Ultrasonic welding of plastic parts consists in putting them into mechanical vibrations at a frequency of about 20 kHz. As a result, the contact surfaces of the bonded elements become heated to the plasticization temperature. At the same time the pressure applied to the bonding points causes the welding of the elements. The heat required to plasticize the material is released on the joint surface and inside the welded material by friction of the polymer particles put into mechanical vibration.
Application
Ultrasonic is widely used in the automotive, engineering, construction, aviation, electrical, electronic, refrigeration, medical, power and many others industries.
Advantages
Energy efficiency
Environmentally-friendly
No toxic glue and solvent emissions
Short binding time
High performance
Convenient and clean binding method;
Bonded elements need no special preparation
Different materials can be joined
Very accurate feed of energy required for welding
No need for binders, screws or heat from external sources
Example uses
Welding of insulation for car interior door trim
Lamination of vapor-permeable and vapor barrier roof membranes
Welding and cutting shapes from multilayer synthetic fabrics to dust mask inserts and attaching them to the nose sealing clamp
Manufacture of protective and medical clothing
Welding of individual layers of vacuum cleaner bags
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