GST culture bottle ultrasonic automatic welding leak tester understands that in the actual application of production, for plastic products with particularly complex shapes and structures, it is often difficult to be injection molded at one time, and various connection technologies need to be used to connect the injection molded parts. As an efficient connection method for plastic products, ultrasonic welding technology can shorten product production time and improve production efficiency.

　　However, due to the particularity of ultrasonic welding, not all plastics are welded in this way. So what kind of plastic is more suitable for ultrasonic welding? First, you need to understand the working principle of ultrasonic welding.

　　1. The principle of ultrasonic welding

　　The basic principle of ultrasonic welding is to rely on the local high temperature generated by ultrasonic high-frequency vibration, and apply a certain pressure to make the two welding materials fuse together.

　　The welding process can be simply expressed as: power supply box (mains AC)→high-frequency high-voltage signal→transducer→high-frequency mechanical vibration→high-speed friction between the two parts of the plastic product→heating to the melting point of the product itself→the interface of the product melts rapidly+ Certain pressure→cooling forming→perfect welding.

　　2. Ultrasonic welding requirements for plastics

　　So what kind of material is more suitable for ultrasonic welding technology?

　　Ultrasonic welding technology requires that the plastics used as materials have a relatively low melting point. When using, the welding wire design of the product should be considered according to the characteristics of the product itself.

　　The properties of the plastic used in the material are important factors to be considered, such as amorphous or crystalline. The selection of plastic with suitable properties has an impact that cannot be ignored on the stability of the welding effect.

　　Generally speaking, materials such as PC, PA, PE, PS, and PPE can be used for ultrasonic welding. Especially the welding effect of ABS and PS is better.