超声波焊接机（Ultrasonic welding machine）.doc

超声波焊接机（Ultrasonic welding machine） On the proper use of ultrasonic welding machine Summary: The welding of various plastic parts have been quite popular, the use of ultrasound equipment. The product packaging cutting. Rivet embedded. Embossing. Punch. Other industries are indispensable equipment, and every kind of various functions, ultrasonic welding also came into being, different applications, the use of methods and equipment requirements are not the same. At present, there is a big area in consumer use really. Add a description of these errors! 1) welding principle on misunderstanding There are quite a number of years engaged in ultrasonic welding of the staff. There is a misunderstanding on the transmission of ultrasonic energy, that is sonic welding on the contact surface, in fact, this is a misunderstanding, the real welding principle is: the electrical energy into mechanical transducer, conducted through the workpiece material molecules, acoustic waves in solids to conduct acoustic impedance acoustic resistance is far less than in the air, when sound waves through the workpiece joints when the acoustic resistance in a big gap, the heat generated is large. Temperature reaches the first volume point of the workpiece, coupled with a certain pressure, make the seam weld. While other parts due to thermal resistance of the workpiece temperature do not weld. Low ohm's law the principle is the same as in electrical engineering is similar. 2) the workpiece material errors: Ultrasonic welding machine on the workpiece material to be welded is also required, not all materials can be understood as any welding material can be welded, this is a big misunderstanding between different materials. Some better welding, some basic can melt, some are not melting melting point. The same material is the same, from the principle of speaking can be welded, but when the workpiece to be welded to the melting point is greater than 350 degrees, not suitable for use in ultrasonic welding.