What are the magnetic field directions and interference treatment methods of high-frequency heating furnaces?

All induction heating equipment ultimately produces a skin effect through the inverter and heating coils to quickly heat the metal to the desired temperature. Do you know the rules for the direction of the magnetic field? The characteristic of the magnetic field is that it only takes a short cut. Magnetic field lines passing through ferromagnets compared to passing through air: the speed of the magnetic field passing through the ferromagnet is much greater than the speed of passing through the air, in other words, the time it takes to pass through a one-meter-long ferromagnet Faster than passing through 0.1cm of air. Therefore, unless under the effect of an external magnetic field, the magnetic field usually does not deviate from the path.

When multiple high-frequency heating furnaces are relatively close, it is easy to cause mutual interference and cannot be used normally. If you do some safety separation, then the adjacent magnetic field will be squeezed out of the ferromagnet, forcing the machine to be magnetically independent. If multiple high-frequency heating furnaces are too close to each other, the two devices will compete. In severe cases, it will even affect the stability of the machine and the mutual interference signals cannot be heated or fail to heat. In severe cases, the heating furnace may be damaged. Based on the above reasons, the distance between multiple high-frequency heating furnaces should be as far as possible.