Causes of uneven welding of ultrasonic plastic welding machine

Experience shows that most of the uneven welding is related to the overall design of the plastic connector. The effective specifications and appearance of the ultrasonic welding wire are closely related to the actual effect of ultrasonic welding. For example, if the ultrasonic wire is too thick and the ultrasonic plastic welding machine does not have enough kinetic energy for electric welding, the electric welding will be uneven.

What is the unevenness of ultrasonic plastic welding?

1. The reason for the uneven welding of ultrasonic plastic welding electromechanical welding

Plastics that are easy to re-moisture and have too high water content can also cause difficulty in ultrasonic welding or poor electric welding, such as nylon, if it is necessary to solve the dryness before ultrasonic welding;

2. The reason for the uneven welding of ultrasonic plastic welding electromechanical welding

The output kinetic energy of ultrasonic welding equipment is unstable or the output power is too small, which will also cause uneven welding after ultrasonic welding. This type of situation must be a problem with machinery and equipment.

3. The reason for the uneven welding of ultrasonic plastic welding machine

Design of Ultrasonic Welding Wire

4. The reason for the uneven welding of ultrasonic plastic welding machine

The raw materials of ultrasonic welding parts are different. The two types of ultrasonic welding should use the same raw materials, such as PA and PA, POM and POM. Relatively speaking, ultrasonic welding of semi-crystalline plastic is not easy to weld. If the two welding consumables are different, it is proposed to make the ultrasonic structure into a mechanical device interlocking type.

5. The reason for the uneven welding of ultrasonic plastic welding machine

Plastics that are not easy to weld, such as PP, PC, polyester, and plastics, have more preservatives or glass fibers; this type of plastic has poor ultrasonic conductivity and high melting point, which makes it difficult to achieve excellent ultrasonic welding results;

After the ultrasonic welding machine welds plastic products, there will be uneven welding conditions. The welding is large in some places, and the welding is small in some places, making the product very beautiful and generous. If everything is normal in the operation of the ultrasonic equipment, this problem must be analyzed and dealt with from the design of the weldment itself.