Ultrasonic welding

During timed ultrasonic welding, one or more thermoplastic materials are connected to each other in the joining area.

Ultrasonic welding can be seen everywhere, where thermoplastics are used and the connection method is strictly required. Compared with other welding methods, ultrasonic welding is particularly suitable for situations that require fast processing time, good processing reliability, or no other fillers or solvents. Ultrasonic welding is also characterized by the quality, strength and precise reproducibility of the weld.

The process itself is very special. Depending on the application, the welding result depends on various parameters. In ultrasonic welding, high-frequency mechanical vibration will cause molecular and interface friction in the joint area. This generates the heat required for welding and the material is plasticized. Under the action of ultrasound, the uniform and stable connection area can be achieved through a short cooling time while maintaining the welding pressure. In addition, the geometry of the ultrasonic generator and anvil and the shape of the welding zone itself will affect the welding result. The essential characteristics and advantages of ultrasonic welding are as follows:

Weld different thermoplastics based on polymer compatibility, such as PP, PVC, PE, PET, ABS, composites, fabrics, wool or films. Very fast processing time. Very good process control and reliability through monitoring of welding parameters. Digital control for selective energy supply. Consistency of the welding process. Consistent welding quality, visually perfect, stable and repeatable weld seam through personalized anvil impression, visually attractive weld seam shape environmental protection technology

Low energy consumption in the welding process No welding solvents and fillers Specific types of recycling of welding workpieces

Cold welding tools

There is no machine warm-up time, the workpiece will not be damaged when the machine stops. The welding material is not damaged or folded. The packaged goods are not heated, such as in the packaging industry. The welding tool is replaced quickly and easily

Air-tight and liquid-tight welding

Waterproof welding of areas contaminated by fats, oils or natural fibers is ideal for sealing, such as packaging.