The principle of welding is to conduct the ultrasonic wave to the plastic processing parts through the welding head, so that the two plastic joint surfaces will produce violent friction due to the effect of receiving the ultrasonic wave, and the friction heat will make the plastic joint surfaces melt and completely join. This technology has the advantages of fast speed, strong welding, and more importantly, it can automate the processing of plastic products. Ultrasonic plastic welding machine can be plastic fusion, embedded, molding, riveting, welding, cutting, suture and other operations, only to change the welding head can be a machine to do a variety of applications. All kinds of plastic parts can be used ultrasonic welding processing, and do not need to add adhesives or other accessories, its advantages are to increase productivity, reduce costs, improve product quality.
Welding principle: the ultrasonic energy is transmitted to the welding area through the upper welding piece. Because of the high acoustic resistance in the welding area, that is, at the junction of two welding surfaces, local high temperature will be generated. And as a result of plastic thermal conductivity is poor, still cannot send out in time temporarily, collect in welding area, cause the contact surface of two plastics to melt quickly, add after certain pressure, make its confluence becomes an organic whole. When the ultrasonic wave stops working, the pressure is allowed to last for a few seconds to solidify and form a solid molecular chain. In this way, the welding strength can be close to that of the raw material.
Application range of high power ultrasonic equipment
Applicable to ABS, PP, PE, PC, PUC, PMMA, PS, PPS, PBT, PETG and other plastic materials, but also used in plastics, electronics, electrical appliances, auto parts, packaging, environmental protection, medical equipment, non-woven clothing, stationery daily necessities, plastic toys, sporting goods, communication equipment and other industries. Such as: speakers, dashboards, folders, lights, vacuum cleaners, filters, electric mosquito rackets and so on.
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