Used welding table

Innovative ultrasonic welding machines provide many benefits

Ultrasonic welding's innovative, efficient style of using vibrations instead of heat to melt plastic makes it the perfect, clean solution to plastic-welding needs.

Ultrasonic welding, the preferred choice in plastics welding, is perhaps the most rapidly developing field in the industry. It uses high-frequency vibrations and pressure - not heat - to melt plastic pieces together. By creating frictional heat that melts plastics, these ultrasonic welding machines are used weld small- and medium-sized pieces of plastic. When the vibration stops, the plastic quickly cools and becomes solid again.
There are many benefits of electronic welding, including that the process is quick and repeatable. Further, the process does not "consume" any additional materials, which means it does not require screws, nails, bolts, soldering materials, glues or other adhesives. Ultrasonic welding machines may even be used to create hermetic seals, because the finished pieces are so strong and clean. An added benefit is that no ventilation system is required because no heating is involved.

In this process, plastic is melted into a solid-state weld through high-frequency mechanical vibrations (15 kHz to 40 kHz) and pressure. Many ultrasonic welders run at 15 kHz, 20 kHz, 30 kHz and 40 kHz frequencies.
The ultrasonic process begins with two thermoplastic pieces that have similar melting points. They are placed together, one atop the other, in the ultrasonic welding machine. Then, high-frequency vibrations are applied directly to the joint being welded. With the vibration application concentrated in the joint itself, the process melts the joint but not the base materials. When the plastic melts, the vibration is stopped and pressure is applied - and the plastics are melded. Because the process is as fast and efficient as it is, weld times are sometimes less than a second.

More and more industries are coming to rely on ultrasonic welding machines. They include the automotive, cosmetic, computer, appliance, toy, medical, electronics, textile, packaging and food industries. Ultrasonic welding is often used in the medical field because the process can ensure that no parts are contaminated by outside substances, which is why products welded with ultrasonic welding machines are able to be used for "clean rooms" in hospitals. The food and packaging industries also favor ultrasonic welding, again because the process is clean and contaminant free.

Ultrasonic welding has come a long way and is now one of the most progressive industrial techniques. It was in the late 1940s that ultrasonic waves were first used - mostly for cleaning. Then, in the 1950s, ultrasonic welding was introduced as a way to weld plastics and metals. In 1965, the patent for the process was granted to two men - Robert Soloff and Seymour Linsley. The popularity of ultrasonic welding began with the toy industry and has spread to a growing number of applications every year.

Today, ultrasonic welding is considered the leading assembly method for rigid thermoplastics. Models of ultrasonic welding machines include: ultrasonic hand guns; bench-top integrated ultrasonic welders; automation ultrasonic actuator heads and modular power supplies; and closed-loop process controls, like energy welding, distance welding, time welding, force welding, automatic frequency tuning and variable-amplitude output control. There are microprocessor and standard-time models available, as well as tools of the trade, like ultrasonic horns, fixtures, converters and boosters for all makes, models and brands of ultrasonic welders.

When it comes to companies that provide plastic assembly solutions, look for top-notch service and technical support and a company that meets each customer's individual needs. For superior ultrasonic welding machines, check out Plastic Assembly Systems at www.heatstaking.com.

At HeatStaking.com it is all about machine plastic ultrasonic welding. For all plastic welding and plastic assembly systems needs.