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35Khz Ultrasonic Welding Equipment for Non-woven Fabric Welding Hygiene Industry
Ultrasonics is a clean and efficient method of joining or slitting
synthetic materials.While the initial investment is much more, the
long term benefits more than pay for itself.
Ultrasonic bonding uses high frequency sound to generate localized
heat through vibration and causes thermoplastic fibers to bond
together. Suppliers in the industry say the technology offers
several advantages.
Ultrasonics creates a mechanical bond rather than a chemical bond
created by adhesives. Mechanical bonds tend to hold up better in
extreme heat conditions such as may be incurred during
transportation in certain geographies. Being chemical-free is also
of potential benefit to the environment and end users with
sensitive skin.
Because ultrasonic bonding uses friction and pressure to bond
materials directly to each other, it makes the added cost of glue
and solvents, as well as the cost for added fixturing and the time
for glue to “set-up,” unnecessary. In addition, it eliminates glues
and solvents as potential sources of contamination along with the
need to clean and maintain glue and solvent application equipment.
Because ultrasonics can bond over a range of frequencies and with
varied levels of downforce, it also reduces the risk of damage to
even the most delicate nonwoven materials and filter media.
Kindly check the AMPLITUDE REFERENCE GUIDE for ULTRASONIC WELDING (in Microns (um)) table in the next page, you will find suit frequency for your application.
The benefits of ultrasonic welding are that it is much faster than conventional adhesives or solvents. The drying time is very quick, and the pieces do not need to remain in a fixture for long periods of time waiting for the joint to dry or cure. The welding can easily be automated, making clean and precise joints; the site of the weld is very clean and rarely requires any touch-up work. The low thermal impact on the materials involved enables a greater number of materials to be welded together.
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