Friends who have been using
ultrasonic welding machines for a long time will inevitably encounter uneven ultrasonic welding. Sometimes, ultrasonic welding will also cause degumming and glue spilling. Such uneven welding will lead to unsightly welding of products, insufficient welding strength of products, and weak welding of individual parts will easily lead to cracking or fracture. What are the reasons for uneven ultrasonic welding?
1. The two plastic parts welded by ultrasonic wave have different materials.
2. The design of ultrasonic waveguide fuse is unreasonable or uneven.
3. Characteristics of the weldment itself, such as moisture or flame retardant.
4. Whether the debugging of ultrasonic welding machine is reasonable.
5. Power size and power stability of ultrasonic machine.
6. The joint surface of the weldment is uneven, or the ultrasonic mold is not precise.
7. Other uneven welding problems, such as improper operation.