How to deal with unilateral scald of ultrasonic welding machine?

Ultrasonic welding machine effect is not perfect at all times. If the operation is improper or sometimes the welding conditions cannot be met, welding problems will inevitably occur, affecting the welding effect.

The output energy of the upper mode ultrasound also has a certain intensity distribution point. Although the pressure, voltage, and machine platform determine the stability of the power output energy, the energy distribution point also shows a proportional increase or decrease. If a single point scald occurs during ultrasonic welding, it means that the output energy of the upper die at this point corresponds to the stress formed at this point of the product. At this time, if the contact point of the ultrasonic vibration surface is changed, the scald caused by the thermal energy cluster will be improved.

Solution:

1. Mold surface treatment (chrome plating or hardened anode)

2. Cover plastic bag

3. The upper die rotates 180 degrees.