High-frequency welding machine is widely used in producing high-frequency welded steel pipe, it also is an important welding machine for Prime Steel Pipe. High-frequency welding machine is different from other welding machine，its function and use is not just a single welding. High-frequency welding machine can not only be used for welding a variety of metal materials, but also can be used for heat, smelting, heat treatment and other processes. Welding is just one of its many uses.
The working principle of high-frequency welding machine is: first in the high-frequency welding machine by a set of unique electronic circuits, from the power input into the low-frequency alternating current (50Hz) into high-frequency alternating current (usually above 20000Hz). When the high-frequency current is applied to the inductance coil (ie, the induction coil), the electromagnetic induction principle is used to convert the high frequency magnetic field and act on the metal object in the magnetic field. The eddy current effect is used to generate the magnetic field in the metal object Induced current, the eddy current affected by the skin effect, the higher the frequency, the more concentrated in the metal surface of the object. When the eddy current flows in the metal object, heat is generated by the principle of current thermal effect by means of the inherent resistance value. This heat is generated directly inside the object. Therefore, the heating speed, high efficiency. Can instantly melt any metal objects. And the heating speed and temperature controllable. This equipment is particularly suitable for heat treatment quenching, annealing, metal through hot forging, extrusion molding, solder welding.
1. Steel plate heating, bending forming.
2. Standard parts, fasteners through the heat molding.
3. Hardware tools, such as pliers, wrenches and other heating through the heat forming.
4. Prospecting drill rod taper shank extrusion.
5. Steel pipe, such as bending through the heat pipe.