Working principle of high frequency welding machine

The high-frequency electromagnetic field is generated by the self-excited oscillation of the electron tube. Under the action of the high-frequency electromagnetic field between the upper and lower electrodes, the internal molecules of the processed plastic parts are polarized and arranged in the direction of the electric field.

Because the high-frequency electric field changes direction at an extremely fast speed, the dielectric material will heat up due to dielectric loss, causing the plastic part itself to generate heat and achieve welding and finalization under the pressure of the mold. When heated to form and then cooled for a period of time, the plastic can maintain this deformation.

The workpiece formed by this welding method is as strong as the rubber itself.

If two or more pieces of plastic are heated to a hot-melt state and then cooled, they are firmly bonded together. Using this characteristic, high-frequency embossing or high-frequency molding and high-frequency welding can be achieved.