High Strength 20Khz Ultrasonic Welding System for Femcare And Hygiene Welding

Ultrasonic technology produces strong, repeatable seams and joints, withstands sterilization processes, and eliminates the need for solvents or glues, it not only solves medical nonwoven and device manufacturing problems, but does so while reducing the risks and sources of potential contamination.New opportunities for ultrasonics in the nonwovens industry are everywhere, driven in the short term as manufacturers learn more about the value and versatility of this process, and in the longer term by changing demographics. As the number of older citizens in the U.S. and many western countries continues to grow as a share of total population, the demand for medical, sanitary, consumer care, bedding, seating, cleaning, and filtration products will only continue to grow. So too will the need to produce these products efficiently, with maximum cleanliness and minimum risk of contamination. Ultrasonic offers the perfect solution to this growing need because of the equipment’s’ unique ability to handle a broad scope of nonwoven product manufacturing, including slitting, cutting, embossing, quilting and bonding. ultrasonics is a technology that has become more and more accepted as time passes. Raw material suppliers understand the benefits of ultrasonics and often construct their materials with bicomponent fibers so the end user may join nonwovens with this technology, thus eliminating the need for consumables such as adhesives, needle and thread or mechanical crimping devices. For joining complex injection molded thermoplastic parts, ultrasonic welding equipment can be easily customized to fit the exact specifications of the parts being welded. The parts are sandwiched between a fixed shaped nest (anvil) and a sonotrode (horn) connected to a transducer, and a ~20 kHz low-amplitude acoustic vibration is emitted.When welding plastics, the interface of the two parts is specially designed to concentrate the melting process. One of the materials usually has a spiked or rounded energy director which contacts the second plastic part. The ultrasonic energy melts the point contact between the parts, creating a joint. This process is a good automated alternative to glue, screws or snap-fit designs. It is typically used with small parts (e.g. cell phones, consumer electronics, disposable medical tools, toys, etc.) but it can be used on parts as large as a small automotive instrument cluster. Ultrasonics can also be used to weld metals, but are typically limited to small welds of thin, malleable metals, e.g. aluminum, copper, nickel. Ultrasonics would not be used in welding the chassis of an automobile or in welding pieces of a bicycle together, due to the power levels required.