K3531 Series Ultrasonic Welder
3.Cobra generator:Timer mode
Ultrasonic Welding Machine
Ultrasonic welding of thermoplastics is cost effective because it cuts manufacturing time. Ultrasonic welding is now a widely accepted process, having been first introduced in the early 1960's.
The type of thermoplastic, the design of the parts to be welded and the design of the joint are of great important but often neglected. To take full advantage of the benefits of ultrasonic welding it is advisable to choose carefully the design of the parts, especially the joint.
It is advisable to take into consideration the different welding properties of amorphous and semi-crystalline thermoplastics when choosing the resin to be used. The selection of the plastic and the design of the critical in getting dependable and reproducible welds.
Of course, parts should be free of injection molding problems and inconsistencies such as bubbles, burned material, internal stress and sink marks resulting from the injection molding process.
Here are some factors to consider in order to achieve the best results with ultrasonic welding:
Strength requirements of the welded joint
Is a hermetic seal required
Is flash permissible
If there is a degree of flexibility on plastic resin, which resin will meet the design requirements and be best for ultrasonic welding
Positioning and type of joint design
Parts design for ease of assembly before welding
Fixture design to hold the parts in position during welding
Will it be possible to make a horn to get the required ultrasonic energy into the joint