Shorten the risk of ultrasonic mold: the welding principle of ultrasonic welding machine is that the frequency of ultrasonic generator-transducer-ultrasonic mold is almost the same, forming a vibration loop. If the ultrasonic die itself is shortened, the vibration between the transducer and the ultrasonic die will be uncoordinated, and the energy will be concentrated at the joint of the transducer and the die, thus burning the facility.
So don't modify short-wave molds or make your own molds to save costs. If the mold is worn or needs to be changed in shape, it needs to be repaired or remanufactured by a professional mold manufacturer.
Common sense supplement: 15khz ultrasonic mold length:17-18cm; 20khz ultrasonic mold length: up and down13cm; 28khz ultrasonic mold length: up and down10 cm; 30khz ultrasonic mold length: 8cm up and down.