factory price 2000W Ultrasonic Welder for PP Corrugated Plastic Box PP sheet ultrasonic turnover box sealing
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- Supplier: Ningbo Nengpai International Trade Co. Ltd.
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Product Overview
Description
Product DescriptionHow Ultrasonic Assembly Is Done
WHAT IS ULTRASONIC WELDING?
How Ultrasonic Assembly Is Done
Ultrasonic assembly is accomplished by converting high frequency electrical energy into high frequency mechanical motion. That me- chanical motion, along with applied force, creates frictional heat at the plastic components' mating surfaces (joint area) so the plastic material will melt and form a molecular bond between the parts. Standard 50 or 60 Hertz AC line voltage is supplied to the generator (power supply) and converted to 15,000 or 30,000 Hertz (i.e., 15 kHz or 30 kHz) AC electrical energy. This high frequency electri- cal energy is connected to a piezoelectric transducer (converter), which changes the electrical energy into mechanical vibrations. These vibrations, when applied to a part under force, will create frictional heat and cause the plastic to melt at the joint area. As the plastic cools, a homogeneous molecular bond is formed between the components.
WHAT IS ULTRASONIC WELDING?
Ultrasonic plastic welding is a state-of-the-art technology used to form a permanent bond. Mechanical vibrations generate frictional heat until the plastic parts reach melting point and can be pressed together. The advantage of ultrasonic plastic welding is that it can be applied to embed metal parts into plastic. Fusing plastic and metal has become an important issue as plastic replaces other materials in the automobile industry. From steering wheels to door panels, the advantages of ultrasonic plastic welding include low cycle times, automation and flexibility. In addition, ultrasonic plastic welding doesn't damage surface finish because high-frequency vibrations prevent marks from being generated. This is a serious consideration for many car manufacturers because flaws can impact their bottom line.
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