What affects the quality of ultrasonic plastic welding machine?

If the ultrasonic welding line design parameters of the ultrasonic plastic welding machine and the materials of the two parts are the same, then the only thing that affects the quality of the ultrasonic welding is the distance between the welding line of the ultrasonic welding machine and the ultrasonic welding head, that is, the distance between the near field welding and the ultrasonic welding head. Far field welding.

Near field and far field welding of ultrasonic plastic welding machine:

What is the near field welding of an ultrasonic welding machine? What is the far field welding of the ultrasonic welding machine? Generally speaking, when the distance between the welding wire of the ultrasonic welding machine and the welding head of the ultrasonic welding machine is less than 6.3mm, we call it near-field welding, and when it is greater than 6.3mm, it is called far-field welding.

Generally speaking, like ordinary plastic materials, the closer the distance between the welding wire and the welding head of the ultrasonic welding machine, the better, it is easier to produce welding, but some special materials can only be welded by far-field welding, such as glass, Shaped materials, etc. Because the use of near-field welding is easy to cause cracks or other damage to the parts.