| Overview of ultrasonic plastic welding machine | |||
| Source：鑫电工程部 Click：5659 FreshTime：2011-05-11 08:18:13 | |||
| Working principle of ultrasonic plastic welding machine When the ultrasonic role in the thermoplastic plastic contact surface, it will generate tens of thousands of times per second, high frequency vibration, which reaches a certain amplitude of high frequency vibration through the welds to ultrasonic energy transmitted to the welding area, the welding area that the two a welding of large acoustic impedance at the interface, and therefore produce local temperatures. Also, because the poor thermal conductivity of plastic, for a moment in time can not be distributed, gathered in the welding area, leading to the contact surface of both the rapid melting of plastic, plus a certain pressure, to get together. When the role of ultrasound to stop after a few seconds so that the pressure to make coagulation, thus forming a strong chain, to achieve the purpose of welding, weld strength can be close to the raw intensity. The quality of ultrasonic plastic welding transducer depends on the amplitude of the welding head, the pressure and welding time plus three factors, welding time and weld head pressure can be adjusted, the amplitude of the transducer and horn decisions. The three have a suitable amount of the value of the interaction, the energy exceeds appropriate value, to a large amount of plastic melting, welding was easily deformed; if the energy is small, is not easy to weld, the increase of pressure can not be too big. The best part of the pressure is welded with the edge of each side of the best pressure 1mm product. Ultrasonic plastic welding method 1, the welding method: ultrasonic welding head with the ultrasonic vibration transmission to the welding parts, welding the two pieces of the acoustic resistance at the local high temperature resulting large contact surface to melt. Under some pressure, so that the two weldments achieve beautiful, fast, strong welding effect. 2, the implant (interpolation) methods: a nut or other metals like insertion of a plastic workpiece. Transmitted first ultrasonic metal, the high-speed vibration, the metal directly embedded within the plastic molding the same time, the plastic melted, buried inserted after the completion of the curing. 3, riveting: wishing the nature of metal and plastic or two different plastic bonding together, can make use of ultrasonic riveting, welding pieces of the hard brittle, beautiful, strong. 4, the spot welding method: using a small welding head to two points of large plastic welding, or welding the first row of teeth on a direct pressure on the two plastic parts on the spot so as to achieve the effect. 5, the shaping method: the use of ultrasound to melt plastic parts forming an instant, when the plastic solidification of metal or other materials can make the plastic stronger. 6, excision: the use of welding head and the base of the special design of way, when the first injection of plastic parts, the direct pressure on the plastic branches, to cut through the effect of ultrasonic transmission. Ultrasonic plastic welding machine for industry and the products generally used in ultrasonic plastic welding machine automotive industry, electronic industry, medical industry, appliance industry, non-cloth clothing, office supplies, packaging industry, toy industry and so on. Such as plastic body parts, car doors, automotive car dashboard, lights, mirrors, sun visor, interior parts, filters, reflective material, reflective spike, bumper, cable, motorcycle plastic filter, heat , brake fluid tank, oil cups, water tanks, fuel tank, air hose, exhaust purifiers, tray plate; Plastic Electronics: prepaid water meter meters, communications equipment, cordless phones, mobile phone accessories, cell phone case, battery case, charger 【Top】【Print】【Back】
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