In short, there's a coil if wire near the casserole pan. A current of electrons whizzes round in the coil and creates a field around it. When that field hits the pan it 'pushes and pulls' the electrons around inside the material it's made of. As the electrons in the pan get pushed and pulled around they heat up the pan, just like a piece of wire gets hot if you try to put too much current through it. That's why the pan has to be metal, or something else that's conductive, the coil has to be able to move the electrons around in things to make it hot. Because you don't want to have to plug in your pans to heat them up, the oven -couples- onto them with a magnetic field to achieve the same effect.TSN79 said:Can someone explain to me how an induction stove works? I know it has something to do with magnetism, but how the casserole can get hot while the surface of the stove itself does not blows my mind!
Induction heating is also extremely widely used in heat treating metals. A given alloy has an optimum temperature for hardening (and also for tempering). Induction heating allows for precise control of the temperature to which the metal is heated before quenching. This has allowed for automated, consistant, mass heat treatment of parts.FredGarvin said:We also use induction heaters to heat bearing assemblys before installation id the shaft fit is tight enough.