1 In the high frequency welding machine, a complete set of unique electronic lines will convert the low frequency AC (50Hz) input from the grid into high frequency AC (generally above 20000Hz).
2 After the high frequency current is added to the inductive coil (i. e. the induction coil), it is converted into a high frequency magnetic field by the principle of electromagnetic induction and applied on the metal object in the magnetic field.
3 The inductive current proportional to the magnetic field strength is generated in the metal object. The eddy current is affected by the skin effect. The higher the frequency, the more concentrated it is on the surface of the metal object.
4 When the vortex flows through the metal, it will generate heat with the help of the principle of current thermal effect. This heat is generated directly inside the object. Therefore, the heating speed is fast, high efficiency. Can instantly melt any metal. And the heating speed and temperature are controllable
