the same time, it also reduces pollution to the welding environment and meets environmental protection requirements.
Strong adaptability: It can weld various types of plastics, including common plastics such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, as well as some engineering plastics. For plastic workpieces of different shapes, sizes, and structures, it is only necessary to design corresponding welding molds to achieve good welding results.
Application area
Automotive manufacturing: used for welding plastic components such as car interior parts, headlights, dashboard, bumper, etc. For example, plastic door panels in car interiors can be firmly connected to plastic components of different materials through ultrasonic plastic welding, improving the overall quality and aesthetics of the interior.
Electronic appliances: commonly used for welding plastic casings, sockets, switches, phone cases, and other components in the production of electronic devices. Taking the phone case as an example, ultrasonic plastic welding can quickly weld the front and rear cases of the phone together, ensuring the sealing and strength of the shell, while not affecting the appearance and performance of the phone.
Packaging industry: can be used for welding plastic packaging containers, bottle caps, plastic films, etc. For example, the connection between the cap and body of plastic beverage bottles can be quickly and firmly sealed using ultrasonic plastic welding technology, ensuring that the beverage will not leak during storage and transportation.
Medical devices: Used in the manufacturing of medical devices for welding plastic syringes, infusion sets, blood bags, medical catheters, and other products. Due to its high welding quality and pollution-free advantages, ultrasonic plastic welding can meet the strict requirements of medical devices for hygiene and safety.
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