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  • 振动摩擦焊接机

What is ultrasonic welding

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What is ultrasonic welding

Date:2014-09-17 00:00 Source: Click:

Ultrasonic welding of basic elements:

     By ultrasonic welding means is a transistor current electrical function device 50 / 60Hz frequency converted to 20KHz or 40KHz power high frequency power, supplied to the converter. Converter converts electrical energy into mechanical vibrations for ultrasonic energy, mechanical pressure adjustment means can be responsible for the transmission after the change to the ultrasonic welding machine welding head. Welding head is capable of transmitting the mechanical vibration directly to an acoustic device for an nip products. Vibration welding work pieces pass through the adhesive surface vibration friction heat make the plastic melts, vibration will stop when it reaches its interface, short to keep the pressure of the melt can produce a strong molecular bonds at the surface of the cured adhesive material in the molten state, the entire usually less than one second cycle will be completed, but it was close to the welding strength is an attached material.

Ultrasonic welding technology requirements

     By ultrasonic welding machine is a fast, clean and efficient assembly process used to assemble the processing of thermoplastic parts, and some synthesized components. Currently being used in adhesive bonding adhesive plastic and metal parts and other non-plastic material between the plastic between.

     Ultrasonic welding is the weldment by transferring ultrasonic energy to the welding area, due to the welding area at the interface of two welded large acoustic impedance, thereby generating local heat. Also, because the poor thermal conductivity of plastic, for a moment, can not be distributed, gathered in the weld zone, resulting in two plastic contact surface melting rapidly, with a certain pressure, to get together. When the role of ultrasound to stop, so the pressure for a few seconds, it solidified forming, thus forming a strong chain, to achieve the purpose of welding, the welding strength can be close to the raw strength. Applicable industries: plastics, electronics, appliances, auto parts, packaging, environmental, medical equipment, non-woven fabrics, toys, communication equipment and other industries. It replaces the solvent adhesive, mechanical fastening and other bonding process, is an advanced assembly techniques. Ultrasonic welding assembly functions and connections not only with moisture, waterproof seal.


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