How To Open The Ultrasonic Welded Plastic Shell?

Generally this kind of ultrasonic welding of plastic shell welding point is on the inside edge. Externally, there is a narrow gap at the junction. If you want to disassemble it, start from this gap. Before using the tool, use your hand to press one side of the gap, and press the four edges. At this time, you can hear the sound of weld cracking, but the welding is not completely cracked. First use a steel plate ruler narrow head along the seam around the weld prying, if the welding point is not very large, to be pried around the plastic shell can be separated. If the solder joint is very large, then do not use the narrow side of the steel ruler to pry, to use the long side of the steel ruler flat in the gap, to pry. If there are two steel ruler on both sides of the power housing on one side of the pressure lever. In this way, the power supply housing can be completely removed.

Ultrasonic welding uses high frequency vibration wave to transfer to the surface of two objects to be welded, and makes the surface of two objects rub against each other under pressure to form fusion between molecular layers. Ultrasonic welding is the conversion of 50/60 Hz current into 15, 20, 30 or 40 KHz electrical energy through an ultrasonic generator. The converted high frequency electrical energy is again converted by a transducer into mechanical motion of the same frequency, which is then transmitted to the welding head through a set of amplitudes that can be changed. The welding head transmits the received vibration energy to the joint of the part to be welded, where the vibration energy is converted into heat energy by friction to melt the plastic. Ultrasonic waves can be used not only to weld hard thermoplastics, but also to process fabrics and films.