Damage Of Internal Parts Of Ultrasonic Welded Products And Method Source

The reasons for the damage of goods after ultrasonic welding are as follows:

1. the output power of ultrasonic welding machine is too strong.

2. the kinetic energy output of ultrasonic kinetic energy amplifier is too strong.

3. the bearing point of the bottom formwork fixture is suspended in the air and damaged by the ultrasonic transmission vibration.

4. the plastic products are high and fine to form an oblique angle at the bottom, and no buffer is set to dredge the R angle of kinetic energy

5. incorrect ultrasonic production and processing standards.

6. the column or sensitive position of the plastic product shall be opened and placed on the parting line of the plastic mold.

Solution:

1. advance the ultrasonic vibration generation time (to prevent touching and vibration generation).

2. reduce the pressure and ultrasonic welding time (reduce the compressive strength specification).

3. reduce the number of output power segments of machinery and equipment or small output power machinery and equipment.

4. reduce the ultrasonic mold expansion ratio.

5. cushion vulcanized rubber at the bearing position of bottom formwork.

6. the bottom formwork and products shall be prevented from hanging in the air or gap.

7. retest the frequency after horn (lower mold) cuts the hole.

8. after cutting holes in the lower die, stick the raw materials with high ductility.