Ultrasonic welding transducer is usually used for plastic welding. It completely replaces the traditional industry of glue bonding. In the process of ultrasonic welding, there are no bolts, nails, buckles, welding materials or adhesives. It is faster than the traditional adhesive or glue water, and the drying time is very fast. The welding process can be easily automated, Can be easily customized to adapt to various types of specific specifications of products to be welded.

 

 

Due to the different use occasions and welding materials, ultrasonic plastic transducers have different welding sizes and specifications. Its output power is from manual welding.

Ultrasonic has the following characteristics:

1. Ultrasonic wave can propagate effectively in gas, liquid, solid, solid melt and other media.

2. Ultrasound can transfer a lot of energy.

3. The phenomenon of interference, reflection and superposition will be produced.

4. When ultrasonic wave propagates in liquid medium, it can produce strong impact and cavitation on the interface.

Ultrasonic spot welding is a kind of assembly method to connect two thermoplastic parts without forming hole or energy guide rib in local position. Ultrasonic spot welding produces strong structural weld, which is suitable for large parts, thermoplastic extruded or cast plastic plates, thermoplastic corrugated plates and workpieces with complex geometry and hard to access joint surface. This paper discusses the principle and mechanism of ultrasonic spot welding, spot welding adaptability, spot welding varieties, process parameters, equipment requirements, characteristics and application