What is the working principle of plastic welding machine?
A: Ultrasonic plastic welding machine works
Ultrasonic welding principle is through the ultrasonic generator to 50/60 Hz current converted to 15,20,30 or 40 kilowatts of electricity. The converted high frequency electric energy is again converted into mechanical motion of the same frequency by the transducer, and then the mechanical movement is transmitted to the welding head through a set of amplitude modulator devices which can change the amplitude. The welding head transmits the received vibration energy to the joint portion of the workpiece to be welded, in which the vibration energy is converted into heat energy by friction and the plastic is melted. Ultrasound can be used not only to weld hard thermoplastics, but also to fabricate fabrics and films. The main components of a set of ultrasonic welding systems include ultrasonic generators, transducers / modulators / bristles triplets, molds and racks.
Second: rotary friction plastic welding machine works
Rotary friction plastic welding machine is generally used to weld two round thermoplastic plastic parts. When welding, a workpiece is fixed on the bottom mold, the other workpiece in the fixed workpiece surface rotation movement. Due to a certain pressure on the two parts, the friction between the workpiece heat can make the contact surface of the two pieces of melting and the formation of a confined and closed combination. Where the positioning of the melt is set at a set time rotation, and instantly stopped at the set position, a permanent fusion.
Three: hot plate welding machine works
Hot plate welding machine mainly through a temperature controlled by the heating plate to weld plastic parts. When welding, the heating plate is placed between the two plastic parts, when the workpiece close to the heating plate, the plastic began to melt. After a pre-set heating time has elapsed, the plastic on the surface of the workpiece will reach a certain degree of melting, where the workpiece is separated from both sides, the hot plate is removed, and then the two pieces are joined together. When a certain welding time is reached After the welding depth, the entire welding process is completed. Professional plastic knowledge exchange to share micro - credit group plus Xiaobian micro - letter: NB58250988
Fourth, the laser plastic welding machine works
The laser welding machine works by passing light / laser rays through a plastic part on the surface of another plastic part (ie, the welding surface); the welding surface is heated and melted after absorbing the energy of the beam. At this time, The pieces are fitted with a clamping force that can be adjusted so that they are tightly joined together. Compared with other existing plastic welding process, the advantages of laser welding process is that the optical / laser beam can simultaneously heat and weld the entire welding surface, the welding effect is more significant. Fourth, the linear vibration of the working principle of friction welding machine Linear vibration friction welding in the two welding parts to be used to produce the friction surface of the friction heat to make plastic melting. Heat from a certain pressure, a workpiece in the other surface with a certain displacement or amplitude of the reciprocating movement. Once the desired degree of welding is reached, the vibration will cease and there will still be some pressure applied to the two workpieces to cool and cure just the welded portion to form a tight fit.
Fifth, the track vibration welding machine works
Rail vibration friction welding is a method of using friction heat welding. In the case of track vibration welding, the upper part of the workpiece at a fixed speed orbital motion - to the direction of the circular motion. The movement can produce heat, so that the welding parts of the two plastic parts reach the melting point. Once the plastic begins to melt, the movement stops and the welded parts of the two workpieces are solidified and firmly connected together. Small clamping force will cause the workpiece to produce the smallest degree of deformation, the diameter of 10 inches within the workpiece can be applied with rail vibration friction welding.