Two-frequency method and devices for drip- and leakage-free electromagnetic levitation melting

In this paper a new method for the electromagnetic levitation melting of metallic samples with greater weights and axisymmetrically stabilized positions is presented. The method can be used in a melting furnace with or without a cold protective wall, as well as for the coreless induction valves applied for flow rate control, e.g. in the continuous casting of molten metals. The applicability of the method was experimentally examined and proved by tests conducted with three types of laboratory setups.